Voltage Sensor

– This module utilizes a resistive divider design, reducing the interface terminal input voltage by 5 times. The Arduino analog input can handle up to 5V, limiting the voltage detection module input to a maximum of 25V (or 16.5V for a 3.3V system).

– With Arduino AVR chips utilizing 10-bit ADC, the analog module’s resolution is 0.00489V (5V / 1023). This results in a minimum detectable input voltage of 0.02445V.

– Voltage input range: DC0-25V

– Voltage detection range: DC0.02445V-25V

– Voltage analog resolution: 0.00489V

– Positive terminal connects to VCC

– Negative terminal connects to GND

– “+” corresponds to 5V (or 3.3V)

– “-” connects to GND

– “s” links to the Arduino AD pin