@brossingo I'm using this lib for Pycom devices: https://github.com/pycom/pycom-libraries/tree/master/examples/DS18X20
It works well. I tested it only with a single device on the bus, but there is also support for multiple devices.
@soren Add ``` alone on the lines before and after your code, or prefix them all with 4 spaces to have them formatted as code.
40000 % 256 (or 40000 & 255, i.e. keeping the 8 least significant bits) = 64, which is the code point for @.