MicroPython Forum (Archive)

I'd consider an external tri-state gate. The timing of trying to switch the tri-state logic gate using another GPIO pin is near impossile to do, other have tried that from the RPi UART. I did find this circuit for converting full duplex to half duplex on an AVR reference manual. You would also have...

Depending the MCU being used, sometimes you don't need any extra hardware. I have a driver, which you can find over here: https://github.com/dhylands/bioloid3/blob/master/bioloid/stm_uart_port.py which should work on the STM32F4 series and allows you to the the Tx to the Rx and use that as the line ...

Try this instead: (basically drop the ord) That will work for bytestrings but not regular strings.

Your board directory should have an stm32g0xx_hal_conf.h file with a line like this one: https://github.com/micropython/micropython/blob/203ec8ca7fa5f59e20bca95c74a77e3b1e8ef394/ports/stm32/boards/NUCLEO_G474RE/stm32g4xx_hal_conf.h#L8 Then there should be an stm32g0xx_hal_conf_base.h (which you'll n...

To execute a file on the pyboard using rshell, I normally use the repl command and then import the file I want to execute from the repl. You can combine these two into a single line command: repl ~ import hello and that will execute /flash/hello.py on my pyboard. In my own personal workflow I edit t...

You can find the most recent pyboard.py in the micropython tools directory:
https://github.com/micropython/micropyt ... pyboard.py

There isn't really anything to do on the MicroPython side to toggle between REPL and data mode. When you're executing your code on the MicroPython board then you're no longer in REPL mode. Here's the functions that the MicroPython side uses: https://github.com/dhylands/json-ipc/blob/master/stm_usb_p...

I was thinking of using the same serial-over-USB as the REPL is on. This requires that you disconnect the serial terminal that you use for accessing the REPL, but when your code is running, the REPL isn't. With rshell, I put a repl command right in it so you can easily toggle back and forth between ...

You definitely don't want to be writing it to a file, especially if you're using USB Mass Storage. Having MicroPython write to the filesystem while it's mounted via MSC is basically a receipe for corruption. I'd recommend that you send the data back to the host through the serial link. I'd probably ...

Here's an example for you: https://github.com/dhylands/upy-example ... int_exc.py

Look at sys.print_exception: http://docs.micropython.org/en/latest/l ... _exception