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.
Data Types in Arduino
Learn about the common data types and what they signify in the Arduino programming environment.
External IO and Metastability
Why external signals can cause metastability and how to use constraint files to manage this
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.
CCS811 Air Quality Breakout Hookup Guide
This tutorial shows you how to get data from a CCS811 breakout board with the I2C interface.
TFMini - Micro LiDAR Module 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 integrate LiDAR into applications traditionally reserved for smaller sensors such as the SHARP GP-series infrared rangefinders.
Qwiic TMP117 High Precision Digital Temperature Sensor Hookup Guide
Add a high precision, digital temperature sensor to your projects using the TMP117 over the I2C!
Wireless Timing Project
Time for racing, let's make a wireless timing device using ESP32 wireless communication.