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Well I would check and make sure the piezo itself is working. The one I have is rated for 5v so simply connect the positive side to 5v and the negative to ground. It should produce a sound. If that works than there is probably something wrong with your program or original wiring.
The peizo works hooking it up straight to the 5v supply? Maybe you need a transistor in there to suplement some of the current if the micro can't source/sink it by itself?
Hello! Was wondering if anyone could help give an overall idea of how to implement a tach with a 16F628 in asm.
As of now, I have four 7-segments hooked up and multiplexed with a TMR2 interupt to update each digit at about 6ms. (just reduced it down till it didn't flicker) I have a...
lm386 circuit
hello. i'm currently bread boarding a 386 amp circuit and i'm having a problem. I am trying to amplify the signal from my casset player to a small 8ohm speaker. I can faintly hear some sound coming from the speaker, but its very faint. (i'm also getting some kind of...
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