LED Gumball Machine

Understanding the Musical Instrument Digital Interface.

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

A brief history of how ASCII came to be, how it's useful to computers, and some helpful tables to convert numbers to characters.

Let's have some fun with LEDs! We'll explore LEDs once again with the SparkFun RedBoard Qwiic, making cool effects, and putting those effects to work using a sensor.

Learn how to detect cosmic rays with this simple and cheap detector, built by Hacker in Residence Pete Marchetto.

Build a portable gas monitor to check for dangerous levels of hazardous gases.

How to connect and use the SparkFun Digital Temperature Sensor Breakout - TMP102 with an Arduino.

This tutorial will show you how to make a scale that logs your weight to a custom website on the Internet. The principles can be extrapolated to any type of data.