- Tue Feb 28, 2017 2:11 pm
#193655
I am playing with a SparkFun experimenter kit that includes a servo motor. The tutorial code is complicated (to a beginner) and the effect is difficult to follow. The Inventor's Guide mentions libraries, and provides a link: arduino.cc/en/Reference/Libraries. The example that I am looking at is the potentiometer knob. A knob came with my kit. I wired it up. Twist the knob one way, the servo turns the same direction, 180 both ways. Cool! Simple enough even I can understand it. In a bag of micro parts salvaged from busted gadgets I noticed a cooling fan with three wires. I want to try it with the knob-server code. My question is, before I attach pins to the wires so it will plug into a breadboard, can I expect the fan to respond like a servo? And, if not, why does a cooling fan have 3 wires? Any referrals to projects that explain a 3-wire fan are appreciated.