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This is a great wee device! BLE, Wi-Fi and LoRa on one board makes it flexible for way more than a shopping list, this is just what I built first. This firmware only uses Wi-Fi.
Fully vibe-coded with Claude Code, I didn't hand-write this. I wanted to see how Claude would get on with building something useful for a new hardware device.
As it's stuck to the fridge it's easy for the family to use, and it's already being used day to day which I'll admit is a first for a home built project like this
Hold on babe I gotta charge my fridge magnet…
Jokes aside this is cool
At first I thought “that’s a very specific shopping list for fridge magnets”. :)
Curious what you landed on for refresh, full flash or partial? Ticking off items one by one is exactly where partial update artifacts pile up on these panels.
I stuck with the recommended full refresh every 15 interactions and partial otherwise. There's also a full refresh when moving from the settings screen back to the main list. Honestly though it probably makes sense to only do a full refresh when unticking (which is rare) or changing screens. The typical use cases are (1) glancing at the screen to make sure something is one the list and (2) ticking things off as they go into the basket. Neither really require a full refresh imho. Some ghosting is acceptable in general use I think
Project like this make me excited with AI. You can pretty much custom firmware, tailored for your specific needs. Thanks for this repo. Quick question to the community : why does nobody makes afordable huge e-ink displays ?
I was just working on something similar. Was about to buy the xteink for my display. You've accelerated my progress. How's the battery life?