#microcontrollers

1 messages · Page 17 of 1

real terrace
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In the comment of the product they say that it won't be powerful enough for a RC car or robot 😐

gleaming copper
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"Six motors each package, can work between 1.5-6V, mini size but great power, stable and reliable performance, good for mini fan, science experiments,remote control toy car robot, STEM classroom and more"

real terrace
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That how they want to sell it 😛

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" I bought these to replace a failing motor in my son's radio controlled toy car as the size and voltage (6v) was right. Unfortunately they were next to useless for this application. Despite a description that states they were suitable for use in 'remote control toy cars' and that they have 'great power', they had no where near enough power. Looking inside the motor at the armature and magnets I think I can see why - both are smaller than in the motor it was supposed to replace, with thinner magnets and far fewer windings on a shorter armature.

On the positive side the motors all worked and were of a standard of construction that seems reasonable for the price. They would probably have enough power to drive much smaller remote control cars and also do the job in other applications where lower power is required."

gleaming copper
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some reviews say they will and some say they wont lol

real terrace
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This one is probably correct. If it's small, it might be enough.

gleaming copper
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"Very handy little motors for small cars and toys very pleased with this purchase. Thank you Eric."

real terrace
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Ok, let's hope they are enough.

gleaming copper
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okay

real terrace
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Anyway, the problem is not this. Since without the H-bridge it is working.

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Can you try: p = gpio.PWM(7, 1000)?

gleaming copper
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ok

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it makes a high-pitched buzzing sound

real terrace
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Ok, so it can do higher frequency.

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Now try: p.start(100) and p.start(1000)

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Or even p.start(1)

gleaming copper
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in the same script?

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ok

real terrace
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Yes

gleaming copper
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i cant go above 100

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when i set it to 1, it buzzes

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when i set it to 100, nothing happens

real terrace
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Are you sure this is the command that should start the motor? I mean what does the 50 mean in that comman? 50% of the max?

gleaming copper
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so how i understand it is that PWM have a duty cycle that is between 1ms and 2ms and depending on how large the gap is dictates the speed

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the 0-100 dictates the gap i believe

real terrace
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Yes. p.start(50) means that it will be on 50% of the time and off 50% of the time.

open dock
real terrace
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Can you try it with an LED instead of the motor?

gleaming copper
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i dont have any other electronics sorry

real terrace
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And a resistor of course. And start only low, from 0-10 maybe to see if it changes brightness.

gleaming copper
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sorry i cant

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i have literally nothing but some motors, some wires, the esc, a raspberry pi and a soldering iron

real terrace
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Than I have no idea 😐

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But the link that sommersoft posted looks promising.

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It uses the exact same H-bridge and a RPi so if you try to do it and it doesn't work, you know it's the motors.

gleaming copper
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okay

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thanks for the help, sorry if i sort of wasted your time

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thanks tho

open dock
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rpi.gpio uses software PWM, iirc, so any pin should work. but, might not hurt to try one of the hardware-enabled PWM pins.

gleaming copper
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ok

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i am going to bookmark that tab and look at it tomorow becausee its 00:22am in the UK and ive been doing this for the entire day lol

open dock
gleaming copper
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thanks for the help

open dock
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yw. hope you get it working! electronics can be frustrating... 😄

gleaming copper
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yup

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thanks

stuck thicket
gleaming copper
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@open dock ive done everything in the link you sent me, but it didnt work

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same results as the last time

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different buzzing noises

gleaming copper
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im going to buy some new motors and see if they will work

real terrace
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You don't have any old electronics at home? Like an old printer or scanner or something that you can take apart?

hallow igloo
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Unless you have very good electronics experience, do not pick out an motor from a microwave, because that is highly dangerous for many reasons

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Touch the transformer while the microwave is plugged in and live, you're dead, touch the capacitor without discharging it first, you're dead, touch the magnetron by breaking it and inhaling the dangerous dust, suffocating and until finally you are dead! Many ways to die from a microwave

quartz remnant
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how would I get micropython compiled for ARMV5TLE?

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nvm, seems unsupported as of right now

real terrace
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Thx @hallow igloo that is correct 😉

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@gleaming copper Please don't take a microwave apart!

gleaming copper
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Lol I wasn’t planning on it

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The new motors are arriving on Tuesday and I’m gonna wait until they arrive and then see if they work

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If not I found an old radio that had an led on it and I’m gonna see if I can scavenge any other parts to test to see if it’s the motors, the ESC or just my shoddy programming

real terrace
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You should keep out for capacitors in the radio. Otherwise it should be a good experience 😉

stuck thicket
marble bane
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hi, im here for a suggestion
so me and my team are trying to build a real-time virtual makeup program, but we cannot really get it running realtime
i wanted to ask, how can we infuse a real-time camera input from a RaspberyPi cam to our makeup program?

normal elm
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That's pretty haRD

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hard

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Real time being what level of lag is acceptable ?

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Typically the raspi is pretty weak when it comes to rapid image analysis and if possible you'd want to use more of a dedicated PC

hallow igloo
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Don't you need a graphics card for image processing in real time?

hallow igloo
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@hallow igloo not must

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What?

quartz remnant
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Anyone here have experience getting micropython to work? I opened an issue on GitHub for ARMV5T support but all I got was "support exists" but nothing works when I try following the guide since it's not in mpy-cross supported archs

distant trail
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Anyone run a raspberry pi without the GUI for the OS?

hallow igloo
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ye

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i just ssh into it @distant trail

distant trail
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Yeah but doesnt the GUI still eat up resources, even ifnot being dispalyed?

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I want to host a bot on my pi, and just ssh into it.

hallow igloo
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i-

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i dont think so

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cuz it shouldnt start a gui if it's headless

real terrace
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@distant trail it depends on how do you boot your RPi. You can ssh into it both ways. You need to run it without GUI and then it won't eat up resources.

distant trail
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Ok

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So I could just run raspbarrian without the GUI, and I don't need to touch arch?

hallow igloo
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nO

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theres a raspbian headless version

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no arch xD

distant trail
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Great

jovial meteor
tranquil knot
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Has anyone here even heard of the coral Edge TPU??

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They are so powerful and small!

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Why don't we have self driving drones yet with this technology??

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It's so easy

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Also, there's no YouTube tutorial ls for the sparkfun edge by Tensorflow

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So idk how I'm gonna learn how to use it

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Also has anyone heard of teachable machine learning from Google?

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You can convert your trained model for use with Tensorflow lite , but it only tells you how to use it on coral, not on raspberry pi

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How do I use a tensorflow lite model on a raspberry pi?

edgy silo
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this channel seems like kinda worthless

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its microcontroller channel on python server

oak badger
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hey man people run python on rapis ya know

hallow igloo
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You mean Raspberry Pi?

oak badger
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yeah

vague crane
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Or one of the other hundreds of things that are compatible with MicroPython and/or CircuitPython

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Hardly worthless

tranquil knot
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Does tensorflow 2.0 work on raspberry pi?

edgy silo
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@vague crane soo expensive

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As I know equal to rasperry pi 4

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By costing

vague crane
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It's not expensive

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And even if it was, that wouldn't make it worthless either

edgy silo
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for his abilities

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its expensive

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its*

vague crane
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I don't know what that means

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Or how it makes this channel worthless

edgy silo
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that means discussion channel is worthfull 👍

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@vague crane and seems like you dont know what taxes means in Turkey

tranquil knot
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Have you guys ever heard of the coral edge TPU

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It has a TPU instead of a GPU/CPU

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T stands for tensor

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That's how you know it's cool

edgy silo
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is tpu nvdia jetson kinds ?

tranquil knot
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Yeah like that but from google

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It has tensorflow on it and you can train an image recogniser on it in a few seconds without internet

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And other A. I. stuff

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And you could hook it up to other microcontrollers like accelerometers and stuff

edgy silo
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trains ml without internet ?

tranquil knot
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Yups

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In a few seconds

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From tensorflow

edgy silo
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interesting

tranquil knot
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Check it out

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I linked to the cool part

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If anyone has used it before or the sparkfun edge lmk cause I want to use it

shrewd summit
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So speaking about micropython im trying to use it on one of my esp32 dev board but havnt been able to find a good demo on how to get set up with it yet that is current at least.

young swan
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Im trying to get a python script to run from a desktop shortcut but it will not run and im stuck.

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[Desktop Entry]
Name=Face Scan
Version=1.0
Icon=/home/homelander/Attendance/idicon.ico
Exec=python /home/homelander/Attendance/GUI.py
Path=/home/homelander/Attendance/
Terminal=false
Type=Application

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Im doing this on a jetson nano

lean valve
stuck thicket
broken pecan
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can you make a class that implements the buffer protocol?

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in a python script, not in a c library

daring dawn
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Hello to everyone! Can a Motor Shield v2.3 work with the Metro M4 Express using python? Thanks

daring dawn
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nvm! The answer is yes!

stuck thicket
brazen pecan
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eh ok.. so I'm trying to read what my arduino sends through serial port and i get this kind of gibberish, how can i easily get rid of it ?

📎 unknown.png
brazen pecan
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oh solvedf

stuck thicket
tranquil knot
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Ok guys

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So I wanna run tensorflow 2.0 on my raspberry pi

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Now tensorflow 2.0 only runs on 64 bit

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Which is good cause raspberry pis are also 64 bit

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The thing is that raspberry pis only run on 32 bit OS

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Confused? Yeah me too

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So my question is

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How do I make a 64 bit operating system so I can use the Raspberry pi for tensorflow?

stuck thicket
stuck thicket
tranquil knot
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Ok guys

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I just downloaded Ubuntu onto my raspberry pi

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After hours and hours of struggling it finally works

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It's a miracle

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So it comes with pyhton 3.8

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But does it come with pip?

