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Sat Nov 24 20:50:04 CET 2007

crap.. transistor won't switch off

using 78L05 regulator for the chip, but wanted to drive the speaker
straight from the 9V battery. problem is, i can't switch off the
transistor if i'm not using open drain output and a pull-up
resistor..

so i guess just stick with connecting the speaker to the regulator
output, and up the regulator a bit... tho it's 100mA, maybe it can
take a bit of peak current?

do i have everything now? i guess.. maybe an on/off switch, but that's
easy to do later. also, if possible, add a connector for the led, so
it can be brought out to the box.




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