Description
DC Voltage Sensor works with Arduino analog input voltages up to 5 v, the voltage detection module input voltage should not exceed 5Vx5=25V (if using 3.3V systems, input voltage should not exceed 3.3Vx5=16.5V). Most AVR chips have 10-bit AD, so this module simulates a resolution of 0.00489V (5V/1023), so the minimum voltage of input voltage detection module is 0.00489Vx5=0.02445V.
DC Voltage Sensor Specifications
- Voltage input range : DC 0-25 V
- Voltage detection range : DC 0.02445 V – 25 V
- Voltage analog resolution : 0.00489 V
- Output Interface : “+ ” connected 5/3.3V, “-” connected GND, “s” connected Arduino AD pins
- DC input interface : Vcc terminal positive with VCC, GND negative with GND
Connecting
- Pin Vcc in the Sensor –> +5V in Arduino
- Pin GND in the Sensor –> GND in the Arduino
- Pin S in the Sensor –> Analog pin in Arduino such as A1
Code
int val11;
int val2;
void setup()
{
pinMode(LED1,OUTPUT);
Serial.begin(9600);
Serial.println(“www.tdegypt.com”);
Serial.println(“Voltage: “);
Serial.print(“V”);
}
void loop()
{
float temp;
val11=analogRead(1);
temp=val11/4.092;
val11=(int)temp;
val2=((val11%100)/10);
Serial.println(val2);
delay(1000);
}