Arduino nano ethernet mqtt->I2C bridge to drive Arduino_SomfyRTS
- Arduino Nano v3 (clone)
- ENC28J60 Ethernet Shield
- RGB status LED connected on pins D2,D3,D4
- I2C on pins A4, A5
Mine is powered by a 5v PoE splitter, connected to a Mosquitto broker for use with openHAB.