The Codec Zero is a Raspberry Pi Zero-sized audio HAT that delivers bi-directional digital audio signals (I2S) between a Raspberry Pi and the Codec Zero’s on-board Dialog Semiconductor DA7212 codec, and allows you to use a variety of input and output devices.
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.
The Codec Zero is compatible with any Raspberry Pi computer that has a 40-pin GPIO header.
Please note we are currently selling the IQaudIO branded version of this product (black PCB).
Features
Power LED
Additional green (GPIO23) and red (GPIO24) LEDs for status
Tactile button (GPIO27) for user input
Built-in mono electret microphone (MEMS)
HAT EEPROM write-enabled
Supports
Additional external mono electret microphone via 3.5mm panel-mounted barrel socket
1.2W 8Ω mono speaker via panel-mounted screw terminals
Stereo input and output channels, including external phono (RCA) sockets, via AUX IN and AUX OUT pins
Specifications
Form factor: 65 mm × 31 mm
Performance: High definition 24-bit 96kHz Dialog Semiconductor DA7212 digital audio codec (DAC)
Input power: Supplied by Raspberry Pi through the 40-pin GPIO header. No external power source required
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