Unofficial hardware

1 Displays

• Adafruit PiTFT Touchscreen 2.8"
• PiTFT Clonic versions
• OzzMaker PiScreen 2
• WaveShare Displays with GPIO touch-device
• Official Raspberry Pi Foundation 7" Display
  • https://www.raspberrypi.org/products/raspberry-pi-touch-display/
  • USA https://www.mcmelectronics.com/product/83-16872
• Generic HDMI Displays with USB mouse-like touch-device

2 Audio interfaces

2.1 Tested good

2.1.1 Without audio input

• HifiBerry
  • HifiBerry DAC+ => hifiberry-dacplus
  • Hifiberry DAC+ Pro => hifiberry-dacplus
  • HifiBerry DAC+ Lite => hifiberry-dac
  • HifiBerry Amp => hifiberry-amp
  • HifiBerry Digi => hifiberry-digi
• IQAudio
  • IQAudio DAC+ => iqaudio-dacplus
  • IQAudio DAC => iqaudio-dac
• AudioInjector
  • AudioInjector Hat => audioinjector-wm8731-audio

2.2 Tested bad

• Built-in Raspberry 1/8" audio jack. The onboard RBPi soundcard is not suitable at all. It's PWM based (no DAC!) and only 10 bits of resolution. Also, it has a huge latency. Forget getting a decent result with it. You have to use a decent soundcard (with a DAC!) for RBPi.
• USB audio interfaces (latency problems)

2.3 Untested

• Sparkfun JustBoom HAT
• Built-in Raspberry HDMI audio
• Durio sound http://www.gravitech.us/dusoulsoqufo.html
• ALLO – PIANO HI-FI DAC https://volumio.org/product/allo-piano-hi-fi-dac/
  • https://volumio.org/product-category/dac/i2s-dac/
• Mamboberry https://www.collybia.com/product/mamboberry-ls-dac/
• Chinese I2C
  • Board Mikroe-506 Proto Audio Codec WM8731 https://aliexpress.com/item/Module-BOARD-MIKROE-506-PROTO-AUDIO-CODEC-WM8731-development-BOARD/32759758896.html?spm=a2g03.10010108.1000016.1.3c744047A0NIyA&isOrigTitle=true
  • Wm8731 module audio module mcu fpga music https://aliexpress.com/item/FREE-SHIPPING-Wm8731-module-audio-module-mcu-fpga-music/1674210328.html?spm=a2g0s.8937460.0.0.meWV7T
  • UDA1380 Based on I2S Interface https://aliexpress.com/item/UDA1380-Board-UDA-1380-Module-Stereo-Audio-Codecs-Decoder-Based-on-I2S-Interface/700622589.html?spm=a2g03.10010108.1000016.1.3c744047Zan6Wc&isOrigTitle=true
• Chinese USB
  • Mini USB DAC PCM2704 https://aliexpress.com/store/product/Newest-Raspberry-Pi-Audio-Mini-USB-DAC-PCM2704-high-quality-sound-card-with-Texas-Instruments/113442_1880987504.html