Regardless of the size or shape of the LED, it can inspire the curiosity of every hardware enthusiast and is the lifeblood of the badge life on earth. Then there is the LED cube, which can carry LEDs in all directions-literally. [Tomverbeure] Have his own adventure of creating LED Cube Piece together Pixel Wallet and Cisco3G Modem.
A quick search of Pixel Purse on the Internet will find a toy lady handbag with an LED matrix embedded on one side. [tomverbeure] Remove 12 of them to get two panels for each side of his creation. After some experiments on the PCB corner brackets, he finally got it right, and he was able to merge these parts together to form a cube.
Next is the brain and selected equipment from the FPGA of the HWIC-3G-CDMA modem. Cisco routers have expansion slots, and the HWIC connector on this particular part has available GPIOs that connect directly to the Altera FPGA. Inside the FPGA, the RISC-V soft CPU is used to generate images that are processed and dispatched in the hardware block. [Tomverbeure] It explains in detail the implementation of all blocks written in SpinalHDL. The video below shows the project in action.
We like details [Tomverbeure] Provide and hope that it will not increase the price of the pixel wallet too much. If you are looking for a more refined cube, then this is your best choice. If you end up making it yourself, be sure to send us a link.