YHurk

Findimy-tag

 
Overview

Adopt Divin Communications NDB1793SG, DIY airtag.
The first version was tested on July 16th and
was optimized and upgraded on July 21st
to add a buzzer. If it is not used, there is no need to solder the 0k pad. If it is used, just short-circuit the 0k pad. Or solder a 0k resistor. The 3.3v step-down circuit is added using the ME6211C33M5G voltage regulator chip. You can use this method to power the battery if you don't want to use a 3v battery to get a longer battery life.
The price was only 16 before, but today it has increased to 38, which is no longer cost-effective... 
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Update:2025-06-24 01:48:29

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