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!
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!
I2C
An introduction to I2C, one of the main embedded communications protocols in use today.
Digital Logic
A primer on digital logic concepts in hardware and software.
RFID Basics
Dive into the basics of Radio Frequency Identification (RFID) technology.
Flex Sensor Hookup Guide
An overview of the flex sensor - a bendable variable resistor. Plus, example circuits and Arduino code to get you started!
Simultaneous RFID Tag Reader Hookup Guide
A basic guide to getting started with the RFID Tag Reader breakout and how to read and write multiple RFID tags over multiple feet!
Pyboard Hookup Guide
Getting started with the Pyboard using MicroPython.
SparkFun RTK Express Hookup Guide
Learn how to use the enclosed RTK Express product to achieve millimeter level geospatial coordinates.