You Are Here: Home » AVR ATmega Projects » Direction Aware Messaging LED Spin Top using Tiny44 microcontroller

Direction Aware Messaging LED Spin Top using Tiny44 microcontroller




Direction Aware Messaging LED

We recently built a LED spinning top with message display. Its an improved version of a similar top published by Elektor in their December 2008 issue. The Elektor top can be spun only in one direction. The synchronization required to print message on the LEDs arranged along the radius of the top is achieved by detecting the earth’s magnetic field.

Demo

video Direction Aware Messaging LED Spin Top

Our top can spin in either direction and print a message accordingly. In our improved version of the spinning top, we used 2-channels of magnetic field detector circuit placed 90 degrees apart along the circumference of the circular PCB, to provide quadrature phase output that allows the top to detect the direction of spin and thus is able to adjust the LED pattern appropriately. The top uses a Tiny44 microcontroller and is powered by 2×1.5V AAA size batteries with a MAX756 DC-DC converter to provide the +5V power supply to the circuit. The circular PCB was made on the Modela milling machine. For more Detail: Direction Aware Messaging LED Spin Top using Tiny44 microcontroller

This free embedded project also found using:

  • LEDs
  • l e d
  • gambar led
  • led images

About The Author

Number of Entries : 6710

Leave a Comment

You must be logged in to post a comment.

Read previous post:
Prototyping
Annoying Beeper using Microcontroller ATtiny13

Play a prank on your friends (enemies?) by hiding a high-pitched beeper which sounds off at random time intervals. This...

Close
Scroll to top