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!
Metric Prefixes and SI Units
This tutorial will explain how to use and convert between the standard metric prefixes.
Hexadecimal
How to interpret hex numbers, and how to convert them to/from decimal and binary.
Introduction to MQTT
An introduction to MQTT, one of the main communication protocols used with the Internet of Things (IoT).
Monitor Sensor Data from Anywhere
Using WiFi to send sensor data from an ESP32 to a WiFi network and be able to read it from an IoT Dashboard from anywhere in the world.
Soil Moisture Sensor Hookup Guide
A quick hookup guide and project to get you started with the Soil Moisture Sensor from SparkFun.
Load Cell Amplifier HX711 Breakout Hookup Guide
A hookup guide for the HX711 load cell amplifier breakout board
Programming the SparkFun Edge with Arduino
Running low-power machine learning examples on the SparkFun Edge can now be done using the familiar Arduino IDE. In this follow-up to the initial Edge tutorial, we'll look at how to get three examples up and running without the need to learn an entirely new SDK.
Tinker Kit Circuit Guide
This guide takes you through the basics of building 11 different circuits with the SparkFun Tinker Kit and how to program them using the Arduino IDE.