Fell into Capture Card Kernal Issue and don't know how to get out

[GR0DZ1LLA]

I had a Pi3b+ running HyperHDR 19 working for years. Some stupid reason I went and updated everything and it's all busted. I have scoured the documentation, the wiki, etc, but the instructions are all over the place. Maybe I'm just getting old.

I just want to go back to my simple Pi3b+, Amazon $20 Capture Card, and 283 WS2812b pixels. I'm willing to do HyperHDR 19 again just to get it working.

Can someone just confirm what I need? I'm so confused over the version of PiOS being 32 or 64, Bookworm vs Bullseye?

What is the simplest path to getting my Pi3b+ working without the Kernal Issue that awawa-dev was trying to get resolved?

FWIW, I did a Pi4/8GB with Bookworm and the APT version of HyperHDR working and I simply could not get my "Instance" to control the pixels. When I did this with a Pi3b+ years ago, I got it working immediately.

Which OS should I write to the SD card for Pi?
Which version/release of HyperHDR?

[GR0DZ1LLA]

Should be noted that back in v19 I was using "Controller type: ws281x" and now there's a big ol' warning in v21 that says "not recommended or supported" - so I ask, in v21, when using ws2812b pixels where the data line is hooked to GPIO18 on the Pi, what controller type should I be using?

[awawa-dev]

Hi
If you try to control the LEDs via GPIO, it should still work in v21. Although that method was not recommended even for v19, both v19 and v21 still use https://github.com/jgarff/rpi_ws281x to handle it. Check your logs for errors; you might not be running it as root. Also, check out our wiki for more information regarding this GPIO driver.

We still recommend one of these boards, which are almost problem-free and even have a built-in level shifter: https://github.com/awawa-dev/HyperSerialPico?tab=readme-ov-file#recommended-boards-with-a-built-in-level-shifter

[GR0DZ1LLA]

Do these options replace the need for the Pi 3/4? I can run hyperhdr on a rp2040? What is your optimal/preferred setup? I am willing to redo my existing setup but am finding the wiki difficult to put info together.

FYI I rebuilt a Bullseye 64bit OS on a Pi3 and got v19 to work from my old history commands on my once-working box. I just have to make it run at startup.

My next test is Pi4 and to document that. Then I'm going to order whichever board you recommend based on the rp2040 (if they replace the pi3/4 need). I also have a ton of other esp8266 and esp32 boards I mess with esphome and run wled on.

So what's your "best setup" recommendation? I'll order that.

[awawa-dev]

HyperSerialPico/rp2040 is a LED serial port driver (like Adalight) and is intended to replace the older "GPIO driver". You connect it to a USB port. rpi4 is of course much better and recommended than pi3 although rpi3 should work fine with some compromises (lack of USB3.0)

[awawa-dev]

You can try esp32 boards with HyperSerialESP32 should be also fine but first inspect them to find out their UART.

still level shifter 3.3 to 5v is required but if it worked for you with GPIO on 3.3 earlier then you might be lucky. it cannot be ruled out that the problem of the lack of level shifter became active after switching to rpi4, minor differences in voltages on GPIO or changes in wiring could have caused this because in such conditions there is no safety margin.

[GR0DZ1LLA]

I figured out how to make the Pi4 work with ws281x. The common ground DO/DONT was an eye opener. Learned a lot today.

Regarding the rp2040, I'm still looking for where to purchase. Used to using aliexpress but will keep looking. Is there a diagram for how the Pi3 and the rp2040 would be wired? Would this allow me to use WLED too for the strips? That's the ultimate goal. I still want local control through, I don't want a networked setup. Any URLs or Videos would be helpful.

[awawa-dev]

One of these board with level shifter is on the Aliexpress https://www.aliexpress.us/item/3256808353024751.html but there is a great change that you will find them in similar price in the local online shops in your country. The question is: is it worth changing something now if it works?

[awawa-dev]

#320 also applied to v19 then