Motion Sensing Eye using arduino

Motion Sensing Eye

I have always wanted to make something with my LED dot matrix display, and so when I found a old alarm motion sensor I knew just what to make, a Motion Sensing Eye!


This instructable will hopefully finish with you having a working dmd, that will display an eye that opens if something in a room moves (above in the pictures are some gifs of it in action). This instructable will also be updated with bluetooth and android support in the near future (when I get it working).

Anyway, Let’s Go!

Update (05/02/14):
– added optional shieldMotion Sensing Eye

Step 1: Materials

Things you will need:

– An Arduino or similar
– A Freetronics Dot Matrix Display
– Arduino link cable for dmd
– An alarm sensor
– Mini breadboard and jumper cables
– A 10k resistor
– Power supply for the alarm sensor
– Usb cable for arduino

– Arduino Prototype shield
– Stackable headers
– Wire
– Tactile push buttons
– Terminal Blocks
Coming Soon Eventually:
– Arduino compatible bluetooth module
– bluetooth dongle for PC
– An android phone

Step 2: The Freetronics DMD

The dot matrix display I have used for this project can be found here
It features a 32×16 LED display, giving you a total of 512 high brightness LEDs to play with.
Two extra libraries are needed for the Arduino IDE, and these can be found here and here

Congratulations, your dmd is working correctly


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