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555 timer radio
DIY Laser Tag System (Revamped)
Simple OP Amp radio
DIY Laser Tag System (Microcontroller verison)
I completed the curcuit but the led doesnt light up on pin 3.. instead it lights in pin 4 and pin 2.. also the circuit doesnt responds to an external lazer light ..
College budget, customizable, and simple table/stand
can we use a 8ohm speaker instead of piezospeaker
Unseen burglar alarm.
Security System Power Saver
How to Make an Auto-Hacking USB Drive
41 LED Flasher Circuit using 555 IC
Turn your VCR into an RF or A/V Transmitter
$5 Mini USB Fridge!
How to hack Telnet
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