#iot

1 messages · Page 2 of 1

severe socket
#

Would it be possible to add Plug and Play Device Templates for the PyPortal?

severe socket
#

I'll be around on here 9-5pm EST tomorrow to discuss more, can also email or voice chat 🙂 . It's something I've wanted since originally writing the guide.

#

@sullen field I need to update that guide. Will be updating it soon.

lucid flame
#

@severe socket I'll ask! I don't know what the certification process is, but I know the people who will know.

severe socket
#

@lucid flame perfect - do let me know (I can shoot you my email over DM if that'd be easier). Speeding up the process for spinning up a new device on Azure IoT is the goal, templating seems like the fastest way

sullen field
#

PnP templates for the PyPortal woudl be a huge win

lucid flame
#

I agree. I'm hoping we can do something

wide parrot
#

First line is the string produced by json.dumps() on the dictionary I created

#

Any ideas? I'm afraid I can't easily decipher that section of the library...

merry helm
#

Hello

#

Does anyone have any suggestions for a LORA module?

#

In particular an AS923 compatable one?

#

Currently I am using a RAK811, but would prefer something from a better vendor

white junco
merry helm
#

Yeah no, not that.

trail pagoda
#

I was also going to suggest the RFM9xW modules. Can you clarify why you don't like them?

merry helm
#

I want an SPI/UART interface, I do not want the uC filled with code to deal with lora.

#

Tried it already.

#

I want a simple module which is self contained, and ideally easily assembled for prototyping

#

Leaving the main uC to do the main logic, overall control of things

#

LORA playing up? reset. Sorted.

#

I should say lorawan to be more precice.

trail pagoda
#

Ah, so you want a module with its own microcontroller that accepts like an AT command set? Don't have any recommendations there, but they likely exist.

merry helm
#

They do, as in the RAK811, or RN series.

#

But AS923 is sort of unique

#

I might look into the microchip SAM series later, as it's a uC with an RF module on board, but is in an awkward package and needs external bamdpaass filters and all sorts of drama.

#

Definately not a stand alone module, but a potential thing going forward

severe socket
#

@merry helm I've heard good things about the RAK modules

merry helm
#

Yeah they work, but they changed their firmware randomly, and their new firmware spews out the app key over serial on power up, so not very secure.

spare ferry
#

Could somebody help me how to write circuit python code to send data to iot via mqtt or json. I have GPS and I want to send this data via wifi.so, I can connect wifi and also I can send data to adafruit io. But I don't know how to send this data to other iot like freeboard. I will be appreciated if help me.

dim agate
spare ferry
#

@dim agateyes, I did. I can send data to adafruit io. But I can't send data to other iot like freeboard, and I can't send to dweet.io.

dim agate
#

Hi @spare ferry I have not heard of Freeboard or Dweet, but I looked into it a bit. Freeboard is a dashboard site that displays data it does not appear to have an HTTP API or MQTT broker to which you send data. It sits on top of other services such as Dweet. Dweet.io has an HTTP API (scroll down to Dweeting https://dweet.io/). It is not an MQTT broker. They do not have a CircuitPython library for Dweet published. If you want to use Dweet you'll need to learn to post data to their URL as they show in their example. You can do this using CircuitPython Requests https://github.com/adafruit/Adafruit_CircuitPython_Requests

GitHub
adafruit/Adafruit_CircuitPython_Requests

Requests-like interface for web interfacing. Contribute to adafruit/Adafruit_CircuitPython_Requests development by creating an account on GitHub.

#

You're not worried about the JSON stuff. You will want to use response = request.post(DWEET_URL) and the response should come back as in the Dweet docs.

#

I hope that helps and let us know how it goes.

merry helm
#

Potatos.

copper lark
#

fyi wifitest.adafruit.com looks like it's responding with a 403 error now, not the standard test that's in learn guides

hot seal
#

hmm -- well - it still demonstrates that WiFi is working 😉

severe socket
#

@copper lark it looks up for me

copper lark
#

http://wifitest.adafruit.com/ is what I saw in examples, maybe I was mistaken and missed a path somewhere. That is still 403. Your link does work. @severe socket

severe socket
#

@copper lark a lot of the examples append the testwifi on

civic sand
#

May I ask what is your recommended LTE/4G module to be used in Canada?

#

I am looking at LARA-R202 and SARA-R410, both from uBlox, but there has been few uses cases I found.

Has anyone made IOT projects using LTE/4G modules from Quectel, Telic, Simcom or any other LTE modem manufacturers?

charred mountain
#

From what little I have done uBlox seems to be the way for hobbyist

#

Idk about specifically canada, they should share the same GSM/LTE frequencies as US

dim agate
#

Hi @civic sand are you designing your own board, or trying to pick a board which has one of those LTE modules?

#

(curious)

#

But, the general thing is the ITU Region (North and South America is Region 2) and sometimes they will call out specific carriers they support.

civic sand
#

Idk about specifically canada, they should share the same GSM/LTE frequencies as US
@charred mountain which module from ublox did you use? would you be able to share some references?

charred mountain
#

They dont make it anymore, but like @dim agate I would say fona is also a great option

civic sand
#

Hi @civic sand are you designing your own board, or trying to pick a board which has one of those LTE modules?
@dim agate I am working on a HW IoT project using an available LTE module that is compatible with Canadian telcos. It looks like the LTE modules with AT&T is better to use than Verizon. My list now include: uBlox SARA-R410, uBlox LARA-R203, and Telit ME910C1-WW. These all work with Hologram.io too.

dim agate
#

Off the shelf boards with LTE I am aware of:

#

There is also Pycom and Photon

charred mountain
#

Darn, I keep seeing dev boards on the back of a 18650 holder, I thought my PCB was being clever 😫 😜

sly roost
#

Yeah, I guess there's a whole battery of them now.

civic sand
#

Can I use a regular phone LTE sim to these LTE modules?

I was looking at different Telcos in Canada and they seem to offer the LTE-M only for businesses.

white junco
#

I suspect that would work. Here in the US, there are companies that will give away SIMs for existing customers for low usage data (<200MB/month).

stoic arrow
#

@civic sand LTE-M and NB-IoT requires special configured SIM cards so I don't think regular LTE SIM's work for LTE-M and Nb-IoT devices. Afaik LTE-M and Nb-IoT is currently very early so I reckon they will release it for private use in a year or two.

#

It should also be noted that LTE-M (CAT-M1) and Nb-IoT have different sets of channels than regular LTE. In the case of CAT-M they have a new downlink channel called mPDCCH and in the case of Nb-IoT they have two new uplink channels (NPUSCH and NPRACH). These channels are entirely separate from regular LTE channels and requires new hardware to decode.

civic sand
#

I suspect that would work. Here in the US, there are companies that will give away SIMs for existing customers for low usage data (<200MB/month).
@white junco I finally got my LTE Pi Hat (using LARA-R203) to connect with Rogers Wireless in Western Canada using my Hologram.io sim. It says LTE connected in Hologram’s dashboard but my m-Center software for uBlox LTE module says GPRS.

#

I also found that Telus is offering LTE-M with 100mb for C$35 monthly which is cheaper than the current setup. Thanks @white junco for responding.

#

Thanks @stoic arrow.

kindred rapids
#

Hey, this is my first attempt at IoT stuff (I've mostly been in the 3D printing channel) and I'm trying to get the Adafruit AirLift coprocessor working with the SparkFun Artemis module which I am using for machine learning (it would be great to see Adafruit come out with a similar module, but that is for another topic). I am trying to get Adafruit's WiFiNINA library working with it but it gives the error that "Client.h" is missing. After delving into the files of the library to attempt to fix this myself, I couldn't find a header file called "Client". Has this been somehow abstracted out?

trail pagoda
#

That may be referring to the base Arduino networking Client.h library, usually listed as part of the Ethernet support.

kindred rapids
#

@trail pagoda Thanks for the quick response, with that information, I was able to find the files in the AVR core and copied them over to my project, I'll post an update on how it goes. Thanks again!

kindred rapids
#

That did the trick. For future reference if anyone runs into this same error, copying "Client.h", "Udp.h" (there are 2 files, use the one with an uppercase 'U'), and "Server.h" from the Arduino core into your WiFiNINA library solves the issue.

trail pagoda
#

Awesome, thanks for circling back with the solution! 💯

dark vector
#

can anyone help me about thingspeak pls?

wicked elbow
#

@dark vector Can you post relevant code? It may be a mismatch between the URL and the Channel Settings.

dark vector
#

I understand the problem , thx

stoic arrow
#

I bought it a while ago but in my country the operators dont give out nbiot configured sims to just anyone so I have not been able to hook it up yet to see how it works. Have anyone else played around with this thing? Do you feel that it works good?

severe socket
#

It's a new mesh network protocol which uses a combined network of LoRa, WiFi or bluetooth links

hot seal
#

Thanks!

little arch
#

anyone know any iot kit for beginners ?

lucid flame
#

What are you wanting to do with it? Just code a device and control things/gather data, or actually connect to the cloud to do internet stuffs?

#

How beginner do you need as well?

#

As in never done anything, coder but new to IoT...

flint token
#

Which device(s) would best be used to get readings of blue and red light wavelength from LED bulbs and from the readings get to control the LED bulbs?

trail pagoda
#

For the sensing, perhaps either https://www.adafruit.com/product/1334 or https://www.adafruit.com/product/3595 ?

RGB Color Sensor with IR filter and White LED - TCS34725

Your electronics can now see in dazzling color with this lovely color light sensor. We found the best color sensor on the market, the TCS34725, which has RGB and Clear light sensing ...

Adafruit APDS9960 Proximity, Light, RGB, and Gesture Sensor

This breakout is chock full o' sensors! Add basic gesture sensing, RGB color sensing, proximity sensing, or ambient light sensing to your project with the Adafruit APDS9960 ...

flint token
#

Thanks! 👍 @trail pagoda . Can the RGB Color Sensor with IR filter and White LED be adjusted to get readings only for a given range frequency or wavelength of light?

trail pagoda
#

@flint token No, they just have fixed wavelengths set by the optical color filters. If you need a little more precision without jumping up to a real spectrometer, AMS has some sensors with 6, 8, or 18 color bands. I don't think Adafruit has breakout boards for those, but Sparkfun does.

blissful perch
#

Hi all, I hope that this is the right chat to ask this question: i would like to create a LoRa mesh in which people can connect to it via their phone so that they can send small amount of information e.g. what food they need. and for that to be communicated back to the main device/computer. Is this possible? I have been inspired by project OWL Ibm call for code. I want to achieve something similar to do and that would be much appreciated.

#

Please @blissful perch if you respond

trail pagoda
#

@blissful perch I'm not really understanding the need for LoRa. If people are already using their phones, wouldn't you just use the cellular network for communication?

hard canopy
#

@blissful perch how are people going to connect to the LoRa with their phone?

