Voltage sensor


7 in stock

SKU: MOD-0114 Category: Tag:

Product Description

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 Arduino 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.

Voltage input range: DC0-25V
Voltage detection range: DC0.02445V-25V
Voltage Analog Resolution: 0.00489V
DC input connector: Terminal cathode connected to VCC, GND negative pole
Output interface:
+ 5V or 3.3V
S Arduino AD pins

Reference code:
# include <Wire.h>

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);


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