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.
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.
What is a Battery?
An overview of the inner workings of a battery and how it was invented.
SparkFun Troubleshooting Tips
Not working as expected? In this tutorial, we will be exploring a few general troubleshooting tips and possible solutions that frequently come up with SparkFun's Technical Support.
Humidity-sensing LED Flower
How about that humidity? This tutorial shows how to add sensing capability to the 21st Century Fashion Kit's RGB flower project.
CCS811 Air Quality Breakout Hookup Guide
This tutorial shows you how to get data from a CCS811 breakout board with the I2C interface.
Rotary Dial Kit Assembly Guide
Put together your Rotary Dial Kit and light it up with our Arduino example code!
Sending Sensor Data via Bluetooth
In this tutorial, we will show you how to get started on incorporating Bluetooth into your electronics projects. This project uses a SparkFun Thing Plus ESP32 Wroom USB-C to display data from a Triple Axis Accelerometer over Bluetooth.