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4 Apr 2011

In this project it was used the “Piranha Super-flux RGB” Led of common anode, and the PIC18F25K20, in order to generate combinations of colors. It has two function modes, automatic that generate the color sequence that is stored in the μC memory, and the manual mode in which you can select one of the seven possible colors.

Super Flux RGB LED Controller – [Link]

29 Mar 2011

plastibots.com writes: [via]

I’ve been involved in microcontrollers for some time – but of the LEGO Mindstorms flavour (and BASIC Stamp to a lesser extent). Lately, I’ve jumped on the Arduino bandwagon. I’ve always had the natural nack to fix pretty much anything that has batteries or a plug running out of it. As the Arduino revolution has picked up dramatically over the past few years, so to has my desire to do DIY projects around the house. At some point in the future, we plan a kitchen reno. Part of that reno will the addition of under-cabinet LED lighting. Since that is far off, but I also had the need for better lighting in my office, I figured this would be a great time to proto something for the kitchen upgrade, while making something functional for the office. So, here it is..

Dual LED Desk Light Controller – [Link]

29 Mar 2011

“RGB Lights for Mykle’s Lightbar” – nice work! [via]

RGB Lights for Mykle’s Lightbar – [Link]

29 Mar 2011

Multiplexing is the most common technique for interfacing multiple seven segment LED displays to microcontrollers. Read this experimental tutorial to find out how this technique works.

Multiplexing Seven Segment LED Displays – [Link]

28 Mar 2011

Pal documented the basics of driving a color changing LED with an Arduino. [via]

RGB LED with Arduino – [Link]

25 Mar 2011

Citizen Electronics Co., Ltd. recently reported having developed the LMC10B series of LED lighting modules with built-in AC drive circuits using innovative circuit technology.

LEDs are usually driven by DC (direct current) power supply. Where an AC (alternating current) power supply is used, a DC converter circuit is needed. Issues to be resolved with DC power driven LEDs include the complexity of the circuit increasing the number of components, and electrical noise generated. [via]

AC powered 22 watts 1000 lumen LED module – [Link]

24 Mar 2011

bear24rw.blogspot.com writes:

Last year in one of my classes we were required to make an ‘artefact’ or something that reflects the interests of the class. Most people make posters and the past two quarters that’s what my class did too. Posters however are static, usually boring, and don’t reflect that fact that everyone in the class is an EE major. We decided posters are for noobs and decided to go off the wall a little and make an LED matrix display. Lucky one of my friends John Wathen already had this beautiful 16×24 Green SMD LED matrix that he built back in high school.

16×24 LED Matrix – [Link]

24 Mar 2011

Arduino based POV globe capable of displaying monocolour bitmaps upto 72 pixels high and x width. (uses 72 LEDs, and one input to get rotation speed)

Arduino byte array for images are generated using the c# program included in this project

Image displayed is synch’d to speed of motor using a reed switch, this allows image to display around hole globe correctly, and maintain a constant position.

Code has been added to move the image slowly (so globe rotates nicely)

POV Globe using arduino (atmega328P) and 72 SMD Leds – [Link]

24 Mar 2011

adafruit.com writes:

Todbot has a wonderful article on how to use the BlinkM Smart LEDs with Arduino programs. You will need a low cost AVR programmer, some additions to the Arduino environment, and simple hardware hookup.

BlinkM + Arduino = BlinkMuino – [Link]

24 Mar 2011

Steve Lodefink shows us this awesome World Control Panel he built with his son. [via]

My son Harlan and his friend love to play “agents” and he asked me if we coud build “a panel that has a bunch of switches that turn on some random lights”. We worked on it for about 3 weeks, and this is what we came up with. The panel boasts the following features:

World Control Panel – [Link]





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