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When I type "pip --version" into command prompt it says "command pip not found but there are 18 similar ones "

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Do I have to download pip?

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And here's the most important question, does pip need to be 64 bit or 32 bit? Or are they all the same?

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Cause I want 64 bit

hallow igloo
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I had this issue you need to go to the python installation folder

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In the cmd

tranquil knot
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Ok how do I get there?

hallow igloo
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I believe it’s

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Open the cmd

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Then type

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cd directory here

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And I forgot what I did after ngl

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But I remember it’s to do with the directory

tranquil knot
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Ok

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And what do I do once I'm there?

hallow igloo
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I believe you need to install the pip

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Not too sure

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I had to do it for the discord bot

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I can’t remember really

tranquil knot
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Ok, but pips allready on the computer, right?

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I just need to find it, right?

hallow igloo
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Tbh I’m new to python and coding in general so I don’t have a clue

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I was just messing about and remembered I had to find the directory

tranquil knot
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Me neither

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Ok fine thanks though

hallow igloo
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Good luck

tranquil knot
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Have a good night

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Thanks

hallow igloo
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You too fella

potent kindle
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hi, everyone.

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I have an math problem which I have to implement.

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is there anyone who can help me?

tranquil knot
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When I turn on my raspberry pi running Ubuntu, after I log in the screen is just black with the mouse that I can move around

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Anyone know how to fix that?

tranquil knot
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2nd time I turned it on

zenith dragon
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Can anyone help me figure out why my wireless adapter over heats when enabling a SSH?

noble flare
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I am hoping for some advice on what microcontroller to use

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Ideally it would be able to directly controll 12V electronics (small fans)

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and if it has builtin humidity/temperature sensors - even better

feral kestrel
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If only I hadn't disassembled my controller.

real terrace
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I have mine, if you think we can do it like that 🙂

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@feral kestrel

feral kestrel
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I'm pretty good at fixing-things-by-not-actually-fixing-them-but-instead-patching-them.

mellow prawn
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argh got bitten real bad

hallow igloo
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hi i don't know if this is the right saloon.
so I want to change my output camera
ex: if I do cam call on discord and well I wish to be able to modify the rendering of the genre add the text which will be seen on the rendering of my cam

versed moth
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@real terrace sorry, but we don't allow paid work or recruitment here

hallow igloo
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Does anybody know how to import pyserial into an arduino properly?

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All these tutorials on how to install and import it doesn't line up with what is in the official documentation page

hallow igloo
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"pyserial-3.2.1-py2.py3-none-any.whl" Or use this file correctly?

hallow igloo
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nvm, it was solved 😛

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I find it annoying for myself to find out the answer soon after asking the question...

mystic jetty
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has anyone heard of and maybe know how to use arduino-python3?

hallow igloo
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What you looking for in it? I am able to make arduino read python code

mystic jetty
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im just trying to make a mobile robot @hallow igloo

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im able to do it with just an arduino, but i want to try to use python

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so i can use external modules

hallow igloo
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You mean you just want to set up your arduino to read python code?

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I was just able to do that, so I can help you out with that

mystic jetty
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yes, but i would prefer to have it not need to be hooked up to a computer

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because i dont have a raspberry pie

hallow igloo
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That is a more advanced topic that is out of my reach atm

mystic jetty
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oh ok

hallow igloo
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There seems to be no online tutorials on how to run python codes without it being connected to a laptop or computer, which is annoying

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Thus, I'm going to need instructions how to do it as well, assuming it is possible

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"There is no better feeling than combining two cool things. Sadly, it is impossible to directly program an Arduino with Python, as the boards have no option for onboard interpretation of the language. What is possible however, is direct control over USB using a Python program."
FAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACK
@mystic jetty

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Well, there is our answer

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Looks like I have to go deeper into the circle of hell within C in order to get into Arduino completely

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But since I'm remaining focused on one language, I have to go to Raspberry Pi and Micropython

mystic jetty
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yes

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thank you

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i will just get a raspberry pie

hallow igloo
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Wait wait stop

mystic jetty
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I have stopped

hallow igloo
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You said robotics, so your better option would be Micropython

mystic jetty
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whats micropython?

hallow igloo
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It is a microcontroller that is better suited for sensors and controlling robotic based systems

mystic jetty
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ooo

hallow igloo
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Raspberry Pi on the otherhand is better suited for cameras, graphics interfaces, and more complex calculations; it is known as a microprocessor

mystic jetty
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thats cool

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so micropython is like arduino but python?

hallow igloo
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Yes, and so is CircuitPython

mystic jetty
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maybe ill get a micropython board and play around with it

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thank you good sir

hallow igloo
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However, Arudinos are better suited for the task than micropythons because C is closer to a lower level language, keep that in mind

mystic jetty
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that is true

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but ill get a micropython board and see what i can do

hallow igloo
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Have fun

mystic jetty
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thank you

hallow igloo
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As for a side note, it is possible to connect a Raspberry Pi to a Arduino via USB cord

raven compass
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why programming is so hard
i hate it at the same time i love it
seeing results but the process is pain in ass

tranquil knot
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I agree!

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Although I haven't been seeing any progress

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Gosh discord sucks at taking pictures

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I'm trying to run my raspberry pi on Ubuntu 64 bit

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This is the second time I turned it on

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First time I did everything I was supposed to do and it worked great

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Now this is all that shows up after I type in the password on the login screen

fringe iron
tranquil knot
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Thanks

vestal igloo
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Hello, does anyone know of a good way to find timedeltas in circuitpython?

vague crane
vestal igloo
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@vague crane is there an existing method to find the difference between two struct_time objects?

vague crane
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No

real terrace
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Does anyone have an example of SPI communication in micropython that is a bit more complicated than 2 lines of code?

violet valve
#

@vestal igloo You can use time.monotonic() which is since the board started up in fractional seconds. You can set a variable equal to time.monotonic() at a point in your code, and then at a later point, compare it to get the difference. Note that time.monotonic() loses precision the longer it runs.

start = time.monotonic()
while True:
    now = time.monotonic()
    if now - start > 6:
        do_a_thing()
stuck thicket
fathom cosmos
#

Just in case anyone here is interested, I'm doing a live-streamed Q&A tomorrow at 9am PDT and talking about CircuitPython, the VS Code device simulator express plugin (currently supports cpx, microbit, and clue) and the PyBadge project I had put together for PyCon.

more details and a link at:
https://twitter.com/mbcrump/status/1258411407051116544

Michael Crump (@mbcrump)

📅 5/8 at 9 AM PST (Noon EST)
💜🐉 Nina Zakharenko @nnja
📚 Learn about CircuitPython, device simulator express, PyBadge

Join us & ask questions live!

🚀 https://t.co/j4J4rEJTVd

🧞‍♂️@gregor_suttie - Mod

#python #livestreaming #coding #hardware

Twitter
hallow igloo
#

Aww, I'm too late to see the stream 😦

stiff sparrow
#

Hello! I'm trying to create some really short delays using time.sleep_us on an ESP32 running MicroPython, but it seems impossible to create a delay below ~40 microseconds. Is this just the nature of MicroPython or am I doing something wrong?

dusky gyro
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@stiff sparrow How are you checking the elapsed time?

stiff sparrow
#

Oscilloscope and logic analyzer. Tried an ESP8266 with more or less the same result. I guess it's the price of having a interpreted language. It's not really critical in this particular application, but the documentation makes no mention of a minimum delay (0 or above is accepted as argument for the function).

dusky gyro
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This is the first I've ever heard of it. Try asking on the Micropython Forum.

dawn sedge
#

Hi,
I've got a 1.4" Display on a Pi Zero
Which is displaying some details
Its pretty much

While(true)
//Fetch & Disiplay Details
Sleep(300)

Already gonna try look into putting that in a async method or something but i've got two little buttons on the board

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I'm wondering what is a nice clean way to do something like

While(true)

/// Code fetch & display
If (Button Pressed)
// do something
//then continue with fetch&display

versed garden
#

is there a way I could communicate from an arduino to python and then back to arduino?
through the serial port

dull silo
#

you can but you will need to use a module named pyfirmata

vague depot
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How do i run a multi-file python program on a raspberry pi? do i just do 'import <directory name> <file.py>? Or is there anything special i need to do

stiff sparrow
#

@dawn sedge Take a look at interrupts. I have no idea how the Pi handles them, but generally you could monitor buttons with interrupts and set a flag in the interrupt handler. Then you would process the button input after completing the ongoing display update, before updating the display once more.

dawn sedge
#

@stiff sparrow thanks sounds quite advanced for me surely would work similar to having something on laptop/desktop and esc key interrupts it..

I'll test around with it

stiff sparrow
#

Yeah, real time will add a whole new level of complexity. Although a button or two should be reasonably simple. Just remember to keep your ISRs (interrupt service routines) short. Also, anything in your main loop (the display update) could be interrupted at any time unless you temporarily disable interrupts (which is recommended at critical points).

