LED Gumball Machine

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Contributors: 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.

I2C

An introduction to I2C, one of the main embedded communications protocols in use today.

What is a Battery?

An overview of the inner workings of a battery and how it was invented.

Lessons in Algorithms

Learn techniques on how to use Finite Impulse Response (FIR) filters and other data-processing tools to turn data into information.

MMA8452Q Accelerometer Breakout Hookup Guide

How to get started using the MMA8452Q 3-axis accelerometer -- a solid, digital, easy-to-use acceleration sensor.

Magnetic Levitation

This tutorial will show you how to build a magnetic levitation circuit using common parts.

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.

SparkFun Temperature Sensor - STTS22H (Qwiic) Hookup Guide

Get started with the ultralow-power, high-accuracy, qwiic-enabled SparkFun Temperature Sensor - STTS22H!