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!
Processor Interrupts with Arduino
What is an interrupt? In a nutshell, there is a method by which a processor can execute its normal program while continuously monitoring for some kind of event, or interrupt. There are two types of interrupts: hardware and software interrupts. For the purposes of this tutorial, we will focus on hardware interrupts.
Introduction to MQTT
An introduction to MQTT, one of the main communication protocols used with the Internet of Things (IoT).
Magnetic Levitation
This tutorial will show you how to build a magnetic levitation circuit using common parts.
Configuring the PATH System Variable
A simple guide for configuring the PATH variable on Win 10, Mac OSX, and Linux systems.
Accelerometer Basics
A quick introduction to accelerometers, how they work, and why they're used.
Vernier Shield Hookup Guide
A guide to using the Vernier Shield
Force Sensitive Resistor Hookup Guide
How to hook a force-sensitive resistor up to an Arduino to measure pressure variances.
SparkFun Photodetector (MAX30101) Hookup Guide
The SparkFun Photodetector - MAX30101 (Qwiic) is the successor to the MAX30105 particle sensor, a highly sensitive optical sensor. This tutorial will get you started on retrieving the raw data from the MAX30101 sensor.