Good read: https://docs.micropython.org/en/latest/reference/isr_rules.html

tranquil gate
#

Hello all, I've never properly worked with microcontrollers before but I have an idea for a mini project that I want to do

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I just need some help with understanding what to buy

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My idea is

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I have a python script on my computer that gets the main colour on my monitor (super easy to do)

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then I send that RGB value to an LED strip that will change its colour to that RGB value

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I've been searching for a while now and can't really find any LED strips that plug directly into a PC

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Any help would be seriously appreciated!

stiff sparrow
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Do you have a specification for a typical strip that you would like to use?

tranquil gate
#

no

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anything that can change RGB

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So if for example I get killed in a game, the RGB goes RED

stiff sparrow
#

Not sure how those strips are typically interfaced, but I would probably go for the cheapest possible ESP8266 module with built-in USB chip (like a Wemos D1)

tranquil gate
#

Just to confirm, buying this means I don't need an arduino/external controller

stiff sparrow
#

The ESP is like an Arduino running Python, if you load it with MicroPython

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(somewhat simplified...)

tranquil gate
#

I see

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how would I take the RGB value from my PC

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to the ESP

stiff sparrow
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Send it via the USB serial connection (built into the ESP module)

tranquil gate
#

whatwebsite do I buy this from?

stiff sparrow
#

You will find loads of resellers on Ebay

tranquil gate
stiff sparrow
#

Then you'll just have to find an SPI or I2C controllable RGB strip

tranquil gate
#

I found a USB to ESP

stiff sparrow
#

I believe that's the bare USB to UART adapter, not what you are looking for

tranquil gate
#

Oh ok

stiff sparrow
tranquil gate
#

Oh my delivery is in 2-3 months

stiff sparrow
#

What's your region?

tranquil gate
#

UK

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I found this on banggood

stiff sparrow
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Not entirely sure whether there is a MicoPython build for that one

tranquil gate
#

I don't mind if its in another language

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unless that'll cause issues with transferring data

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As I aforementioned I am very new to this stuff so I don't know

stiff sparrow
#

You will have to program it, so I guess MicroPython is a good start

tranquil gate
#

that's good delivery

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that seems like a good choice

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It even comes with LED

stiff sparrow
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That's a separate module. But sure

tranquil gate
#

Oh I see

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So quick rundown before I get purchasing

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I buy one of these

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This will (allow me to send instructions to the LEDs from my PC?)

stiff sparrow
#

The ESP will be controllable over USB, but you have to program it yourself to achieve the requested functionality. If you are experienced in Python this should not be a big hurdle

tranquil gate
#

Yeah Python is my strongest language

stiff sparrow
#

You will still need to find either a diretly controllable RGB strip (problably I2C och SPI interface), or get a module to place in between the ESP and the led strip

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Also, watch out for 5V vs. 3.3. ESP:s are 3.3V devices and will not appreciate 5V supply or signalling

tranquil gate
#

oh boy

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it's getting complex again x(

stiff sparrow
#

Welcome onto the learning curve!

tranquil gate
#

yeah

stiff sparrow
#

It can be done, no worries

tranquil gate
#

You will still need to find either a diretly controllable RGB strip (problably I2C och SPI interface), or get a module to place in between the ESP and the led strip

What should I google to find this RGB strip?

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I tried RGB strip I2C SPI and it seems confused

stiff sparrow
#

Your best bet is likely to get a bunch of RGB modules on an I2C bus, if you don't really require the strip layout

tranquil gate
#

How's this?

stiff sparrow
#

Looks great

tranquil gate
#

Alrighty

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So my shopping basket so far

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Is there anything else I need?

stiff sparrow
#

Trying to find some data on those leds...

tranquil gate
#

I just took a quick glance at the micropython docs, I don't think that'll be an issue 😂

stiff sparrow
#

Basic stuff

tranquil gate
#

but that other link had like 10 components including a breadboard

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that seems pretty overcomplicated for what I'm trying to do, no?

stiff sparrow
#

You could try a 3.3V linear regulator from ebay to see if the intensity is high enough at that voltage

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I don't really have any experince with the neopixels

tranquil gate
#

I'm going to have lunch now

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Brb in 5-10 mins

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back

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wow exactly 10 mins

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So i was thinking while eating

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Is there really no simpler way of going about this?
Surely someone might have developed a USB-RGB light

stiff sparrow
#

I guess there might be a readymade product...

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Kind of a niche thing though...

tranquil gate
#

Yeah I've been searching for a while

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I know it's possible with a Phillips hue

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but that's just a casual £300

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I think I can make this for £20

stiff sparrow
#

There is an IKEA RGB bulb

#

You could make some research into the "TRÅDFRI" system

tranquil gate
#

I need it to connect to my PC though :/

stiff sparrow
tranquil gate
#

I can't find any RGB lamps on ikea

#

Or I'm not searching correctly

stiff sparrow
#

9 colours with the remote, but I have a suspicion that it is full RGB under the hood

tranquil gate
#

this is promising

#

It's not cheap compared to the other things we were looking at though

#

but for this all I need is the bulb, right?

stiff sparrow
#

Unfortunately, no

#

You need the gateway

tranquil gate
#

and where do I buy that from?

stiff sparrow
tranquil gate
#

yeah I'm not too sure about spending £50 on this 👀

stiff sparrow
#

It's either that or some tinkering!

#

https://learn.adafruit.com/led-art-with-fadecandy
https://www.ebay.co.uk/itm/WS2812B-RGB-5050-SMD-Strip-5V-Addressable-RF-Controller-Under-Counter-Lights/272910838998

Adafruit Learning System
LED Art with Fadecandy

NeoPixels + Processing

eBay
WS2812B RGB 5050 SMD Strip 5V Addressable + RF Controller Under Co...

LED resource: WS2812B led 5050 SMD RGB LED with built-in improved version of ws2811 ic. IC Type: improved version ws2812 IC (built inside the 5050 smd rgb led). Colors: Full color RGB, color changing;.

stuck thicket
burnt spear
#

I am trying to print a sensor reading to a LCD. No errors but the screen is black. I can print text from the screen. Help

stiff sparrow
#

20 MHz seems a bit too much for that controller. Try baudrate=1000000

#

Or did you mean that you are able to display a static text on the display?

burnt spear
#

I can display static text.

real terrace
#

If you can display static text, then you just need to put that into a loop and change the text and then it won't be static any more.

open dock
#

@burnt spear lines 23 thru 33 never get executed, since they are outside of the scope of your while loop. indent those lines so they fall within the loop's scope...

#

you've also got some extra indent going on there (see the two vertical lines at different positions). not a problem, as long as everything uses the same indent...just something to keep an eye on.

burnt spear
#

What I was wanting to do originally was to make the dht into a function call and call temp_f and hum outside of the function.

open dock
#

nothing wrong with that approach. but with that while True loop above the display code, the display never gets setup and updated with text info.

burnt spear
#

I get it now... thanks for the help

open dock
#

👍

stuck thicket
stuck thicket
shell raven
#

I hava a raspberry pi 4b and I want to control it with a xbox one bluetooth controler. Is there a python 3 library for recieving the signals?

hushed slate
#

whats an almost michael reeves- tier crappy robot idea that wouldnt be impossible for a begginer like me to make if i invested enough time into it?

hallow igloo
#

Just build a simple robot arm with joints operated and only moving by servo motors, and limit their angles to prevent breaking them

hushed slate
#

yes but thats not funny

hallow igloo
#

You can make it funny by pinching people

#

Or rather, it is a tool that is up to you to find out how to make it funny

hushed slate
#

i see

#

omg a weaponised robot

#

jk

#

unless

hallow igloo
#

Well, if you live in the United States, you can weaponize a robot that uses airguns to shoot projectiles at lethal velocities at full auto, but don't EVER put a real firearm on it

hushed slate
#

unfortunately for that i dont live in the US

hallow igloo
#

Then it is very likely weaponizing a drone in your country is illegal

hushed slate
#

ye

#

maybe violence isnt the answer

#

even in this context

hallow igloo
#

Yeah, just make a simple servo motor bot

hushed slate
#

idk what that is

#

im a complete amateur

hallow igloo
#

You don't know what a servo motor is?

hushed slate
#

fully equipped with nothing

#

no can you please explain?

hallow igloo
hushed slate
#

what it do?

hallow igloo
hushed slate
#

what does it do and how do i get one?

hallow igloo
#

It is a electronics component that rotates a spinning disk at specific and precise angles

#

That disk could then translate or take a form to a finger of your robot

#

Or joint of your robot

hushed slate
#

so the disk is the thing on the top right?

hallow igloo
#

Correct, and you fix a finger or joint to it

hushed slate
#

?

#

wdym by finger or joint?

hallow igloo
#

I mean a robotic finger or joint to open or close; move

hushed slate
#

oh

hallow igloo
#

You can find it at Amazon in the product search bar

hushed slate
#

how much are they?

hallow igloo
#

Each servo motor can cost around US 12 to 20$

#

About the price of an SD card or a ordinary meal from a restaurant

hallow igloo
#

THIS IS BULLSHIT! There isn't enough space for the OS!

hallow igloo
#

The hurdles of being an inventor are all bound and full of aneurysm...

brazen tartan
#

hello

#

is there a way to run mqtt subscribe while not stopping other programs?

summer haven
#

use threading module

hallow igloo
#

I seen that video, and that goes to show that "reinforced plastic" does not work

#

If you want to be competitive in that game, you have to make your robot hefty and tanky with heavy steel

#

And does one role very, very well either as a spinner, crusher, or flipper

#

Spinners seem to be the meta, but I'm surprised nobody has tried to have countermeasures or defenses to the spinners with the likes of thick chains or nets armed on their bots to gum up the spinners or something

hallow igloo
#

Nvm, I found out that angled armor is the best defense against horizontal spinners

grim narwhal
stuck thicket
mystic jetty
#

which raspberry pi model should i buy?

untold sparrow
#

depends what you need it for @mystic jetty

#

I have been defaulting to whatever pi 3 since it is powerful, but also cheaper than any 4. I would just look into what you need.

Normally I would go with a 3b+ for most projects since they are so cheap and powerful, but it looks like the 2gb ram Pi4 and the Pi 3b+ are same price rn on amazon. So I would go with the Pi 4 if you are buying it today.

mystic jetty
#

i was thinking of being able to receive data from websites and stream from the pi camera

#

@untold sparrow so should i get the pi 3, since i can get that for 43 dollars?

untold sparrow
#

In the case of APIs and utilizing a camera, I would personally recommend a higher powered Pi with more RAM, but I believe a pi 3 b+ should be enough. Just make sure it has the ports you will require.

