Bald Engineer

Note: The IRC Channel (along with all of Freenode) got nuked. While the Arduino Project Team provides their official Arduino forums, sometimes real-time help is just a bit better. …

When Serial data is transmitted to an Arduino, it is sent one byte at a time. Even though you might type “123” in the Serial Monitor, that’s not quite what is sent. Instead the …

Based on a question from Andrew on the initial Multitasking with millis() tutorial, this example shows how to create a Police-Light like strobe effect. The following code uses no …

Creating PCBs in Eagle is a straight-forward process once you understand how EAGLE works. In fact, most users can get up to speed enough to draw a Schematic and then layout a …

Did you know it is possible to toggle the state of a Arduino OUTPUT pin using a single line of code? It’s true! It’s also possible to use digitalRead() on an OUTPUT pin. Assuming …

Do you know who Paul Falstad is? If not, you really need to get to know him, or at least, his web site. He’s a Geocacher, a Java programmer, and a Math nerd. [Editor’s Note: I …

Cathode from Secret Geometry is, hands down, my favorite Terminal Emulator for OSX. It is, in my opinion, (near?) perfect emulation of classic computer terminals from the 1980s. …

Martin Rowe over at Test & Measurement World published an article quite some time ago (1994) that explains what it means when a DMM claims to have “½” digits in their display. …

A very little known feature of EAGLE is the ability to type commands instead of clicking an icon on the toolbar. This can come in handy when trying to perform multiple actions like …

The quick answer to “How do you reset millis()” is: You Don’t! And here’s why: if you did, it would potentially break most libraries and functions that rely on it. Generally the …