I am a freediver (as long/far/deep as possible on a single breath of air) that trains a lot in pools and also in lakes/seas (up to 60+ meters deep). I'm working on an Arduino/Jeenode based pool training tool. Instead of buttons I will use an accelerometer that detects taps on the various axis. I was thinking about buying a simple transparent waterproof box (like the Otterbox 1000) so I will be able to read the lcd. But does anyone perhaps know of a way to make an Arduino waterproof to a depth of over 100 meter?
cheers Eric van Riet Paap, Utrecht, Netherlands.