When I go on amazon both the 3b+ and the 4b are about $45 right now, so I would get the 4 at that price. Either should be fine for your purpose though.

mystic jetty
#

i think i will settle on pi4

south fjord
#

hello everyone! ı have a question. I want to build a drone that ı will use for shooting a video. Which microcontroller ı should use ?

#

I know raspberry pi but there is so much model i guess

stuck thicket
stuck thicket
deep cave
#

I need to read hall sensor output from a linear actuator on a raspberry pi. There is no datasheet, but it mentions something about pulses. What is the best way to do this?

dire bridge
#

umm, so I have some time spent in python with my pi, but I used the full version of python... I am working on a project that uses the esp32S camera board and I will be using micro-py with it....to be clear: I mostly develop in , C, Java, C++, javascript+node, and at the end python, where python has had the least time spent in it.... any recommendations for modules for micro-py that i could use for my esp needs? it needs : to scan barcodes and send them to a rest api , not looking for too much, just a recommend for a module name.... I will send the barcode result to my rest with a fetch post as a json object... if anyone has any advice it would be appreciated 🙂 if someone does have any recommendations... please @ me X/

azure garden
#

gues, help me. Me need people from Poland for buy Rasp Pi. If have, go friend.

mystic jetty
#

i want to get an adafruit soundboard model 2342, but the description says to send a ground signal to trigger a sound. could i just send 5v to the trigger pins to trigger the sounds?

mystic jetty
#

nvm, i figured it out.
i need to set the pins to high first, and then if i want to trigger the sound pins i make the corresponding pin on my rasp pi to low

neat pine
#

hey curious if anyone know of any fitness band with public bluetooth APIs

fiery sigil
craggy anvil
#

Does anyone know about a Python framework for Arduino?

stuck thicket
stuck thicket
timid hazel
#

how hard is to program a microcontroller with python? I'm an Electronic Engineer but never tried to do that with python.

shy zenith
#

Quite easy - there are microcontrollers that can be flashed with a Python interpreter like circuitpython over USB, and then programmed by just dropping a Python file onto them (also over USB)

#

@timid hazel ^

cunning grotto
#

Hey i need the best way and quicker to get data from hcsr04 sensor without laggs ,in usibg pi zero w and its crashing after like 30 readings fromom sensor dont know what to do in writing with python

fiery sigil
#

Well pretty hard to suggest things without seeing your code. Have a look at the things this library does to improve performance like setting timeouts etc (Introduction section, yes it's Arduino but you can apply it to your Python code https://bitbucket.org/teckel12/arduino-new-ping/wiki/Home). If you need even faster readings you could use those lidar time of flight sensors.

mystic nova
#

I have a sensor im trying to connect to over spi, but the banana pi m2 Zero pinout is a bit confusing...

#

The sensor has: scl sda sdo sao ncs csb

plucky spear
#

@craggy anvil I don't think so

tall sparrow
#

I'm about to start my bachelor thesis and I think I might have to write new code for Tensorflow Lite API to use on Cortex chips

#

Any recommendations/Heads-ups ? I actually think I might also need c++.. lemon_thinking

broken beacon
#

Hi, can anyone give me a hand with some micropython and MQTT protocol? I have an esp32 running micropython and I am reading some values, sending them to the broker hosted on my laptop and from a local client I read the data out with paho-mqtt. But now I want to send that data to yet another script for a gui. How can I do this?

#

Some have sugested using multiprocessing and making use of queue() or Pipe(), but I am not sure how to do that since the local client is looping forever

mystic jetty
#

ive heard of people turning on a raspberry pi using the GPIO pins, but i dont know if thats true or how can i do it

#

i really dont want to fry my raspberry pi, and im using an arduino uno as the source of power

#

i did some deep searching, and i just need to put 5v to pin 2 and GND to pin 6

wispy surge
#

I used that and it works fine on a 4 gb rpi 4 with raspbian

mystic jetty
#

thanks

#

im using a 2gb rpi 4 but ibdont think that makes a difference

meager dock
#

what exactly is raspberry pi

tidal mauve
#

@meager dock basically a credit card sized computer, good for certain tasks and projects. Often running code and stuff.

meager dock
#

thanks boss

sand stone
#

how to i program stuff like a boat or remote controlled turret

brazen crane
#

@sand stone thats a really vague question

cunning grotto
#

hey i need advice for implemantion of logic to the next idea ->
im using HCSR04 ssensor at height of 30-45cm legs height and beneath i got 0-25cm obstacle
my usage with this sensor is for obs' sys' means i have like 5 obs' with gap of 1m from each other and when person caught the sight of the sensor so (dist<60cm) so launch start=time.time()->start measure the time and when the dist>60cm means the person finished to pass the obs' the problem that on real life this logic not so good and not working well.

#

and the obstacle attached to it looks like that

#

please if u have any idea who can help me i would like to hear thnks!!

hallow igloo
#

do you guys know why ios devices open smb file server in read only format?

#

ive got a pi hooked up to my network and i canread and write to it over network from windows and macos but not from my iphone

sand stone
#

if I were trying to build my own RC boat how would I program the receiver to recognize the transmitter's inputs and what output its meant for

slim cosmos
#

Hey, i dont know Python at all but i have to learn about microPython

#

any recommendations?

chilly ocean
#

@slim cosmos I recommend learning the very fundamentals of python before you do anything related to micro python. There are some very important things you have to learn before you go straight to microPython. If you want to learn python just look up some YouTube videos on it https://www.youtube.com/watch?v=rfscVS0vtbw this guy highlights everything in just one video if you have money to spend then join codecademy (thats what I am doing) but its really up to you.

YouTube
freeCodeCamp.org
Learn Python - Full Course for Beginners [Tutorial]

This course will give you a full introduction into all of the core concepts in python. Follow along with the videos and you'll be a python programmer in no time!

⭐️ Contents ⭐
⌨️ (0:00) Introduction
⌨️ (1:45) Installing Python & PyCharm
⌨️ (6:40) Setup & Hello World
⌨️ (10:23...

▶ Play video
slim cosmos
#

Ahh damn it, the hard route

chilly ocean
#

Its just going to be more easier this way 🙂

scenic python
#

Hi, can anyone give me a hand with some micropython and MQTT protocol? I have an esp32 running micropython and I am reading some values, sending them to the broker hosted on my laptop and from a local client I read the data out with paho-mqtt. But now I want to send that data to yet another script for a gui. How can I do this?
@broken beacon I was about to try this too for a project !

#

@broken beacon but you"re using an ESP32 using Python ???!! I'm intersted !

broken beacon
#

@broken beacon but you"re using an ESP32 using Python ???!! I'm intersted !
@scenic python well yeah, though I'm not going to get way too involved in it, I have to do it in the middle of all the other of final exams, so I'm going to be divided XD

#

but dm me if you'd like, no worries

cunning grotto
#

Hey i need help with declaration of ny system with wifi..in using diet pi so i have no gui interface and im using shell only i would like for some help ..thnz (ssh config)

lucid lynx
#

Wow

#

i have a codebug its a little microcontroller but not too much i always wonder what could i make from itand if i could upgrade it.

hallow igloo
#

hello there ,
please help me with my problem.

#

so

#

I have a node MCU amica with ESP8266

#

problem is that whenever i try to check serial monitor , it shows garbage

#

for instance

#

i have tried everything from changing baudrate to changing drivers

#

also i am using arduino IDE

stone crown
#

You're just trying to continually print "lol" or do something else?

hallow igloo
#

well the thing is its printing only "?"

#

even if i try something else

#

but other functions work

#

only serial monitor is messing up

#

that was just a quick typed example

stone crown
#

When you connect to it what baud rate are you using?

#

Oh wait I aww ir

#

*I see it

hallow igloo
#

i have used 9600 (as rated), 115200 as suggested by many website

#

none of them work

stone crown
#

Can you change the baud rate to 74880? Serial.begin(74880)

hallow igloo
#

already done

#

it failed

stone crown
#

Wish I could help more but I don't use that board

hallow igloo
#

nope i have already seen this git hub page

#

none of them work

#

thanks for trying but i believe the board is damaged

#

ok that might not be the case because other things are working well

twin dove
#

I have many different versions of that board and some do require strange baud rates, especially prior to getting micropython/circuitpython flashed onto the board.

Rates to try:
9600
19200
38400
74880
115200
460800

On most of them 460800 will let you see the console output but sometimes you can't flash firmware at that high a rate.

Have you hit a hardware reset via pins while monitoring the console?

hallow igloo
#

aey this is me just from another account the problem is fixed

broken beacon
#

Hi, in class we configured an UART protocol by setting Rx channel in IO2 and TX in IO15. However, by looking at this reference guide I see no particular reason why. Can anyone chip in?

