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
