Product Idea: USB Flash Drives

[biketool]

My apologies for the delayed response.

Also been slow myself. Very busy during these days, but I had realized I also hadn't messaged here in a while.

Yes, he is also a programmer with a lot of experience, but he isn't that much into the embedded development or into writing forum posts.

Ah okay, well it would be good to communicate with your friend somehow at some point - especially if they are serious about helping with the project

The Teensy 4.1 boards I've ordered arrived a couple of weeks ago, attached is a picture of them in person.

I haven't tried to get another Teensy board yet, the sources I went to originally have now dried up. I also haven't had much time to work on one in any case.

I still have the Pi Pico for now, which should be good enough for some initial experiments. I'm sure there will already be some dev effort in this space, so shouldn't entirely be from scratch.

In the meantime, I've been busy with debugging some U-Boot and ASoC issues on the PineBook Pro, which resulted in not much time being spent on making the Teensy 4.1 boards do something.  However, that doesn't mean that the boards will become abandoned.

Sounds fun! I've also had several unfortunate issues with my PineTab, so not particularly happy about that situation either. I'm currently looking to build my own laptop as I'm not particularly happy with the options out there.

What I've accomplished so far is to get the TinyUSB's USB mass storage example compiled, although I haven't flashed it to a Teensy 4.1 yet.

That's excellent to hear. Please keep me up to date with how that goes and be sure to start putting stuff into a git repo if you're making changes.

I had a ATtiny85(cheap digispark board) connected to a SD card a few years ago as part of a badusb fake-keyboard and mass storage experiment.  It wasn't fast but it worked.  I was using the Arduino IDE so that fit even with micronucleus bootloader loaded on the attiny.