@esfnl said in RPi 3 with Domoticz and RF-link (RFXcom) 'TSP-fail': MySensors is supported MySensors is supported if you connect an NRF24 to the RFXCom as instructed in the link, did you ? As explained, it can only receive information, so as you seem to have no gateway to assign node ID you will need to define your nodes as passive nodes and hard code node id : #define MY_PASSIVE_NODE #define MY_NODE_ID 2 #define MY_PARENT_NODE_IS_STATIC #define MY_PARENT_NODE_ID 0