Search found 51 matches

by pidou46
Tue Oct 15, 2019 1:58 pm
Forum: ESP32 boards
Topic: Reading fan tacho signal frequency?
Replies: 6
Views: 111

Re: Reading fan tacho signal frequency?

what I have understand is that esp are not very good at counting pulses. I have an idea, but my knoledge in electronic design is very low, so please tell me if it's pratical: wiring the pulse output to a capacitor and a resistor, so the pulse will fill the capacitor and resistor will burn this energ...
by pidou46
Wed Sep 25, 2019 1:16 pm
Forum: Programs, Libraries and Tools
Topic: [SOLVED] uansycio.websocket.server/example_websock.py
Replies: 10
Views: 400

Re: uansycio.websocket.server/example_websock.py

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

sever.py
line 10 :

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    respkey = ubinascii.b2a_base64(respkey)[:-1]
line 57:

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	await writer.awrite("\r\n\r\n")
by pidou46
Wed Sep 25, 2019 7:57 am
Forum: Programs, Libraries and Tools
Topic: [SOLVED] uansycio.websocket.server/example_websock.py
Replies: 10
Views: 400

Re: uansycio.websocket.server/example_websock.py

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...
by pidou46
Tue Sep 24, 2019 4:59 pm
Forum: Programs, Libraries and Tools
Topic: [SOLVED] uansycio.websocket.server/example_websock.py
Replies: 10
Views: 400

Re: uansycio.websocket.server/example_websock.py

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

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$ python -m websockets ws://192.168.4.1:8081/
I get the following error:

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Failed to connect to ws://192.168.4.1:8081: Malformed HHTP message.
by pidou46
Tue Sep 24, 2019 4:12 pm
Forum: Programs, Libraries and Tools
Topic: [SOLVED] uansycio.websocket.server/example_websock.py
Replies: 10
Views: 400

Re: uansycio.websocket.server/example_websock.py

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\...
by pidou46
Tue Sep 24, 2019 3:44 pm
Forum: Programs, Libraries and Tools
Topic: [SOLVED] uansycio.websocket.server/example_websock.py
Replies: 10
Views: 400

Re: uansycio.websocket.server/example_websock.py

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...
by pidou46
Mon Sep 23, 2019 2:29 pm
Forum: Programs, Libraries and Tools
Topic: [SOLVED] uansycio.websocket.server/example_websock.py
Replies: 10
Views: 400

Re: uansycio.websocket.server/example_websock.py

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...
by pidou46
Thu Aug 01, 2019 5:53 am
Forum: ESP32 boards
Topic: Pulse counter support
Replies: 11
Views: 802

Re: Pulse counter support

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...
by pidou46
Fri Jul 26, 2019 2:12 pm
Forum: ESP32 boards
Topic: Pulse counter support
Replies: 11
Views: 802

Re: Pulse counter support

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...
by pidou46
Thu Jul 04, 2019 7:00 am
Forum: General Discussion and Questions
Topic: 3d printer firmware based on pyboard
Replies: 17
Views: 1130

Re: 3d printer firmware based on pyboard

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_...