I stuffed my circuit into a AA battery holder and it works great as a night light, powered by either a single somewhat-depleted AA or AAA battery.
As always, all notes, schematics and code are in the Little Arduino Projects repo on GitHub.
Thursday, February 25, 2016
LittleArduinoProjects#137 Toroidal Joule Thief
In #129 I posted about a two-transistor boost circuit. This is an even simpler circuit - very common over around the internet and known as the archetypal "joule thief". The smallest I've seen is Eric Wasatonic's micro version.
I stuffed my circuit into a AA battery holder and it works great as a night light, powered by either a single somewhat-depleted AA or AAA battery.
As always, all notes, schematics and code are in the Little Arduino Projects repo on GitHub.
I stuffed my circuit into a AA battery holder and it works great as a night light, powered by either a single somewhat-depleted AA or AAA battery.
As always, all notes, schematics and code are in the Little Arduino Projects repo on GitHub.
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