Hello everyone,
We are a small engineering company «ChipDip.» has released three complete uHAT projects for the Raspberry Pi.
These are expansion boards for high quality sound.
The driver and overlay for Raspberry Pi OS is called ChipDip DAC
To build a streamer, you can use any Raspberry Pi. The microcomputer is installed on a 40-pin audio card connector. As software, use any player or OS image that is recorded on a microSD card for Raspberry Pi. Operating systems automatically detect the ChipDip DAC audio card and configure sound output to it. In some players, you may need to select ChipDip DAC as the audio output device.
All files just posted on PCBWAY.
We really want you to make any of the projects and share your comments.
I will answer any questions and support you in assembly and programming.
The first project is DSP Machines 1.
DAC, audio processor, amplifier for all Raspberry Pi. ADAU1701 + TPA3255.
PCBway.
ChipStudio
SigmaStudio & ChipStudio projects DSP Machine1
Few photos.
The second project is DSP Machines 2.
DAC, audio processor, for all Raspberry Pi. PCM5242.
PCBway.
ChipStudio
PurePathStudio & ChipStudio projects DSP Machine2
Few photos.
The third project is DSP Machines 3.
DAC, audio processor, for all Raspberry Pi. ADAU1452 audio processor and AD1934 DAC.
PCBway.
ChipStudio
SigmaStudio & ChipStudio projects DSP Machine3
Few photos.
We are a small engineering company «ChipDip.» has released three complete uHAT projects for the Raspberry Pi.
These are expansion boards for high quality sound.
The driver and overlay for Raspberry Pi OS is called ChipDip DAC
To build a streamer, you can use any Raspberry Pi. The microcomputer is installed on a 40-pin audio card connector. As software, use any player or OS image that is recorded on a microSD card for Raspberry Pi. Operating systems automatically detect the ChipDip DAC audio card and configure sound output to it. In some players, you may need to select ChipDip DAC as the audio output device.
All files just posted on PCBWAY.
We really want you to make any of the projects and share your comments.
I will answer any questions and support you in assembly and programming.
The first project is DSP Machines 1.
DAC, audio processor, amplifier for all Raspberry Pi. ADAU1701 + TPA3255.
PCBway.
- Compatible with all Raspberry Pi
- Compatible with SigmaStudio and ChipStudio software for audio processor rebuild
- Official support for RaspberryPi OS / Volumio3 / rAudio1 / Album Player / OpenELEC / Manjaro OS / MoOde and more
- DSP ADAU1701, TPA3255 amplifier chip for best sound quality.
- Output Power 2х120 W
- Audio output connectors: two pairs of screw terminals (left and right)
- Built-in EEPROM for automatic OS configuration (with write protection).
- Automatic frequency switching according to I2S input signals.
- Sample rate and bit depth range from 44.1kHz/16bit to 192kHz/32bit
ChipStudio
SigmaStudio & ChipStudio projects DSP Machine1
Few photos.
The second project is DSP Machines 2.
DAC, audio processor, for all Raspberry Pi. PCM5242.
PCBway.
- Compatible with all 40-pins Raspberry Pi
- Compatible with PurePathStudio and ChipStudio for audio processor rebuild
- Official support for RaspberryPi OS / Volumio3 / rAudio1 / Album Player / OpenELEC / Manjaro OS / MoOde and more.
- High quality PCM5242 DAC for the best sound quality.
- Audio output connectors: 2 x XLR (left and right)
- Built-in EEPROM for automatic OS configuration (with write protection).
- Automatic frequency switching according to I2S input signals.
- Sample rate and bit depth range from 44.1kHz/16bit to 192kHz/32bit
ChipStudio
PurePathStudio & ChipStudio projects DSP Machine2
Few photos.
The third project is DSP Machines 3.
DAC, audio processor, for all Raspberry Pi. ADAU1452 audio processor and AD1934 DAC.
PCBway.
- Compatible with all Raspberry Pi
- Compatible with SigmaStudio and ChipStudio software for audio processor rebuild
- Official support for RaspberryPi OS / Volumio3 / rAudio1 / Album Player / OpenELEC / Manjaro OS / MoOde and more.
- High quality ADAU1452 audio processor and AD1934 DAC.
- Audio output connectors: 2 x XLR (left and right), SPDIF, Coaxial
- Built-in EEPROM for automatic OS configuration (with write protection).
- Automatic frequency switching according to I2S input signals.
- Sample rate and bit depth range from 44.1kHz/16bit to 192kHz/32bit
- Color indication of sampling rates
ChipStudio
SigmaStudio & ChipStudio projects DSP Machine3
Few photos.
Attachments
Last edited:
Just saw your post. These indeed look impressive and I look forward to exploring them more. Thanks for sharing with the community.
Member
Joined 2018
Updated of DSP Machine 3
Changes:
1. At the AD1934 output, two OPA1656 are installed instead of two OPA1632.
2. On the control panel, all LEDs are addressable - Neopixel type
3. All Raspberry Pi GPIO on the motherboard with a pitch of 2.54 mm
4. Improved motherboard design
External view in the G764 Gainta Industries case. Painted black.
External view with open case.
A fan is attached underneath the Raspberry Pi.
dtoverlay=gpio-fan,gpiopin=23,temp=65000
The control panel is attached to the motherboard.
On the control panel
Three sensors: SuperBass, Magic, Mute
Potentiometers: Low frequency tone, High frequency tone, Balance, Volume
Four LEDs: SuperBass, On, Magic, Mute
The sensor contacts are connected to the pads on the outer panel via mounting screws.
The outer panel is made of 3mm textolite. On the inside there is a 2mm deep milling for LEDs.
SigmaStudio
The project is not complicated, but pay attention! Automatic EQ is installed for possible room correction.
The ChipStudio project is a repeat of the SigmaStudio project.
All files are open source, do what you want!
In Raspberry Pi OS and other players like Volumio, select ChipDip DAC audio output.
KiCad project
SigmaStudio projects
ChipStudio projects
Firmware for STM32L433 microcontroller
ChipStudio Firware
ID Firmware for ChipDip DAC
Color indication of sampling rates
Changes:
1. At the AD1934 output, two OPA1656 are installed instead of two OPA1632.
2. On the control panel, all LEDs are addressable - Neopixel type
3. All Raspberry Pi GPIO on the motherboard with a pitch of 2.54 mm
4. Improved motherboard design
External view in the G764 Gainta Industries case. Painted black.
External view with open case.
A fan is attached underneath the Raspberry Pi.
dtoverlay=gpio-fan,gpiopin=23,temp=65000
The control panel is attached to the motherboard.
Three sensors: SuperBass, Magic, Mute
Potentiometers: Low frequency tone, High frequency tone, Balance, Volume
Four LEDs: SuperBass, On, Magic, Mute
The sensor contacts are connected to the pads on the outer panel via mounting screws.
The outer panel is made of 3mm textolite. On the inside there is a 2mm deep milling for LEDs.
SigmaStudio
The project is not complicated, but pay attention! Automatic EQ is installed for possible room correction.
The ChipStudio project is a repeat of the SigmaStudio project.
All files are open source, do what you want!
In Raspberry Pi OS and other players like Volumio, select ChipDip DAC audio output.
KiCad project
SigmaStudio projects
ChipStudio projects
Firmware for STM32L433 microcontroller
ChipStudio Firware
ID Firmware for ChipDip DAC
Color indication of sampling rates