This is just something goofy I've been fooling with. I was given a broken mini helicopter with no remote:
It did have the charger which was nice so I turned the heli into a lipo charger:
I just de-soldered the wire and rigged up a plug! Some LMRers figured it was about 150ma and the meter read 4 V. Too bad it won't power an Arduino but I imagine a 3,3 V uC would work. I have an MSP340...
Then a few hot glue sticks later:
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STEVIE THE WONDER SLED!
Like I said, nothing exciting. No servos or sensors or even a processor. Just a little sled
I just thought I would share it in the hopes that it may inspire someone else to tinker with one of these little helis. If you have a broken one! Or you crash yours…
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https://www.youtube.com/watch?v=7yR5tanP-Mc