* between your home built sensors/actuators and HA controller of choice. * The MySensors Arduino library handles the wireless radio link and protocol Radio is powered by 3.3V and I uploaded this sketch below to the Mega Ok in a effort to learn MQTT, what I did is the following, I used my RFM69 sensor (that did work on a Serial Gateway, see the values received above) and with that to build a MQTT gateway, I used an Arduino Mega with a W5100 Ethernet Shield and connected the RFM69 radio to the Mega, using the pinouts of the RFM69 & Arduino page and also included a level converter on the NSS, SCK MOSI and MISO pins
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