Adafruit ItsyBitsy RP2040 and multi segemnt.

[DariBer]

Is there descrption/guide of to "build two segments facing in opposite directions" when using Adafruit ItsyBitsy RP2040?

how to wire and what firmware, how to config and so on.
I'm building now to a big 98" TV, so I assume it will work best with multi segement

[awawa-dev]

For multi-segment setups, it's better to use an Adafruit Feather RP2040 Scorpio, or any ESP32/RP2040 with an external level shifter.
What exactly is unclear in the config file when building custom firmware? The wiring diagram for Scorpio is shown in the main project image. Note that for multi-segment configurations, the Pico uses the GPIO pin immediately following the one defined for LED output - the LED connection ia analogue to esp32, just different pins.

[DariBer]

Not sure if I'm blind or not, but I can't find the wireing image when using Scorpio that you wrote above. Maybe you can link to it?

But the PINs out from Scorpio to the LEDs (Data in on SK6812W) is it GPIO16 +1 (GPIO17) from the Scorpio?

I don't need to build my own firmware, GPIO 16 +1 is already included in the firmware that is in downloads?

Do I need to do any different when I configure the HyperSPI in HyperHDR that I use multi segment? Can't find anything of that in the HyperHDR

[awawa-dev]

Please stay focused! Otherwise, you'll end up frustrated because it's very easy to make a mistake with HyperSPI. The real-life setup photo showing the actual wiring for Scorpio/RPi is literally on the main page under 'See how easy it is to connect Raspberry Pi Pico (rp2040) to Raspberry Pi 5 using SPI' - you can't miss it.

Scorpio supports a wide range of 5V LED data outputs from GPIO 16 to 23. Simply select your starting output pin (between 16-22) in the configuration; the next consecutive GPIO will automatically be used for the second segment once you enable the multi-segment option in the firmware.

EDIT: SPI GPIO you must also set custom SPI for Scorpio according to the manual on the main page:
SPI MOSI->MISO is GPIO28 (A2)
SPI SCK is GPIO26 (A0)
SPI CHIP_SELECT is GPIO29 (A3)
SPI interface is spi1

you set them in this config section for Pico in HyperSPI:rp2040/CMakeLists.txt (replace these following values)
set(OUTPUT_SPI_DATA_PIN 4)
set(OUTPUT_SPI_CLOCK_PIN 2)
set(OUTPUT_SPI_CHIP_SELECT 5)
set(OUTPUT_SPI_INTERFACE spi0)