#

@trail pagoda They won't connect with their phone over cellular, the idea of project owl, afaik, is to have something deployable in the world when those services go down

#

I think what he's talking about is trying to make something that people can connect to with their phone in the absence of cellular. Unfortunately I think there's some confusion because there is no phone that I know of which has lora

trail pagoda
#

Ah, I see. For the phones to connect, I guess you'd want to have WiFi access points with a LoRa backend.

hard canopy
#

So it would have to be like a wifi gateway or something

#

Exactly

trail pagoda
#

Or just a public terminal where people can walk to it and type messages, maybe, since it'll be inherently short-range and low-bandwidth as a hotspot anyway.

hard canopy
#

That would probably work too

blissful perch
#

Yes, something like this, do you have any suggestions on how this can be achiveed.

flint token
#

@trail pagoda what did you mean when you meant by AMS?

trail pagoda
wintry bison
#

Hi, to all IOT developers

#

We are trying to develop a software defined radio specifically for IOT protocols

#

just to give a feel we recently able to loopback signals over the air using gnuradio

#

on the other side we will give full support of Python APIs and examples with Jupyter Notebook

severe socket
#

neat!

dry trail
#

hey

#

anyone know where to dump the firmware from this device

dry trail
#

heres a better photo

cosmic pike
#

For IoT temperature/humidity sensing throughout my house I've gone two different routes: Arduino MKR WIFI 1010 with ENV SHIELD and Raspberry Pi Zero W with the Enviro pHAT. Both solutions are ~$60. For the bathroom, where the humidity reading triggers the fan to come on, I like the Enviro pHAT with its little LCD screen. Elsewhere, it doesn't need to look pretty or provide any feedback (at least not at this point in the project) I noticed that https://www.adafruit.com/product/4566 was only $4.50 and that the Feature HUZZAH is $19.95, which is a LOT cheaper than $60. Add $7 for the power supply and it's basically half price. Is there an even cheaper board than the Huzzah that could do WIFI and I2C for this?

Adafruit AHT20 - Temperature & Humidity Sensor Breakout Board

The AHT20 is a nice but inexpensive temperature and humidity sensor from the same folks that brought us the DHT22. You can take sensor readings as often as you like, and it uses standard I2C ...

wicked elbow
#

@cosmic pike Hard to beat the price of the Zero W. The Enviro pHAT is somewhat expensive. If you just need temp and humidity and don't require a hat form factor, you could use many different temp/hum sensors on I2C, depending on your requirements for accuracy. To shave off more cost, I think you'd have to go to bargain ESP32 modules... more DIY and not necessarily well-supported. Under development is the ESP32s2... we don't know prices of Feathers or other Adafruit kit yet, but the Espressif dev board is only $8 (Espressif IDF, CircuitPython alpha code no wifi yet, Arduino I believe coming in the future).

cosmic pike
#

@wicked elbow thanks for that info. I think perhaps an ESP32 module is a little more than I'm prepared for at the moment. I think Zero W plus SD Card is within spitting distance of the Huzzah. At that point I think then it's about whether I want a device that has a full Linux install (and both awesome of a full system and drawback of maintenance and potential card corruption) or an Arduino or CircuitPython device (and all the awesome and drawbacks - no SSH, harder to debug, etc). It is a strange world we find ourselves in where a dev board and a full computer (albeit an anemic one) are roughly the same price.

wicked elbow
#

@cosmic pike Very true, there are very enticing devices at this price level, quite different in characteristics. I'm working on a project, not really parallel functionality but similar objective, on both ESP32/Arduino and Raspbery Pi Zero W, and I struggle with the same trade-offs. I find the ESP32s rock-solid, they'll run for months, whereas the RPi takes a lot more to keep it stable... systemd for when the code inevitably stops, etc., but easier to make changes to the code and can't beat headless with ssh.

sly roost
#

You might want to check off ESPHome. My home setup is an ESP8266 in my geekroom and an ESP32 out on my back patio and just wiring up discrete sensors to the I2C bus worked out really well.

#

I kinda got burned because I got a Pimori RainbowHAT and it has a temperature sensor but I couldn't ever get a really accurate reading with my Pi3 because it's too hot.

cosmic pike
#

thanks for the suggestion @sly roost . I'll see with this one. THeir code on github does have a correction factor for the CPU

sullen frigate
tacit bane
#

Is there a library for MCUs with native USB that implements Ethernet over USB? I'd like to explore some ideas in that area.

#

I do know I can do this with a Pi Zero W. But curious if I can go bare metal.

charred mountain
#

TinyUSB is currently working in support for a RNDIS driver but I have no idea how good it is, if its what you want, or if its complete

glacial fable
#

About the tinyusb github source:
last official is: 0.6.0 - 2019.03.30

But the frequently commits based on issues are done very well. Last commit is 2 days ago.

tacit bane
#

TinyUSB is currently working in support for a RNDIS driver but I have no idea how good it is, if its what you want, or if its complete
@charred mountain
Aah yes this would be nice. TinyUSB also supports ESP32-S2 right? My dealer says he can score a few by mid-August and I've asked him to reserve a couple 😄

#

Honestly, life would be so much better if there were cheap Linux development boards which came with native ADCs. And maybe expensive versions of the same that had a super low power consumption lol.

charred mountain
#

I think you would be blown away by what you can run linux on. According to the github page it does support the S2 but the guys working on the S2 only got USB working recently so would just understand it might not be 100% bug free and will get better over time like wine @tacit bane

tacit bane
#

@charred mountain yeah Linux runs absolutely everywhere lol. Just that it's hard to find decent documentation for a lot of boards, which is why RPiF makes lots of money and others struggle to push their technically superior but undocumented products. I got an Orange Pi for super cheap but I couldn't figure out what direction they were counting pins from. It was from the left for one row and from the right for a different row. Super weird.

#

I'll keep my eyes out on TinyUSB on the S2.

#

The dealer I spoke to told me he's taken orders from larger clients (>200 MOQ) for ESP32-S2 modules from Ai Thinker and delivered a batch already, with another one expected soon, but their website doesn't even list ESP32-S2 boards. Super early times lol.

true venture
#

Free Usage
Feeds: 7 of 10
Dashboards: 1 of 5
Rate: 30 / minute
Current Usage: 0 / min
Storage: 30 days

Hourly ban rate: 3 / hour

#

what is the "Hourly ban rate" ?

#

and an Rate of "30 / minute" means 30 updates per minute per sensor? or total for account?

shut kindle
#

Hi all, I am attempting to make a smart hot water tank/heater for my campervan that im building. I was thinking of us esp 32 s2 so that i can have low energy usage and post stats to a server that will display my usage in some web interface ill build to control the camper van with. Should i use the esp32-s2 or can someone recommend something better for the application?

trail pagoda
#

If you want WiFi and a microcontroller, the ESP32 is a pretty decent choice. I'm a little fuzzy on the tradeoffs of the S2 versus the original model, though... it's not necessarily a clear-cut upgrade.

shut kindle
#

from my understanding the s2 is much more efficient at wifi

#

among many other improvments

#

im basically looking for the most efficient/smallest wifi microcontroller, since it will do very basic things for this application

hot seal
#

Note that the s2 does not have BLE if that matters.

shut kindle
#

nope doesn't matter, infact thats better

#

now i just have to find a place to buy the esp32s2 in canada, i have a few esp8266 that ill probably prototype with

charred mountain
#

@trail pagoda just for future reference, it isn't really an "upgrade" but rather an alternative, the S2 lacks bluetooth, has less ram & flash, lacks CAN & SD, has a single application processor, but adds more IO, half the sleep current, better ADC, time of flight capability, RISC-V ULP processor, and ability to have 1Gb external flash

trail pagoda
#

Thanks for the summary!

white junco
#

However, I think it has native USB as well, making it a candidate for CircuitPython

wicked elbow
#

Yes, the ESP32-S2 runs CircuitPython 6.0.0-alpha, currently including digitalio, busio/I2C/SPI, displayio, and more. Wi-Fi and other peripherals under active development.

charred mountain
#

Oh yes, I forgot the most important tidbit, built in USB! 😜

fossil mural
#

what is IoT?

subtle jungle
#

https://en.wikipedia.org/wiki/Internet_of_things

Internet of things

The Internet of things (IoT) is a system of interrelated computing devices, mechanical and digital machines provided with unique identifiers (UIDs) and the ability to transfer data over a network without requiring human-to-human or human-to-computer interaction.The definition ...

fossil mural
#

ok

white junco
#

<@&327289013561982976>

dusky lichen
#

Any self-hosted free dashboard solution you can vouch for?

#

I have a RPi which sends sensor data. This sensor is sold to many customers. I want to create a dashboard to view sensor data.
What do you guys think about Thingsboard?

charred mountain
#

I havnt seen thingsboard before but as someone who works on similar solutions it looks quite nice

#

Looks like what you need

#

Normally Im quite disappointed with solutions like that

dusky lichen
#

@charred mountain why? Do you work in IoT?

#

I'm looking for an introduction to these stuff..Is there an online course or good book? Like why MQTT instead of REST

charred mountain
#

I do, I am always disappointed because many solutions fall short either on data transport, provisioning, control, ability to integrate with other solutions, security, etc etc. And its not like the engineers making the solutions know better or worse, a lot of solutions seem driven by a bean counter instead of technically what is a good foundation to build devices on. And I mean a lot of this you can find good resources online, MQTT is used because you can send messages bidirectionally

#

HTTP (REST) forces your devices to poll the api constantly

dusky lichen
#

@charred mountain Are u a more like a web-dev guy or embedded guy? Did u study software/cs?

wicked elbow
#

@charred mountain I'm intrigued by WebSockets, but haven't done much. Do they give (at least at a lower level) some of what people may be going to MQTT for?

charred mountain
#

Embedded guy, and no I dont have a degree.

wicked elbow
#

I'm hoping we can have WebSockets in CP

charred mountain
#

And websockets are meant to be used between the browser and device, there is no reason to use websockets over MQTT in this situation, MQTT is very lightweight, has a topic system, little overhead, auth, and various QoS settings

#

You could used WS if you wanted to @wicked elbow but I dont see why youd choose it

wicked elbow
#

Just seems to me that since WebSockets is a lower level protocol, I can bend it more to my will 😉

charred mountain
#

Sure, but that means you will need to put layers on top of it, creating extra overhead

dusky lichen
#

@charred mountain But for these stuff, higher level stacks are more important right? Django/Vuejs and the like

charred mountain
#

Idk what you mean @dusky lichen

dusky lichen
#

@charred mountain For developing a dashboard in IoT, one must be a webdev, right?

charred mountain
#

Yes, I dont work on the dashboards, the thingsboard is both the dashboard solution and backend it appears

dusky lichen
#

Yes backend is written in Java, front in Angular

#

@charred mountain Are u in cali bay area?

charred mountain
#

No, Im in Maine

dusky lichen
#

I'm really REALLY suspicious of the whole IoT fad. I think they are butchering privacy, reliability and the like...but what could I do...everywhere they are talking about iot, blockchain and buzzword_currentyear

charred mountain
#

I like the term connected embedded

#

I agree with you on that

dusky lichen
#

Industry 4.0 😒

charred mountain
#

Yep, lol. Glad someone shares that opionon

#

Curious why they chose java, I guess its really not an issue but I love golang for writing backends for connected embedded, the language really fits the use case

charred mountain
#

Would like to note, one thing I dont like is the security model for device claiming, but not many solutions do it better so not really a reason not to use it ig

dim agate
#

@charred mountain How do you feel about devices having X.509 certificate based IDs which are then used to connect device to services \ accounts. (I.e., this ID goes to this Customer)

charred mountain
#

Well not for an ID, usually with IDs I try to base it off a hardware ID, normally the serial number of a flash or crypto IC on the product

#

But the device should have a root key, which will at some point use X.509

#

But a IoT system should make some assumptions about security, communication shouldnt be trusted to be secure, cloud infrastructure gets hacked, single compromised devices shouldnt effect the whole network, employees and users make mistakes, and all trust should be established using cryptographic means.

charred mountain
#

Oh another good reason not to use websockets for large scale installations @wicked elbow is the scalability, MQTT is a broker protocol and most backends use an AMQP broker with a MQTT interface so all device messages come in as an MQTT message, but then go into AMQP queues so you can have many distributed applications consume the data concurrently using the featureset of AMQP. But for a few clients WS would work just fine, and yes you could techniaclly use a load balancer but theres additional issues with that and WS. (And yes you use a LB with MQTT listeners too)

wicked elbow
#

@charred mountain Ah, thanks. I'm just thinking about my own house 😉 For five years, I've been just using HTTP to my own server for IoT stuff, and it seems WS could give me more flexibility. I generally don't like the commercial offerings, for a variety of reasons.

