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Smart Christmas Star

About the project

Choose your own color & Control the Christmas star via Phone.

Project info

Difficulty: Easy

Platforms: AndroidNXPAndroid Things

Estimated time: 4 hours

License: GNU General Public License, version 3 or later (GPL3+)

Items used in this project

Hardware components

LED - SMD RGB LED - SMD RGB x 1
NXP 32-bit MCU, Power Arch core, 512KB Flash, 64MHz, -40/+105degC, Automotive Grade, QFP 64 NXP 32-bit MCU, Power Arch core, 512KB Flash, 64MHz, -40/+105degC, Automotive Grade, QFP 64 x 1
NXP 32-bit MCU, Power Arch core, 512KB Flash, 64MHz, -40/+105degC, Automotive Grade, QFP 64 NXP 32-bit MCU, Power Arch core, 512KB Flash, 64MHz, -40/+105degC, Automotive Grade, QFP 64 x 1
Ultrasonic Sensor HC-SR04 Ultrasonic Sensor HC-SR04 x 1

Software apps and online services

RGB Star Android App RGB Star Android App https://play.google.com/store/apps/details?id=com.ashok.rgbstar&hl=en_US
LPCXpressoIDE LPCXpressoIDE

Hand tools and fabrication machines

Soldering Station Soldering Station x 1

Story

Hello Guys!

Every year when Christmas arrives, i used to make my own version of 5 point star.I have a video tutorial on "Making of X-Mas Star" here have a look and try it yourself. I 'm little bored of doing the same thing every year, for  change this time i made the  "RGB Christmas Star".

The Idea is controlling RGB led from smart phone via Bluetooth. I had chooses small ARM controller (LPC810) from NXP because of less pins also its available in DIP package.To drive the LED 3 PWM signals from LPC810. BT module HC-05 is commonly available in market, it establish the communication between my smart phone and the MCU.

Hardware side nothing much,RGB LED is  directly soldered to LPC810, and the other end 3.3v regulator i made to power the LPC810 and LED's.

And finally this setup is sit inside the Christmas Star with 5v USB power cable.

For mobile , i had created an android application for picking up the color and send the RGB values to MCU over blue-tooth. The MCU process the value and generate the PWM values according to the color selection.

Checkout the Working Video here!  Happy Christmas!

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Schematics and circuit diagrams

RGB Star Schematic

Regulator IC may be different one

Code

RGB Star Source

Credits

Photo of ashokr

ashokr

Hello! I’m Ashok. I’m currently working as software engineer. passionate about doing Hobbies Projects and Animations works.

   

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