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!
Pulse Width Modulation
An introduction to the concept of Pulse Width Modulation.
Series and Parallel Circuits
An introduction into series and parallel circuits.
LogicBlocks Experiment Guide
Experiments guide for the LogicBlocks kit. Build oscillators, latches, multiplexers and more with the LogicBlocks.
Understanding Thermal Resistance
Discussing what thermal resistance is, how it’s used for thermal management, and how to maximize the life of your project.
Experiment Guide for RedBot with Shadow Chassis
This Experiment Guide offers nine experiments to get you started with the SparkFun RedBot. This guide is designed for those who are familiar with our SparkFun Inventor's Kit and want to take their robotics knowledge to the next level.
OpenPIR Hookup Guide
How to use and customize the SparkFun OpenPIR motion sensor.
Qwiic 6DoF (LSM6DSO) Breakout Hookup Guide
A hookup guide for the Qwiic 6DoF (LSM6DSO), which features a 3-axis accelerometer, 3-axis gyroscope, temperature sensor, and FIFO buffer.
Build Your Own High-Concentration CO2 Detector
The SparkFun STC31 CO2 Sensor can accurately measure CO2 concentrations up to 100% with high repeatability and long-term stability, thanks to humidity and temperature compensation provided by the built-in SHTC3. This tutorial will show you how!