LDR CONTROLLED RELAY MODULE SMD
This is a simple LDR dark sensor project which is designed to turn ON a relay (when there is light) and turn it OFF(when there is no light). You can connect a domestic light bulb or mabye fan. u should only give a supply of (9v - 12v) .
you will need : LDR , NPN transistor (SMD) , 5V relay , 220Ω SMD RESISTOR (3) , 220K RESISTOR , SMD LED (2) .
INSTRUCTIONS ,
FIRST SOLDER THE COMPONENTS TO THE BOARD.
THEN SUPPLY POWER TO THE MODULE (9V - 12V).
PLACE THIS MODULE IN A PLACE WHERE DAYLIGHT AND DARKNESS STRIKES.
WHEN THE LIGHT STRIKES THE LDR, THE RELAY TURNS OFF AND WHEN THERE IS NO LIGHT, IT TURNES OFF.
pls like my project
LDR CONTROLLED RELAY MODULE SMD
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