Electronics Projects, LDR and Transistor Automatic Light-Dark Switch Project article
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Light, dark Switch circuit operation to circuit is located on the DipSwitch 5 number must be open. 1 and 2, 3 and 4 are closed while the circuit connected to the relay output device the light key (bright environments. If the device stops the dark environment.) It is used in. 1 and 2, 3 and 4 open while the circuit connected to the relay output of the device in the dark key (dark is executed. Bright environment the device stops.) It is used in.
The circuit works with 5 volts DC input voltage is 5 volts will be used-no need to use 7805 5v 9v …12v regulator IC 7805 should be used if
The light level is set with the potentiometer.
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Automatic Light-Dark Switch Circuit pictures
Diptrace pcb and schema files in the project : ldr-transistor-automatic-light-dark-switch-project.RAR