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!
Analog to Digital Conversion
The world is analog. Use analog to digital conversion to help digital devices interpret the world.
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!
Button and Switch Basics
A tutorial on electronics' most overlooked and underappreciated component: the switch! Here we explain the difference between momentary and maintained switches and what all those acronyms (NO, NC, SPDT, SPST, ...) stand for.
Sending Sensor Data Over WiFi
This tutorial will show you how setup a simple peer-to-peer connection to send and receive sensor data between two ESP32 WiFi boards.
Piezo Vibration Sensor Hookup Guide
How to combine a piezo sensor, high-value resistor, and an Arduino to create a vibration sensor.
Raspberry Pi Zero Helmet Impact Force Monitor
How much impact can the human body handle? This tutorial will teach you how to build your very own impact force monitor using a helmet, Raspberry Pi Zero, and accelerometer!
LilyPad Light Sensor V2 Hookup Guide
How to hook up the LilyPad Light Sensor as well as some project ideas and example code.
Digital Temperature Sensor Breakout - AS6212 (Qwiic) Hookup Guide
Get started measuring highly accurate temperatures at extremely low power with the AS6212 temperature sensor on the SparkFun Digital Temperature Sensor Breakout - AS6212 (Qwiic).