LED cube not like others

Probably you’ve seen many LED cube projects – they all look cool. But to make a LED cube you need hell a lot LEDs and patience when soldering them. Any way results always pays off. But you know to make LED cube you can go different way – build a single plane of LEDs and then shake it at some frequency along with lighting sync. This is a very original idea of using simple shaker to 3D make cube effect of 2D LED matrix. The circuit with AVR controlled LEDS is fixed on Slotted steel which one end is also fixed to the table. Down below is a motor that rotates a weight on its shaft this way creating vibrations of 10Hz. Photo sensor detects the vibrating top point and this way synchronizes the show. In the dark effect looks really cool. To make things simpler Matt (author) wrote simple Visual Basic application to generate binary arrays of images that are stored in MCU memory. This project actually proves that there always is more than one solution to a single… Continue reading

The Easy to Develop High-Powered Persistence of Vision

Are you fascinating with the POV? If you did, then you have to stick your eyes on this article, as today’s you’ll learn how to develop a high-powered persistence of vision (POV)… Oh, by the way, for those who didn’t know, Persistence of Vision or it also known as “POV” is the phenomenon of the eye, where even nanoseconds of exposure to an image result in milliseconds of reaction from the retina to the optic nerves. This situation is due on chemical transmission of nerve responses and this biochemical hysteresis is actually much slower than the light transmission! For your information, there’s a story about POV called, “The myth of persistence of vision”, where it refers to the mistaken belief that human perception of motion is the final result of POV! Technically, a visual form of memory, iconic memory has been described as the cause of this POV phenomemon. For this high-powered POV project, an Atmel ATMega16 is used with an Atmel AVR Dragon. The most important step in this development is to make it turn around on a motor… Continue reading