I have tried with a few different units (I have ordered a few) of PirateAudio Headphones, and here is my conclusion:
With the same microSD card, the OLED display works on:
- RPi2 Model B V1.1 (2014) working
- RPi3 Model B+ (2017) working
- RPi4 Model B (2018) working
- RPi3 Model B V1.2 (2015) not working
Note: the DAC itself and the buttons work on all of them.
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I’m using a custom image, based on RaspiOS
2021-05-07-raspios-buster-armhf-lite.zip. -
/boot/config.txt:dtoverlay=hifiberry-dac gpio=25=op,dh dtparam=spi=on dtparam=i2c_arm=on -
pip install st7789, and then I tried the example st7789-python/scrolling-text.py at master · pimoroni/st7789-python · GitHub
On RPi 3 Model B V1.2, I can see the backlight is on. But no image is displayed.
Everything works fine on RPi2, RPi3 B+, Rpi4 though.
Anything specific to RPi3 Model B V1.2?