MicroPython Forum

I have applied some bits from pycopy-lib and now it work :

sever.py
line 10 : line 57:

It seems that a CRLF : "\r\n" is missing somewhere in the sever answer. Here it is the client traceback: Traceback (most recent call last): File "/data/user/0/ru.iiec.pydroid3/files/aarch64-linux-android/lib/python3.7/site-packages/websockets/client.py", line 90, in read_http_response status_code, h...

When I try the interactive client from websockets module (https://websockets.readthedocs.io/en/stable/intro.html) :
I get the following error:

I have made some experiments with the app "Web Dev Tools" and it worked nicely, no more error I can send message and get the echo back. b'Upgrade: websocket\r\n' b'Connection: Upgrade\r\n' b'Sec-WebSocket-Key: QX5plYXbL6wOZXq6L+0AcQ==\r\n' b'Sec-WebSocket-Version: 13\r\n' b'Host: 192.168.4.1:8081\r\...

Thank's Jomas, With your advices I get a step further. On the client side (Android Firefox) I get the following output : WebSocket Test CONNECTED SENT: WebSocket rocks ERROR : undefined DISCONNECTED On the server I get the following output: b'Host: 192.168.4.1:8081\r\n' b'User-Agent: Mozilla/5.0 (An...

Hello, I would like to build a GUI running on handled device (smartphone or the like) for esp mcu's. The communication would be built upon asyncio version of websockets via wifi. All the bricks seems to be available in the micropython-lib repository: "uasyncio", "uasyncio.websocket.server" After cha...

It seems able to handel encoders: https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/peripherals/pcnt.html - it count rising and/or falling edge - a filter can be set to avoid glinches - up to 8 counter are availables, not as much as STM32, but it enable quite sophisticated projects...

Hi,

Yes I think it would be usefull for keeping track of an for encoder for instance.

I think it would be a nice feature to add at the V2.0 roadmap https://github.com/micropython/micropython/issues/4821, still I have no idea of what coding effort it would involve...

What is the max number of pulses the RMT can be setup for From espressif RMT doc: https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/peripherals/rmt.html Selection of the clock source, note that currently one clock source is supported, the APB clock which is 80Mhz - rmt_set_source_...

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...