These are the components you need for building the portable USB charger circuit.
These are all pretty standard components, so you can probably get these at your local electronics supplier if you have one.
Joe Grand AKA kingpin, also know from the TV show “Prototype This!” is writing the foreword for my upcoming book Electronics For Kids:
— Joe Grand (@joegrand) March 11, 2016
It’s an honor to have such a cool guy as a part of the Electronics For Kids team.
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