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Friday, 11 April 2014

Loud Beeper LM386 Stripboard Veroboard Layout

My gran is ill and is staying with me so I wanted to make a little but loud alert beeper in case she's not well in the night and needs to get my attention.
I just roughly followed the schematic from the LM386 datasheet HERE for the squarewave oscillator

I used a little laptop speaker and it works very well. remember - the bigger the speaker - the louder it will be.

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