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M.2 Interface-Compatible LED Matrix Assembly Construction
An inventive individual, going by the handle [bitluni], has devised an unconventional use for the M.2 slot, traditionally utilized for solid-state storage devices. Instead, he has fashioned an LED matrix that slots into the M.2 interface, illuminating one's motherboard with a charming display of lights.
The LED matrix was connected to a CH32V208 microcontroller, responsible for managing the 12x20 monochrome LED matrix via a serial interface. Impressively, upon initial connection, the microcontroller could be programmed thanks to its bootloader supporting serial programming out of the box. Despite some initial hurdles necessitating rework and modification, the LEDs were soon lighting up with impressive synchronization.
[Bitluni] also developed a web-based drawing tool that sends artwork directly to the matrix over serial. While this creative application is not the norm for M.2 slots, it could become an appealing accessory for a custom computer build, especially for those with spare slots.
Those interested in learning more about M.2 slots can refer to our previous articles on the topic. Here, we delve into the key components and steps for emulating [bitluni]’s LED matrix project.
- To create an M.2 slot LED matrix display, begin by selecting an appropriate interface, such as PCI Express (PCIe), considering pace and available robust interface chips.
- Choose a compatible microcontroller, in this case, the CH32V208, and ensure it boasts a bootloader with serial programming support for convenience.
- Connect the serial output to the chosen microcontroller and integrate a suitable LED matrix.
- Develop software, such as a web-based drawing tool, to send images to the microcontroller, which will then update the matrix.
Implementing this approach demonstrates the flexibility of the M.2 slot for creative projects beyond storage, as shown by [bitluni]’s LED matrix display. With the right interface chips and microcontroller, the M.2 slot can be repurposed for custom lighting or display projects. Keep in mind the importance of physical layout, power supply management, troubleshooting, and visual effect when undertaking your project.
- This creative LED matrix display, developed by [bitluni], can be paired with smart-home-devices and gadgets, as it uses technology such as the CH32V208 microcontroller and can be programmed via serial interfaces.
- Additionally, the unconventional use of the M.2 slot for a LED matrix display by [bitluni] opens up possibilities for programming the slot to control other technology like lights in a smart-home setup.
