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Voltage Detection Module. Output Voltage Equals Input Voltage Divide by 5 with Maximum Input Voltage of 25V

Part No: HKD VOLTAGE DETECTION MOD 25VMAX

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This module is designed based on the principle of resistance voltage division, which can reduce the input voltage of terminal interface by 5 times.
The input voltage of arduin analog input voltage is greater than 5V, so the input voltage of voltage detection module can not be greater than 5V×5=25V (if 3.3V system is used, the input voltage shall not be greater than 3.3vx5 = 16.5v).
Because the AVR chip used in Arduino is 10 bit AD, the analog resolution of this module is 0.00489v (5V / 1023), so the voltage detection module detects that the input voltage is 0.00489v×5=0.02445V.

Voltage input range: dc0-25v
Voltage detection range: dc0.02445v-25v
Voltage analog resolution: 0.00489v
DC input interface: the positive terminal is connected to VCC, and the negative terminal is connected to GND
Output interface: + "connected to 5 / 3.3V," - "connected to GND, and" s "connected to ad pin of arduin