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!
Serial Peripheral Interface (SPI)
SPI is commonly used to connect microcontrollers to peripherals such as sensors, shift registers, and SD cards.
Light
Light is a useful tool for the electrical engineer. Understanding how light relates to electronics is a fundamental skill for many projects.
Data Types in Arduino
Learn about the common data types and what they signify in the Arduino programming environment.
Lessons in Algorithms
Learn techniques on how to use Finite Impulse Response (FIR) filters and other data-processing tools to turn data into information.
Wake-on-Shake Hookup Guide
A basic hookup guide for getting started with the SparkFun Wake-on-Shake. The board gives you the ability to put your project into hibernation until bumped or shaken awake using the ADXL362 accelerometer. This means you can design projects meant to stay inert for long periods of time, possibly even several years, depending on the battery type used to power the project.
MEMS Microphone Hookup Guide
Get started with the SparkFun analog MEMS microphone breakout board with Arduino! Create a volume unit meter with the ADMP401 or ICS-40180 to react to sound before building your sound visualizer!
Getting Started with Load Cells
A tutorial defining what a load cell is and how to use one.
Piezo Vibration Sensor Hookup Guide
How to combine a piezo sensor, high-value resistor, and an Arduino to create a vibration sensor.