Quick code credited to underdoeg's Gist HX711.py. I've only made a few modifications on the way the captured bits are processed and to support Two's Complement, which it didn't.
Check example.py to see how it works.
- Clone or download and unpack this repository
- In the repository directory, run
python3 setup.py install
sudo apt-get install mosquitto-clients
sudo pip3 install paho-mqtt
Channel A has selectable gain of 128 or 64. Using set_gain(128) or set_gain(64) selects channel A with the specified gain.
Using set_gain(32) selects channel B at the fixed gain of 32. The tare_B(), get_value_B() and get_weight_B() functions do this for you.
This info was obtained from an HX711 datasheet located at https://cdn.sparkfun.com/datasheets/Sensors/ForceFlex/hx711_english.pdf