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!
Voltage, Current, Resistance, and Ohm's Law
Learn about Ohm's Law, one of the most fundamental equations in all electrical engineering.
Hexadecimal
How to interpret hex numbers, and how to convert them to/from decimal and binary.
Raspberry gPIo
How to use either Python or C++ to drive the I/O lines on a Raspberry Pi.
Raspberry Pi SPI and I2C Tutorial
Learn how to use serial I2C and SPI buses on your Raspberry Pi using the wiringPi I/O library for C/C++ and spidev/smbus for Python.
ML8511 UV Sensor Hookup Guide
Get up and running quickly with this simple to use UV sensor.
HMC6343 3-axis Compass Hookup Guide
How to hook the HMC6343 -- a high-end, tilt-compensated compass module -- up to an Arduino. Never get lost again!
Interactive 3D Printed LED Diamond Prop
In this tutorial, we will learn about how to create an interactive theatrical prop for a performance by 3D printing a translucent diamond prop using a non-addressable RGB LED strip and AT42QT1011 capacitive touch sensing.
SparkFun Triple Axis Accelerometer Breakout - BMA400 (Qwiic) Hookup Guide
Add low power triple axis motion monitoring to your Qwiic project using the SparkFun Triple Axis Accelerometer Breakout - BMA400 (Qwiic).