Powered-Down Devices Won't Re-Connect | adafruit | Page 1

mellow lotus Sep 4, 2023, 9:08 PM

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I am running two different devices on .io, one is a ESP32-S3 Rev TFT, the other a QT Py. I have had both woring on WiFi and interfaced to .io, reporting data, and graphing it. When I power down either of them, the Feeds do not see to start again, even though the devices seem (by LED flashes) to be sending data. What am I doing wrong?

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Both report ONLINE.

tropic timber Sep 4, 2023, 9:09 PM

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Can you update to latest version, we have recently (last week) fixed such an issue...

mellow lotus Sep 4, 2023, 9:09 PM

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I am on v1.0.0-beta.71 on both.

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I think this is latest.

tropic timber Sep 4, 2023, 9:10 PM

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Should be, hmmm

mellow lotus Sep 4, 2023, 9:11 PM

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When I reload the Feeds page, I get two messages that they are connected.

tropic timber Sep 4, 2023, 9:11 PM

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Maybe worth doing a full flash erase (the factory reset / nuke uf2 image) and then applying the latest update.

mellow lotus Sep 4, 2023, 9:11 PM

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But, the feeds are hours ago.

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I just did that on the QT Py.

tropic timber Sep 4, 2023, 9:12 PM

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Can you see the serial monitor, does it mention a number of bytes and i2c decode error?

mellow lotus Sep 4, 2023, 9:12 PM

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Can you coach me on the "serial monitor"?

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(And Thank You for responding.)

tropic timber Sep 4, 2023, 9:14 PM

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Sure, what operating system / computer type are you using (mac/windows/linux), and which code editor

mellow lotus Sep 4, 2023, 9:14 PM

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I am on Windows.

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I have not been coding. Just using Wipper.

tropic timber Sep 4, 2023, 9:15 PM

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Ah got you. In that case, let's avoid that for a second, which sensors are connected to the qtpy, and which sensors are setup as components on wippersnapper (do you have all the sensors configured already)

mellow lotus Sep 4, 2023, 9:16 PM

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I am using SHT45, and they are both configured. Were working fine before the power cycle.

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The RevTFT is connected to USB, and is right in front of me.

tropic timber Sep 4, 2023, 9:20 PM

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This site shows the serial monitor after you use the connect button and select the device.
You might need to reset the device, then once you hear the usb/disc connected noise you can try connecting the serial monitor website. https://webserial.io/

mellow lotus Sep 4, 2023, 9:22 PM

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Switching to Edge for that.

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OK... seems to be connected to WebSerial.

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I am connected, and getting PING!'s

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tropic timber Sep 4, 2023, 9:31 PM

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Cool, so before that ping bit it does the connecting to wifi, then mqtt (adafruit IO) then does pin config, then does i2c config (the liekly bit with error message) then does Pings inbetween sensor reads.
Try resetting the board and connecting as quick as possible, if you see something about connecting or pin definitions then you did it quick enough. if all you see is pings then try again but connect more quickly.

mellow lotus Sep 4, 2023, 9:32 PM

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On it.

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Did it. I don't see anything bad....

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tropic timber Sep 4, 2023, 9:33 PM

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No, curious, try refreshing the IO page, are the components (SHT45) still there?

mellow lotus Sep 4, 2023, 9:34 PM

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tropic timber Sep 4, 2023, 9:34 PM

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If so then you'll have to try removing them and re-adding them. That should sync up the i2c configuration message

mellow lotus Sep 4, 2023, 9:34 PM

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Those numbers have not changed.

tropic timber Sep 4, 2023, 9:35 PM

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use the cog next to one of the sht45 data rows, then remove the component, and re-add an sht45. You can see the serial monitor at the same time get those messages to update i2c stuff.

mellow lotus Sep 4, 2023, 9:35 PM

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I will try that.

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I removed the device. Then added the device.

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Then did a I2C scan, and saw it.

tropic timber Sep 4, 2023, 9:39 PM

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I've got a qtpys2 with an sht41, I've deleted it, and created it again as sht45 (same driver). I'm on 30seconds polling, and seen 4 feed values published, I'll now reboot.

mellow lotus Sep 4, 2023, 9:41 PM

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I brought up the Devices page in Firefox and Edge, no difference.

tropic timber Sep 4, 2023, 9:43 PM

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So after a reboot my secrets.json needed filling in (I've seen that before where the device is showing an old copy after being flashed until power cycled).
Then it loaded as expected

mellow lotus Sep 4, 2023, 9:45 PM

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My Secrets is fine, because I show ONLINE at io.adafruit.com. Both wifi and account login thus good.

tropic timber Sep 4, 2023, 9:46 PM

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So do you see the i2c section of the configuration in the serial monitor now, after removing and re-adding the sensor to the device's wippersnapper page. (Reboot device and watch serial monitor again)

mellow lotus Sep 4, 2023, 9:47 PM

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(you rock for taking the time to do this, thanks again)

tropic timber Sep 4, 2023, 9:49 PM

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Okay that looks good. Then the last issue is the Send Every (interval time) for each sensor feed / metric. If you have it set for 15minutes for example (the default) then you wont see a new data value for the first 15minutes of being online after rebooting. This is not the same as if you add a new component (it does an initial reading). There is an open github issue related to this "initial reading"

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Try adjusting the send-every time to 30seconds and then wait for a minute watching the serial monitor

mellow lotus Sep 4, 2023, 9:50 PM

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OK... you are right... it had reverted to 15 minutes. I changed it to 30 seconds, and it started working.

