A dark sensor that lights a LED when it's dark.
Using a BC547B transistor, a LDR light dependant resistor, a 220ohm resistor, a 220k resistor, a led and a 9v battery. It's not a tutorial but you can just place the components like in the video, that works.
I'm novice with electronics ,that's a basic circuit.
français : led qui s'allume automatiquement dans le noir
1 LED
1 resistance 220 ohm
1 resistance 220k ohm
1 photoresistance
1 transistor BC547B
1 pile 9 volts
