Showing the sound quality and methods of recording/playback on the prototype.
Still needs a better speaker and some batteries, as well as the selection method!
Not bad though well done, like the pull string, will the light stay on whole time? I wish it could record little longer…….
Great protoype! which IC is on the board?
It’s the ISD1820 chip on this ‘voice record module’: http://www.elecfreaks.com/wiki/index.php?title=Voice_Record_Module_-_ISD1820
The microphone was removed and replaced with a similar one on short wires, and the speaker is driven by a small amplifier: https://www.sparkfun.com/products/11044
Nic has plans to make a microphone preamp circuit out of an opamp, but that’s not been done yet.
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