Posted by kristianpaul 5 days ago
This is cursed
[1] https://github.com/ZitaoTech/HackberryPiCM5/tree/main/Speake...
Almost all of the normally free GPIO is eaten up by a DPI (Display Parallel Interface) connection to the screen.
The screen should instead use the currently unused MIPI pins if you're already at the level of sophistication of laying out PCIe and USB3 traces.
That gives you back nearly all of your GPIO to use for stuff like I2S, and you can then even expose more non USB externally than just that one stemma port.
On top of that, for a project like this, I would disagree with the quality you get out of the pwm as audio thing. It's not audiophile by any means, but neither is some cheap Bluetooth receiver chip, and it's certainly good enough for the speakers that weren't designed for this case.
I'm not saying I like Bluetooth, but the justification isn't that bad.
Edit: Sorry I meant deep sleep, not idle. Corrected.
I'll put that down as a TIL :-)
I'm really wanting a clamshell-like device with console controls in addition to the qwerty keyboard, with a large 7" screen (even if resolution is lower than 1920x768) based on the RK3588.
I want what the Pandora/GP2X could have been: https://en.wikipedia.org/wiki/Pandora_(computer) but with a larger screen and a more easily acquired SoC. Using replaceable 18650s (and charging via USB-C) is on my requirements as well.
I want to play games, basically, but set up my own linux distro for it, complete with mame and some ROMs.
If it can do games other than mame, then so much the better!
Anyone have any ideas?
https://www.clockworkpi.com/uconsole
I have a couple of these - they work great for dev systems and its occasionally fun to load up PICO8 and have a bit of a bash..
I also have a couple of OpenPandora's but I stopped using them when I got a Steam Deck.
I had previously experimented with the CM5, and found out that you can't really use it for anything portable without attaching a heavy battery. With its excellent software stack, CM5 could have been everywhere if they had gotten this right.
Another comment mentions the RP2xxx microcontrollers. If you look at those, they are optimised for compute power and data throughput rather than low power operation. I think it's a reasonable choice - the Pico boards are pretty sturdy and the original target is people running MicroPython, Arduino, etc rather than looking for µA standby currents.
Besides brand awareness what could justify foregoing mainline Linux kernel and superior performance
RK3688 looks incredible based on leaks and could make the CM5 form factor practical instead of the novelty it is now
Awful.
I've got big hands and I think the allure of pocketable full-keyboard devices is just not for me.
Though you'll need USB hub for internet (WiFi/Eth adapter) and audio.
Also shipping takes a few months, which is kinda scary when you don't know the tariffs that far in advance.
I have a bunch of Raspberry Pi's in a drawer, lol. Although I did pull one out the other day to set up a PiHole.
[1] https://blog.beeper.com/2023/05/16/beeper-x-sqmfi-beepberry/
For me it was a cool little terminal that mostly didn't work outside my usual hotspot. Managing WiFi on a Pi from the terminal is no fun.
FWIW the project hit a wall and they didn't deliver the quantity they planned on, I ended up buying one on ebay for an extortionate cost (but buying rare electronics scratches an itch for me) - digging in the discords lead to discover an offshoot project that made some progress at a recent chaos comms congress, called Beepis
I need AltGR (similar, chech, french, spanish and many other language!) https://en.wikipedia.org/wiki/AltGr_key