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 a Circuit?
Every electrical project starts with a circuit. Don't know what a circuit is? We're here to help.
Data Types in Arduino
Learn about the common data types and what they signify in the Arduino programming environment.
Magnetic Levitation
This tutorial will show you how to build a magnetic levitation circuit using common parts.
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.
MAX31855K Thermocouple Breakout Hookup Guide
Learn how to take readings with a k-type thermocouple using the MAX31855K cold-junction-compensated k-type thermocouple-to-digital converter.
Electret Mic Breakout Board Hookup Guide
An introduction to working with the Electret Mic Breakout Board.
SparkFun GPS Dead Reckoning NEO-M8U Hookup Guide
The u-blox NEO-M8U is a powerful GPS units that takes advantage of untethered dead reckoning (UDR) technology for navigation. The module provides continuous positioning for vehicles in urban environments and during complete signal loss (e.g. short tunnels and parking garages). We will quickly get you set up using the Qwiic ecosystem and Arduino so that you can start reading the output!
Display Distance Measurements On an OLED
This tutorial will take your SparkFun Qwiic Ultrasonic Distance Sensor to the next level by adding a cool little OLED display.