A versatile voltage booster for AA/AAA batteries. Can be used for USB charging, LiPo charging, as LED flashlights, and 5V/3.3V breadboard power supply, all from two AA/AAA batteries!
When your electronic devices report that the batteries are ‘dead’ and need to be replaced, do you ever feel frustrated that there is often still a lot of juice in them? Don’t throw away the batteries yet! You can use the remaining energy to do a lot of things, such as powering LED flashlights and breadboard circuit experiments, or even charging LiPo batteries.
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I am a computer scientist and electronics hobbyist. I work on research problems in computer graphics, and write software systems. In my spare time, I work on electronic projects, particularly in home automation systems.