Raspberry Pi Forums

Gavinmc42

expose the 2d graphics api to lua That is one thing the VC4 Pi's are useful for, OpenVG works. Been trying to figure out a language that has native graphics support. Most languages handle numbers and strings, is there one that handles graphics? A built in SVG to screen function. Instead of Lua or B...

Gavinmc42

Markus has a huge collection of 3D models. Must be 10,000 hours of work there? Or he uses procedural ship generation? Either way, lots of talent and that's just one guy. Over 11,000 five-star assets Rated by 85,000+ customers Supported by 100,000+ forum members And that's just Unity, there are other...

Gavinmc42

A Raspberry Pi Pico board is not an Arduino. The first thing I did with my first Pico was install the Pico tools in Arduino. I then took some Nano HID keyboard code and compiled and loaded it onto the Pico. It just worked, took only a few minutes.. Anyone familiar with Arduino will be up and runnin...

Gavinmc42

I run a home security camera system 24/7 since 2014.
OS on the SD/uSD, vidoes on a Western Digital Purple in an externally powered USB caddy.
The Sandisk A1 uSD have been the best ones so far.

Gavinmc42

Been a few years since I used Buildroot. Seem to remember it took a weekend to learn. I only had 3B+ back then and had to increase the swap file, still took hours and a single configure issue was a recompile. First compile took 13 hours and eventually wore out my uSD card. Mike's LittleKernel stuff ...

Gavinmc42

This any good?
https://www.picoreplayer.org/

Gavinmc42

I looked at Busybox, ToyBox, Uboot, Buildroot and anything else I could find years ago https://wiki.osdev.org/Main_Page Lots of dependencies etc Baremetal C, Rust or C++ is too hard for me, DIY libs etc ;) I haven't found anything better than Ultibo for the simple single purpose Apps I use Pi's for....

Gavinmc42

I prefer PiCore for the single core Pi's if I have to use Linux.
There is a limited choice of apps so you need to search the repo.
http://www.tinycorelinux.net/13.x/armv6/tcz/

CLI image viewer feh.tcz?

I have done a lot with just shell script and Micropython in PiCore.

Gavinmc42

Depends on the libraries, the standard stuff like "blink" should be the same with maybe a GPIO number change.

Gavinmc42

What is amazing is the talent out there for the 3D models as well.
Lots of creative people with extreme dedication and love for what they do.

Gavinmc42

I used PiCore Linux which runs from ram or Ultibo which only reads it's "OS" from uSD. Both don't care about power outs. The main issue would be file corruption when writing and power goes off? I started with Python and Pygame in 2012 on Pi's, was never happy with 24/7 use with this method.

Gavinmc42

About 40% or some other large number of Pi's go into digital signage. Two outputs, two displays, one Pi. I use my Pi400's as code development platforms, two monitors is great. Collected enough official MicroHDMi cables and adapters to have unused ones. The official cable is very good value. I do agr...

Gavinmc42

Would a PicoW be a better option?

Gavinmc42

Not all USB sticks will work as PI boot devices.
Tried a few recently, used Imager to write the OS to the USB stick, shut down removed uSD and rebooted.
Not all worked.

Gavinmc42

Been running simple B+ webservers using PiCore Linux for temperature logging for years 24/7 http://www.tinycorelinux.net/13.x/armv6/releases/RPi/ I just save to timestamp named csv files and the webserver links to dygraph.js for plotting. Cron and Watch are used to run shell scripts for data capture...

Gavinmc42

The latest Raspberry OS is getting a bit slow on the single core Pi's. Alternative ways to use the old firmware. https://github.com/ultibohub/Examples/tree/master/VideoCoreIV/RaspiCam/RaspiVid/RPi I haven't tried it streaming on a ZeroW, WiFi would be the issue. Your raspivid command should work on ...

Gavinmc42

It's in Pascal but should be easy enough to convert.
https://github.com/pjde/ultibo-i2cdetec ... tector.pas

It basically checks for a response by reading the first register of each possible i2c address.

Gavinmc42

I'm having issues running a game on my raspberry pi.

What game?

Try Twister OS, it's probably the most "PC" way to run games on Pi's
https://twisteros.com/

Gavinmc42

any video entertainment display must be out of sight of the driver. Same here in Oz, was making a GPS for my media screen, cannot play HDMI will driving :( Could play video if I drove with handbrake up a little ;) USB DVD player, will the Pi's USB port give it enough power? Got a bunch of CDroms, m...

Gavinmc42

Any wind moving those branches?
Is it motion blur?

Gavinmc42

Rolling shutter or global shutter?
Most CV is done at lower res about 300 x 300 too.

Gavinmc42

Lots of learning pain, time and $$$ involved in doing this. Buy smartphone and phone mount, should do everything you want? But Pi's do have composite output, could that be fed to that screen? I have made a simple AV player with a Zero, have not tried analog output on it. It can only do Wav/h.264 fil...

Gavinmc42

Probably works better if you close one eye or are further away so there is less parallax.

Gavinmc42

I was very impressed with a USB IMX291 camera for my home Pi security camera system upgrade but it does have AE issues too. It flashes between good night time video to great night time video, very annoying. Having Libcamera support for Starvis2 will be interesting and allow for more control. Higher ...

Gavinmc42

No, sort of. Pi's are A series CPU cores, R series ARM CPUs are the Realtime ones. But a Pico and some smart PIO coding might do it. This is typically a DSP application. However one of Liz's first Pi post was about the Pi's onboard DSP? Could the VPU/QPU's to do this? According to those that know th...

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