Tinkering project: How to build your own AirTag clones that are suitable for everyday use
In a previous article, we presented a project for building your own trackers similar to the well-known AirTags from Apple, which are also Apple’s Use Find My Network. The basic functionality was explained there and it was shown how to get these tags to work.
However, if you want to use the tags practically in everyday life, for example to keep an eye on holiday luggage or your bike, then the presented proof-of-concept solution will reach its limits. In principle, hurdles have to be overcome in three areas, for which we provide solutions one after the other that help to successfully implement the project of self-made AirTag clones and to use the results in practice:
1. Alternative firmware handling of AirTag hardware with button cell
2. OpenHaystack application under current macOS version and keep it running.
3. Build compact, battery-operated AirTag clones yourself
– Long battery life thanks to alternative firmware
4. Compatibility problems with macOS and Apple Mail under control
Checklist:
– Time required: 3 to 4 hours
– Costs: from 20 euros
Material:
– Soldering station, solder, flux, wire
– SWD programmer
– Magnifying glass (optional)
Licensed buildings:
But before we get to the practical details for the self-made solutions, it should be mentioned at this point that there is another variant. In addition to the original AirTags from Apple, there are also licensed replicas on the market, recently for example in Aldi’s online shop. These tags typically cost about half the original price.
The main difference seems to be the missing UWB (Ultra Wide Band) technology, which Apple’s originals use to locate objects in space: In the case of original AirTags, the iPhone shows an arrow pointing in the direction of the tag and gives the approximate number Distance (e.g. one meter).
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