Rather than make new devices that will turn into e-waste after the event, we're recycling old price tags into networked conference badges. https://github.com/osresearch/eink-pricetags
New images are sent to the tags using the A7106 radio module from another tag, driven by gpio from a Pi. https://github.com/cibomahto/pya7106
@th Awesome!!!
@th just a tiny nitpick, but wouldn't this be reusing instead? as in reduce>reuse>recycle.
@th really glad this type of project is gaining more traction. I recently dumpstered an eink pricetag from trader joes in the US and was hoping someone had figured out a simple way to reuse it.
in berlin I noticed the lidl is using almost 100% eink price tags and they are using multi color ones now too
This is really cool
@th
So you could generate art with a chain of those tags that travels from one tag to another and mutates over time.
Great work!
@momo tag-to-tag communication is possible, although battery life is a challenge - RX mode takes 18mA, compared to sleeping 5uA. https://github.com/osresearch/eink-pricetags/issues/8
@th Okay that is a huge difference. More than 3 times the power drain.
@momo it's even worse: more than 3000 times the power.
@th I was missing the k when typing.
@th Getting more interesting by the hour 😀
@th stuff a QR code generator in it?
@th Wonderful!
@th I'd love to get my hands on a big old pile of these
@th ooh I know that ring!
@h2owasser @th
I can't find them for less than 12€ (used, for the small ones) in DE.
Any suggestions (apart from shoplifting) appreciated.
@adorfer @h2owasser these e-ink price tags came on the slow train from china https://item.taobao.com/item.htm?spm=a1z0d.6639537.1997196601.37.73dd74841Tv7Nu&id=629479220903
@th I really like the MSP430 platform - it was my introduction to MCU programming!
Floyd-Steinberg dithering looks nice on the high-density B&W e-ink screen