I have constructed a circuit that has an Arduino Pro Mini (3.3v) along with an LCD screen (3v) that is being powered off of a single 18650 battery ( 4.2v – 3.6v). The purpose of the Arduino is to take a analog reading of the voltage of the battery while the 18650 is also powering a higher ampere sec…

Regulating DC Voltage

Peter9DO April 22, 2014, 12:30pm 17

Well I picked up a DC buck boost regulator from eBay, just waiting on it to come in the mail.

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