Electronics enthusiasts may be interested in a new open source Raspberry Pi Zero clone which has been created and is now available as the VoltaStream Zero works brings with it Chromecast-like audio quality.
The VoltaStream Zero many PC is priced at $52 or €50 and is a lot more expensive than the Raspberry Pi zero which is priced at just $5. The audio streaming module runs Linux with built-in high quality DAC, digital TOSLINK output and full-sized USB A connector as well as micro USB input and wireless connectivity.
VoltaStream ZERO is the perfect choice for streaming your music. It includes a high quality analog output as well as a optical TOSLINK transmitter. For smallest footprint the optical audio output is directly integrated into the 3.5 mm line-out jack. There is also a full-sized USB-A connector where you can easily connect the included and free-of-charge USB WiFi dongle.
VoltaStream ZERO is powered via 5V from a microUSB connector that can also act as a USB gadget device. Furthermore it is fitted with a microSD connector from which it will boot one of our supported Linux distributions. It also comes with an integrated real-time clock as well as a dedicated On/Off button handler.
It measures only 65 x 30 mm and features a 40 way pin-header with access to 28 GPIO’s. The layout is similar to the Raspberry Pi ZERO but the position of the connectors were optimized for audio usage. The functions of the GPIO’s are fundamentally the same but might differ a little in detail. We are targeting to get the common audio hardware add-ons (HAT’s) available for Raspberry Pi working with our board, too. For more details please see the System Reference Manual available from the Documentation tab.
We believe in openness so VoltaStream ZERO is fully open-source! All KiCAD schematic and layout files are available under the CC BY-NC-ND 3.0 license. Furthermore the board is designed + manufactured in Germany and we are providing a custom Linux distribution especially created for this hardware. If you ave a special problem to solve never hesitate to contact us. We are here to help you where we can!