PCB Business Card
This simple little project was an exercise to practice making PCBs. The concept is simple; it’s a business card made out of a circuit board. On the front is a small ruler, in inches ...
Hello, I’m Zachary Ruhlen
Electrical engineer studying at Northeastern University. Experienced with analog & digital circuits, board layout, prototyping, and firmware. Enjoys hiking, community service, and staying active. Happy you're here.
Latest Projects
Electrocardiogram (ECG)
This was a project at the end of my Circuits and Signals class. The electrocardiogram (ECG) is a classic example of a lifesaving application of electrical engineering. The heart is c...
MIPS Computer
This was a class project for my Digital Design course that was the culmination of a semester’s worth of labs. The “computer” is a single-cycle, simplified MIPS processor designed...
The Commuter
This is an in-progress personal project inspired by my frustration trying to find all of the information important for my morning commute. Living in Maine in the winter presented a v...
Voltmeter Clock
This is a clock made from 3 analog voltmeters. The labels are self-explanatory; the left meter shows the hour, the middle shows the minute, and the right shows the seconds. The thr...