Learn about Electronic Components -
This page is dedicated to students in electronics or anybody who has
an interest in learning more about the stuff that is found inside our modern
day gadgets
Photo of the ceramic resonator found in the Rolee Polee handheld
trackball. What is a ceramic resonator? This ceramic resonator is
connected to the IC chip on the flip side of the circuit board. The
ceramic resonator is used to generate semi-precise frequencies.
Every Rolee Polee comes with a ceramic resonator!
I think most people will be able to identify this component. In case
you don't know it's called a capacitor. A capacitor is used for
filtration in electronic circuits. It is a component that stores
electrical charge in an electrical field. Every Rolee Polee comes
with 1 capacitor.
Here is a photo of the optical sensor. See that notch in the sensor?
That's where the chopper wheel is positioned right in that notch.
Here's a photo of the top side of the Rolee Polee circuit board.
Here you can see the 2 optical sensors. There is one sensor for
horizontal movement and one sensor for vertical movement. There are
2 micro-switches at the top. These are for the 2 mouse buttons on
the top of the Rolee Polee next to the trackball.
Here's a photo of the bottom side of the Rolee Polee circuit board.
Here you can see the IC chip that controls the Rolee Polee.
Here is a side by side comparison between the old Rolee Polee
circuit board and the new 2009 circuit board.
The Rolee Polee is powered by a USB cable. Here you can see the 4
wires that make up a standard USB (universal serial bus) cable.
Learn Basic Electronics
Video: Make Your Own Printed Circuit Boards on a LaserJet!
