In this video, we will see how to make an automatic street light circuit using LDR and BC547 on the breadboard. With this simple dark sensor, we can control a 220v light using a relay. During the video, I have shared the complete circuit diagram.
You can replace the 10k resistor with other values to change the sensitivity of the dark sensor.

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After watching the video you can easily make the LDR darkness sensor light using BC547 at home to control a 220v light. I have mentioned all the components details in the darkness sensor circuit

Components required for the Dark Sensor
1. BC547 Transistor,
2. LDR
3. 220-ohm Resistor
4. 10k Resistor
5. LED 5mm
6. 1N4007 Diode
7. SPDT Relay 5V
8. AC Bulb 220V
9. 5V DC source or Mobile Charger
10. Breadboard

#DarknessSensor #TechStudyCell

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