DC 0-25V Standard Voltage Sensor Module Test Electronic Bricks Smart Robot for Arduino Diy Kit

DC 0-25V Standard Voltage Sensor Module Test Electronic Bricks Smart Robot for arduino Diy Kit

Introduction:

This module is based on a resistive divider principle design, make the interface terminal input voltage reduced 5 times, Arduino 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" Arduino connected to the AD pin

Reference Code:

#include

int val11;

int val2;

void setup()

{

pinMode(LED1,OUTPUT);

Serial.begin(9600);

Serial.println("Emartee.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);

}