This is from a ESP32 Pico-Kit

📎 unknown.png
stuck thicket
steep dune
#

is putting micro python into a - micro controller a good idea ?

stone crown
#

Depends on your implementation/project and how memory-conscious you need to be

steep dune
#

well parallax propeller 1 -- 32k x 8 bit

broken beacon
#

@steep dune I am using it in an esp32 and it works like a charm. Although this is my only experience with microcontrolers, so I can't speak for other approaches

steep dune
#

mmm im same -- except for im using prop 1 ,, i do wan tto use some of the features in a esp32

#

wifi for a propeller 1

broken beacon
#

I am using it to send data through wifi using mqtt protocol. In fact I came here to ask for help to perfect that connection

#

No I said it wrong! sorry

steep dune
#

i had a tiny peek at MQTT to see if it had a efficiency to TX/RX data as fast as possible

broken beacon
#

I need help with the microcontroller. I have no idea how to get faster sampling rates

steep dune
#

ohhh can i be the devil and ask...

broken beacon
#

right now I'm stuck on about 200hz, I left it to the main loop of the esp. The mqtt is able to send data at reasonable speeds but it leaves room for a lot of more data to send. I'm sending data through the wifi every 15ms (can be different) and I send less than 100 bytes, surely I can pump these numbers up, but I don't know how to get the faster rates

#

ohhh can i be the devil and ask...
@steep dune Sure, go ahead

steep dune
#

why pick the esp32

broken beacon
#

oh I didn't XD

#

It's for one of my classes

#

its mandatory to use the esp32

steep dune
#

ahh ok -- i get it

broken beacon
#

and in all fairness I have no idea about any other options, so to me it's as good as any

steep dune
#

so when you , personally look at the spec sheet , what is a PRO and what is a CON to the chip

broken beacon
#

oh, I can't help you there, I have zero experience with picking a microcontroller

#

Sorry

steep dune
#

no - im going throug a subjective sorting process --- im getting your first impressions to releate to my own

#

your first uC ( microcontroller ) is esp32 , am i correct ?

broken beacon
#

yeah

steep dune
#

the story so far .... -- every one has a pre-bias to a uC , and gets religious about it. -- this is a short coming

#

as example - proppeller 1 has 8 cores ,, true parallel processing -- but but but -- no ADC , DAC , WIFI .....

#

mmmm looking at esp32 data sheet now

open dock
#

the prop1 is a nice little chip. the cog system took some getting used to. its been a couple years since i even touched my prop1.

steep dune
#

many complained it has no IRQ ( interrupts ) , but that is coming from those who never tried it -- is easy to create a programmable IRQ set up with it , its that flexible

open dock
#

oh sweet! the prop2 is out. not cheap...but good to see some actual silicon has come into existence.

steep dune
#

yes -- is real ---- but but but --- in the prop discord room -- not much discussion about any of it -- i feel like a lost orphan there

#

but --- prop 1 available -- $8 per --- and has power to do stuff

open dock
#

i wish parallax had a bigger profile. but, chip R&D is expensive and time consuming... Chip has def put his heart into getting it done, but it hasn't been easy.

steep dune
#

he had a heart attack -- while working on P2 ---- it his lifes work --- pure commitment

open dock
#

oh? didn't know that actually. now i feel sheepish for the "put his heart into it" comment. 😦

steep dune
#

whooosh -- back in here

open dock
#

hey. was reading the sheet on the prop2.

steep dune
#

yes is cool

#

some have over clocked it to 340 Mhz no heatsink

#

design clock was 160 Mhz

open dock
#

crazy what he jammed into that. up to 1MB RAM, on a prop...nuts.

#

hmm. i'm going to have to start thinking about picking up a dev board. seeing a micropython port makes me wonder how hard circuitpython would be.

steep dune
#

not sure yet -- i do all my programming in python 3.7 and spin for the P1 -----

#

i have them talk as - server , client

open dock
# 
As an alternative to the ozpropdev approach, I think a fully integrated setup for an interactive/standalone MicroPython with local KBM + VGA and serial could start to look something like this...

- 1 MicroPython "main" COG
- 1 (or 2) USB keyboard+mouse COG(s) - longer term with true USB HUB functionality it would be good to reduce to only 1 USB COG per physical USB port.
- 1 (optional) UART COG. Right now my native P2 MicroPython does its serial I/O internally in the main MicroPython COG with Smartpins, interrupts and uses the LUT RAM as a receive buffer, but I think RISC-V uses a standalone serial COG.
- 1 VGA COG driver to generate video
- 1 "console" COG to both poll the USB devices and also maintain a video console by writing the serial data stream and any ANSI/VT100 cursor/colour commands etc from Python and feeding any received USB keyboard input data back to Python. Perhaps some of the functionality of this COG could be merged in with the Serial COG Eric uses to reduce the overall COG count. I think it would be good if the text screen was maintained by MicroPython but any Python code still had the ability to access the screen buffer directly using array addresses etc and other high level control/printing functions. Best of both worlds.

This takes anywhere from 4-6 COGs, leaving other COGs remaining for any HyperRAM, fast SD drivers, networking or other I/O specific drivers, debugger functions etc.

This would certainly make a nice little dev system for P2 experimentation using Python.

this... man. like i don't have enough distractions...

will def add this to my list of research items.

steep dune
#

hmmm looks new

#

but i like the approach of logging into a P1 or P2 then have it run stuff as fast as possible , DRAM with MMU i guess , then access to SD , USB , ??????

#

leave fancy graphics to a PC with a dedicated CUDA core

#

P1 and P2 are microcontrollers NOT CPUs ,,, they have limits

steep dune
#

i was thinking of adding a 1Meg x 8 bit DRAM module to the P1 --- why , because its possible to add DRAM to the P2

gaunt lodge
#

t3rafo ahmed allam?

steep dune
#

if i go crazy --- maybe make optomized ASM code for P1 , P2 then converting to fast python

mild bobcat
#

Guys , could I use Firmata in Arduino + PyFirmata to make a mini keyboard ?

#

Using Pyautogui and PyFirmata

cold harness
#

Hey sry this is prob a pretty noob question. I flashed an esp32 with following firmeware: https://github.com/loboris/MicroPython_ESP32_psRAM_LoBo/ ! There are some modules included with this firmeware. The problem I'm facing is, that I would like to inspect the code of those modules. How could I achive this? I'm connected to the esp via REPL

GitHub
loboris/MicroPython_ESP32_psRAM_LoBo

MicroPython for ESP32 with psRAM support. Contribute to loboris/MicroPython_ESP32_psRAM_LoBo development by creating an account on GitHub.

gusty nebula
#

GPU acceleration on pi 4?

#

For idle

cold harness
#

What would be a way to write a custom timeout for a function call in micropython?

steep dune
#

howdy_world

mystic jetty
#

i got my 2342 adafruit trigger soundboard, but when i ground the pin that i set it to play music, it doesnt play music. does anyone have any clue on why it doesnt work, and if you do can you help me fix it?

sudden hamlet
#

it should be fairly simple to build your own serial repl

#

assuming the circuitpython boards work similarly to pyboards

#

(this isn't saying you shouldn't want the feature btw, just a potential workaround)

haughty perch
#

hello, im newbie here, can anyone help me to fix my python code. i am trying to connect my mqtt client to broker and i cannot send my client id to the broker, and can someone help me how to read all the client id that is connected to the broker?

hallow igloo
#

@sudden hamlet Yes, I could do that, but I would prefer to have a scroll buffer be within Circuitpython. I think it is something more than just I would use and it needs to be as easy as possible to use.

#

@haughty perch As far as I know, there is no way to find out what clients are connected to an MQTT broker. Which board and Python version are you using?

#

Typically, a client is only connected for a very short period of time, so by the time you would find out what was connected, the information would not be valid.

haughty perch
#

@haughty perch As far as I know, there is no way to find out what clients are connected to an MQTT broker. Which board and Python version are you using?
@hallow igloo im using a raspberry pi board and python 3.7 version

hallow igloo
#

One that has WiFi?

haughty perch
#

One that has WiFi?
@hallow igloo yes

hallow igloo
#

Are you using the paho-mqtt MQTT library?

haughty perch
#

yes im using paho-mqtt library

hallow igloo
haughty perch
#

no, i have not, thank you for the link

hallow igloo
#

You are welcome. I believe all the information you need is there. 🙂

hallow igloo
#

@long orbit I have a Feature Request 🤓 : There should be a scroll buffer in the REPL to allow scrolling back through more than one page of debug print lines. Fairly often, there are too many debug prints to fit on the REPL display and many will scroll off and be lost. I do not know if the REPL can manage a scroll buffer or how large it can be, but it is needed to keep from losing debug prints. If it is possible to save at least the last page of REPL output that would help a lot. As in many cases, being able to save more lines would be better. 😉

Adafruit CircuitPython 5.4.0-beta.0 on 2020-05-12; Adafruit Feather M4 Express with samd51j19

raw stream
#

Greetings all

#

l just got a raspberry pi 3 B a few minutes ago and l am clueless as to how l am supposed to code it, any suggestions as to which programs l could use?

stone crown
#

I wouldn't necessarily call a RasPi a microcontroller, but it depends what you want to do with! I have one currently running an Octoprint server for my 3D printer (and also some laser printer stuff). I have another that's a OpenHab server. I'm currently working on a third to turn it into a distributed-ML Alg node for edge-decides.

hallow igloo
#

@stone crown The Raspberry Pi is not a microcontroller because it requires an operating system to be functional. I call it a microcomputer. Microcontrollers do not run operating systems, but that line is beginning to blur a bit now with the newer and much more powerful MCUs.

stone crown
#

@hallow igloo No, it's not technically a microcontroller but you can use a Pi in a fair amount of situations that call for a microcontroller. Depending on how far you go customizing the pi and stripping down what's running on it you can get behavior pretty close to a true microcontroller.

hallow igloo
#

Yes, of course, you can use a Raspberry Pi in place of a microcontroller but it would be severe overkill in most cases. I would not want to dedicate a Raspberry Pi, except a Zero, to something a microcontroller can do. Micros also typically have more I/O than a Pi.

elder lake
#

is it possible to run multiple python scripts in the background, kinda like windows system service where it is not visible to gui

#

although you can stop it when you open another cmd and enter a stop code

hallow igloo
#

Are you running Linux or Windows?

elder lake
#

linux based(raspberry pi)

hallow igloo
#

you can simply install python, and you are good to go!

hallow igloo
#

You can set up pretty much anything to run in the background, including multiple Python scripts. The amount of RAM you have will be the only limitation.

graceful hearth
#

I'm at an intermediate py level, but am new to rasberry pi programming. Are there any resources you think i should take a look at?

hallow igloo
#

If you google for "python tutorial" it will show several links you can try.

static cedar
#

Oooh! Raspberry Pi. This is where all the fun is!

real topaz
#

I got a smallish computer what's a good use for it?

static cedar
#

Computing, smallly? What kind?

