2pcs Standard Voltage Sensor Module For Robot Arduino fresh SEJCâ„–[

ITEM NAME:2pcs Standard Voltage Sensor Module For Robot Arduino fresh SEJCâ„–[.Output Interface : "+ " connected 5/3.3V, "-" connected GND, "s" connected Arduino AD pins. By 3P connector, connect this module with the expansion of board Arduino. Serial.begin(9600);. pinMode(LED1,OUTPUT);.