#

(and it's fun to do my own 🙂 )

charred mountain
#

Ah, well Im confused on what "more flexability" WS would give you, but for things like your house it will work wonderfully.

wicked elbow
#

persistent full-duplex is the main thing that attracts me

charred mountain
#

Well these things are never truly full duplex since TCP is being used. What do you mean by persistent?

sly roost
#

Yah, I think the WS stuff is mostly handy if you expect a browser to be one of the ends.

charred mountain
#

MQTT over UDP can be "full duplex"

#

But even then using most QoS settings you still have that overhead TCP provides

#

In fact, if this is in your own house on a local network, may as well just use TCP or UDP sockets

wicked elbow
#

persistent meaning open connection

sly roost
#

And WS can kinda-sorta-ish act like HTTP so you get the benefits of HTTP and stuff, but, again, if you try to use it against any of the software load balancer type things it might eat up connections too fast.

charred mountain
#

You mean retaining a single TCP connection?

wicked elbow
#

just being bidirectional over a connection that can stay open for some time

#

maybe I'm reading too much into what it can do, haven't really played with it yet

charred mountain
#

That trait is shared by both MQTT and WS, the only real benifit I can come up with is with WS you wont need a broker if you just want to connect directly to an application

wicked elbow
#

Yeah, keep it simple. MQTT is fine I'm sure, I just don't need all that. Or maybe I do, haven't played with that one yet either.

charred mountain
#

Well when you start playing with all of it I would be curious to hear what you experience was

pallid solstice
#

I've been trying Circuitpython, Arduino and the ESF toolchain to no avail so far. Any boilerplate code doesn't seem to work yet. I've tried to use what's in this repo: https://github.com/espressif/esp-aws-iot and I was able to build it with some modifications but it seems the code needs some refactoring to get it to work, which is above my C chops at this point.

hardy sage
#

I have been looking for a IoT specific discord server and have not been able to find one so I made one. If anyone wants to join it I will DM you the invite

dense panther
#

Hi all, I have Pi 4, and I want to play with it in Cybersecurity subject, any ideas?

pine furnace
#

@hardy sage Home Assistant has a huge server

covert mortar
#

hi can anyone tell me how to install opencv on Pi4

hot seal
lucid flame
native terrace
#

hELLO, Im new here, anyone can help me sort out what is hapening to m FONA SIM 808 3G +GPS board??
In terms of Wiring and Li-po battery

white junco
#

Did you get that sorted?

low grotto
white junco
#

I suspected as much, as it looked like there was crossposting going on, but the most recent traffic seemed to be on a different matter.

tired magnet
#

Does anyone know if arduino IoT cloud is compatible with wpa2 enterprise networks?

charred mountain
#

@tired magnet the cloud doesnt really care what kind of network you have as long as your micro can communicate to the internet

urban spruce
#

I think he's asking if the wifi module is wpa2 enterprise security compatible

#

which I'm pretty sure it is

#

because it's marketed for enterprise uses.

charred mountain
#

Ah, then I think a better question would be if the Arduino MKR supports WPA2 enterprise

#

I assume that is the board they are using

urban spruce
#

I'm not familiar with all the wifi capable arduino boards

tired magnet
#

yeah sorry, i know the board can but i wasn't really sure how i'd use that with the iot libraries as the one on the website only uses ssid and password

charred mountain
#

The website itself does not use the ssid and password

#

Arduino doesnt care what your wifi creds are

merry sluice
#

We have extended our campaign. Very few early bird left for our 7020 model. Visit the link and grab one before it ends. https://www.crowdsupply.com/embedinn/iotsdr

Crowd Supply
iotSDR

A versatile dev board with everything you need to design custom IoT protocols & gateways

charred mountain
#

Aw, I wish I had the money to burn 🥺

shell dragon
#

RTK for 300$ plus a bunch of other possibilities

#

wow

#

What's the predicted location precision? Temporal precision? Could it be turned into an accurate PTP server?

#

I'm just asking because I've long thought about building a device that does this for me. Current solutions are, frankly, half-assed and/or proprietary and/or super expensive.

hardy sage
#

Hey guys! What is going on in the IoT world?

lucid flame
#

Lots of cool things!

raven socket
#

Hello, I'm trying to connect my app to Adafruit io using PAHO. It does connect with the server but every time when I try to subscribe, adafruit io shows an error that is "MQTT ERROR: paho1014700107263649 202.5.36.164 SUBSCRIBE to topic /feeds/temperature/ rejected, resource not available or not authorized"...My token is correct as well as the topic. What should I do now ?

north swallow
#

can anyone tell me how to use esp8266?

hot seal
#

@north swallow What are you trying to use it for?

north swallow
#

for controlling motors and led's

#

from a pc or mobile

reef ledge
#

Do you already own a esp8266 board or are you looking to get one? Wha'ts your budget? The classic esp8266 is cheap, but some of the newer boards / packaging make it a lot easier to program / more gipo pins for control. I really like the Adafruit Feather M0 Wifi since it has a bunch of gipo pins, has wifi, and has a batttery charging circuit and plug for a battery.

winter saffron
#

hello everyone new to the discord but looking to grow my knowledge and also share

#

recently built this but having some issues with hosting my own webpage to display the bme280 sensor data

#

currently it utilizes snprintf and outputs json

#

however the driver i'm using for the bme280 is not parsing correctly

#

I also want to ditch this method and go with a more css polished look

wicked elbow
#

IFTTT just made itself a lot less useful to hobbyists. Only 3 applets in the free tier.

sly flume
#

anybody work with the twitch api before? I want to make something that reacts to new/returning subs.

grave crystal
#

Honestly, I had a terrible time with the original ESP8266, thank God for Adafruit’s more accessible and usable options

charred mountain
#

@grave crystal yeah its not exactly a favorite around here, popular with the newbies but it causes a lot of issues

grave crystal
#

IFTTT just made itself a lot less useful to hobbyists. Only 3 applets in the free tier.
@wicked elbow wow that very much sucks, Guess I'm done with them.

calm token
#

Hey Guys!
I'm working on this programmable DIY home automation/environmental sensor. It has a battery life of up to 5 years and can measure 8 different data points. Its compatible with Arduino, ESP-IDF and home assistant. 😎 🤓

Check out the sensor here and subscribe for updates!! -> https://kubosensor.editorx.io/kubo

📎 kubo-sensor.png
Kubo
Subscribe | Kubo
trail pagoda
#

That's pretty neat. Kudos for getting that kind of battery life with a WiFi device! 🔋

severe socket
#

Sneak Peek of a new IoT project I've been workin' on

oblique hawk
#

I'm new to adafruitio Where do i find my your_big_huge_super_long_aio_key

wicked elbow
#

log in to Adafruit IO and click the yellow link in the upper right

📎 IO.png
manic carbon
wispy topaz
#

Good morning all - have a Seeed Grove sensor board that was initially sold as a board to connect to IFTTT but they have since discontinued their connector so I’m thinking I need to develop something (a python script?) to send data to Adafruit IO

#

Needing help on coding and/or if there is a plug and play option like IFTTT that would allow me to put in the URLs for each sensor and then map them to Adafruit

hard marlin
severe socket
#

@hard marlin 😍

#

Pretty limited GPIO...

hard marlin
#

Fair, but also, so tiny.

#

I doesn't need much to be a cpy qtpy or similar.

severe socket
#

Yeah, I want one in a devboard format with an external antenna

#

and charging circuitry

hard marlin
#

Solar if at all possible ❤️

#

I've just got a tiny CN generic "mini" solar charger that is <$5 in CR. Need to test if they are any good.

severe socket
#

@hard marlin ooh

hard marlin
#

(CR-ican provider, so it probably better to get them elsewhere)

#

Tonight I'll solder a bit, and see if I can get a cheap 3.5w solar panel to handle a ttgo esp32 with meshtastic with a 1200mah batt. ( < $100 in CR)

feral kettle
#

My nephew aged 11 is wishing for RGB LED strips for Christmas and I wonder if I can give him something like that. Naturally I am thinking a dotstar strip controlled from a microbit - which he has already. Then I learned that he has a Google Nest Mini. So the natural thought: Would it be possible to connect a Nest with a Microbit through Bluetooth?

severe socket
#

@feral kettle It may be possible through a 3rd party service like IFTTT.com

#

I'm not certain though, haven't seen any guides about this before

feral kettle
#

what if I could make my microbit connect to the nest as a bluetooth speaker, and use the play/pause etc functionality to control the light

feral kettle
#

That went out the door as the NRF51822 on the microbit is BLE only...

charred mountain
#

@feral kettle would a $10 pi zero work?

feral kettle
#

@charred mountain My nephew already has a microbit. and it has just been lying around. My idea is to present another application for this board. Just to use what he already knows - and with his newly aqcuired Google Nest, it could be fun to tie those together. the latter not being possible though.

#

I think I will move forward with the concept of using a bluetooth serial terminal app on a smartphone to connect with the microbit to control the lights.

charred mountain
#

@feral kettle it should be possible if you add a Pi, and you could do other stuff with it like host a grafana stack for nice graphs of sensor outputs

#

Just a thought

feral kettle
#

I know the possibilities of the Pi, but this is for my newphew to control when I am not around. He knows a little about the pi. This will be a nice opportunity for him to learn a little more

#

sorry. he know about the microbit

misty badger
#

SOS
Any ubuntu core on raspberry Pi tutorials

solemn bobcat
#

@misty badger as it is a linux distro you can use linux commands

misty badger
vast rover
#

I just wanted to share my go to iot setup. I highly suggest using Johnny-Five with a Raspberry Pi Zero W and configure it with Auto Hotspot. With Johnny-Five you can leverage NodeJS + Express + pusher and control your Raspberry Pi over a web app. Your Raspberry Pi will automatically create a hotspot if you don’t connect it to a network which allows you to access that web app even without a network. The reason why I prefer NodeJS for iot instead of Python is because of the amount of NPM packages and APIs you can leverage.

misty badger
broken pebble
#

Does anybody know whether the ATECC608 can generate a six digit 2FA number? (like Google Authenticator)

charred mountain
#

@broken pebble since it has no concept of time, Im not sure how it would

#

You might be able to use the crypto functions to make a otp auth implementation im not sure, but the chip cannot just spit that out for you

#

There are much better ways to authenticate a device

white junco
#

I wonder how the U2F Zero works

broken pebble
#

Yeah, I was just reacting to a project where the author had a warning about putting a secrets.h file on a Circuit Python drive which somebody could attach a USB cable to.

charred mountain
#

@broken pebble that is what the IC is for, to keep the secrets on the chip, and only perform crypto operations on it so you dont leak secrets

