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My pet peeve with RasPi for these types of handheld projects is that they don't support suspend, and don't have a true poweroff state. Even in poweroff, they si
by mafuyu 2y ago
My pet peeve with RasPi for these types of handheld projects is that they don't support suspend, and don't have a true poweroff state. Even in poweroff, they sit there consuming a bunch of current.
Beepy is a similar project that uses a RasPi Zero, and their approach is to cut power to the RasPi entirely with a management MCU. On my Beepy, I switched to a Radxa Zero instead and ported over any relevant kernel modules and device tree overlays, because it has an Amlogic SoC that actually supports suspend.
- boomskats 2y agoAm I right in assuming it's fairly straightforward swap hardware wise? Do you have any measurements of the difference in battery drain between the two? Is it a fairly recent kernel? With that Sharp memory LCD and proper suspend that's potentially a gamechanger for the beepy. Any direction you can point me in appreciated.
- rcarmo 2y agoDitto. I’ve wanted to get a Beepy for a while, and I have a Radxa Zero already.
- swiatlo 2y agowhat is better? for ssh?
- mafuyu 2y agoHey, sorry for the late response. I posted my notes here: https://github.com/Hylian/beepy-radxa-zero-notes https://github.com/Hylian/beepy-radxa-zero-notes. It's a straight swap hardware-wise, and for software, you just need to build/install the kernel modules and configure some kernel boot arguments. Feel free to ask in the Discord if you have any questions.
- erohead 2y agoI'd love to learn more! I'm one of the Beepy creators...I just emailed you