The bridge rectifier allow this board to be powered with both AC and DC power supply adapters. Board has on board 5v power supply circuit, DB9 RS232 port for serial communication with computer and other serial device(GPS modules, GSM Modems RFID Reader), power status LED(RED), Reset switch, User switch for input, User LED(GREEN) for output, and port extensions for all 5 ports .
Trustpilot
2 weeks ago
1 month ago