4-Channel LoRaWAN Low-Voltage Output Controller (Class C)

A compact LoRaWAN controller that switches up to four low-voltage outputs remotely — indicator and signal lights, small solenoid valves, buzzers or relay coils. It runs from an 8–28 V supply, each output delivers the supply voltage at up to 200 mA, and because it operates in LoRaWAN Class C it responds to commands almost immediately. Outputs can be switched by downlink from NARA or on a timed schedule stored in the device, for example to run irrigation valves or warning lights at set hours. An event log records activity, parameters can be adjusted with AT commands, and a key allows a quick reset.