#

Try using one of the asymmetric authentication operations on it for security

broken pebble
#

Yeah, I'll have to see if there's example code that seems pertinent to the service(s) I want to connect to. Thanks for your help.

charred mountain
#

@broken pebble you asked about the OTP auth method, that means you were looking at some user auth not a device authentication standard, make sure to read through the dev docs of your service to figure out how to connect devices

broken pebble
#

@charred mountain Yeah, I'm probably getting two projects mixed up or wanted the device to impersonate me for some management function. I'll come back when I have a better idea what I want to know. Thanks again.

solemn bobcat
solemn bobcat
misty badger
solemn bobcat
#

🙂

tired magnet
#

Hey, does anyone here have experience with the Arduino 1400 GSM? I was wondering whether you would cause damage to it by turning it on with the antenna unplugged

hybrid zealot
#

Transmitting without an antenna connected can possibly cause damage as all of the power is reflected back.
An antenna provides a load, absorbing energy travelling down the line. If that energy is reflected, it has the potential to double the voltage seen at the transmitter, which could blue smoke it.
If you were not transmitting at the time, it would be fine with it unplugged.
tl;dr (non-committal hand waving gesture)

tired magnet
white junco
#

Some units detect high SWR and protect themselves by lowering power if there's a mismatch (such as no antenna). Other units do not have the protection circuitry and will be damaged.

tired magnet
#

Ah got it:) Wonder if there's a way to test how good the connection is. There doesn't seem to be much documentation apart from ublox's own datasheets but i'd be interested in the mkrgsm library

inner iris
#

Temporarily replace the antenna with a 50 ohm resistor.

sly roost
#

Wow, it really is something you can find out on your ohm.

tired magnet
inner iris
#

To reduce SWR. The power reflected from an open antenna port could destroy the RF power amplifier. To test, a 50ohm resistor will mimic the antenna and not radiate, at least not much.

tired magnet
#

Ah man I think I understand but I'm very new to this. I initially thought to ask as I know that rc drone video transmitters will be damaged if you have high output power but forget to plug in the antenna... that's about all I know

#

Now I'd just like to see if I can figure this gsm stuff out

#

I assume a gsm module isn't sending stuff constantly in the same way a vtx is? I'm not sure. I figured it might just send small bursts which isn't enough to cause heat damage to the module

white junco
#

The transmitter amplifier is fairly small, even a short burst could damage it with sufficient SWR

tired magnet
#

Ah okay:/ Well hopefully it won't cause issues in the future, i assume the only thing it could have been doing was pinging a tower but i don't really understand the module/library

#

I'd be interested in seeing whether i could use the board to make a voice call

white junco
#

I've used some GSM boards to make voice calls, but not that particular one.

tired magnet
#

Oh awesome, does it require a lot of processing power and memory? Did you use libraries or did you write from scratch? The mkr boards seem to be pretty powerful, i just assume the DAC/ADC would be pretty busy

white junco
#

I started with the AdaFruit libraries, but hacked them up to fit in smaller memory and add a few functions. Voice is just a pass-through, so the CPU doesn't have to do much other than originate the call.

tired magnet
#

I'll have to check it out, which adafruit board did you use?

white junco
#

I've been using the FONA 808

tired magnet
#

Awesome! Looks like i should've got one of those instead

white junco
#

They're an older standard, I don't think a lot of carriers support them any more.

forest cypress
#

Anyone know of a good free JSON REST word of the day API?

golden notch
urban spruce
#

They might end up selling one with the ESP32-S3 but there hasn’t been any formal announcement

ancient light
#

Has anyone worked with the PMSA003I Air quality (PM2.5) sensor from Adafruit? I'm having issues with it wreaking havoc across the entire I2C bus. It works fine for me on its own but as soon as I wire up other sensors I get all kinds of random combinations of "input/output error", "unsupported operation", "SCL/SDA needs pullup" errors

hot seal
#

@golden notch there is some BLE support available for the metro_m4_airlift -- you have update the firmware.

golden notch
#

@hot seal I'm looking for a board that comes in the Uno form factor like the Adafruit Metro ESP32-S2.

I want to use it(ESP32) with my Arduino Grove Kit

hot seal
#

OK -- Probably not what you want, but the metro_m4_airlift is in the Uno form factor and uses an ESP32 as a wifi co-processor -- the latest firmware also has BLE support.

sharp brook
#

Hi. Anyone know how to properly implement uart_server.read() in circuitpython? I.e., parameters, how to format/print the output, etc.? Also, uart_server is an instance of UARTService().

royal gorge
#

you can readline() to get anything until a newline occur, or read(n) with n being the number of bytes you want to read

#

you have also uart_server.in_waiting that tell you how much bytes are in the receive buffer

#

@sharp brook (I didn't see question was 2 days ago)

sharp brook
nocturne jackal
#

Hi, I'm testing MQTT with MagTag, could anyone help with this error: AttributeError: 'module' object has no attribute 'ESP_CS'

📎 2021-01-19_1-15-43.jpg
undone plaza
#

@nocturne jackal its probably telling you that the board prop ESP_CS is invalid (you seem to be trying to access board.ESP_CS). Try using the pin directly. if you put this, you should see all the board info in your monitor

print(dir(board))
#

i.e. you probs want something like esp32_cs = DigitalInOut(board.D10) << or whatever pin you are using

wicked elbow
#

I think it got resolved elsewhere... (trying to use ESP32SPI library on ESP32-S2 MagTag, but also MQTT support is in development for ESP32-S2)

undone plaza
#

lol, so many multi-posts im losing track 😬

young sun
#

got a question about the interaction between the SMD51 and the ESP32 on the Matrix Portal.

#

I know that the SAMD51 handles the matrix board and the ESP32 the IoT side.

#

Lets say I want to have a multifunctional RGB matrix display and I need to make complex data structures built with multiple instance of objects and I feed those instance of data from an API, which side is handling that complex structure of data ?

dim agate
#

CircuitPython is running on the SMD. The esp32 is there just for networking.

#

The CP on the SMD access the network available via the ESP32 over SPI.

#

Have a look at the WiFi library for the Matrix Portal

#

Specifically check out the imports ...

#

adafruit_esp32spi is how the network is accessed.

#

I hope that helps @young sun

young sun
#

@dim agate thank you so much !!!!!

dim agate
#

Happy to help!

young sun
#

Hi, it's me again !!!. would there be an easy way to flash the ESP32 to load my own code ?

wicked elbow
#

I think it's theoretically possible, but it's challenging in a device like a Matrix Portal where the ESP32 is integrated. It would likely involve using "passthrough" code on the SAMD51 https://learn.adafruit.com/upgrading-esp32-firmware/upgrade-an-airlift-all-in-one-board, and then developing a custom firmware image for the ESP32, and writing new code on both sides to communicate between the processors. I'm not sure if anyone has done it before.

young sun
#

Thank you so much bud !!!

near crater
#

would this be the correct room to ask a pyportal question?

#

or is there a more appropriate one?

lilac crater
orchid folio
#

yo im looking to build some bluetooth earbuds from scratch, mainly because I want to program it to interact in a specific way with a raspberry pi

#

any ideas on where to get started?

#

Oh scratch as in premade chips no circuit design or PCB stuff (unless its necessary)

trail pagoda
# orchid folio any ideas on where to get started?

Identifying the chipset you want to use would probably be the best first step. The easiest would probably be a Bluetooth "audio SoC", as they're built for this sort of application, though it depends on how much you want to customize the behavior.

#

It looks like Microchip, Cypress, and Qualcomm (who acquired the Cambridge Silicon Radio portfolio) have some relevant product lines.

trail light
#

Does anybody know what happened to the sainsmart's 16 channel 5V relay modules

mental fable
#

is it possible to do hardware serial between an esp 32 and a 8266?

trail pagoda
#

Almost certainly, yes. They both have hardware UARTs, which shouldn't have any trouble talking to each other.

shy rock
#

hey guys - I hope this is the right place. I would like to track hip rotations (think hula hoop), can anyone tell me what kind of sensor I would need or if it's even possible? I have done some reading but I still can't figure out if it's even possible

trail pagoda
#

Sure, that seems quite possible with an accelerometer or similar inertial motion sensor.

shy rock
#

how would that work with an accelerometer?

trail pagoda
# shy rock how would that work with an accelerometer?

It would basically be a like a sideways pedometer, where you'd be able to count the "steps" of the hips moving from side to side. The data signal would more or less look like a sine curve, so you would count the peaks and valleys. Some accelerometer chips have that sort of analysis built in specifically for step counting, or you could do it yourself in software.

ornate anchor
#

Heyo. How well could I use UWB for indoor location tracking? In the XYZ coordinates of the building. So different floors as well. People walking on it,

#

Some specs

#

Honestly, I'm mostly a designer and UX researcher for IoT, so I don't really know from just reading the specs

#

This still a wireframe

#

But the eventual goal is to see different people per floor

dim agate
#

@ornate anchor location is one use case for UWB (and BLE, RFID, and several other technologies) UWB uses Time Difference of Arrival. So basically pings happen and the time it takes for those pings to arrive is used to calculate a position based on known positions (your fixed devices). There are a lot of UWB based location articles if you search online, and your UWB hardware vendor should have documentation how to implement it if they support it. I hope that helps.

ornate anchor
#

I guess this is some of the architecture that is currently used

#

I guess the UWB fits in the device layer?

dim agate
#

Yep.

ornate anchor
#

Thanks, I'll look more into it!

deep adder
#

Anybody worked with any long-range low power transmission tech?

#

I'd like to find something that can transmit around a mile or so. Essentially I'd like to make something akin to cellular trail cameras without needing a cell network - low bandwidth is fine as even if it takes an hour to transmit a photo that'd be ok

#

LoRa looks promising but not finding a ton of info on it

trail pagoda
#

Yeah, LoRa is kind of the go-to option for long range free-spectrum operation. Getting a mile out of it is possible, give or take the data rate you pick, how much of a line of sight you have, antenna choice, etc. There ought to be a decent amount of info out there. Adafruit has several boards using the RFM95 transceiver module, for instance.

frail orchid
#

I am working on project in that I am using 4 voltage sensor , 4 temperature sensor and 1 current sensor.
So total 9 analog sensor.

How I can get all 9 analog sensor value shown on website or web server.
If there is code available for this then share to me.

leaden fulcrum
#

If you want to go a more home-brew route, you could also give Anvil.works a try. You'll have to configure your own endpoints, and they don't support MQTT.

#

(You could get MQTT working on Anvil if you're willing to run a process on a PC somewhere. It would be a bit of a slog, though.)

frail orchid
#

Which controller should I use?

leaden fulcrum
#

That's a big question. What are your priorities?

frail orchid
#

I want to read 9 analog sensor value so controller should have more analog pin and show sensor value on website.

leaden fulcrum
#

Sure, that's the scope of the project, but if you're asking for microcontroller selection advice, you'll have to be more specific. Are you prioritizing price, processor speed, size, CircuitPython support, stock availability?

frail orchid
#

Esp8266 , Esp32 , Arduino mega

leaden fulcrum
#

Well, for Adafruit products, you have a wide selection of Feathers that'll do the trick. Most of them are out of stock. UnexpectedMaker's FeatherS2 is the most available thing right now, pretty much in any store I check regularly. https://www.adafruit.com/product/4769

FeatherS2 - ESP32-S2 Feather Development Board

Introducing the FeatherS2 - The full-featured ESP32-S2 based development board in a Feather format from Unexpected Maker. The FeatherS2 is a power house, fully souped up with 16 MB of Flash ...

