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Motion sensitive LED belt featuring Adafruit elements

DanceBelt

Here’s an interesting motion sensitive LED belt project shared in the Adafruit Forums by Marshall Hampton:

Recently, I built a motion sensitive LED belt for a dance performance by my wife. In case it is of interest to others, this post will briefly describe how I made it.

I started with the LED belt kit by Adafruit, for which they supply an excellent tutorial. To this I added a 3-axis accelerometer, the ADXL335 from Adafruit.

Adding the accelerometer is very simple.  The 3V in and ground are soldered with short wires to the corresponding pins on the Atmega32u4 breakout board, and wires from the X,Y, and Z outputs can be soldered to the F4, F5, and F6 pins (see here or here for a good diagram).

After a lot of tweaking, here is the code we actually used for the performance.

Read more.


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Digital programmable LED belt kit: By popular demand, we now have a project tutorial for how to make your own programmable, ultra-blinky LED belt. Perfect for parties, raves, parades, weddings, funerals, and bar mitzvahs. Wear it with pride, wear it with blinky! Follow our soldering tutorial to build your own heirloom LED belt, and hand it down to your grandkids. (read more)


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ADXL335 – 5V ready triple-axis accelerometer: We’ve updated our favorite triple-axis accelerometer to now have an on-board 3.3V regulator – making it a perfect choice for interfacing with a 5V microcontroller such as the Arduino. This breakout comes with 3 analog outputs for X, Y and Z axis measurements on a 0.75″x0.75″ breakout board. The ADXL335 is the latest and greatest from Analog Devices, known for their exceptional quality MEMS devices. (read more)



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