Doctor Pasquale’s Blog

I’ve decided to post a link to my blog. My goal is to start writing more about the digital logic and microcontrollers project that I work on, to act as help and inspiration for my students. Occasionally I also write about my other passion, which is flying airplanes. Don’t expect updates terribly frequently, however. 🙂

Keeping a project notebook

Keeping a project notebook

Keeping a record of the projects that you build is more important than you may think. Even if you have really well-commented code saved somewhere, or a schematic, it’s still really helpful to keep notes in a project notebook. Each of my projects gets written up in my notebook, which is open on my table …

Cleaning Up a 555 Timer Signal

Cleaning Up a 555 Timer Signal

Sometimes a 555 timer does not output a great square wave from 0-5 V. In this case, when using it as a clock source for a flip-flop, a bad 555 timer output can lead to missed clock pulses and seemingly strange behavior on the output. To correct this, use one or two Schmitt inverters (7414) …

Creating Hobby Project PCBs

Creating Hobby Project PCBs

The purpose of this post is to make the design process of creating printed circuit boards (PCBs) a little less scary. Please note that, as with most of the hobby stuff on my website, I am self taught. This means that I use auto-routing, don’t worry about ground planes, and the most difficult thing I …

Day 4: Traverse City, MI to Holland, MI

Day 4: Traverse City, MI to Holland, MI

Stats for the day: 3.5 hours flight time 10 landings, 2 full stop Airports: 5D5 (Woolsey Memorial), Y87 (Empire), KFKS (Frankfort), KMBL (Manistee County), KLDM (Mason County), C04 (Oceana County), KMKG (Muskegon County), 3GM (Grand Haven), KHLM (Park Township), KBIV (West Michigan Regional) 17.1 gallons of 100LL burned Today is the penultimate day of my …