#

But to get a 32 or 8266, I don't think there's anything you can buy at the moment from Adafruit.

frail orchid
#

How many Analog pin are there in it?

leaden fulcrum
#

21 GPIO pins.

#

I don't know how many are true analog, though.

frail orchid
#

It works on python language??

leaden fulcrum
frail orchid
#

I don't know so it is a problem

leaden fulcrum
#

Just be aware that computing is done by the S2, it's not a coprocessor.

#

So while you're sending data to the cloud, you won't be reading from your sensors.

#

It's only a problem if you require true analog from your board.

#

Depending on sample requirements, you can do some tricks with capacitors, and maybe PWM?

frail orchid
#

Is there any other controller board which supports 9 to 10 analog pin and Arduino language with WiFi?

leaden fulcrum
#

I'm not an Arduino guy, so I'm not sure. Why don't you take a look at Adafruit's Arduino category, find something that seems like it fits, and ask specific questions about it in the #help-with-projects or #help-with-arduino channels?

#

Keep in mind that you can pick a microcontroller without wifi and add an ESP32 breakout board.

frail orchid
#

Yes I trying that... But programing become more complex

leaden fulcrum
#

That's a function of talking to the internet. Switching to an integrated board won't really help. If you're using libraries "properly," you'll just specify some I2C details in the setup code, then treat everything else pretty much the same. Maybe you're working with a library I'm not familiar with, and this advice doesn't hold true.

#

If you already have a board and a coprocessor, I'd definitely recommend hitting up #help-with-arduino to make sure you're doing things the easiest way.

frail orchid
#

Thanks 👍

leaden fulcrum
marsh rivet
#

hello everyone!

#

has anyone ever had any experience setting up a Particle Argon integrated with a webhook for discord? I am hoping for some advice, Ive gotten somewhere but it isn't where I want. can provide source code etc upon request/discussion! My issue is I have gotten it to send messages to my selected channel, but only a pre-scripted message, not any variables or information. I would like to be able to display information like air quality and temp in a discord message, maybe embed when it is functional.

dim agate
# marsh rivet hello everyone!

Hey there, I don't want to shoo you away, but you might find more Particle Argon folks in the Particle community. https://community.particle.io/c/hardware/4

As well as their samples for their boards.
https://docs.particle.io/tutorials/hardware-projects/hardware-examples/argon/#read-your-photo-sensor-function-and-variable

Particle
Hardware

Questions and discussions about Particle hardware, including development kits, SoMs, and accessories.

Hardware Examples - Argon | Tutorials
marsh rivet
ivory gale
#

hi folks, sorry if this is the wrong place to ask - just joining this server. Where would I find a low cost board that supports WiFi, Lipo battery, and circuit python? I’m trying to drive about 120 neopixels using api data, and wanted to get some low cost boards to do this. I’m mainly concerned about having enough memory to support my use case while being able to acquire these cheaply enough to make my final product affordable. Thanks for any pointers!

crisp stump
ivory gale
#

thanks! yes, I was looking at the S2 and it looks very well made, but that’s double the budget I have for each board. I’m aiming to find something $10 or less (not sure how realistic this is).

crisp stump
#

Yeah wifi ups the board prices a bit it seems

dim agate
sour nymph
#

@ivory gale If you don't need circuitpython an esp8266 might be able to do what you need

supple wave
#

Can esp32 work with amazon alexa without a dirty hack like it being simulated as a hue device or something?

charred mountain
# supple wave Can esp32 work with amazon alexa without a dirty hack like it being simulated as...

Lmao, a quick good search and that seems to be pretty close to what this guy did, it simulates a Belkin Wemo Device https://randomnerdtutorials.com/alexa-echo-with-esp32-and-esp8266/

Random Nerd Tutorials
Alexa (Echo) with ESP32 and ESP8266 | Random Nerd Tutorials

In this project, you're going to learn how to control the ESP8266 or the ESP32 with voice commands using Alexa (Amazon Echo Dot). As an example, we'll control two 12V lamps connected to a relay module. We'll also add two 433 MHz RF wall panel switches to physically control the lamps.

supple wave
#

@charred mountain thanks but this is literally the same result with a different method

#

I'm looking for something that allows me to do a little more than a single function like 'on and off'

#

simulation of other devices is kind of a turn off

#

again thanks for the help though

charred mountain
#

Well you said simulating a hue device, which I thought was kinda similar, there is a legitimate way to do this using Alexa skills through AWS if you really want to do custom functions

#

If I remember right, this can work across the local network like the hue with Alexa

supple wave
#

i know there is this

#

but it's geared toward a pipeline meant for product development

#

aws is not cheap

charred mountain
#

You also get free VMs and other stuff for a year

#

Or credit to do so, been a while since I had my trial

#

Alexa is a closed ecosystem, which I understand is frustrating

supple wave
#

i used to do aws things for work, i know it gets expensive fast after that first year

#

lol

charred mountain
#

You can host the expensive stuff off AWS, just the Alexa skill and some silly lambada or however you spell it function shouldnt be too bad. If you really decide to go full AWS everything yeah it gets expensive. I wouldnt even use IoT core, I thought there was the ability in a Alexa skill to make a mDNS lookup and HTTP request on the local network

#

If you can, then just run a HTTP server on the ESP32 and mDNS responder

supple wave
iron mulch
#

Anyone on here with I2C ADC experience?

shadow onyx
#

Hi, I am new and I hope I am posting this in the right forum. I want to create several RGB Leds controlled via voice commands and interconnected via bluetooth to one Arduino controller.. is that possible and with which modules? I.e, 1 RGB LED + Battery + Bluetooth (multiple locations) all communicating with one controller via bluetooth + voice commands.

urban spruce
#

Though this channel isn’t a bad place to start for discussions around the IoT portion

empty thicket
#

So I just ran across what I think is the coolest thing for some of my projects, and I just need to share it with someone who might appreciate it. These guys make the NoteCard a $49 cellular board that comes complete with 10years/500mb included: https://blues.io/

Blues Wireless · Fastest path to build cellular IoT products

Blues Wireless makes cellular IoT simple with the Notecard and Notehub.

lilac crater
#

That's nice!

#

Just a bit pricier, but dang! Such a cool find @empty thicket, thanks for sharing!

#

So I see 2 names related to this company that tells this is a good thing...

  1. Brandon Satrom, who's been around the IoT space for some time, and formerly at Particle if memory serves
  2. Ray Ozzie, former Chief Software Architect at Microsoft, also formed Groove Networks, started Lotus Notes (they can't all be winners!), and helped found Safecast.
lucid hinge
#

I am trying to use this library for MQTT on a raspberry pi. https://github.com/LiamBindle/MQTT-C I figured I would try just subscribing to my welcome-feed as a starting point however I keep getting "Name or service not known" which seems to be a specific address problem. I feel like I tracked it down to getaddrinfo. Granted I am not 100% sure how my url is supposed to look with the api and username

GitHub
LiamBindle/MQTT-C

A portable MQTT C client for embedded systems and PCs alike. - LiamBindle/MQTT-C

#

on this site it seems to suggest that the connection url is mqtts://[Username]:[API-Key]@io.adafruit.com

https://learn.adafruit.com/adafruit-io/mqtt-api

however it doesn't seem to want to work while using that. I tried without the mqtts:// as well and that didn't work

Adafruit Learning System
Adafruit IO

The Internet of Things for Everyone

#

also I would like to mention that I did build and test the MQTT-C example, and was able to get two terminals to talk with each other through MQTT test.mosquitto.org

#

However connecting to the adafruit IO service seems to be a bit harder at the moment.

charred mountain
lucid hinge
#

Right which just makes me think I have the incorrect format for the url or something along those lines.

#

What is the correct format for the URL with the username and api key?

charred mountain
tidal path
#

Setting up some iot projects that include gps and I want to mount them in project boxes. I haven't really dealt with gps since the days when the Garmins first came out and I remember that it was crucial to have the device or at least its antenna having a clear site up to the sky. Is this still a requirement? The small antenna leads that come with these gps modules lead me to believe it's not a hard requirement anymore. Anyone have some opinions on this?

ornate sage
#

Does anyone know what happened to DK IoT Studio from Digi-Key? Does that still exist?

#

Any link I can find in tutorials or in DK's own content leads to 404 errors

dim agate
plucky helm
dim agate
#

I only have used one antenna so my sample size is one. Its the same as this one at 5 meters.
https://www.adafruit.com/product/960

You can check on DigiKey or Mouser though to see if other lengths are common.
I've never had to determine if the GPS could handle or not a longer cable.

GPS Antenna - External Active Antenna - 3-5V 28dB 5 Meter SMA

Give your Ultimate GPS V3 a boost with this external active antenna. This GPS antenna draws about 10mA and will give you an additional 28 dB of gain. It's got a 5 meter long cable so it ...

plucky helm
#

Ah, thanks!

severe socket
#

They suggested moving to Atmosphere IoT

#

https://forum.digikey.com/t/dk-iot-studio-has-migrated/8463

Engineering and Component Solution Forum - TechForum │ Digi-Key
DK IoT Studio has migrated

DK IoT Studio has now migrated to Atmosphere IoT Studio. The functionality will be the same, the main difference is the look of the branding. All of the boards and sensors that were available in DK IoT Studio will still be available in the Atmosphere version. Atmosphere has a vast amount of resources available for assistance, which can be fou...

ornate sage
near falcon
#

Is there a version of the HUZZAH ESP8266 that has USB C ? (Or a device of similar function, wifi & built in battery management, with USB C?)

low fable
near falcon
wicked elbow
#

@near falcon The FeatherS2 is an ESP32-S2, a newer variant of the ESP32. Single-core, Wi-Fi-only (no BLE), lots of RAM and flash, more GPIO, Arduino and CircuitPython.

near falcon
wicked elbow
#

I haven't done Arduino on it so I can't speak to that, but it's a great board for CircuitPython

near falcon
wicked elbow
#

https://feathers2.io this says the Arduino support is still early... presumably at some point it will be released and it will be just another board to choose from in the released Arduino IDE

low fable
#

Unexpected Maker has a discord if you have questions on the Arduino support, I think he can tall you more

near falcon
wicked elbow
#

I'm sure there are other boards that fit the Arduino+WiFi+battery requirements, including the Feather ESP32 (a little easier now than ESP8266 in Arduino, I think, due to TLS support). I think Arduino has a couple.

low fable
#

they were asking about USB-C boards

#

the TTGO has a battery connector I think, but I don't know what the specs are for it

near falcon
low fable
#

(there's more than one, there's a few ESP32 models and at least one S2 with a screen)

wicked elbow
#

I just ordered a couple of esp32-s2 TTGO w/TFT ...I'll see them in a month

low fable
wicked elbow
#

@low fable while you're here... you have one of the S2 ones, right? is the TF card compatible with micro SD?

low fable
#

the battery connector on the S2 is smaller than the one used by Adafruit

#

I haven't tried that

wicked elbow
#

so polarity and voltage levels are an exercise for the reader too

low fable
#

Battery Input 3.7-4.2V
JST Connector 2Pin 1.25mm

#

I don't see the polarity on the pinout 🤔

wicked elbow
#

I'm looking forward to the screen. I've been using Cucumber for development since it has the dual USB connectors and all pins exposed

#

like Saola++

low fable
#

it's nice to have a on-board screen for wifi things

trail pagoda
#

I'd be thinking something like SLIP.

