Great ! This Voltage Divider Module Sensor is based on resistor divider principle. With the Arduino Sensor Expansion Board, it can complete the detection of the size of the voltage and the quantity of electricity. It can monitor the quantity of electricity of the interactive media works or the robots.

This voltage detection module can get the input voltage reduce 5 times. AS the maximum of the Arduino anolog input voltage is 5V, the input voltage of the voltage detection module can not be greater than 25V ( 5V*5 =25V). The minimum of the arduino analog resolution is 0.0049V, so the minimum input voltage of the voltage detection module is 0.0245V (0.0049Vx5 = 0.0245V).

Arduino test code: 

  void setup() 
   { 
      Serial.begin(9600); // 9600 bps
   }
   void loop() 
  {
    int val ;
    val=analogRead(0) ;
    int v = map(val, 0, 1023, 0, 25) ; //0-25V
    Serial.println(v ,DEC) ; //
    delay(100) ;
  }

Product Parameters:
Input Voltage: DC maximum 25V, minimum 0.0245V.
The connection of the power to be detected: VCC - positive ; GND - negative.
Pins: 1 - Output, 2 - GND, 3 - None.
PH2.0 interface, a data cable is included.

Package Include:

• 1x Voltage Divider Sensor
• 1x Data Cable

Note:

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