Codec Zero is a Raspberry Pi Zero-sized board but it also includes the HAT EEPROM allowing for auto-configuration of the Linux environment if needed. It is the same size as a Raspberry Pi zero but designer for audio signal input and output processes. It supports a range of input and output devices from built-in MEMS microphones, mono Electret microphones,s or mono speakers (1.2W 8Ω).The Codec Zero delivers bi-directional digital audio signals (I2S) between the Raspberry Pi and onboard Dialog Semiconductor DA7212. It also has GREEN (GPIO23) and RED (GPIO24) LEDs, that can be used for status and a tactile button (GPIO27) that can be used to start an event. The Codec Zero makes a great starting point for a walkie-talkie / intelligent doorbell, vintage radio hack, or Smart-type speaker.Features:High-performance 24-bit audio codec.Supports common audio sample rates between 8-96kHz.Built-in MEMS microphone (Mic2).Mono Electret microphone (Mic2 left).Automatic MEMS disabling on Mic2 insert detect.Stereo auxiliary input channel (AUX IN) – PHONO/RCA connectors.Stereo auxiliary output channel (Headphone / AUX OUT) – 3.5mm Stereo jack.Flexible analog and digital mixing paths.DSP for ALC (Automatic Level Control).5-band EQ (Equalisation).No soldering is required.Mono line-out / mini speaker driver: 1.2W @ 5V, THD<10%, R=8Ω.Package Includes:1 x Raspberry PIIQ Audio Codec Zero
