Questions about wiring RP2040 Scorpio

[FineVisionz]

I am using a Feather RP2040 SCORPIO and SK6812 SPI RGBW 5V strips. I am using a dedicated Dell Mini PC to run HyperHDR.

I downloaded the "Adafruit_Feather_RP2040_Scorpio.zip" and uploaded the "HyperSerialPico_sk6812Neutral.uf2" to the RP2040.

I wired it up as pictured utilizing GPIO2.

I have configured HyperHDR exactly as it states here.

I can't get it to work. Occasionally the first LED on the strip will light up with a random static color. Otherwise all the LEDs remain off.

[awawa-dev]

Take another closer look at the instructions: Scorpio, with its dedicated firmware, doesn't use GPIO2 because the outputs (opposite the USB port on the other side) handled by its level shifter have a different address. Therefore, the pinout is also wrong.

[FineVisionz]

Does this mean I need to change "CMakeList.txt" to set a different pinout? Such as GPIO16?

If I need to edit "CMakeList.txt", is there a write up on how to do so?
Thanks for all the help thus far!

[awawa-dev]

Just read the manual on the main page. It's everything explained.

[FineVisionz]

Thank you so much, I got it working!

One more question. Is it possible to use a second LED strip with one RP2040 Scorpio? My first LED strip is going under my TV stand, and the second one I want to put around my TV.

I figured I would wire the second strip to GPIO17 and make a new instance in HyperHDR. I am just not sure how HyperHDR would know to send the two different signals to GPIO16 (under TV stand strip) and GPIO17 (around TV strip)

Once I complete this project, I plan to make a write-up to help other people like me who are less DIY savvy complete similar projects!

Thank you!

[awawa-dev]

I'm glad it worked. I think it's doable: HyperSerialPico will essentially do all the work, as long as you compile it correctly with REVERSE=OFF (edited) and with segment breaks after the first (and longer) strip. It will address the appropriate LEDs on GPIO16 or GPIO17. You'll have some fun with HyperHDR, as the LED geometry wizard doesn't support such configurations out of the box, but: if you've already configured the first segment on the TV, in the second instance, configure what the second strip (the one under the TV) should look like. Then copy its JSON configuration (only LEDs area definitions) and paste it into the first instance's JSON configuration in the advanced settings to join them (ask ChatGPT, Copilot, or Gemini to verify how you're connecting them if you're not familiar with JSON format; you can even attach files there). Later, you can delete the second instance and everything will work on one, and HyperHDR will see both strips as one continuous "virtual" strip.

[awawa-dev]

Sorry, REVERSE must be OFF of course.