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!
I2C
An introduction to I2C, one of the main embedded communications protocols in use today.
Alternating Current (AC) vs. Direct Current (DC)
Learn the differences between AC and DC, the history, different ways to generate AC and DC, and examples of applications.
Connectivity of the Internet of Things
An overview of the different protocols that can be used for the development of Internet of Things (IoT)-based projects.
External IO and Metastability
Why external signals can cause metastability and how to use constraint files to manage this
Are You Okay? Widget
Use an Electric Imp and accelerometer to create an "Are You OK" widget. A cozy piece of technology your friend or loved one can nudge to let you know they're OK from half-a-world away.
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.
ADXL345 Hookup Guide
Get started with the ADXL345 Accelerometer.
Qwiic IR Array (MLX90640) Hookup Guide
The Melexis MLX90640 contains a 32x24 array of thermopile sensors creating, in essence, a low resolution thermal imaging camera. In this guide, we’ll go over how to connect your Qwiic Infrared Array with MLX90640 and get it communicating with Processing to produce a nice thermal image.