This is a communication module that implements RS232, RS485, CAN interfaces.
PCB contains three LEDs:
- Relay state LED: Green LED is turned on when relay is on, turned off otherwise.
- Cloud connection status LED: Green LED is turned on when connection is established, blinked otherwise.
- Error LED - Red LED controlled by user. See reference.
- Full set of docs zip
Here you can find the guide on how to order from JLCPCB.
ESP32 DevKit should be mounted on a PCB as shown below:
USB port is located near Status LED.
All electric connections must be done by an authorized electrical engineer in compliance with the local regulations for electrical installations.
ENP-KIT-232-485-CAN uses the same API as other communication modules: