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!
Pull-up Resistors
A quick introduction to pull-up resistors - whey they're important, and how/when to use them.
Logic Levels
Learn the difference between 3.3V and 5V devices and logic levels.
Metric Prefixes and SI Units
This tutorial will explain how to use and convert between the standard metric prefixes.
Sending Sensor Data Over WiFi
This tutorial will show you how setup a simple peer-to-peer connection to send and receive sensor data between two ESP32 WiFi boards.
LSM9DS0 Hookup Guide
How to assemble, connect to, and use the LSM9DS0 -- an accelerometer, gyroscope, and magnetometer all-in-one.
SparkFun WiFi IR Blaster Hookup Guide
How to assemble the WiFi IR Blaster and program it using Arduino. You'll be controlling IR devices from the web in no time!
Qwiic PIR Hookup Guide
Get started passively monitoring motion using the Panasonic EKMC and EKMB sensors with the SparkFun Qwiic PIR.
SparkFun Thing Plus - NINA-B306 Hookup Guide
A quick guide to get started using the SparkFun Thing Plus - NINA-B306. This Thing Plus is loaded with the Arm Cortex-M4 processor in the NINA-B306 along with on-board motion and environmental sensors in the ISM330DHCX 6DoF and BME280 pressure and temperature sensor.