Need help with project: It's basically a ATtiny85 or similar chip circuit that produces tones through a speaker that climb in volume (and maybe pitch too) in a sequence with a pauses between repeating the cycle. Each tone would be about 1 second long, with a 1/2 or perhaps 1 second pause between them, climbing in volume with each tone until a 8 or 10 second pause before repeating the cycle of tones. I am not familiar with ATtiny85 chip and I could use a few tips with the circuit and coding. Preferably it would be powered by a 3.7v LiPO battery, or elsewise two CR2032 coin cells. Minimized complexity is a must.
Thanks!
create a sketch on an UNO or one of the 'full size' arduinos.
get it to work
then start cutting the waste and see what comes out the other end.
it almost sounds like you could do that with a FOR loop and some timing
it would be interesting to see if you can get it to work as you describe with under 10 lines of code in the Voidloop()
once you have have it working on the Arduino UNO or some such, it would be easy to port to the ATTINY85
See
http://playground.arduino.cc/Code/ToneAC
However I'm not sure if it would work on the Tiny series, as it may use a time they don't have
But its still worth a look.