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Hey guys , In this project I am going to show you how to make a dark sensor using a single transistor and some few resistors in just ...
Parts:- 1) 1x BC547 transistor 2) 1x 220 k resistor 3) 1x 330 ohms resistor 4) 1- small perf board 5) 1x led (any colour ) 6) wires ...
solder the transistor on the perf board and solder one wire of the ldr to the emitter and other to the base , solder the negative wire of the ...
I have also used a SPDT switch it is optional I have used to pin headers as the connectors for the power .
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