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tropic timber Sep 4, 2023, 9:51 PM

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😄 frustrating but success is better when well earned.
Fortunately it's on the todo list 🙂

mellow lotus Sep 4, 2023, 9:51 PM

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I powered down the QT Py... this was on the Rev TFT..... let me go grab it.

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powered up

tropic timber Sep 4, 2023, 9:53 PM

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🤞

mellow lotus Sep 4, 2023, 9:53 PM

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connection made, but it says my I2C connection is bad. That could be on me.

tropic timber Sep 4, 2023, 9:54 PM

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using the stemma QT port on QTPY?

mellow lotus Sep 4, 2023, 9:54 PM

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no... wired on breadboard.

Q: is Vin a battery input on the sensor?

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I think I found my error.

tropic timber Sep 4, 2023, 9:57 PM

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the i2c port is only the one on the stemmaQT port. Otherwise you need to build wippersnapper yourself (not too hard). Easiest is to make an adapter cable or buy one https://www.adafruit.com/product/4209 [out of stock use digikey or local seller]
Vin should be whatever the StemmaQT cable is providing, or you can supply Vin up to the maximum rating of the breakout, and then 3V is the regulated supply from the Vin.

STEMMA QT / Qwiic JST SH 4-pin to Premium Male Headers Cable

This 4-wire cable is a little over 150mm / 6" long and fitted with JST-SH female 4-pin connectors on one end and premium Dupont male headers on the other. Compared with the chunkier ...

mellow lotus Sep 4, 2023, 9:58 PM

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Thanks... I think this answered my question. I did something wrong.... trying again.

tropic timber Sep 4, 2023, 9:59 PM

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Just to reiterate, the I2C on the QTPY has 2 ports, the pins labelled SDA/SCL, and the StemmaQT port. Only the latter works with wippersnapper.

mellow lotus Sep 4, 2023, 9:59 PM

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It came up!

tropic timber Sep 4, 2023, 10:00 PM

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Wunderbar!

mellow lotus Sep 4, 2023, 10:00 PM

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OK... I think I grok what you said... Sigh....

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I need to steal the cable from the other one.... my cables are not here yet.

tropic timber Sep 4, 2023, 10:02 PM

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Ah yeah, lots of plug and playing 😉
You can also get to grips with code + git and then make it work with the pins instead of StemmaQT port (Arduino i2c port is Wire1 instead of Wire).

mellow lotus Sep 4, 2023, 10:05 PM

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Yay.... QT Py, connected ....

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... and delivering data. As usual, I had two problems at once. Engineering... sheesh.

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tropic timber Sep 4, 2023, 10:08 PM

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Glad to hear both work "as expected", but not "as desired" or really expected 😉 Well done for persevering! (Also I love the reverse tft + qtpy s2/s3's, both lovely things!)

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Wow batteries! Fair play

mellow lotus Sep 4, 2023, 10:09 PM

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😆

tropic timber Sep 4, 2023, 10:09 PM

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C-cells?

mellow lotus Sep 4, 2023, 10:09 PM

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I only look like a noob. Those are a pair of Type 123 batts. 6V total.

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Thanks for teaching me about WebSerial.

tropic timber Sep 4, 2023, 10:10 PM

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oh fair play 🙂 know more than I, I wondered if some camera thing or something 🙂

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That one is very handy, usually works best in Chrome related browsers.

mellow lotus Sep 4, 2023, 10:11 PM

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Yes. Edge worked.

I have a project in mind and need to see how the QTPy and SHT45 use power, for battery life.

tropic timber Sep 4, 2023, 10:12 PM

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Kill the LEDs (break the jumper on back of sensor board), also I think the feathers may be more designed for switching off Peripherals, like the display / i2c may have a separate power pin / control.

mellow lotus Sep 4, 2023, 10:13 PM

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Any way to do that while using Wipper?

tropic timber Sep 4, 2023, 10:14 PM

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You can also slow the cpu speed, and deep sleep on the esp32, but not yet on wippersnapper without getting your hands dirty.

mellow lotus Sep 4, 2023, 10:14 PM

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Heh.... that's my ultimate goal, serious low power consumption.

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My cable should be in tomorrow or the day after, and I'll get both units up and running. If I have two different units up and running delivering data, and they both can survive power downs I will be very happy.

tropic timber Sep 4, 2023, 10:17 PM

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Some temp/humidity sensors have an interrupt pin, which can be used to wake the esp32 when a threshold is reached. Maybe the BME range, but lots of them do, and you could save a lot of power by sleeping the esp32 until the interrupt pin is triggered. The SHT31 has an alert/interrupt pin for example https://learn.adafruit.com/adafruit-sht31-d-temperature-and-humidity-sensor-breakout/pinouts#other-pins-1536805

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< Long term goal for you.

mellow lotus Sep 4, 2023, 10:17 PM

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Neato. Yes, Wipper now, code later.

Thank you so much!

#Powered-Down Devices Won't Re-Connect