Appearance and function match the final product, but is made with different manufacturing methods.

Looks like the final product, but is not functional.

Demonstrates the functionality of the final product, but looks different.

A prototype is a preliminary model of something. Projects that offer physical products need to show backers documentation of a working prototype. This gallery features photos, videos, and other visual documentation that will give backers a sense of what’s been accomplished so far and what’s left to do. Though the development process can vary for each project, these are the stages we typically see:

These photos and videos provide a detailed look at this project’s development.

We are bringing you the zero version of our wildly popular Audio Injector Raspberry Pi sound card. The sound card which is input capable, output capable and is ready for your to solder on an electret microphone - as simple as that.

Audio Injector Zero Sound Card for the Raspberry Pi

Previous Kickstarter Projects :

The audio injector pi sound card : successful and shipped

The audio injector octo sound card for the Pi : successful and shipped

Audio Injector Zero - IO boards - all configurations : RCAs, Big stereo jack, Little stereo jack

Standard inclusions for a single sound card :

The main sound card as shown. Two of the breakout PCBs shown (unpopulated). Two connector cables and 4 headers for connecting the breakout boards to the main sound card PCB shown. Including also the achieved stretch goals (see below).

Audio Injector Zero Sound Card - Each sound card comes with these extras (including an electred microphone - not shown).

Stretch goals achieved (you will get these) :

#1 at $4 500 : 2x RCA (red+white) RCA header for a breakout board. You can use it for inputs or outputs - you can attach it to one of the stereo headers - (not assembled)

#2 at $7 000 : 2x RCA (red+white) RCA header for a breakout board. You can use it for inputs or outputs - you can attach it to one of the stereo headers - (not assembled)

#3 at $9 500 : An electret microphone to fit the empty footprint (not assembled)

This includes everything you need to get yourself hooked up : The sound card, two IO boards, two cables, four headers and two RCA blocks.

Stretch goals to get (you could get these) :

#4 at $12 000 : We supply one potentiometer (not assembled)

#5 at $14 000 : We supply the second potentiometer (not assembled)

Audio Injector Zero Sound Card for the Raspberry Pi

Specifications :

Direct Inputs : Unpopulated Connectors (stereo)

Direct Outputs : Unpopulated Connectors (stereo)

Potentiometer Inputs : Unpopulated Connectors and potentiometer (stereo)

Potentiometer Outputs : Unpopulated Connectors and potentiometer (stereo)

Headphone : Powered headphone connector (plenty loud). Populated

Microphone : Electret ready, just populate.

Sample rate : 96 kHz, 32 bit (with 24 bit ΔΣ DACs and ADCs)

Jitter control : Crystal locked, codec master, low jitter (Crystal on the card).

Hardware: Works with the Raspberry Pi2, Pi3 and Zero

We need your input

This is a unique live project where you get to have input on the live re-designs. We are up to design number 6 (with number 7 this week). We have changed from RCA headers to 3 pin 0.1 inch headers. Not only one, but the possibility of tapping off the input/output lines directly or after potentiometers for hardware volume control. We have also added a headphone header. Do you want something different ? Then please pledge and drop comments.