Most efficient 5V uninterruptible power supply! Be uninterruptible!
Solar power unit for low power devices A time switching battery powered solar charger circuit!
An ultimate mini version of Arduino A Powerful, Arduino compatible prototyping board!
Tame the beast: Solar power station for Arduino Solar power your devices saving energy!
TAME THE BEAST: SOLAR POWER STATION FOR ARDUINO This solar powering, time switching unit for Arduino.