long kite
#

Does anyone have a recommendation on the best Feather with Wifi? I was looking at the FeatherS2 - ESP32-S2, but didn't know if it would be better to do a Feather M4 (or RP2040) and then add an Airlift Wing.

long kite
winged gate
eternal cloud
#

are there any similar alternatives to nextion tfts?

lyric dune
#

I need to log in to my account and have my 2fa disabled. I need help asap. Thanks

hot seal
#

@lyric dune -- responded in #general-chat Please do not crosspost.

ionic kayak
#

has anyone applied blockchain security to IoT devices?

regal pelican
#

Does anyone have any starter pack recommendations for learning about IoT and for building beginner projects?

sudden narwhal
#

@ionic kayak Elaborate...

sudden narwhal
#

@ionic kayak I'll locate a direct link of something helpful and share.

tacit ridge
#

Hi Does anybody have a good suggestion for a n affordable CAT4 LTE module. I see that the SIM7600G-H are the only ones that are semi-affordable. I’m wondering if there are other alternatives out there. Also, one without GPS module would be nice. Thanks.

ionic kayak
#

@sudden narwhal sorry for not answering soon, i was very busy yesterday.
I thinking abou if there is useful info or resources to apply IoT device using a raspberry or arduino through a Python Blockchain code, for security purposes since ive read iot lacks security

#

I've been investigating but haven't found anything solid besides theoretical studies

pallid anchor
#

Hey there, is anyone familiar with the Particle Argon?

hot seal
#

What information regarding the Argon are you looking for? I have used them in the past.

pallid anchor
#

So im trying to send telemetry data from a TMP36 with the argon to microsoft Azure

#

I flashed the script which I thought would work, but instead crashed the Argon's firmware

#

I factory reset the Argon like 20 times and nothing helped. Thats before I realized it was a firmware error though so I reset the firmware

#

you wouldnt have any experience with using the Argon with Azure would you?

#

besides that I fixed what I was going to ask for help with

hot seal
#

No, Sorry -- I do not use Azure.

pallid anchor
#

ill just do more googling lol

hot seal
#

Good luck !

pallid anchor
#

thanks

midnight spear
#

My post from help-with-arduino: Still not sure if this is the place to ask this but there is another BIG wrinkle to what I'm trying to do (WRT connecting an ESP32 to the eInk Breakout Friend). I'm hacking a solution. I'm trying to drive a Pimoroni eInk What (4.2" RBW) by connecting the EPD ribbon cable to the eInk BreakoutFriend. I'm not sure what the manufacturer is for the EPD so, it's basically a crap shoot. Thoughts? Should I move this question?

hot seal
dim agate
pallid anchor
#

no idea what that is lol

pallid anchor
#

@hot sealHey there. hopefully you dont mind me @ing you. Have you used anything like a particle sensor in the past when you worked with particle devices?

#

I have a PMS5003 sensor im trying to get connected to my particle, and then publish info from it onto their cloud

#

Ive never done anything like this and the example code they gave is all serial stuff which im not sure helps me

dim agate
pallid anchor
#

oh I mean, I fixed my issue

#

but thanks

#

I have looked on there

hot seal
#

@pallid anchor sorry, I have not used the PMS5003.

blissful perch
#

What are people's thoughts on the ODroid? How well does it interface with hardware and GPIO stuff?

I have one lying around that (Odroid XU-4) I'm considering using for a little project that involves monitoring climate in my home. It's possible I might avoid buying a specific sensor specced for SBCs, and might just hack some off-the-shelf electronic sensors from the hardware store, and stick it into the GPIO pins (I like a challenge). Regardless, how is is the community support for the ODroid, and general stability? am I better off just going with a Raspberry Pi?

(Please @ me if you plan on replying to this)

plucky helm
# blissful perch What are people's thoughts on the ODroid? How well does it interface with hardwa...

@blissful perch, I've not tried the ODroid specifically, but I have quite a few of the various fruit and vegetable SBCs, and while they have GPIOs it's important to note that "GPIO" is not a Pi-specific term, that unless it's *explicitly stated *as being a Pi-compatible GPIO bus, and that's been independenty confirmed (several of the boards I have are sold by dishonest players in this regard), you shouldn't assume the GPIO in the ODroid actually works for your usage. It may, it may not. E.g., on one of my boards the I2C pins are in the right places for both of the two I2C buses on the Pi, but they've swapped bus #0 for bus #1 (pins 3 and 5 are swapped for pins 27 and 28). Since I'm using a number of software libaries that don't allow for such a swap that SBC won't work for my I2C peripherals. Some of these things can be fixed in software, some not. And this is just I2C; there are a whole lot of potential disqualifiers for compatibility. First thing is check the GPIO pin layout, then if that's still "Pi compatible" you'll need to read the documentation for the ODroid and compare it with the Pi.

blissful perch
#

@plucky helm Thanks for that!

blissful perch
blissful perch
fervent plover
#

wow nice, I just got that sensor to use with my esphome!

#

your guide will help me 🙏

desert depot
#

On a similar note, I got the stemma soil sensor to kinda-work with i2c-tools on the raspberry pi as well.

Have you got much useful results from the sensor? Maybe my soil just hasn't dried out yet.

sudden narwhal
#

Can someone point me in the right direction, looking for a sensor that would be able to monitor Oil, to go further Oil level in a Pipe. I've come across water measuring via sensor etc but not other fluid...and does the sensor that measures fluid have to be specific to a particular fluid or once it measures one fluid it can measure any liquid?

trail pagoda
# sudden narwhal Can someone point me in the right direction, looking for a sensor that would be ...

It probably depends on how the sensor works. For measuring fluid levels, there are several options that come to mind: (1) ultrasonic distance measurement of the top of the fluid level, measured from above, (2) submerged pressure sensor to measure the weight of the fluid above it, (3) linear capacitive sensor along the outside of the pipe to determine where the level line is, assuming it's non-metallic.

sudden narwhal
#

Thank you @trail pagoda That's very helpful and informative.

inner iris
#

Ultrasonic sensor at the bottom aimed up will also work. Further more, that will also work in the ocean allowing an FFT to calculate wave motion.

trail pagoda
#

Good point, thanks!

inner iris
#

Fairly easy to modify a fish finder.

sudden narwhal
#

Thanks @inner iris ✨

rancid sapphire
hardy shadow
#

Hey guys i need help connecting the Arduino Nano RP2040 Connect to AWS via MQTT - can someone help?
The issue is that WiFININA connects just fine, but as soon as I want to connect to AWS IoT via MQTT it doesn't connect

wise shadow
#

You know what I'd like? A WipperSnapper beta invite!

desert depot
#

I think people often ask for that in the adafruit-io channel. Just a heads up because I'm not sure where it has to be posted to be seen by the people who can get you the invite

#

(maybe they look here)

hot seal
severe socket
sage edge
blissful perch
#

hello, is there anyone available to chat about some IoT stuff?

#

ok so what i basically want to do is to be able to control the arduino I/Os or NodeMCU's GPIOs with the help of the TUYA smart life app, i have installed the off the shelf tuya smart switches and smart plugs into my house and now i'm planning to build myself a custom sliding gate opener and i want this gate opener to be able to controlled by the TUYA app so i don't have to have a separate app just for the gate opener
so is there anybody know how can i do this?

regal torrent
gray fiber
kind epoch
#

This might sound dumb but How do I clear out data from a feed in adafruit IO?

#

I want to keep the feed but I want the data to expire

#

surprisingly difficult to google

kind epoch
#

I guess I can get a list of all data and loop over it... ooofff aight I guess I have a plan

fair pike
#

hey guys, does the famous webserver

// Web server running on port 80
WebServer server(80);

works as interrupts or as a task on arduino?
Im trying to organize all my tasks on FreeRTOS

#

?

wheat imp
#

Hi guys are there any open projects which provide us free real time data from the sensors? like say solar panel, air quality etc. I want some data to start on a research paper

zealous prism
slim vault
#

Question about a very specific iot project: does anybody (like @waxen niche perhaps) know how to fix the requests module errors that pop up in the Multi-Sensor IoT Environmental Sensor Box With CircuitPython project? I think the lib files were updated/changed since the project was first published. Here's the error:
Traceback (most recent call last):
File "code.py", line 33, in <module>
File "aio.py", line 63, in init
AttributeError: 'module' object has no attribute 'set_interface'

wicked elbow
#

@slim vault What hardware and CircuitPython version are you using? Libraries are all up to date?

slim vault
#

Adafruit feather M4 express attached to an Airlift ESP32 running 7.x. Libraries are up to date. The python code that seems to be having trouble is importing adafruit_requests and calling set_interface. But the adafruit_requests file I located doesn't have set_interface.

#

Scratch that... its trying "import adafruit_esp32spi.adafruit_esp32spi_requests as requests" but adafruit_esp32spi_requests either doesn't have "set_interface" or it doesn't have "get" which the program also needs. Can't remember which one it has and which it doesn't.

slim vault
#

Sorry, messed up the error again. The error is "incompatible.mpy file." I think it is outdated but I can't find a clean replacement.

wicked elbow
#

the ‘incompatible’ exception i think is often either using 6.x libraries with 7.x, or vice versa, or corruption.

#

Double check your circuitpython version, and you could even delete all your libraries and reinstall them from scratch with versions to match your circuitpython version

#

if it’s corruption, the best thing to do is erase your flash and reinstall everything from scratch, I’ll post more detail when I’m back at my computer later unless somebody gets to it first

slim vault
#

Thanks, @wicked elbow I'll look into it. I might just Frankenstein some other iot sensor project codes together with whatever requests .mpy is standard for 7.x

wicked elbow
#

the ‘set_interface’ exception could well be something changed in one of the libraries and the guide needs a tweak

#

But the first step is to make sure your device is good, and you have a circuitpython and libraries that match in version

slim vault
#

I believe you are right. I just started using feathers and iot, so I'm not sure, but it looks like something substantial changed with requests and/or sockets since the project was published in 2019 (https://learn.adafruit.com/remote-iot-environmental-sensor/overview). I was hoping their was one library alternative that included the same methods that the original library was using but I haven't found one. I think I'm just going to have to tweak a little here and there. It'll be a good excuse for me to dig into microcontrollers and iot, though.

wicked elbow
wicked elbow
waxen niche
#

I've never bothered erasing flash in this situation, but I make a habit of deleting everything in the lib directory, emptying trash, and copying new file into lib whenever I grab a new version of the bundle. I've automated the process (and more): https://github.com/dastels/circuitpython_deploy

GitHub
GitHub - dastels/circuitpython_deploy: Deployment script for Circui...

Deployment script for CircuitPython projects. Contribute to dastels/circuitpython_deploy development by creating an account on GitHub.

low fable
waxen niche
simple narwhal
waxen niche
dull thicket
#

How would a person with impaired vision connect the esp32 device to the wifi network?

meager elm
#

That's a fairly broad question. Are you asking for a solution for a consumer or a developer?

