Dark or Light Activated Relay

Dark or Light Activated Relay is a project that will turn on the relay when it is dark or light. The dark or light function can be changed by pressing the push button and its mode will be stored inside the EEPROM.

The level of darkness or light brightness that will relay the relay can be adjusted using variable resistor. If the mode activates the relay when it darkens, the darker light exceeds the set value will relay the relay while the mode activates the relay when it is bright, the bright light exceeds the set value will turn on the relay.

The schematic is as follows.




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