Serial communication on GPIO pin

[jmpratt]

I'm trying to use a GPIO port for SDI-12 communication (http://sdi-12.org/specification.php). It's a one wire, 1200 baud serial protocol. I was looking at the onewire.py module by danicampora from Pycom. Can this module be adapted to another one wire protocol?

[jimpower]

@jmpratt Would you mind providing me a link for the hardware you used? I was thinking of using the RS485 library and a 485 to uart breakout board.

[jmpratt]

@jimpower No I haven't. I ended up using a SDI-12 to serial conversion board. So instead of rewriting the SDI-12 protocol, I just read and write to the UART. It works fine, but requires and extra piece of hardware.

[jimpower]

@jmpratt Did you have any luck with this?

[jmpratt]

Thanks @livius . That code is very helpful. Now, who wants to port it to MicroPython for me?

[livius]

@jmpratt
It is really different protocol
better if you really need it, try to addapt to micropython this one
https://github.com/EnviroDIY/Arduino-SDI-12/tree/develop/src