Close

Prototypes ahoy

A project log for Analog CPU Gauge

An analog gauge to show your computer's CPU utilization

Adam FabioAdam Fabio 01/20/2014 at 02:480 Comments

​With motors in hand, I built up a quick prototype. The X27 motors are designed to only move a small pointer. They draw so little current (under 20ma at 5v) that they can be driven by PIC and AVR micro pins directly. Soldering wires to the thin pins of the motors can be a chore though, so I used a bit of strip board as a holder. I wired everything up to an Arduino Uno and ran Guy's code. The motor moved... but it was pretty hard to tell with just a piece of tape wrapped around the motor shaft. Prototyping showed I needed two things: Pointers and a PCB.

Discussions