#

I use an HDMI stick PC as a VPN tunnel into my home network... it's very occasionally useful

#

And currently- albeit due to having to write software for a project- have a Pi watering my basil

real topaz
#

It's not crazy small like some really desperate kid would try and play minecraft on it and that would work okish if their standards are low.

#

Maybe i should just use it for mass downloading of stuff

#

Nah

static cedar
#

That works, too- or slap a flavour of Linux on there and..uh... put it in a cupboard never to be seen again

real topaz
#

Until i find a use for it

static cedar
#

Little emulator console, perhaps? Couple of USB gamepads

real topaz
#

Ehh i got all that stuff already

#

And it's not like i get out much to bring that sort of thing places

#

heh

mossy crow
#

Python is used on microcontrollers?

real topaz
#

Python can be used on whatever you want, baby.

mossy crow
#

Fair

#

I've only used aseembly or C on microcontrollers

real topaz
#

Micropython you know

static cedar
#

CircuitPython/MicroPython

#

Although I still reservedly call either "Python", since they are, but also they're not

#

Though both are getting better at sweeping the considerations of a micro under the rug and feeling more like Real Python™

#

It didn't help that my first real brush with MicroPython was on the BBC micro:bit which is woefully underpowered for running an interpreter. Or, to be fair, running anything sufficiently complicated in that interpreter.

mossy crow
#

Huh, I've never heard of micropython

static cedar
#

It’s a port of Python to microcontrollers - which tend to be exuberant and powerful these days. Whole megabytes of RAM!

grim narwhal
#

Just noticed today that MicroPython is open for GitHub sponsors... If you enjoy MP a little $$ can go a long way!
https://github.com/sponsors/micropython

GitHub
Sponsor @micropython on GitHub Sponsors

MicroPython is a lean, efficient and robust implementation of the Python 3 programming language optimised to run on microcontrollers and in constrained environments. It includes a subset of the Py...

hallow igloo
#

@static cedar Typically the latest micros have up to around 500Kb RAM. Some of the newest ones have more, up to 1 MB, but it is segmented and they actually end up with less for the user.

remote panther
#

I don't comment in here much but I saw MicroPython and have to plug OpenMV. They make MicroPython based vision mcs with machine learning and handy stuff like QR and AprilTag recognition built-in. I used one last summer and it was way more convenient for my task than a pi, never would have finished in time if I used a pi but the openmv was great for quick development.
https://openmv.io

OpenMV
Small - Affordable - Expandable

The OpenMV project is about creating low-cost, extensible, Python powered, machine vision modules and aims at becoming the “Arduino of Machine Vision“.

static cedar
#

@hallow igloo true- working with one with 1MB and “segmented” is definitely saying the very least. It does have some pretty big contiguous portions though. (STM32H750)

hallow igloo
#

I believe the NXP i.mxrt series some that have smaller contiguous regions of RAM.

static cedar
#

Gets fun when you have 128 bytes

#

More so when they decide that needs to be split into "General Purpose RAM" and "Common RAM"

#

And they count the special-function registers in that 128 bytes!

#

So your largest continuous region is 80 bytes 😬

gusty eagle
#

Good evening, do you know which python can be installed with the last Raspbian os version?

#

Last time I checked it was python3.7 with Raspbian buster I think, but it's been a while since

hallow igloo
#

Buster has 3.7.x. You can actually install any other version and make it default if you want to.

#

There are just two more shifts to the left that need to happen to complete my shift text left function. This has been quite an experience.

gusty eagle
#

Buster will be fine then

#

I took the lite version, 10x lighter and 4x less consuming than desktop version

#

gave up GUI but you can't have everything

static cedar
#

I've found pyenv to be pretty handy on Raspbian

#

Although IIRC there are not ARM binary builds available so every new version compiles from source

#

Buster Lite is the bane of my existence 😄 it's too light

#

Customers go "ah, I'll take the small download" without realising what they're getting themselves into

gusty eagle
#

For me it's perfect since I use my pi as a server, and it's always easier to install some packages than cleaning a system

#

I also used pyenv, pretty handy

#

But god, compiling python takes ages!

#

I'm curious though, what do people miss with the lite version @static cedar?

static cedar
#

"git" is one of the more irksome ones, I mean it's easy enough to install

#

And since it doesn't have some of the Python libs pre-installed those can also be a minor hassle- particularly if pip decides to try and fix that

#

Although I believe piwheels fixed "pip install numpy" and "pip install pillow" to not be awful disasters on Pi

static cedar
#

Disclaimer: I do Pi stuff for a day job so I have far too much exposure to it, and strong feelings about things- on the whole, though, I owe the platform a lot for handing me a dream job

gusty eagle
#

As you said, it's not difficult to install what is missing, to me it just show that the user didn't have enough experience with CLI to install the lite version

static cedar
#

Well yes, unfortunately users without experience don't have the experience to not know that they don't have the experience

#

Arch users, for example 😆

stuck thicket
stuck thicket
hallow igloo
#

Why did they add an additional negative sign ?

unkempt sapphire
#

Because of the current direction?

quartz remnant
#

I'm trying to understand and port some C code on a V850E1 board, but I'm struggling to see what this specific snippet does. ```c
// 0x0F840000 is the main LCA1 Hardware version
// 0x0F840004 is some value on the AGB bus we have not been able to document yet
if (some_boolean == false) {
uRam0f840004 = uRam0f840004 & 0xfff7 | 4;
} else {
uRam0f840004 |= 0xc;
}

quartz remnant
#

I know of course what & and | do, I mean what the purpose of this could be

blissful bane
blissful bane
#

Solved by using their beta 64bit OS

molten perch
#

can a normal microchip from a toy car can be recoded using python

sudden hamlet
#

no

#

almost certainly not

#

it's also unlikely that you can easily reprogram it at all, but it's not impossible

coral urchin
# 
void main() {
adcon1 = 0b00001111;
trisd = 0b00000000;
trisb = 0b11111111;   //declara portb entradas
portb = 0;

while(1){
      
      if(portb.rb0 == 0){
      portd.rd0 = ~portd.rd0;
      delay_ms(300);
      }
      
      else{
      portd = portd;
      }
   }
}
outer estuary
#

can memory actually be managed on microcontrollers with python?

#

i don't do too many things with microcontrollers, but i've only ever done anything with c or c++ with them

sudden hamlet
#

what kind of level

#

most of the pyboards manage to let you not worry about that initially, are you thinking of something which would be a memory-intensive operation, or just a large enough program for it to become a potential problem due to sheer complexity

outer estuary
#

nah, i mean i know that memory is limited in microcontrollers. for my senior project, we made a robot and it ended up using a ton of its memory lol from that experience, i figured that it would be important to be able to manage memory manually

#

i did all of the programming because i was the only one who knew how to program at all lol

sudden hamlet
#

ah yeah

#

but is that on the scale of like

#

thousands of bytes of memory?

#

or hundreds even

#

i did my school project on a picaxe 18m2 which had 128 bytes of ram

#

haha funny now go make your project work you smug fuck

winged hound
#

woah big boy words

#

calm down mate

#

im only 13

static cedar
#

Managing memory manually is also known as writing your code in C 😄

#

Actually works surprisingly well in PXT where Everything-Is-A-32-bit-Float, not actually tried it with Python. That said Python does have bytearray.

hot basin
#

Anyone have a Lego EV3 and use python on it?

reef onyx
#

Hello , I am building a greenhouse controlled by a webserver using python flask that is hosted on a raspberry pi. The raspberry pi is connected to an Arduino Uno , that handles the sensor data and actuators. I am able to send comands via the web page but i do not know how to code the python file to send the data that is sent by Arduino to the web page . Please help . Thank you !

sudden hamlet
#

how are the arduino and raspberry pi communicating

hallow igloo
#

the world's biggest mystery

outer estuary
#

i mean, you can communicate between other computers lol it's not like you can't pass primitive data between a c++ flavor and python

graceful sparrow
#

how are the arduino and raspberry pi communicating
@sudden hamlet probably using a REST approach

#

he said he's hosting a flask app on his raspberry pi

#

so the arduino is probably using an http library to make post and/or get requests to the server

#

since he said "Flask" with the raspberry pi

#

this is most likely the solution he/she is using

livid prawn
#

Can an arduino write to serial port while reading what python is writing to it and reading it at the same time?

