I've planned to play with IR sensors attached to RAK boards. I think that will be fairly easy with #Meshtastic (and to get the related events from the sensors into Home Assistant...).
I would like to try that with RNode's as well (especially given what I as possible w.r.t. telemetry in Sideband the past week). Perhaps RNode_Firmware_CE could include this at some point in time?
More eyeballs needed!