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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.

Thomas BaumThomas Baum 08/17/2015 at 12:190 Comments

The 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.

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