firmware VS miniMACRO5

the usual error is the image was made before the 8gb pi4 was released so is compatible with the 1,2 and 4gb models only without updating - for this error you can grab the latest boot file versions (kernel7l.img, start4.elf and the fixup4.dat are required for pi4) from here - https://github.com/raspberrypi/firmware/tree/master/boot - they go into the /boot partition of the microsd/usb/ssd overwriting the old versions.

But oddly enough, they don't support some screen resolutions: https://github.com/raspberrypi/firmware/issues/1202#issuecom...

i went with the classic, you just need their special boot firmware (everything but the kernels, dtbs and overlay folder)

USB3 and 2.4 GHz Wifi · Issue #1430 · raspberrypi/firmware

OK for anyone else experiencing this problem - seems to be due to a breaking change in Raspberry Pi OS! - https://github.com/raspberrypi/firmware/issues/1795

RetroArch can switch resolution like you said (https://github.com/libretro/RetroArch/pull/11590), and this fixes the bug (https://github.com/raspberrypi/firmware/issues/1357) that the new DRM interface does not work for switching DPI displays (like our SCART hats.

Based on https://github.com/raspberrypi/firmware/issues/1734 a kernel change may have caused my problem. I will check this tomorrow.

Those happened ~9 seconds after startup and it's a known error, so it's probably fine.

The "Long Life Milk" is obviously taking great inspiration from the 2%, I modified the case and used a MiniMacro5 PCB inside, added Mill-Max sockets and VIA support for good measure. The case took longer than I care to admit.

It's all for a pretty involved costume (think serious cosplay costumes). The general idea is that I'll have a small keypad with a knob (probably this thing with 4 keys and 1 knob: https://github.com/LeafCutterLabs/miniMACRO5) that sends keystrokes to an RPi, which in turn plays the sounds or manipulates the lights. The lights are mounted throughout the costume and the speaker is carried in a backpack and has it's own battery.

Minimacro5 is basically already the PCB you need! https://github.com/LeafCutterLabs/miniMACRO5

Here is the schematic: https://github.com/LeafCutterLabs/miniMACRO5/blob/master/hardware/schematic.pdf

I like it, this design supports 5x knobs https://github.com/LeafCutterLabs/miniMACRO5 All the files are there so you are free to modify or just make your own.

The gerber/eagle files are on the github so feel free to have your own made or modify it. https://github.com/LeafCutterLabs/miniMACRO5

Yeah, take a look at the GitHub, the designer sells them on Tindie or you can get the Pcb's made up yourself. I had a batch made up myself, grabbed the parts from several places and printed the cases myself.

The easiest is the atmega32u4 and you may want to start designing around a pro-micro. I designed the minimacro5 (https://github.com/LeafCutterLabs/miniMACRO5) and the eagle/gerber files are there feel free to mess around with it. Feel free to msg with any questions.