Basic project DIY | Switching through BC 547 Transistor | LDR darkness sensor on a breadboard!
This video is a simple yet basic project regarding an LED darkness sensor using BC 547 transistor, which automatically lights up due to darkness and gets off as soon as the brightness appears!
These circuits are used in traffic lights as well! BC 547 transistor is used as a switch for automatic on/off! Equipment required: LDR (Light Dependent Resistor), L.E.D (Light Emitting Diode), 100k ohm resistor, 9v battery with battery clip, BC547 Transistor, Breadboard, and some wires.
A 'Dark Sensor' is a device which senses the presence of darkness, and reacts accordingly. As soon as you cover the LDR or keep the dark sensor in a dark room without lights...the L.E.D will glow, and vice versa.
*1 bc547 transistor: https://amzn.to/2LMp2kk
*1 LDR: https://amzn.to/2LKEnSw
*1 1k resistor: https://amzn.to/3g5RNXu
*1 led: https://amzn.to/2ZiDKru
*1 100k resistor: https://amzn.to/3g5RNXu
*breadboard: https://amzn.to/3cTttWQ
*1 9v battery : https://amzn.to/3cRPntm
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