Organize and Share your Electronics the way you want. Sign-Up for a free account now. It takes only 30 seconds!

USB powered desktop decoration LED lights

USB powered desktop decoration LED lights

Image Courtesy; www.manvilleshow.com

Most of us love to decorate things around us to make it look better. In fact attractive environment can set and enlighten the mood to a great extent. Adapting this idea and using this design you can perform your desktop decoration in workplace, home etc using LED’s.  And the best thing about the design is it is powered by System USB port no power special power supply arrangement required.

CIRCUIT DIAGRAM:

desktop-pc-led-decorative-lights-circuit

WORKING OF CIRCUIT:

This decorative lights was powered by system USB port which gives 5V/500mA as output. This design was intend to lit up the speakers placed near the your PC. The LED section was categorized into two groups one for the Left speaker and another for the right. Each groups contains 2-Red, 2-green and 2- Blue LED’s for decoration. The calculation is as follows

Red and Green LED’s operate at 2v/20mA. Since Red and Green LED’s are connected in series current consumption remains same. So the current limiting resistor

R1 = ( Vcc- LED voltage ) / Current

R1 = ( 5 – 4 )/ 20mA

R1=  50 Ohm.

Blue LED’s operate at 3v/30mA. So the current limiting resistor is

R2 = ( Vcc – LED voltage ) / Current

R2 = ( 5 – 3 ) / 30mA

R2 = 60 ohm.

The total current consumption by a single group that is Red, blue and green LED’s two each is given by

Itotal = 2 x ( 20 + 30 ) mA

Itotal = 100mA.

Each group takes 100mA making the total current consumption to 200mA. You can add, replace combine LED’s but make sure it takes only upto 500mA. I hope the idea was clear so now you have to figure out how to build and where to place the LED’s around your desktop. Think of creative combinations and make your Desktop environment attractive. Here are some ideas for you.

led-desktop-pc

Lights behind Desktop

fish-tank-desktop

Lights in your fish tank

desktop-speaker-led

Lights under your speakers

led-desktop-pot-plants

Lights in your mini pot

NOTE:

  • The above added images are of illustrative purposes and not a product came out of the circuit design.
  • Put your creativity in work and you might get a stunning desktop environment, All the best.

Read more Here







 

More Articles to Read

App note: SOLERIQ® L38
App note: SOLERIQ® L38
How to build a DIY Penta colored star LED light
How to build a DIY Penta colored star LED light
Keychainino: a programmable, playful Key Ring
Keychainino: a programmable, playful Key Ring
Accurately simulate an LED
Accurately simulate an LED
TritiLED – Multi-year always-on LED
TritiLED – Multi-year always-on LED
850nm infrared LED outputs 770mW at 1A
850nm infrared LED outputs 770mW at 1A
Wireless mood light with Arduino & BLYNK
Wireless mood light with Arduino & BLYNK
Stunning RGB light effects using Arduino Nano
Stunning RGB light effects using Arduino Nano
Smart LED Flashlight
Smart LED Flashlight
Proteus Tutorial – Light Emitting Diode (LED) and Bar Graph Display
Proteus Tutorial – Light Emitting Diode (LED) and Bar Graph Display
AVR vs PIC: The case of the candle
AVR vs PIC: The case of the candle
Arduino 8×8 LED Matrix using MAX7219
Arduino 8×8 LED Matrix using MAX7219
Dark Sensitive Switch – LED Light
Dark Sensitive Switch – LED Light
384:LED – Mini RGB LED array
384:LED – Mini RGB LED array
Sound to Light Effect
Sound to Light Effect
Making the threat of radiation visible with lightmapping
Making the threat of radiation visible with lightmapping
LED current regulator has low dropout
LED current regulator has low dropout
Interfacing 8×8 LED Matrix with Arduino
Interfacing 8×8 LED Matrix with Arduino
A Smart Night Lamp for Kids
A Smart Night Lamp for Kids
Researchers develop LED covering full visible light spectrum
Researchers develop LED covering full visible light spectrum

Top


Shares