Embedded software for the Thermostat-EEM multichannel temperature controller.

• using STM32H7 hal
• RTIC based task scheduling
• MQTT networking using the smoltcp tcp/ip stack, minimq for embedded MQTT and miniconf for settings
• signal processing and control based on biquad IIR filters from idsp

pip install miniconf-mqtt@git+https://github.com/quartiq/miniconf@v0.18.2#subdirectory=py/miniconf-mqtt

python -m miniconf -d dt/sinara/thermostat-eem/+ \
    /output/2/weights=[[0,0,0,0],[0,0,0,0],[0,0,0,0],[1,0,0,0]] \
    '/output/2/typ="Pid"' \
    /output/2/biquad/Pid/min=-0.1 max=0.1 gain/i=0.5 gain/p=0.5 setpoint=26.2 \
    '/output/2/state="On"'