[HN Gopher] OpenEPaperLink: Alternative Firmware for ZBS243-Base... ___________________________________________________________________ OpenEPaperLink: Alternative Firmware for ZBS243-Based eInk Shelf Labels Author : zdw Score : 62 points Date : 2023-05-20 04:53 UTC (1 days ago) (HTM) web link (github.com) (TXT) w3m dump (github.com) | vanburen wrote: | It would be awesome if smart shelf labels could be used to help | customers to search for and locate specific items in a store. | | Something ultra wideband based, like air tags, would be great. | CartenLoor wrote: | Retailers are already implementing something alike where the | shelf labels will light up with an onboard LED when searching | for products | tetris11 wrote: | Oh ffs. This is just going to be an excuse to roll out | consumer-specific prices when a customer is alone in an | aisle. No one wins here. | smilespray wrote: | I can just imagine the tags going "Rich man walking!" as a | customer comes down the aisle. | yjftsjthsd-h wrote: | > Aims | | > Low power (currently around 9uA with a minimum of 40 second | latency) | | > Even lower power when there's no AP around | | > Low latency (tags can check for new data every 40 seconds) | | I wonder how hard it would be to tune it for lower power | consumption by intentionally making it sleep longer between | updates - if I know I only want it to update every hour, can I | set a schedule or at least have it only check every, say, 30m? | Seems like an easy win. | tecleandor wrote: | I'd say you can play with intervals around here... | | https://github.com/jjwbruijn/OpenEPaperLink/blob/a2aea16de83... | wiml wrote: | It's a neat hack that the AP is just a repurposed tag, but since | they use 802.15.4 could the AP run on other arbitrary hardware? | Like the common nRF52840 based boards. | dmitrygr wrote: | Yes and I published firmware to do that a few years back. It | was featured on this site even. Everyone doing anything for | ZBS243 is building on my work since I was the only one to ever | reverse engineer that chip. | qingcharles wrote: | What's the best source to buy these tags on the cheap? | detaro wrote: | commercial liquidation sales/auctions, eBay ___________________________________________________________________ (page generated 2023-05-21 23:00 UTC)