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
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.