Adafruit Learning System

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BREAKOUT BOARDS

BATTERIES/POWER

6 GUIDES | 36 PAGES | 0 FEATURED | 2 POPULAR

Adafruit TPL5110 Power Timer Breakout

Its like that timer your grandparents had on the air-conditioning unit. But for electronics projects.

With some development boards, low power usage is an afterthought. Especially when price and usability is the main selling point. So what should you do when its time to turn around and make that project of yours run on a battery or solar? Sure you could try to hot-air that regulator off, or you could jerry-rig a relay. Or, use a 555? Ugh, the options aren't that great.

Pro Trinket Power Meter

Build a small meter to display voltage, current, and power usage.

Use a Pro Trinket and INA219 breakout to build a small power meter that displays voltage, current, and power consumption on an OLED display.

Portable Apple Watch Charger

Hack your existing charger and build your own portable charger

by Ruiz Brothers

Here’s how to build a wireless charger for the Apple Watch.

LED Sequin Bow Tie

Formalwear bling

Perfect for beginners and super quick, you can stitch one of these for everybody in your wedding party! The circuit uses a switched coincell battery holder, sewable LED sequins, and conductive thread.

Adafruit INA219 Current Sensor Breakout

Measure high side voltage and DC current draw over I2C

The INA219B breakout board will solve all your power-monitoring problems. Instead of struggling with two multimeters, you can use this breakout to measure both the high side voltage and DC current draw over I2C with 1% precision.

Adafruit Ultimate GPS

One GPS to rule them all and in the darkness find them!

We carry a few different GPS modules here in the Adafruit shop, but none that satisfied our every desire - that's why we designed this little GPS breakout board. We believe this is the Ultimate GPS module, so we named it that. It's got everything you want and more. This guide will teach you how to wire it up to a computer or an Arduino, and how to use it.