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!
Polarity
An introduction to polarity in electronic components. Discover what polarity is, which parts have it, and how to identify it.
Lessons in Algorithms
Learn techniques on how to use Finite Impulse Response (FIR) filters and other data-processing tools to turn data into information.
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.
HIH-4030 Humidity Sensor Hookup Guide
Measure relative humidity with SparkFun's HIH-4030 Humidity Sensor Breakout.
LilyPad Light Sensor V2 Hookup Guide
How to hook up the LilyPad Light Sensor as well as some project ideas and example code.
SparkFun GPS-RTK Dead Reckoning ZED-F9R Hookup Guide
The u-blox ZED-F9R is a powerful GPS-RTK unit that uses a fusion of IMU, wheel ticks, a vehicle dynamics model, correction data, and GNSS measurements to provide highly accurate and continuous position for navigation in the difficult conditions. We will quickly get you set up using the Qwiic ecosystem through Arduino and Python so that you can start reading the output!
Air Quality Sensor - SGP40 (Qwiic) Hookup Guide
Get started measuring indoor air quality with the SparkFun Air Quality Sensor - SGP40 (Qwiic) Hookup Guide.