LED Gumball Machine

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Contributors: Nate

Resources and Going Further

We hope you've enjoyed reading about our LED dispensing gumball machine. If you liked this one, there's tons more!

Voltage, Current, Resistance, and Ohm's Law

Learn about Ohm's Law, one of the most fundamental equations in all electrical engineering.

Analog to Digital Conversion

The world is analog. Use analog to digital conversion to help digital devices interpret the world.

Metric Prefixes and SI Units

This tutorial will explain how to use and convert between the standard metric prefixes.

I2C

An introduction to I2C, one of the main embedded communications protocols in use today.

MAG3110 Magnetometer Hookup Guide

Get started with the MAG3110 3-Axis Magnetometer and learn how to make your own digital compass that senses the Earth's magnetic fields.

MAX31855K Thermocouple Breakout Hookup Guide

Learn how to take readings with a k-type thermocouple using the MAX31855K cold-junction-compensated k-type thermocouple-to-digital converter.

Blynk Board Washer/Dryer Alarm

How to configure the Blynk Board and app to notify you when your washer or dryer is done shaking.

Qwiic GRID-Eye Infrared Array (AMG88xx) Hookup Guide

The Panasonic GRID-Eye (AMG88xx) 8x8 thermopile array serves as a functional low-resolution infrared camera. This means you have a square array of 64 pixels each capable of independent temperature detection. It’s like having thermal camera (or Predator’s vision), just in really low resolution.