Blog de Joe Freeman

The folks at Adafruit have put out a nice "NeoPixel shield" which is essentially an 8x5 addressable RGB LED strip built into an Arduino shield.  They have created a nice library available on github. You can see the project on their product web page .  Here is a picture of the board mounted on an Arduino Uno. The LED in the bottom right corner is LED 0.  The LED in the the bottom left corner is node 7.  The second row up is node 8-15 and so on.  The LED in the upper left corner is node 39. This picture shows the LED panel on my desktop. It totally overwhelmed the camera to the point that the rest of the room looks dark. Firmware I've created simple Arduino firmware that lets you send LED blinky commands over the Serial Port via USB.  You can set each pixel color individually along with one of 10 blink patterns.  Pattern 0 is off and pattern 1 is solid on so there are 8 actual blink patterns.  The firmware is located on github . The ...

Overview The Seeed Studio Rainbow Cube Kit is a 4x4x4 RGB LED kit with 64 tri-color LEDs for a total 192 connections. The kit comes with professionally designed components. A connector on the bottom of the kit is designed to mate up with the Seeed Studio Rainboduino which contains all of the drivers and connections needed to control an 8x8 tri-color LED array.  The LED cube comes nicely packaged with no installation instructions, schematics or hints.   The LED Cube does have it's own wiki page , which is probably the worst wiki page on the planet with no schematics, theory of operation or description of what kind of line driving is required by controller board. The LED cube wiki does contain a link to a slick Rainbowduino driver program. Assembly instructions are available on the Seeed Studio site. Robotshop has done an instructable and has the assembly instructions on their site. The Rainboduino is an Arduino clone specifically designed for ...