A 1KWh mobile solar power plant for emergency backup power and camping. Tracks the sun's movement, improving battery charging efficiency as much as 50% .
https://www.youtube.com/watch?v=BawOZjMNyVo
Scooterputer
Computer for my scooter monitoring and displaying battery levels, speed, odometer, trip meters, RPM, GPS location, time, date and temperatures. Also GMRS and Android app for location tracking. Search for it on Hackaday.