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I²S Crosstalk

The current animatronic ear prototype has a central control board that processes audio from four microphones. These microphones send audio through the I²S protocol, which is a fairly simple digital serial protocol for audio.

Ear Controller: v0.1 Review, v0.2 Design

I've finished testing version 0.1 of the ear controller prototype board and made significant progress on version 0.2. Here is a summary of the results.

Version 0.1

The three power supplies worked well. The TI LMZ14203H, using a design generated by the WEBENCH Power Designer, produced a solid 6 volt supply from the 12 volt input. It handled sudden servo movements without major…