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!
Serial Communication
Asynchronous serial communication concepts: packets, signal levels, baud rates, UARTs and more!
Voltage, Current, Resistance, and Ohm's Law
Learn about Ohm's Law, one of the most fundamental equations in all electrical engineering.
Accelerometer Basics
A quick introduction to accelerometers, how they work, and why they're used.
Lessons in Algorithms
Learn techniques on how to use Finite Impulse Response (FIR) filters and other data-processing tools to turn data into information.
HIH-4030 Humidity Sensor Hookup Guide
Measure relative humidity with SparkFun's HIH-4030 Humidity Sensor Breakout.
SparkFun Absolute Digital Barometer - LPS28DFW (Qwiic) Hookup Guide
Get started adding water-resistant pressure sensing using the SparkFun Absolute Digital Barometer - LPS28DFW (Qwiic) following this guide.
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.
SparkFun Arduino UNO R4 WiFi Qwiic Kit Hookup Guide
The SparkFun Arduino UNO R4 WiFi Qwiic Kit is a great way to get started with Arduino and the Qwiic-connect system - use this guide to get started!