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A LED bracelet that can be controlled with Bluetooth to change colors.

Step 1: Getting the Parts

For this project the equipment you will need are:

  • Arduino Pro Mini 328 - 5V/16 MHz
  • PowerBoost 1000 Basic - 5V USB Boost @ 1000mA from 1.8V+
  • Bluefruit EZ-Link - Bluetooth Serial Link & Arduino Programmer - v1.3
  • Adafruit NeoPixel Digital RGB LED Strip - White 60 LED - WHITE
  • Premium Female/Male 'Extension' Jumper Wires - 40 x 6"
  • Premium Male/Male Jumper Wires - 40 x 3"
  • FTDI Serial TTL-232 USB Cable
  • Cuff Leather Bracelet (2)
  • Leather Strip
  • Soldering Iron
  • Solder Wire
  • Bondic Glue
  • Cloth
  • Beads (Optional)

This project cost me around $90 in electronics.

Step 2: Creating the Code

To program this project I used two programs: Processing and Arduino.

Processing:

I wrote a code to create a color spectrum that when clicked it would print the RGB of the color clicked.

Arduino

This code told the ardunio pro mini where to pull the RGB of the color to display.

Step 3: Soldering the Parts and Pieces

  1. Solder the PowerBoost 1000 Basic to the Arduino Pro Mini
    • 5V from PowerBoost goes to Raw on Pro Mini
    • GND from PowerBoost goes to GND on Pro Mini
  2. Solder the Bluefruit EZ-Link to Arduino Pro Mini
    • RX from EZ-Link goes to TX on Pro Mini
    • TX from EZ-Link goes to RX on Pro Mini
    • VIN from EZ-Link goes to VCC on Pro Mini
    • GND from EZ-Link goes to GND on Pro Mini
  3. Solder pins into the six end placeholders on Arduino Pro Mini for connection to
  4. Solder NeoPixels to Arduino Pro Mini
    • GND from NeoPixels goes to GND on Pro Mini (you will have to have multiple GND wires attached)
    • Din from NeoPixels goes to number on Pro Mini
    • 5V from NeoPixels goes to VCC on Pro Mini (you will have to have multiple wires attached to VCC)
  5. Cut NeoPixels into strips that fit leather band length and solder together with extra wires
  6. Use bondic to glue extra strip of leather between the two bands to have a thick enough band
  7. use bondic to glue the completed electronics assembly to the bands

Step 4: Connecting to Bluefruit

Following these instructions connect your powered Bluefruit EZ-Link to your computer to wirelessly control your NeoPixels' colors. Click Here

Step 5: Docorate

Add a piece of cloth over the top, while leaving access to the USB port for charging, to complete this project.

Optional:

Add beads to the cloth before attaching to reflect the light.

<p>Interesting project!</p>

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