I am currently working on a project with LoRa nodes, gateway and Node-Red.
I built the system to have four nodes collecting voltage and current from power sources and sending to the RAK 831 LoRa gateway. I trapped the data from the gateway using Nodered(TCPDump). and the data is displayed on the guage and charts. and the project is working. but now i want to add a little control feature where i can control and LED and a servo from the Node-red UI to the nodes through the gateway at the various frequencies. is there a way i can do this?
Please i will appreciate any help towards this.