PyCom PIC coprocessor driver for IRMACOS
PySEnse/PyTrack/PyScan uses PIC16LF1459 LIS2HH12 INT1(/2?) wired to P13 PySense external pins (EXT_IO4/5)?
References: https://forum.pycom.io/topic/1409/power-consumption-on-pytrack-with-sipy/12 https://forum.pycom.io/topic/1682/pytrack-lis2hh12-interrupts-make-i2c-bus-freeze/5