Summary
- Blogger [bitluni] has shared details on an M.2 compatible LED matrix developed to add lighting to a motherboard.
- A CH32V208 microcontroller drives a 12x20 monochrome LED matrix and can be programmed to display art.
- The matrix was developed using an M.2 GPIO expander and serial interface, allowing it to be programmed upon connection to a device.
- To enable users to create displays, bitluni also built a web-based drawing tool that could send art directly to the matrix via serial.
- Although M.2 slots are traditionally used for solid-state storage, niche applications such as this are also useful.
By Lewin Day
Original Article