Descriptions:
Module introduction:
This module is based on the principle of resistor voltage divider designed to enable the terminal interface input voltage reduced by a factor of 5, the analogue input voltage is a maximum of 5V, then the input voltage of the voltage detection module can not be greater than 5V x 5 = 25V (if you use the 3.3V system, the input voltage can not be greater than 3.3V x 5 = 16.5V). Because the AVR chip used is a 10-bit AD, the analogue resolution of this module is 0.00489V (5V/1023), so the voltage detection module detects the minimum input voltage of 0.00489V x 5 = 0.02445V.
Parameter:
Voltage input range: DC0-25V
Voltage detection range: DC0.02445V-25V
Voltage analogue resolution: 0.00489V
DC input interface: terminal positive to VCC, negative to GND
This module is based on the principle of resistor voltage divider designed to enable the terminal interface input voltage reduced by a factor of 5, the analogue input voltage is a maximum of 5V, then the input voltage of the voltage detection module can not be greater than 5V x 5 = 25V (if you use the 3.3V system, the input voltage can not be greater than 3.3V x 5 = 16.5V). Because the AVR chip used is a 10-bit AD, the analogue resolution of this module is 0.00489V (5V/1023), so the voltage detection module detects the minimum input voltage of 0.00489V x 5 = 0.02445V.
Parameter:
Voltage input range: DC0-25V
Voltage detection range: DC0.02445V-25V
Voltage analogue resolution: 0.00489V
DC input interface: terminal positive to VCC, negative to GND
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