I am trying to make a musical bell .
Mainly because of custom melody can be programmed,so it will support tunes common
in native languages
.
want to power it with 2 or 1 AA cells
I picked a simple transistor voltage booster (avoiding ICs)
without the zener the circuit gives 21V from 1.5V AA cell (inductor 470uH)
with zener 5V i should be able to drive a ATmega8 on a EDUINO (cloned barebone arduino)
http://goo.gl/iYFdLJThe atmega is the MUSICAL BELL
and added a 10second timer with Q3
My assumptions are the transistor timer Q3 is fully off so battery drain will be nano amperes
choice of atmega8 is dueto easy availability
but need to make little loud enough sound
will it be enough to drive musical arduino with a buzzer ,buzzer has to be added with transistor to make loud?