Flashing Beeps. Beginner’s Trial 9


Just a Fun. Make this Beeper using a Multicolour LED. The flashing Multicolour LED gives different colours which changes slowly as well as fast. This circuit gives beautiful colour pattern along with beeps in varying tones. Try and show it to your friends.
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Keyhole Locator. Beginner’s Trial 8


Fix this tiny White LED lamp near the door lock to locate the keyhole in darkness. It gives sufficient light to lock/unlock the door. It is  a short duration timer which turns on the White LED by a press and after a 1 minute it automatically turns off.

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