LED Gumball Machine

Turn a large voltage into a smaller one with voltage dividers. This tutorial covers: what a voltage divider circuit looks like and how it is used in the real world.

Understanding the Musical Instrument Digital Interface.

DMX512 is an industry standard in lighting and stage design, whether it be controlling lights, motors, or lasers, DMX512 has many uses. In this tutorial we’ll cover DMX512 (Digital Multiplex with 512 pieces of information).

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

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

Hookup guide and library usage details for the triple axis accelerometer H3LIS331DL high-g accelerometer.

Control LEDs based on your movement using an accelerometer! Make your LEDs breathe by fading in and out when laying on the floor, turn off the LEDs when moving to your side, or make the LEDs blink in a headstand!

The SparkFun STC31 CO2 Sensor can accurately measure CO2 concentrations up to 100% with high repeatability and long-term stability, thanks to humidity and temperature compensation provided by the built-in SHTC3. This tutorial will show you how!