This module is
based on resistive voltage 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 0.00489V (5V / 1023), so the voltage detection module detects minimum
input voltage is 0.00489V × 5 = 0.02445V.
Parameters:
Input voltage
range: DC0-25V
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