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.
Introduction to MQTT
An introduction to MQTT, one of the main communication protocols used with the Internet of Things (IoT).
Introduction to DMX
DMX512 is an industry standard in lighting and stage design, whether it be controlling lights, motors, or lasers, DMX512 has many uses. In this tutorial we’ll cover DMX512 (Digital Multiplex with 512 pieces of information).
TFMini - Micro LiDAR Module (Qwiic) Hookup Guide
The TFMini is a ToF (Time of Flight) LiDAR sensor capable of measuring the distance to an object as close as 30 cm and as far as 12 meters! The TFMini allows you to easily integrate LiDAR into applications traditionally reserved for smaller sensors such as the SHARP GP-series infrared rangefinders. With the added Qwiic feature, you can quickly connect to the sensor via I2C!
Advanced Autonomous Kit for Sphero RVR Assembly Guide
Get your Advanced Autonomous Kit for the Sphero RVR built up with this hookup guide!
Build Your Own High-Concentration CO2 Detector
The SparkFun STC31 CO2 Sensor can accurately measure CO2 concentrations up to 100% with high repeatability and long-term stability, thanks to humidity and temperature compensation provided by the built-in SHTC3. This tutorial will show you how!