Uh-Oh Battery Level Indicator Hookup Guide

Contributors: Toni_K
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Anyone running a battery-powered project knows how frustrating it can be when a battery dies or runs too low to prevent brown-out conditions. The TL431 in the Uh-Oh Battery Level Indicator Kit can help prevent these frustrations.

TL431 - Voltage Reference


SparkFun "Uh-oh" Battery Level Indicator Kit

1 Retired

This guide will show you how to use your indicator after you have soldered it all together.

Suggested Reading

This is a pretty basic kit, but if you need a refresher on using a multimeter, soldering, or electrical characteristics, please check out the tutorials below.

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How to Use a Multimeter

Learn the basics of using a multimeter to measure continuity, voltage, resistance and current.