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We've seen LED cubes before, but [nick] upped the ante with his 8x8x8 LED cube that uses only three pins on his microcontroller. Previous LED cubes we've covered drove the LEDs with shift registers and latches, but [nick] used STP16CP LED sink drivers to reduce the component count. The STP16CP can control 16 LEDs each, can be cascaded off of each other, and can operate up to 30Mhz. With a … [Read more...]
Get out the soldering iron and clear your schedule, it's going to take you a while to assemble this 8x8x8 LED matrix which contains a total of 512 LEDs. We've looked in on a 3x3x3 cube, and [Chr], who is responsible for this one, has assembled a 4x4x4 cube before, but this one is quite a leap in complexity. It isn't just physical assembly problems that increase with scale, you'll need to consider … [Read more...]
[portreathbeach] built this simple 3x3x3 LED matrix. It uses a PIC16F690 in a ZIF socket for the brains. Each layer has nine LEDs with the cathodes tied together. The anodes from each LED are connected to the LED below. The LEDs are multiplexed so that even though all layers appear to be on, they're being addressed individually. He's included software, so you can build your own animations. Video … [Read more...]
Meet Cubli, a research project which aims to make a cube that can walk around without using any appendages. It's a research project at the Institute for Dynamic Systems and control in Switzerland. Anyone else thinking about our beloved companion cube right now? The robotic experiments are based on angular momentum. Inside of the cube there are center mounted motors which each spin a wheel. … [Read more...]
Building RGB LED displays is one of the most interesting programming and engineering challenges we see here on Hackaday. Not only do the creators of large displays and LED cubes have to deal with the power requirements of driving a whole bunch of LEDs, but there's also the issue of getting the frame rate high enough to display video. It's a non-trivial task, but [Paul Stoffregen] has an … [Read more...]
If you live in the Southeastern United States as I do, you've probably been enjoying a summer of grilling out and going to the beach or lake. You're also may be getting ready to enjoy football tailgating season, especially if you attend or live near a college town. Here's a couple of DIY items that should be welcome at any outdoor event you choose to attend. How to Make a Cornhole … [Read more...]
Originally, [Karman] wanted to build a speedometer for his bike. Feature creep makes fools of us all, so after a month of work [Karman] had a GPS-enabled cube that tells him his current latitude and longitude, current time, course, direction and speed. [Karman]'s GPS cube uses a cheap GPS module, Arduino Mini Pro, a magnificent OLED display, and a LiPo battery salvaged from a first gen … [Read more...]
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