LED Gumball Machine

Light is a useful tool for the electrical engineer. Understanding how light relates to electronics is a fundamental skill for many projects.

An introduction to the concept of Pulse Width Modulation.

What is an interrupt? In a nutshell, there is a method by which a processor can execute its normal program while continuously monitoring for some kind of event, or interrupt. There are two types of interrupts: hardware and software interrupts. For the purposes of this tutorial, we will focus on hardware interrupts.

Why external signals can cause metastability and how to use constraint files to manage this

The Panasonic GRID-Eye (AMG88xx) 8x8 thermopile array serves as a functional low-resolution infrared camera. This means you have a square array of 64 pixels each capable of independent temperature detection. It’s like having thermal camera (or Predator’s vision), just in really low resolution.

The gator:microphone is an I2C sensor for detecting sound with an electret microphone. This tutorial will get you started using the gator:microphone with the micro:bit platform.

A comparison of analog and digital temperature sensors. Which is better?

The pHAT to get your projects moving. This guide will help you get started using the Auto pHAT.