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!
Button and Switch Basics
A tutorial on electronics' most overlooked and underappreciated component: the switch! Here we explain the difference between momentary and maintained switches and what all those acronyms (NO, NC, SPDT, SPST, ...) stand for.
Polarity
An introduction to polarity in electronic components. Discover what polarity is, which parts have it, and how to identify it.
What is a Battery?
An overview of the inner workings of a battery and how it was invented.
Introduction to MQTT
An introduction to MQTT, one of the main communication protocols used with the Internet of Things (IoT).
OpenScale Applications and Hookup Guide
OpenScale allows you to have a permanent scale for industrial and biological applications. Learn how to use the OpenScale board to read and configure load cells.
LilyPad Temperature Sensor Hookup Guide
How to hook up the LilyPad Temperature Sensor as well as some project ideas and example code.
SparkFun Qwiic 3-Axis Accelerometer (ADXL313) Hookup Guide
Let's get moving with the SparkFun Triple Axis Digital Accelerometer Breakout - ADXL313 (Qwiic), a low cost, low power, up to 13-bit resolution, 3-axis accelerometer with a 32-level FIFO stack capable of measuring up to ±4g. This hookup guide will get users started reading measurements from the ADXL313, by Analog Devices, with an Arduino microcontroller, Jetson Nano, or Raspberry Pi.
Qwiic 6DoF - ISM330DHCX Hookup Guide
Get started with the Qwiic 6DoF ISM330DHCX Breakout Board!