#

I have the following situation:
Arduino writes sensor data to serial, python reads from serial and depending on what it reads writes to serial port back and when it does the arduino should read it and react accordingly

static cedar
#

Custom 8-bit parallel bus is the obvious solution 😆

stuck thicket
stuck thicket
lucid swift
#

I don't know if this is the right place for this but I'm trying to get https://github.com/ralph-group/pymeasure to work with the APT protocol https://github.com/Applepi/PHYS_Organization_Design/blob/master/manuals/APT_Communications_Protocol.pdf It seems that I need to have some way to convert these header commands to SPCI ASCII so that I can just treat this as a serial link

GitHub
ralph-group/pymeasure

Scientific measurement library for instruments, experiments, and live-plotting - ralph-group/pymeasure

GitHub
Applepi/PHYS_Organization_Design

Neogi Lab Documentation, Refrence Material and Planning - Applepi/PHYS_Organization_Design

static cedar
#

Apparently IMUs are hard 😄

harsh kelp
#

OK so I just got a rpi and electronics kit (i know tech rpi is not a micro-controller) and the guide says to remove the gpio ribbon from the pi whenever youre building a circuit, but the ribbon is a huge pain to remove and im worried ill end up breaking stuff. Is there some.. easy disconnecting ribbon cable or something I can buy? I'm really new to this and I would hate to fry my pi being stupid or break it trying to remove this cable all the time

#

I would also love any pro tips anyone has. I know every hobby has those "I wish I had known this when I first started" things. good resources, useful tools, that kinda thing. Thanks in advance!

sudden hamlet
#

wait what are you removing

#

the gpio ribbon was pretty easy to remove for me by just lifting the short sides

#

wait that was on an old pi

#

yeah no should be same

#

jesus 4gb ram

#

up to 8gb?!

grizzled axle
#

working on a mac with python script (python 2.7) i get "ImportError: No module named serial" so i installed pyserial ("pip3 install pyserial" in Terminal) and tried again but get the same message.

stone crown
#

You're installing a library via pip3 for use with a python 2.7 script?

grizzled axle
#

@stone crown i didn't find any other way

stone crown
#

Well, what python version are you running?

keen lion
#

if it isn't avaliable with pip2 then you need to use python 3

grizzled axle
#

2.7.10

#

@keen lion but pip2 is a command that doesn't work in terminal

#

i use 2.7.10 because the code i found is written in it and i want to test it before making changes (as i am new to python code)

sudden hamlet
#

just pip then

#

and really don't use 2.7

#

we can help you convert the code to work in 3

grizzled axle
#

@sudden hamlet pip doesn't work either. the code is not super complicated. (it's on github under "ircduino" by user walidfaour) i want to use it for servos instead of LED and LCD but so far i can't even get it working as is. converting it to python 3 is pretty much impossible for me because of that. (actually i think a discord bot might be better than irc but i know about discord since yesterday and haven't found out if it is possible to do this with a discord bot)

sudden hamlet
#

yeah discord should be easier and i would highly recommend not starting with this if you haven't done any programming before

grizzled axle
#

well it's for a small theatre project. and in theatre (here in Belgium anyway) we do everything ourselves if we can't find anyone else. so skills are learned when a project requires them. it would be much easier if i could find someone with the proper skills who wants a little challenge but that hasn't happened so i've been on Google and Terminal for days just to find out what questions to ask. not easy (even though when i read the code it makes sense, implementing it is the hard part i guess)

#

i usually do lighting, sound and analog electronics. 3 days ago i had never heard of python, github, discord... 😆

grizzled axle
#

i managed to create a discord bot that i can command to turn the arduino LED on and off using node.js! it's not python but it's a start! it's been a long time since controlling one LED made me so happy

cobalt bluff
#

@grizzled axle that is so nice. If you don't mind can you tell me the code.

grizzled axle
#

@cobalt bluff i used code found on github. is it allowed to put links here?

cobalt bluff
#

@grizzled axle To be honest I don't know

#

try puting it

#

on

grizzled axle
cobalt bluff
#

Ok thanks 👍

grizzled axle
#

you're welcome

pine sequoia
#

I would like to make a python code run by pressing a button in rasberry pi

I recently asked this question and everybody said I should give the code. Here it is. Some part of this code is about camera some of it is about the button. Where is the mistake in this code?Help would be very much appreciated. Also where should I put the pins? Thanks already.

import the necessary packages

from picamera.array import PiRGBArray
from picamera import PiCamera
import time
import cv2
import numpy as np
import imutils
import RPi.GPIO as GPIO

def on(pin):
GPIO.output(pin, GPIO.HIGH)

def off(pin):
GPIO.output(pin, GPIO.LOW)

def setPins():
GPIO.setup(32, GPIO.OUT) # Renk: Kirmizi
GPIO.setup(33, GPIO.OUT) # Renk: Mavi
GPIO.setup(40, GPIO.OUT) # Renk: Yesil
GPIO.setup(35, GPIO.OUT) # Şekil: Kare
GPIO.setup(36, GPIO.OUT) # Şekil: Daire
GPIO.setup(38, GPIO.OUT) # Şekil: Altigen
GPIO.setup(37, GPIO.OUT) # Şekil: Yildiz
GPIO.setup(40, GPIO.OUT)
GPIO.setup(7, GPIO.IN, pull_up_down=GPIO.PUD_UP)

def allOff():
off(32)
off(33)
off(40)
off(35)
off(36)
off(37)
off(38)

GPIO.cleanup()
GPIO.setmode(GPIO.BOARD)
GPIO.setup(32, GPIO.IN)
setPins()

#

Can someone pls help me with this code

#

Some of this is camera some of this is button all I want is run a project with pressing a button

stuck thicket
waxen yarrow
#

@pine sequoia what is the issue you are having?

#

Are you able to detect button presses?

elder lake
#

what is the best library for bluetooth low energy?

keen kettle
#

Anyone here works with nVidia Jetson Nano?
Or any dedicated sicord servers on it?

tall sparrow
#

Anyone familiar with Tensorflow Lite ? I'm developing operators on Micro and need some help :=)

hot warren
#

What's the cheapest arduino with some form of output pin?

#

I really don't know much about arduino's, but I have some unix/raspberry pi experience

vague crane
hot warren
#

Sure

#

Any board is probably fine?

vague crane
hot warren
#

Is there a UK equivalent?

#

But thanks for the direction @vague crane

vague crane
#

A lot of their stuff is on Digikey, which might have UK options

static cedar
#

cough

#

Although- to be fair- if you just want a cheap would-be Arduino then you can get knock-offs for a few quid

#
  1. It's awesome
  2. It's 32bit and will blow a 328p or 32u4 out of the water
  3. Good support for the Arduino IDE from PJRC
  4. Nice and smol
stuck thicket
hallow igloo
#

im a little curious on how python works with microcontrollers like arduino. what specifically happens with the .py? does it get converted to a cpp build or sth cuz i just pulled out an arduino that i had from a long time ago and im not sure if i should use python to program it or cpp

stone crown
#

Most python on microcontrollers I've encountered is usually MicroPython, but it makes what boards you can use a bit limited.

I do know I was looking at using Firmata & pyfirmata, but I haven't actually used it. https://github.com/firmata/protocol
I've also seen PySerial, which you can use to communicate with an arduino.

But honestly it depends on the board. Some boards don't have enough memory for python and you need to go down to C.

hallow igloo
#

my board is like 5 yrs old and i feel its not a legit board

#

its just that im not a huge fan of the arduino ide

stone crown
#

Yeah... It's not the greatest. They have made some improvements though

#

What board do you have?

hallow igloo
#

makeblock orion

#

lol

#

my friend in engineering was like da faq

#

but there is documentation on it

#

which is nice

stone crown
#

Huh. I had not heard of that but it looks like it's aiming to be analogous to Arduino Uno.

hallow igloo
#

yeah

#

cuz i wrote sth and told the ide i was using uno

#

and it recognized it

hallow igloo
#

im wondering how to compile what u write without using the arduino ide

floral spruce
#

you can use arudinos with python technically i believe

#

but the arduino will need to be plugged into your pc

#

can't save it to the arduino i don't believe

hallow igloo
#

so ur simply communicating via serial

#

cuz i was thinking about uploading

#

cuz my kit that i dug out only came with motors lol

#

so i was like i might as well give it wheels or sth

hallow igloo
#

does anyone know the microcontroller model on an uno

marble briar
#

just search it on google

daring cedar
#

ATmega328

summer haven
#

👍

hallow igloo
#

Alright then hey

keen lion
#

Those lights aren't easily controllable outside the remote

#

You'll have to do some fancy electronic stuff, and youll also need an arduino or something probably

hallow igloo
#

I have an arduino

hallow igloo
#

So because the strip is wifi I might be able to connect with home assistant and use the api.

hallow igloo
#

u prob have to look into the documentation for it

hallow igloo
#

yeah, wont be as hard as my first thoughts tho

#

i think u should be able to avoid using the arduino

#

yeah, I need another project for that

#

like connecting to the wifi?

#

prob

flint hill
#

flask is consider as a microcontrollers?

keen lion
#

no microcontrollers are hardware

steep dune
#

microcontrollers = uC , save some letters

plush ocean
#

hi anyone here knows about raspberry pi? I have a one from 2012 I believe, when I try to sudo apt-get update, it manages to fetch some things, but then it tries to reach some links and it gives me a 404 Not Found error, this happens to every update/install that I try to make
I tried to get pip by sudo apt install python3-pip and it happens the same
if someone could please help me I would really appreciate it

mild palm
#

@plush ocean if you have an SD reader you should install the latest version of Raspbian. Not entirely sure if your RPI will be able to run it since it's extremely old. Make sure to backup everything on the card.

https://www.raspberrypi.org/downloads/

Raspberry Pi
Raspberry Pi Downloads - Software for the Raspberry Pi

Download free software for Raspberry Pi, including Raspberry Pi Imager, Raspbian, and third-party OS images. Beginners should start with Raspberry Pi Imager

pulsar lantern
#

Hi guys, ive just been messing around with an esp8266 running Micropython to controll a passive speaker with PWM

#

I've found that that when I try to set the frequency to 0 in between two other frequencies, it takes a while and seems to skip the next notes

#

does anyone know another way that I could possibly get a silence without setting the frequency to 0?

amber merlin
#

you could turn it off lmao

#

@pulsar lantern

pulsar lantern
#

yeah... problem is im not rlly sure how?

#

like would i set the value of the Pin to 0?

