Overview
Raspberry Pi Codec Zero is an audio add-on board compatible with any Raspberry Pi
computer that has a 40-pin GPIO header, and is designed around the convenient form
factor of Raspberry Pi Zero. It delivers bi-directional digital audio signals (I2S) between
Raspberry Pi and its own onboard Dialog Semiconductor DA7212 codec. Codec Zero
allows you to use a variety of input and output devices, such as the built-in MEMS
microphone and external mono electret microphones, as well as 1.2W 8Ω mono speakers.
It does not require external power, and connects directly to Raspberry Pi’s GPIO header
with no need for soldering or cables.
With features such as programmable green and red LEDs, plus a tactile button for user
input, Codec Zero makes a great starting point for audio projects such as a walkie-talkie,
intelligent doorbell, smart speaker, or vintage radio hack.