Hello friends, today I will tell you how you can make your own private secret remote control door lock system, it is very easy to make, for this we will need some electronic components.
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12v Relay – https://amzn.to/3mQHoVa
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10k Resistor – https://amzn.to/3F1Cf3w
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3v Mini Battery – https://amzn.to/3IvGqGA
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BC547 Transistor – https://amzn.to/2VPUF5s
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12v Solenoid Lock – https://amzn.to/3xWy1J7
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IR LED + Photo Diode – https://amzn.to/3PfMoxv
This is its circuit diagram –
This is the full video of how we made it.
If you have any question, suggestion or you want to give feedback related to this, then you must comment on us, thank you.