Posts Tagged ‘LED Driver’

Modular Music Box – MAX7221

The ‘Winder’ in the MMB has a ‘clock face’ of 12 orange LEDs in a circle used to give visual feedback on which way and how much to wind the key… as well as display the ‘winding down’ of the mechanism.

While I could have managed this by using an LED per digital output on the Arduino Duemilanove clone – I thought I’d use it as an opportunity to work with and learn more about LED drivers.

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