[B-7-1]Voltage Sensor Detection Module

This module is based on resistive voltage divider design principles, it is capable of reducing the voltage of the input terminal connection five times. You can use a 5v maximum voltage on the adc side of the module so which allows for a maximum of 25v on the input side. If 3. 3V is used, the input voltage must not exceed 16. 5V. Because avr chips use 10 bit adc, the maximum resolution of this module is 0. 00489 V (5v / 1023), so the voltage detection module detects minimum input voltage is 0. 00489VÁ 5 = 0. 02445. Input voltage range: dc0-25v. Voltage detection range: dc0. 02445 V – 25v. Voltage analogue resolutions: 0. 00489V. Dc input: positive terminal connected to vcc, gnd negative pole. Output interface: “+” then 5 / 3. 3V, “-” then gnd, “s” then the ad pin.