#

From a developer's perspective, if they can hardcode the network credentials into the code, it's done. For a consumer, you'll have to come up with some creative accessibility options akin to that of any other prompt-for-data-entry task...

dull thicket
#

I suppose WPS is an easy answer. Connect to a host computer to configure it would also work. I wonder how many buttons and knobs it would take to allow direct entry of the password. You could have a spoken menu of available access points.

trail pagoda
#

Many ESP32 chips have Bluetooth too, so often you can have a scheme to share the WiFi credentials from a phone app. I think Espressif even has a sample app to do that.

glossy swan
#

Hello, does anyone know how to properly form the BLE data packets? I have read that it should be "!B10Å" Where ! starts the packet, B defines it as a button press, 1 is the button number, 0 is the press (1 would be release), and the Å is the checksum. But I get a ValueError: Bad checksum so I think I am missing something....

winged gate
glossy swan
winged gate
glossy swan
bronze sapphire
#

Quick question about Whippersnapper: it looks like in its current form it’s tied to adafruit’s online resources. This is super convenient for new users, but I’m hoping to have my smart home work without any external network access. Is there a plan to enable the whippersnapper service to run in docker or on a raspberry pi in the future?

blissful perch
#

Does anyone know how to send the row number inside HTTP request if I want to PUT or DELETE a certain line in google sheet

#

i am able to do this via Postman App by adding to body Section like {"row":2} but how to add this to http request inside the Arduino

dim agate
#

@blissful perch Is this an Arduino question? You'll want to ask for help with that over in #help-with-arduino

unique valve
#

Is there a way to time how long a pin is high or low in micro seconds,(in 1uS increments) from 0 to over a million?

trail pagoda
unique valve
#

I want to connect a(741 type) comparator to a pin on an esp8266/32 and measure it's pulse width in 1 uS increments. I need a comparator with a 1 million step input resolution as well.

trail pagoda
unique valve
#

I am trying to make an ADC who's output is decimal, not binary.. to 6 digits resolution..

trail pagoda
#

Just in case, I'll mention that you can buy 24-bit ADCs off the shelf.

unique valve
#

Yep, but you have to map binary to decimal and don't get exact 1 uV steps.. which is what I am trying to do.. If you feed a test voltage into 1 side of a comparator and a atriangle wave into the other, the output is a pulsewidth of how much of the triangle wave is above or below the test voltage. If I measure that pulse, I can know the test voltage in 1 uV increments.

trail pagoda
#

And your triangle wave is accurate to 1uV?

unique valve
#

That is what I don't know yet.. I am trying to solve each part of this, but it might even be beyond the resolution of existing parts...

#

The method I am using outputs decimal directly without converting from binary

trail pagoda
#

Honestly I think you're overthinking that part of it. Usually the noise of the measurement itself will be a bigger source of error than a base conversion... or just add on a couple of extra bits of precision and don't worry about it. A 24-bit binary ADC will be able to give a 6-decimal digit answer, for instance, as it has an extra factor of 16 in resolution.

unique valve
#

Thanks for your help.. I am the (Think outside the box) kind of person. Looking for different/(possibly better) ways of doing things.

unique valve
#

wow... (2^24)÷(1.6^6)=1000000 where 1.6 is the difference between base 10 and base 16
But it still looks like I am gonna get fuzzy results mapping (2^24) to (10^6) or is that ((10^7)-1)? (all 9's)
Does mapping make the entire range fuzzy or just the least significant digit?

How do 24 bit ADCs work? Do they count through every value until they get a match, or do they do some kind of bubble sort starting with the highest bit (which would find a match in 24 steps)

trail pagoda
unique valve
#

Fuzzy (if you convert every number from (1 to 10) to (1 to 16) the only integer in the result would be 8..

trail pagoda
#

True. But if you're talking about physical measurement, you start from "this voltage is somewhere between 0.512762 and 0.512768 volts", so any binary or decimal representation of a voltage in that span is pretty much as good as you can get.

unique valve
#

OK, I want to try to come up with a (Proof of Concept).. Even if the parts don't have the accuracy. Coming up with a 6 digit BCD ADC would be cool.

Back to my original question.
Can a esp pin be timed accurately to 1uS increments? Where each increment is exactly the same throughout the entire range?

(If not, do you know if there is a 1MHz 6 digit BCD counter with i2c output) and a comparator that has a 1 million step resolution?

The counter would need
(count enable, latch, read value, clear)

trail pagoda
unique valve
#

These parts may be way out of spec from what I am trying, but I would get a triangle wave from a 555 timer and feed that into (-) input of a 741, then time the output with the esp.. Then convert uS to uV...

trail pagoda
#

The waveform produced by the 555 won't be exactly a triangle wave... it's more like pieces of an exponential capacitor charge/discharge curve. So you'll get better accuracy with some math on the timings you measure.

#

Note that the 741 has an input offset voltage of a few millivolts, too, which drifts by 15uV per degree over temperature. So getting 1 uV accuracy is going to be tough with these parts.

unique valve
#

The other way is use a constant current diode to charge a Cap. This would result in a linear rise time sawtooth.

YES, that is why I was asking if there was a more accurate comparator than the 741. One with a 1 million step accuracy.

trail pagoda
#

Yep, I'm sure there are better parts out there. Just depends on how much you want to spend, heh heh.

unique valve
#

The triangle wave would be at around 1 Hz(give or take), that way the 1Hz PWM output could be calibrated to match 1uV/1uS.

dusky geyser
#

the jst connector on the feather rp2040 can take up to 5v input voltage?

winged gate
loud belfry
#

Does the image converter service still exist on Adafruit IO?

#

I see some guides mention it, but I can't find it

winged gate
loud belfry
#

oh neat, thanks!

winged gate
loud belfry
#

oops, lol, thanks

winged gate
#

No worries!

#

I'll reply here later if I get a link.

winged gate
#

Hope that helps!

loud belfry
#

Interesting - thank you! I'll see if I can get this to work. 🙂

winged gate
#

But I think you had already found guides that used it.

loud belfry
#

I did! I'm trying to make it work on a MatrixPortal and I want to pass an image URL and have it converted to a BMP so I can show it on a 64x64 matrix

winged gate
#

Well, hopefully the PyPortal code will get you going!

blissful perch
#

What does iot mean

trail pagoda
# blissful perch What does iot mean

It's an abbreviation for "Internet of Things", which would include various types of sensors, appliances, and smart devices that connect to the internet but which aren't full-fledged computers or smartphones.

blissful perch
#

Coolnthx

untold pawn
#

I want to use pin 25,26,27 of esp32 as analog input, But in miropython if use ADC for anolog input it is invalid pin. ADC only support pin 32-39. Anyone can help me how can I use 25, 26 and 27 pin as analog input? Or Is it possible in circuiPython? I am using esp wroom 32

dawn lynx
#

but you're right, MicroPython doesn't support that. I think you may be out of luck. You could use Arduino, I suppose.

low fable
wicked elbow
#

✔️ feedback left on page

low fable
#

(I don't remember if I did that at the time)

red quail
#

Scanning available topics, this room seemed the closest fit. Please redirect if I missed a more appropriate channel.

I am interested in adding a control interface to the 5.25" bay of my home server. It would be combining a simple display capable of rendering a line or two of text with a couple of buttons (ideally a dial and a button / clickable dial) and a cable reaching to the back of the machine for USB power & data.

The goal is to have an audio-receiver-like interface for a couple of scripts I would run on the server - interfacing via USB.

I have been unable to locate a pre-existing solution quite like that but am very interested in whatever can get me as close as possible before I need to break out a soldering iron. Anyone here aware of existing work here? If not a finished product then perhaps a kit of some sort?

white junco
spiral plume
#

Hey y'all - first post here 🙂

Anyone know if there will be any nRF53 feathers released anytime soon? I've been looking for low-power boards that will work with Matter/Thread, and ended up on nRF52/53.

I've read that debugging can be tricky with nRF52, because it disrupts the radio (unless you have a segger j-link, which is sold out atm). I guess the nRF53's don't have the same problems, because RF runs on a separate core.

#

I saw the nRF52 board that runs myNewt - which might be easier to debug; however, that SoC doesn't support Thread/Matter.

opaque spade
dawn lynx
spiral plume
#

I can understand that I guess

dawn lynx
#

we might launch, but the support would not be far behind. The nRF53 has a substantially different software base: zephyr instead of SoftDevice, etc., so even for Arduino, it would be an issue. Is there Arduino support for the nRF53 now?

spiral plume
#

I see - yeah I was just thinking of using Zephyr, so hadn't considered Arduino.

#

Not sure - I'll look it up though!

#

That'd certainly limit your customer base.

dawn lynx
#

yes, no strong reason to build a board that has no support other than the official nRF SDK.

red quail
idle crag
#

My apartment climate monitor (using adafruit.io) picked up the overpressure wave from the volcano this weekend.

IMG_9974.png
trail pagoda
idle crag
#

I’m in Oakland, CA 😳

warped marsh
#

Hello- first post- apologies in advance for any missteps. I'm trying to develop an IoT thing that meets the following criteria:

#

micropython or circuit python, I2C, ethernet with POE that powers the processor, and small

#

I've started with a feather RP2040 with the ethernet featherwing, but it needs the the POE splitter to power the board which doubles the size and seems pretty hacky. Is there a better way to do this? I'm only trying to read a basic sensor, so processing power and I/O are not too critical. I'm just trying to keep it simple and small, but within a well supported, hobbyist-friendly environment like circuit python or micropython.

#

Thanks in advance for any guidance!

meager elm
warped marsh
#

Ok, so completely cool- and they even do circuit python- thank you!!!!!!

#

One more question- how are you aware of these? I don't get to spend as much time on this hobby as I'd like, and I just couldn't find a manageable way to survey the gazillions of products out there...

meager elm
#

Let's just say I got bored one day and did a LOT of online window shopping...

warped marsh
#

Cool- I get it 🙂 I just put a pair on order. I'm so excited to get this project fired up, and also to have a basic configuration to add other data collection - thanks again!

vagrant plume
#

The ones Adafruit stocks are a little too big since this is for a cosplay with very limited space

#

I need to be able to have a wireless button

#

I am using an arduino nano already and I can’t change the micro as it’s glued in with superglue

#

This would just be an add on

untold pawn
#

class MachineInfo:
def init(self):
self.allowance = 0.0
self.smv = 0.0
self.sessior_cut = 0
self.trigger_voltage = 0
self.mac = 0
self.device_id = 0
self.status = 0
self.mode = 0
self.break_down_id = 0
self.break_down_name = 0
self.style_id = 0
self.style_name = 0
self.operator_id = 0
self.operator_name = 0
self.line_id = 0
self.line_name = 0
self.line_start_time = 0
self.line_lunch_time = 0

@property
def getMachineInfo(self):
   return {"allowence":self.allowance, "smv":self.smv}
#

I want to get value "smv" and "allowence" individually. How can I do this?

#

if I type
machine = MachineInfo()
amchine.getMachineInfo
it provide whole return value
I want to get the two value individually and want to use different function

trail pagoda
#

To access the individual values, you'd provide a key for the dict return value, likesmv = machine.getMachineInfo["smv"]

untold pawn
#

Thanks

dawn lynx
# untold pawn Thanks

You could also just do machine.smv. There is nothing preventing you from accessing the attribute dirctly.

warped marsh
#

Hello to all. So it looks like bricked my Feather M4 Express (don't ask)- the Arduino IDE sees it for 'board info', but can't load to it ('no device found')- 3 pages info in verbose mode. Double tapping the reset button makes it show up as a drive, but the repair resources I'm finding involve the JTAG/SWD Debugger that doesn't seem to be in stock anywhere. Just curious if anyone has any experience fixing a UF2 Bootloader. Thanks in advance for any advice 🙂

livid sonnet
warped marsh
#

thanks @livid sonnet I got it working with circuitpython, so I guess it's not completely broken. I'll try your suggestion after i work through another issue

dawn lynx
warped marsh
#

Thanks danh- I noticed that

pulsar berry
#

Hey, is there a adafruit Io app for Android?

real iris
#

there's no IO app at all 🙂 the website is designed to be mobile friendly

fossil hill
#

hello, can anyone tell me which is the maximum distance (in reality) to which I can transmit a packet with adafruit feather m0 rfm9x

#

?

hot seal
# fossil hill hello, can anyone tell me which is the maximum distance (in reality) to which I ...

