MicroPython Forum

Assuming the NEMA 17 stepper motor you targeted is a bi-polar type (4 wires). In that case, I would advice a "drv8825" driver. It's a cheap and clever to use, you need a pin to choose direction and another one to send pulses. So the code is straightforward. You can use the PWM module to generate the...

Ok, thank you

I will try when at home

Here it is my working setup for asynchronious communication between esp(32 or 8266) server and python3.6 client using websocket. I hope it could help someone... server side (esp): download and install official micropython firmware (25/09/19) install "uasyncio 2.0" and "websocket server" libraries fr...

Thanks,

I hope it could help ThomasChr

I have made some tests: I got FixedPoint.py To avoid an error I remove 'TypeError' from line 248 (I will check later thi point) "class FXfamilyError(FXexception, TypeError): " I upload it to my esp32. import FixedPoint x=FixedPoint.FXnum=(1) y=FixedPoint.FXnum=(3) print(x/y) 0.333333333333333333315 ...

Hi, Sometime ago I made some thought, about this subject to build an heliostat. The best option to me would be: - port a fixed point precision library to microptyhon( the original one is python 3.1 so it should be quite easy) - code the astronomic algorithm using this library. Here is the thread for...

I think you are right, LOBORIS seem's to be focussed on Kendryte K210 port now. And yes, it would be nice to have the work done by LOBORIS merged back in the official ESP32 port. But my understanding is that, each project have somehow diverged and copy /paste from one project to the other is not a o...

Hello, My understanding is that it's impractical to drive the step pulse of a stepper driver (A4988, DRV8825, ect...) directly with an esp (8266 or 32) because of RTOS and Micropython latency. What do you think of: https://github.com/lhartmann/esp8266_reprap Instead of connect directly the pins from...

Hi, Here is screenshoots of my proof of concept app running on Windows 7 and Android. If somebody is interested I can share the code, but it's almost an empty shell, only the kv file have a small interest. In current state it connect to an ESP server via socket, but as the server is blocking waiting...

Yep!
I’m looking for it since the beginning of my micropython ESP8862 adventure. It will make my life easiest (a little bit exaggerated). It would be nice to have a link close to the firmware download area.
Thanks