ITEM NAME:1 Pcs Standard Voltage Sensor Module Test Electronic Bricks For Ro- OZ Description： This module is based on a resistive divider principle design, make the interface terminal input voltage reduced 5 times, A rduino analog input voltage up to 5V, then the input voltage of the voltage detection module can not be greater than 5V × 5 = 25V (if used 3.3V system, the input voltage can not exceed 3.3Vx5 = 16.5V). Because A rduino AVR chips used in 10 AD, so the resolution of the analog module is 0.00489V (5V / 1023), so the voltage detection module detects a minimum input voltage of 0.00489V × 5 = 0.02445V. Parameter: Voltage input range: DC0-25V Voltage detection range: DC0.02445V-25V Voltage analog resolution: 0.00489V Wiring: DC input connector: the positive terminal connected to VCC, the negative connected toGND Output interface: "+" is 5 / 3.3V, "-" then GND, "s" A rduino connected to the AD pin Code: #include int val11; int val2; void setup() void loop() { float temp; val11=analogRead(1); temp=val11/4.092; val11=(int)temp;// val2=((val11%100)/10); Serial.println(val2); delay(1000);.Float temp;. Output interface DC input connector val11=analogRead(1);. "s" A rduino connected to the AD pin. void loop(). Serial.print("V");. "+" is 5 / 3.3V.
