hi! yes. the speaker is connected to the PWM output of the attiny2313 through a transistor. the playback is 8bit @ 32kHz. i used 2 push-pull drivers connected to form an H-bridge and an LC low pass filter in the final design.
so the simplest version is like attiny2313 - FET - speaker. :)
would it be possible to send the schematic and programm to me please?
242ta 1 week ago
Any chance you still have the schematic and source code? I have very similar project I'm trying to build, which uses an ATMega328.
dachew57 1 year ago
PeterIsza
thats very nice project work,
can you send schmatic and programm to me please.
gonioelect 1 year ago
wow! I've been looking for something like this! Did you design this circuit yourself?
brandon9271 2 years ago
hi! yes. the speaker is connected to the PWM output of the attiny2313 through a transistor. the playback is 8bit @ 32kHz. i used 2 push-pull drivers connected to form an H-bridge and an LC low pass filter in the final design.
so the simplest version is like attiny2313 - FET - speaker. :)
PeterIsza 2 years ago
nice. can u show the circuit?
Kennyjog 3 years ago