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!
Pulse Width Modulation
An introduction to the concept of Pulse Width Modulation.
Hexadecimal
How to interpret hex numbers, and how to convert them to/from decimal and binary.
What is a Battery?
An overview of the inner workings of a battery and how it was invented.
Fuse Breakout Board Hookup Guide
Protect your project by adding a fuse in your circuit to save it from molten destruction.
Logomatic Hookup Guide
Basic introduction and hook-up guide for the SparkFun Logomatic.
Soil moisture-sensing by hacking a solar light
How to take a solar powered pathway light from a hardware store and make it into a crude soil moisture sensor.
MEMS Microphone Hookup Guide
Get started with the SparkFun analog MEMS microphone breakout board with Arduino! Create a volume unit meter with the ADMP401 or ICS-40180 to react to sound before building your sound visualizer!
Measuring Height with Atmospheric Pressure
Measure height using atmospheric pressure with your Qwiic MicroPressure breakout board!