brian_krejcarek

5 ms·

1. 1.▲
   by brian_krejcarek 7y ago

   Love it. Though, not sure what we’ve got going here would work the best in that particular scenario. It’s really more for work, where things are spread out over larger areas. We’re leveraging the phones already in peoples’ pockets to be
2. 2.▲
   by brian_krejcarek 7y ago

   Yes. That’s very much how it actually works, except there are no actual Bluetooth connections or pairing formed that directly link a single phone to a label. Instead, multiple devices (the more the better) all listen for beacons from labe
3. 3.▲
   by brian_krejcarek 7y ago

   Spot on. We'll be iterating.
4. 4.▲
   by brian_krejcarek 7y ago

   The size of the labels is 28mm x 76mm x 0.5mm. We’d love to get smaller, but at the moment, we’re concentrating on making them thinner. The adhesive is acrylic-based and pretty strong. Some of our initial applications are things like to
5. 5.▲
   by brian_krejcarek 7y ago

   Thanks. At the moment, unfortunately it's not rechargeable. We've reduced the bill of materials count to almost nothing. It's just a few parts, mainly adhesive tape and aluminium foil, so it's meant to be used more li
6. 6.▲
   by brian_krejcarek 7y ago

   Thanks. Correct, it’s not rechargeable. Rather, primary (non-re-chargeable) lithium-based electrochemistry in very tiny amounts on thin films. We do have some energy harvesting stuff up our sleeves here too, but that’s down the road a bi
7. 7.▲
   by brian_krejcarek 7y ago

   We’ve heard from those in the military about scenarios where the whole site or compound goes into lock-down if one little piece of equipment goes missing. Putting labels on everything even remotely sensitive could be doable with a simple
8. 8.▲
   by brian_krejcarek 7y ago

   Exactly. This is very much an intended application. It’s also perfect for hospitals because of the density of staff with phones and tablets as they walk around. Not having to install readers and gateways, as you mention, is also helpful
9. 9.▲
   by brian_krejcarek 7y ago

   Simply put, yes, the app is currently setup to show a chain of custody over time, which may mean providing the metadata you mention. Specifically, the app currently shows who had a specific delivery at what time, and where, shown chronolog
10. 10.▲
    by brian_krejcarek 7y ago

    Cool. Yeah, e-ink and other sensor hardware is something that we’ve been considering down the road. It could be added to our reel-to-reel process. But for the moment, we really want to stay focused and keep the hardware very low cost for
11. 11.▲
    by brian_krejcarek 7y ago

    Thanks! — In the current ones we’re shipping right now, the battery is one of those thin lithium primaries, ~0.45mm. But, in the version that’s coming out, we’re coating the anode and cathode materials on two different substrates and lamin
12. 12.▲
    by brian_krejcarek 7y ago

    Not paired via a BLE connection, but associated with the Got-it app by tapping an integrated NFC on the same label substrate. It’s a non-connectable beacon. This way, all the phones that are associated as part of a team can listen for all
13. 13.▲
    Launch HN: Got-it (YC W19) – Bluetooth labels for tracking things at work

    411 points by brian_krejcarek 7y ago|143 comments