Phone charging is something we do regularly but there is more to phone charging than just putting five volts into the phone and letting it sort out the rest. Phone chargers look to the data lines to see what kind of power they can draw. There are even a few different ways they do this and they are explained in the article.
You can find all my Hackaday articles on my author page.
The rest of the Hackaday summaries have been arranged by date.
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Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
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