OpenEPaperLink notes: Difference between revisions
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===Tag AP=== | |||
This project's idea seems to be that, | This project's idea seems to be that, | ||
since every tag has a 802.15.4 radio (its own protocol?), | since every tag has a 802.15.4 radio (its own protocol?), | ||
if you add an | if you add an microcontroller to just one of these tags (with a specific connection - the tags have a debug header), | ||
you now have a tag that can ''be'' that central checkin point of the tags, saving one more device to buy. | that takes control of it, you now have a tag that can ''be'' that central checkin point of the tags, saving one more device to buy. | ||
And since ESP32s have WiFi, you can now talk to that AP-Tag via WiFi, while ''it'' talks to the rest of the tags over 802.15.4. | And since ESP32s have WiFi, you can now talk to that AP-Tag via WiFi, while ''it'' talks to the rest of the tags over 802.15.4. | ||
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===Tags=== | |||
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Every 40 seconds is the ''fastest'' in normal use, apparently weak signals increase this to 10 minutes (because it would drain faster otherwise). | Every 40 seconds is the ''fastest'' in normal use, apparently weak signals increase this to 10 minutes (because it would drain faster otherwise). | ||
Also, they send in the most basic "do you have something new" and unless it gets a response within ''milliseconds'', it | Also, they send in the most basic "do you have something new" and unless it gets a response within ''milliseconds'', | ||
it starts sleeping again. | |||
'''Firmware''' | |||
https://github.com/jjwbruijn/OpenEPaperLink/wiki/Firmware-Updates | |||
You can do OTA tag updates from the AP's filesystem. | |||
(how do you get them there?) | |||
===See also=== | |||
https://openepaperlink.de/ | https://openepaperlink.de/ | ||
https://github.com/jjwbruijn/OpenEPaperLink/wiki | https://github.com/jjwbruijn/OpenEPaperLink/wiki | ||
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Revision as of 09:47, 30 April 2024