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For kite aerial photography, I've used a really tiny altimeter that only has one LED: http://wingedshadow.com/howhigh.html http://wingedshadow.com/howhigh.html
by tricolon 13y ago
For kite aerial photography, I've used a really tiny altimeter that only has one LED: http://wingedshadow.com/howhigh.html http://wingedshadow.com/howhigh.html
- deletes 13y agoSo it makes series of different blinks for a particular message?