#

@amber merlin

amber merlin
#

yeah set it to low

#

@pulsar lantern are you using the arduino ide

pulsar lantern
#

nah, pycharm

#

though i tried setting the pin to low and it didnt work

amber merlin
#

micropy sore something

pulsar lantern
#

huh?

amber merlin
#

micropy ?*

#

is that what your using

pulsar lantern
#

the language yeah

#

realised that i needed to set the pwm duty not frequency

#

so i think i have it working

amber merlin
#

good shit bro

pulsar lantern
#

thanks for the help!

hallow igloo
#

I am trying to use python struct packing and I have a struct variable I am trying to represent that is 32 bytes in size

#

at first I just defined a normal python variable 'var = 0' (default value) to store this and went with the formatter '32s'

#

but it did not like that

#

then tried doing a python array to represent this so the struct can pack that into it 'var = [0,0,0,0,0,0,0]' (on the assumption each array value is represented as 32 bit integer/4 byte value

#

it did not like that either as it wants the exact number of items but sees var as one

#

even tried it with 'IIIIIIII' formatter of 8 integers

#

any idea

#

was thing to think of a cleaner way than having to do

#

'var1, ... , var8'

#

or

#

'var[0], ... var[7]'

shy roost
#

Hello. I have a little question I havnt been able to understand, I sure its easy, but dont get it yet.
I am comunicatin arduino to python3 with Pyserial library. I can send and resive messages with no problems (I send b'0' and blink a led, and send a b'1' and stop blinking). But when i want to recive messages I have a problem, from the arduino side I have:

Serial.write("ok");

And from the python side I have:

m = uno.readline()
print("m",m)

#

What I get is, b'10ok' . How can i change the datatype to just get "ok"??

#

or the if I just want to send numbers, I havnt figure this out, if you could please help me.

#

Thanks in advance!

keen lion
#

what happens if you send a different string

#

are you writing 1 and 0 before ok

shy roost
#

yes, what I get is this: b'10ok'

#

If I send another strin, I get thge following: b'10other'

keen lion
#

Well don't write 1 and 0 before it then

shy roost
#

no, sorry, what I get has a 10, not what I write

shy roost
#

**What i get on the oython part is b'10ok', but what i write is just 'ok'

#

I sure its a base change, but havnt been able to get it yet

shy roost
#

Hello, you where right, I was printing the 10 myself, jaja, thanks, I thought you where messing with me.

#

Thank you!!!

steep dune
#

anyone do stuff with parallax propeller 1 and python

stuck thicket
stuck thicket
floral spruce
#

anyone got any raspberry pi project ideas?

#

recently set mine up and trying to think up some things i can do with it after i finish my current project

limber relic
#

rpi is weird to me because it feels like a waste to use it as just a microcontroller

#

how about a music/media control center with a "now playing" readout and some physical knobs and buttons?

shy roost
#

Hello, what I want to do is to send a message to a micro from python, and then stop the program in python untill the micro has send back a message, I tryied with an if, or a while a condition is != from some message, but haven't been able to get it functioning. Any hints in this?.
I read something about a watchdog, could this be a good method?
Thanks a lot in advance.

hallow igloo
#

Why was my suggestion deleted?

#

You gotta provide more info @shy roost

#

what microcontroller

#

How is the message being sent from python? UART, i2c, usb

#

Is the microcontroller preprogrammed to provide a response?

#

Watchdog is usually used to reset a micro or pc

#

And without knowing the extent of the python library

#

I'm gonna guess this is an Arduino?

shy roost
#

Hi @hallow igloo thanks.
The micro is an arduino yes, the message is sent via usb using the Pyserial library.
in the arduinos end, for the moment it just recives a message, and depending is this message is a b'1', it blinks a led on and off, using delay (1000) for one second between on and off.
After the led has blinked, it send a message back, with:
"Serial.println("Ok")"
I do get this message in the python side, with ".readline()", but I cannot compare it to something.
The idea is to coordinate everithing, send messages, wait, etc...

#
  • The message is printed this way: "print("arrive",arrive.decode("utf-8"))
    "
hallow igloo
#

Set a timer in code, software timer to wait say 2 seconds since you micro doesn't send it til after one second

#

something like

#

currTime = datetime.now()
timeout = currTime + datetime.timedelta(seconds=2)

#

while currTime != timeout:

#

read line or whatever (the USB)
currTime = datetime.now()

#

this grabs the current time

#

Calculates the time two seconds from that current time

#

The while loop checks the buffer if a message was received

#

and updates the currTime til

#

It exceeds the timeout

#

It's not the cleanest code and might need some syntax looked up

#

You'll need to do import datetime

#

Also the message you want should be sent back out on the microcontroller over the same USB port I would imagine

#

print would go nowhere seeable by you

#

With a debugger attached

#

Sorry for confusion this is the best help I can give with the info provided

# 
currTime = datetime.now()
timeout = currTime + datetime.timedelta(seconds=2)
reply = None
while currTime <= timeout or reply == None:
  reply = read line or whatever serial buffer you are sending a message on from the microcontroller
  currTime = datetime.now()
#

something like that

#

is what im thinking

#

without details of the arduino api and such

shy roost
#

Thank you very much. I will understand it, and try it, and write back.

#

The arduino is am arduino uno.

#

the code is the following:

#

char serialData;

void setup() {
/
Serial.begin(9600);
pinMode(LED_BUILTIN, OUTPUT);
}

void loop() {
if(Serial.available()>0)
{
serialData = Serial.read();
if(serialData == '1'){
digitalWrite(LED_BUILTIN, HIGH);
delay(1000);
digitalWrite(LED_BUILTIN, LOW);
delay(1000);
digitalWrite(LED_BUILTIN, HIGH);
delay(1000);
digitalWrite(LED_BUILTIN, LOW);
Serial.println("Ok");
}
}
}

hallow igloo
#

Okay so your message is longer than 3 seconds to appear

#

So a timeout for 4 seconds at least would be needed on python script side who waiting for message

shy roost
#

from the python side, the code is the following:
"""
import serial
import time
uno = serial.Serial('/dev/ttyUSB0',9600,timeout=1)

def led_off():
print("hola off")
uno.write(b'1') # Escribir(0)
llegada = uno.readline()
print("llegada",llegada.decode("utf-8"))
if llegada.decode("utf-8") == " Ok":
print("Sisisisi")
#print(uno.name) #Puerto realmente utilizado

#time.sleep(0.01)
for i in range(10):

led_off()
#

ok, will put the timeout for 4 seconds

hallow igloo
#

Yes timer should help

#

You are sending a bit over USB then waiting for a response

#

That execution time is orders of milliseconds at most

#

By that time your Arduino has only blinked once

#

Honestly that whole function has excuted by the time the first led has blinked most likely

#

I see you are trying this ten times as well

#

Yes but a timeout on the uno.readline()

#

Happy coding!

shy roost
#

thanks!!. you too

hallow igloo
#

@shy roost how did it go

shy roost
#

Hi @hallow igloo , it whent well, but i finally did it this way:
"""
llegada = uno.readline()
if llegada == b'1\r\n':
print("Sisisisi")
"""

So i managed to use the comparison with what came back from the Arduino, but righting it in that way b'1\r\n', after i tryed it like a string, but that didn't work.
I tryed it this way, thinking that if I got an error in the Arduino side, the python code would not go on, independently the time.

#
  • That print is just to make the first tests**
sand bay
#

who is playing the micropython?

full prism
#

i am also doing the arduino

hazy kiln
#

who is playing the micropython?
Me, on esp8266 d1 mini's

near prawn
#

Does the RP 4 count as a microcontroler?

cerulean ore
#

So I have a Raspberry Pi that I'm running a web server on and I also want to tie that into to controlling external devices (an LED for now), and the web server runs in it's own thread, but in order for the LED to remain in an "ON" state, you essentially have to tell the script to "pause" after turning the LED on, then when you want to turn it off you have to kill the script.

This obviously impacts the web server if you pause the script. My thought was to start another thread that just turns the LED on and waits via the "pause" command until I want to turn it off.

My question is, how would I send a terminate command to a thread that is "pausing"? Normally with threads I have a while loop that constantly checks for a "RUN_THREAD == True" variable, and when it see's "FALSE" it exits the while loop
Then I would tell the thread to .join() the main thread and carry on it's merry way. But how would I do this in a thread that's just "paused"?

sand bay
#

@near prawn RP 4 is not a microcontroller, it is a micro computer.

full prism
#

Guys I am using an arduino kit with python. So I have my main codes and I wanna create a arduino code when user enter Odd number red Led light up, when even green light up

#

So do I do the code in the same file or do in a new file
?

hallow igloo
#

u need to code arduino

#

and code ur userinput file

silent nova
#

HI I am relatively new to micro-python. Is micro-python or circuit python more supported ? Also how can I tell how much space I have left in memory after loading micro-python into a ESP32 thanks

near prawn
#

@sand bay yeah but it has 40 io pins

#

its a mircro computer with a micro controler feature

hallow igloo
#

and gpiozero, and hdmi ports and usb ports and etc :o

near prawn
#

yeah ik,i never said it isnt a micro computer

hallow igloo
#

i knowwww i was just pimping the rpi over an arduino xd

near prawn
#

but man its hard to get it shipped here its like 50 dollars more lol

hallow igloo
#

h e c c

near prawn
#

arduino do be cheap tho

#

but i mean yeah rpi is superior,+ it runs on linux which is sweeet

#

i bought the psu of the rpi 4 but i cant get myself to buying the thing

#

i got cabels,the micro sd and a hdmi diplay

hallow igloo
#

my rpi official display broke ;-;

#

so i have to use the pin interface instead of the dsi cable

near prawn
#

had cooling??

#

Im gonna be making my custom cooling

#

passive alu cooling + active fan cooling

hallow igloo
#

thats the case i have