Thomas BaumThe circuit is very simple. Every audio channel (Data, Clock) has a filter and is converted to a digital signal by a comperator.
The sparrow is designed for a breadbord.All pins from the ATtiny13a are contactable by the board-connector.
System design
A project log for Cheepit: Sparrow (dev boards for smartphones)
The "Cheepit" project deals with the development of web based services for programming AVR microcontrollers with smartpones or tablets.
Discussions
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