There are so many variables. There have been reports of up to 20KM!! but that was with very specialized antennae. I typically get a few hundred meters with simple wires from inside my house to outside with houses and trees around. 1 to 2 KM should be attainable with direct line of sight. According to the Adafruit guide The RFM9x radios have a range of approx. 2 km line of sight with tuned uni-directional antennas. Depending on obstructions, frequency, antenna and power output, you will get lower ranges - especially if you are not line of sight.

fossil hill
#

yes

#

I read this

#

I need more than 3km

#

I will try will different antennas

hot seal
#

I think it will take some experimentation.

#

Are you using 915MHz or 433MHz?

west plover
#

Does anyone have any active projects using BLE? I have a lot of experience and I’m happy to help out.

winged gate
west plover
west plover
#

Hi everyone, I’m looking for beta testers/feedback for a software project I’m working on. It’s a web app that I built to make it easier to test Bluetooth devices. If this sounds interesting to you, reply or DM through here and I can give you a walkthrough and access (also cross posted in #general-tech, approved by admin)

small shoal
#

Hi all! Eric Skiff from NYC Resistor here - I've been working with https://heatseek.org/ for a number of years iterating on on a cheap, open, and effective way to read temperature, store it in memory (SD or flash) and then send it up to our server via wifi or cell.

In the past we've used feathers stacked with adaloggers, and then stacked with our own custom PCB for the temp sensor and optional cell chip.

This year, we're hoping to build on the Feather ESP32-S2 Stemma, as it makes it even cheaper and easier to get Wifi, flash storage, and connect to the AHT20 stemma breakout board.

Heat Seek
Heat Seek

Heat Seek's sensors monitor heat for New York City tenants during heat season. Learn how we help New Yorkers avoid and solve heat complaints.

#

Our biggest worry right now is that there won't be enough made / in stock in time for the cold season 2022-23 (we need about 160)

#

the 2nd worry is that I've got the devices going into deep sleep, but they seem to have some constant power draw even if I have them on a much slower wake-up cycle (the devices lasted 4 days regardless of whether i was waking them to transmit via wifi every 30 seconds or once an hour). I noticed that the ESP32-S2 QT py had a power draw issue. Is it possible that same issue is happening on the ESP32-S2 Feather?

Before Feb 28, 2022 - Please note there is a hardware bug in the current revision of the PCB that causes deep sleep to draw ~6mA,
As of Monday, February 28th, 2022, the onboard antenna has been rotated to give a better response. We've also fixed low power sleep mode, so deep sleep can get down to 70uA

#

But also WOW I love these boards and CircuitPython so much - it's amazing how great both the devices and ecosystem have gotten over the past few years.

low fable
# small shoal the 2nd worry is that I've got the devices going into deep sleep, but they seem ...

similar thing with the feather, but less:
https://www.youtube.com/watch?v=z9lXg_z0zko

YouTube
Adafruit Industries
Lower-power Rev C of the ESP32-S2 Feather coming soon!

The non-TFT version of the ESP32-S2 Feather has been out of stock for a few weeks because we made a design error in rev B and want to fix it before putting back in the shop. We used a P-Channel FET to enable/disable the Stemma QT / I2C power but kept the pullups connected to 3.3V (this was on purpose because the onboard LC709 battery monitor is ...

▶ Play video
#

(700mA in deep sleep)

small shoal
#

@low fable Oooh yes good spotting! That's it, so they are working on Rev-C that fixes it. Yay!!

sleek egret
#

So, not usually on discord very much. Thought I would share an idea I had after snagging myself a couple of the new QTPy-S2's. I love these little dudes, but thought that I'm missing one crucial feature now from these tiny powerhouses...BLE! Was thinking about submitting the idea through the main @celest lintel website, but thought I'd see just how many other users would enjoy seeing a Nordic-based BLE QT-PY. Any thoughts @pine furnace (he/him) ? I don't want to use a XIAO BLE, I want me a QT-PY with it's sweet little Stemma connector! adafruit 💯 👀

wintry palm
# sleek egret So, not usually on discord very much. Thought I would share an idea I had after ...

There was a video Lady Ada did not too long ago where she was showing off a QT Py with an ESP32-S3, which has BLE as well as Classic Bluetooth and Bluetooth 5. https://youtu.be/Z8HI28LfmtY The QT Py ESP32-C3 that was released and sold out this week has BLE as well. https://youtu.be/c_7gLLxe6ts For the ESP32-C3 version, I suggest getting on the notification list. I did that for one of the feather boards, and they got 86 of them yesterday, that are now sold out again...

#

There's also a blog post about coming out with a QT PY with an ESP32 (no dash anything) with Bluetooth.

sleek egret
# wintry palm There's also a blog post about coming out with a QT PY with an ESP32 (no dash an...

Interesting...I did see the blog post mentioning the C3, but I don't believe there is any Circuitpython support for that as of yet (or at least stable). As far as the S3 goes, I did snag one of the new TinyS3's from @civic sail. Haven't gotten much time to mess around with it yet. I can assume the CP code to set up bluetooth radio would be different than that of Nordic chips, and I just haven't had much time to mess around with it 🙃

low fable
#

yeah C3/S3 support is in alpha, bluetooth on ESP is in alpha

#

there's hopefully no reason for the python code to be different

pine furnace
#

bluetooth on ESP is started but can't do gatt servers or bonding atm

scarlet talon
#

is there an equivalent of the EN pin for the qt py rp2040?

hot seal
#

So I think that is a no.

scarlet talon
reef cove
#

Hey all , I would like to correct GPS via the lora radio, I think I need around 4.5kbps for rtcm , can this be achieved with the adafruit packet radio with message size 252 bytes per call? I'm also open to other ideas too.

trail pagoda
reef cove
#

Anyone know the adafruit lora radio range with the simple spring antenna? Or do you like a better one?

pure sandal
#

Does anybody have extra 3v3 regulators? here is the info:

sage osprey
#

Hi, I am having an issue with my SSID not being broadcast. I am using the IDF not Arduino. The debug logs seem to say everything is find and running. I have used the softap_example_main.c code as a starting point. This is on an ESP32-S2. Any gotcha's I should look at? Thanks.

wicked elbow
#

@sage osprey What board is this? It may help to post your code. You could also try it in Arduino or CircuitPython to see if it works there.

sage osprey
#

Just tried some Arduino code and could not see the SSID. I've tried an Adafruit ESP32-S2 and an Expressive ESP32-S2 devkit. I am wondering if its something in my environment stopping the SSID from being seen. Tried different channels etc. What I will do next is setup an ESP32 to connect to the AP to see if that works. It feels like the WIFI is not being turned on. All a bit odd.

sage osprey
#

I've got one ESP32 scanning and it never sees the other ESP32. They are about 12 inches apart. I have some non S2 modules, will try one of these. Maybe the examples are out of date for S2? 🤔 I need the SSID advertisings to work as the ESP32-S2 is going into a product for a customer that is potted into box that is strapped to a spinning shaft.

sage osprey
#

It is this example in the IDF ./esp/esp-idf/examples/wifi/getting_started/softAP/main/softap_example_main.c

wicked elbow
#

The examples are usually pretty solid, default channel = 1 which should be pretty universal, I can't think of anything external that would be a problem absent active jamming. It's possible the AP and scanning station are too close... I've seen some comments to that effect before, though I don't see that problem in my dense testing environment.

#

if you get the "wifi_init_softap finished. SSID:%s password:%s channel:%d" message in the debug console, then I would also think it's good, at a loss for why a wifi scan wouldn't see it

sage osprey
#

(the AP and STATION will be close with just an air gap)

sage osprey
#

Ok, working now. It was what I had suspected. With a longer USB cable I moved the ESP32-S2 to the windowsill and now can see it's SSID. I always leave the 'blame the environment' option to last as it's so hard to be sure that this is the issue. Easier and more studious to check code and ask others for feedback. Thanks for your help @wicked elbow Anecdata. 😃

south obsidian
#

I just ordered a ESP32-C3 RISC V Developer Board - 4 MB SPI Flash - DevKitC-02 ESP32-C3-WROOM-02 to control neopixels with MQTT, and also to play with BLE. However I thought it was just a flavor of ESP32 until I read the description on the site that it's different because it's RISC-V based. I really just want something 1) I can learn with and not be pulling out my hair with UART drivers or whatever and 2) has Bluetooth LE. Did I get the right one or does Adafruit offer a better choice for that?

dawn lynx
south obsidian
#

oh! I'll check for that. Looks like a lot of feathers...

dawn lynx
#

also Circuit Playground Bluefruit and the Itsy Bitsy

south obsidian
#

they just have so much, thanks for sending me in the right direction!

quartz hound
#

I’m building an IOT project to monitor for water leaks under my house. I’m using a QTPy ESP32S2 with a BFF strapped to it, with power is being supplied by a 4000 mAh LiPo battery connected to the BFF and being recharged by a 5v solar panel plugged into the USB-C on the QTPy. I’m using a BME680 sensor and feed the data up to a RP400 via MQTT into an Mosquito/Telegraf/Influx/Grafana stack. That said, everything has been working well, but I have been getting sporadic hangups on the QTPy side.

The first issue was the connection from the QTPy to the MQTT broker was sometimes not happening. I could manually reset the QTPy and that always solved the issue. To solve this programmatically, I set up a watchdog timer to do a reset on the QTPy in the event of the broker connection hanging, and that appears to be working. But today I’m seeing a second issue, which I think is a low voltage dropout which I’ve seen during my initial development.

I have five of these units running; four outside in ‘live’ mode and a fifth ‘development’ unit connected to my laptop. I’ve not seen the issue lately on the ‘development’ unit, and I have no visibility into the ‘production’ units outside, I can only see their data or lack thereof if they hang up.

In earlier development, I had seen low voltage dropout hang units, mostly when they were running off the battery and the battery was getting low, but not below the operational voltage required for the processor. I think there are voltage spikes triggering the condition by dipping below the processor’s low voltage threshold. I was seeing error messages in the serial data from the unit connected to my laptop.

So here’s my question, I want to see if I can filter out the spikes with a capacitor, but I’m not sure where I should put the cap. I’m leaning towards a combination of a 1 uF and 0.01 uF to smooth the power. I’d rather have them tied to the BFF and not the QTPy itself.

Anyone here ever see this issue, and better yet, solved it?

flat snow
#

Here's the development unit.

IMG_4091.png
gloomy vigil
#

Hi folks, I have a LoRa+IMU+GPS hooked up to my ESP32 (all using the Vusb and V3.3 provided by the ESP32 to power it) and sometimes I’m getting random board reset (setup state is printed multiple times). Any idea to why that is?

Thought it could be the current spike that resets it…but these are low power equipment unlike a water pump system…and don’t have an oscilloscope.

Also, sometimes I have to unplug my LoRa in order to be able to flash new code onto it, otherwise getting error stating cannot auto detect flash-size, but might be two separate issue.