Voltage Sensor Module Test Electronic Bricks For Robot For Arduino

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() 

{   

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); 

}