May 10, 2007 – Hacked Gadgets

Cornell University ECE 476 Microcontroller Design 2007 Final Projects

Alan Parekh May 10, 2007 13

Bruce Land over at Cornell University teaches a microcontroller design course that has the students get into groups and design cool projects. The ECE 476 Microcontroller Design Final Projects for 2007 are now posted on the course Web site. The projects include everything from a ultrasonic car parking aid to a laser pong game! Hacked Gadgets will be featuring some of these projects during the next few weeks. What are

Cool Gadgets

Magnetic Viewing Paper

Alan Parekh May 10, 2007 16

We can’t see magnetic flux lines but with an inexpensive piece of Magnetic Viewing Paper we can easily visualize what we are missing. I took the motor magnet out of an old 5 1/4 floppy drive and was amazed at the complex magnetic pattern that emerged. It looks like the outer ring of the magnet has magnetic notches that are read by the electronic circuit. I imagine this is used