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saturnX
- 11th October 2005, 17:38
hi guys.. have no idea where this post should be so thought it'd better be in the off topic then later move to schematics. ;) have you ever gone into one of those gift shops and find a birthday card that allows you to record 10-12secs of your voice to personalise the card. i saw one recently and that really got me thinking, what if i could do one of my own and started investigatin on the net and posting a thought here. Does anyone know what type of IC they use for this and also which IC can be used to store a melody (would u say its a midi file?) like those birthday cards with the birthday song when you open it. thoughts and feedback would be much appreciated :)

Luciano
- 11th October 2005, 17:55
Hi,

Theory of operation.

AVR335: Digital Sound Recorder with AVR and DataFlash
http://www.atmel.com/dyn/resources/prod_documents/doc1456.pdf

Source code:
http://www.atmel.com/dyn/resources/prod_documents/avr335.zip

Best regards,

Luciano

saturnX
- 11th October 2005, 18:06
hi Luciano.. that was quick! thanks for the links. will check it out tonite and plan for my next part of the project to go with the LED one that i mentioned in the schematics forum. cheers!


@EDIT: oh by any chance would you know how much the AVR335 ic would cost? so i know what to expect when i pop into the electronics shop.

Luciano
- 11th October 2005, 18:44
The AVR335 is an application note how to build a Digital Sound Recorder
with a microcontroller and a flash memory.

Luciano