Bald Engineer

Creating real analog outputs from a digital pin is possible when you use an R-2R DAC. What is a DAC? The letters stand for D igital to A nalog C onverter. This simple DAC is built …

Can’t find the digital chip you need on Mouser or just wish you could make it yourself? With the FleaFPGA board, you can! As a college freshman, we heard rumors of a custom …

One of the most popular materials to use with a laser cutter is acrylic. Head over to buy some acrylic from Inventables and you’ll see options for “extruded” or “cast” types. Not …

A couple of weeks ago I was invited to join The Engineering Commons podcast to talk about capacitors on episode 93. I had been a listener of the podcast because I heard about it in …

This week I am moving! So I asked Andrew from Crash-Bang Prototyping to fill in. While not a tutorial, he has a very unique perspective on engineering, being that he lives in …

inside a laser diode One of the most versatile tools in a shop or makerspace is a laser cutter. The recently funded Glowforge makes having one in your garage a possibility. With so …

Ever need graph paper for a project, but can’t wait for Amazon Prime? No problem, this free online tool lets you generate graph paper on the fly. Multiple types of graph lines are …

Last week I had a detailed Arduino tutorial on software pulse width modulation using millis() and micros(). Why? Because I wanted to create a Proper Larson Scanner, with …

While I was attending a material science conference, I learned the value of listening to something new. The paper I came to see was finished, and the next was about to start. It …

The awesome hosts on The Engineering Commons (TEC) podcast asked me to join them on Episode 93-Capacitors! They told me I was the first passive component expert they had on their …