2013 latest voltage module can detect voltage than 5v. Based on resistance points pressure principle, it can reduce the red terminals interface input voltage by 5 times, the max analog input voltage is 5V, then the input module is no more than 5V x 5 = 25V (if used 3.3 V systems, input voltage is not more than 3.3 Vx5 = 16.5 V). Connect it with sensor shield by 3p cable,you can easily detect voltage, and monitor the electric quantity of interactive media works or robot battery power, make voltage monitor by IICLCD1602 LCD module display voltage .
1, voltage input range: DC0-25V
2, voltage detection range: DC0.02445 V - 25V
3, voltage analog resolution: 0.00489 V
4, DC input interface: red terminals anode -VCC , cathode-GND