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PhotonVision / photonvision

PhotonVision is the free, fast, and easy-to-use computer vision solution for the FIRST Robotics Competition.
https://photonvision.org
GNU General Public License v3.0
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Create build for Limelight 3 #842

Closed srimanachanta closed 8 months ago

srimanachanta commented 1 year ago

Currently, users can use a Limelight 3 using the following steps. A build should be generated along with the rest for Limelight.

via @mcm001 steps

  1. flash our stock Pi image (NOT limelight)
  2. connect to the internet
  3. run sudo wget https://datasheets.raspberrypi.org/cmio/dt-blob-cam1.bin -O /boot/dt-blob.bin
  4. edit /boot/config.txt and uncomment dtoverlay=ov5647
marshallmassengill commented 1 year ago

So I finally managed to get this working with the LL3 and the minimal rpi 32bit image. I could not get it working with the 64 bit version yet (I need to retry it now). General process was:

  1. Using the https://github.com/raspberrypi/usbboot tool
  2. Putting the device into a mode where I could use the Raspberry Pi Imager tool to send it a custom image with ssh enabled and password/locale set
  3. Connect it to an internet connection
  4. run sudo wget https://datasheets.raspberrypi.org/cmio/dt-blob-cam1.bin -O /boot/dt-blob.bin
  5. edit /boot/config.txt and add dtoverlay=ov5647
  6. The camera will show up as a libcamera and not a legacy camera

This definitely needs more testing.

mcm001 commented 1 year ago

With a 32 bit OS, I think you would need to recompile our libcamera driver too, right?

srimanachanta commented 1 year ago

We should add something to docs at the minimum for next season about this

marshallmassengill commented 1 year ago

I managed to get this working with the 64 bit pi OS finally. It's definitely just as described - however I could not get this working with the legacy camera stack, only libcamera. Also of note, the LL3 will take the OV9281 global shutter cameras sold by waveshare - just modify the config.txt to use it.

mcm001 commented 1 year ago

I managed to get this working with the 64 bit pi OS finally. It's definitely just as described - however I could not get this working with the legacy camera stack, only libcamera. Also of note, the LL3 will take the OV9281 global shutter cameras sold by waveshare - just modify the config.txt to use it.

Awesome! Yeah, I didn't have success with the legacy camera stack either.

If you have the bandwidth to either write up steps (if they're different from the above) or PR a generator script to our pi-gen repo that would be much appreciated :)

marshallmassengill commented 1 year ago

It's going to take a bit but we are going to write up something and I'll link it here. Gotta say, the camera stack for the pi is a complete mess and I'm hoping it gets better with libcamera now.

mcm001 commented 10 months ago

It's going to take a bit but we are going to write up something and I'll link it here. Gotta say, the camera stack for the pi is a complete mess and I'm hoping it gets better with libcamera now.

@marshallmassengill any chance you’ll get around to this before kickoff? Or was it literally just flash rpiOS and download the new dt-blob.bin?

marshallmassengill commented 10 months ago

That was pretty much it. We did actually publish the images we made here: https://www.chiefdelphi.com/t/the-zebracorns-behind-the-stripes-design-code-and-build-blog-2023-2024/440094/35?u=marshall

mdurrani808 commented 8 months ago

Closed by #1166.