LED Gumball Machine
Contributors:
Nate
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!
Pull-up Resistors
A quick introduction to pull-up resistors - whey they're important, and how/when to use them.
Serial Communication
Asynchronous serial communication concepts: packets, signal levels, baud rates, UARTs and more!
Voltage, Current, Resistance, and Ohm's Law
Learn about Ohm's Law, one of the most fundamental equations in all electrical engineering.
What is Electricity?
We can see electricity in action on our computers, lighting our houses, as lightning strikes in thunderstorms, but what is it? This is not an easy question, but this tutorial will shed some light on it!
INA169 Breakout Board Hookup Guide
How to interface with the INA169 Breakout Board to measure current.
TMP102 Digital Temperature Sensor Hookup Guide
How to connect and use the SparkFun Digital Temperature Sensor Breakout - TMP102 with an Arduino.
LilyPad Light Sensor V2 Hookup Guide
How to hook up the LilyPad Light Sensor as well as some project ideas and example code.
SparkFun gator:microphone Hookup Guide
The gator:microphone is an I2C sensor for detecting sound with an electret microphone. This tutorial will get you started using the gator:microphone with the micro:bit platform.