Expose GPIO modules (Raspberry Pi, Beaglebone, PCF8754, PiFace2 etc.) and digital sensors (LM75 etc.) to an MQTT server for remote control and monitoring.
Simple module for using a HD44780 LCD over I2C
MicroPython library for pcf8574 an i2c digital expander for Arduino, esp32, SMT32 and ESP8266. Can read write digital values with only 2 wire.
