mchobby/esp8266-upy

MicroPython Cross-platform Drivers - collection of code, wiring and sample for various breakout boards - Works with ESP8266, Pyboard, PYB405, Wemos, etc))

esp8266-upy's Issues

MCP23S17 too slow

Before and after each change of the pin_cs ( Chip Select pin ) there is a sleep_ms(1)
The SPI specifications for the MCP23S17 have some time delays for the CS signal, no more than 100 ns.
I use this code with a Raspberry Pico, WITHOUT any sleep, with a big performance increase .
Maybe a sleep of one microsecond may be safe for a very fast processor.

hat-piface on Pico-W

Hi,
I tested the hat-piface V1 on Pico and it works well with the examples provided.

But with the Pico-W and the same wiring, it does not work and no error is reported in the code.

Is there a different operation for the SPI0 between the Pico and PicoW?
I have not found anything in the documentation of the PicoW

SenseHat - test_joy.py on Pico

Recurrent reading of Joystick position returns an OSError 5 exception on the Raspberry-Pi Pico.
This seems to be unpredictable.
Accordingly to MicroPython forums, OSError would be a NACK sent by the device causing the exception raising.

Remark:
At the moment, no workaround found for this issue. Trying to capture it with a try/except from SenseHat.py just lockdown the Joystick code execution on the Pico!

LSM303 library throws error on ESP8266

I'm using Thonny as my IDE.
ESP8266 running MicroPython v1.18 on 2022-01-17; ESP module with ESP8266
Trying to run either of the three example programs all give the same result...

%Run -c $EDITOR_CONTENT
Traceback (most recent call last):
File "", line 20, in
File "lsm303.py", line 250, in init
File "lsm303.py", line 386, in _write_u8
OSError: [Errno 19] ENODEV

Any suggestions?

ST7687 too slow

I am working with an ESP32 in micropython and it has a very slow screen update. How can I do to increase the speed? I have commented the function def delay_us( self ):