What is it? The ProtoLink PL-AirSD-01 is a DIY-oriented Wireless SD Card module that enables wireless access to microSD card storage for embedded systems and prototyping applications. It comes with a preloaded, ready-to-use firmware that provides web-based control and file management, supporting a maximum wireless data rate of 500 kbps. The module is designed for low-to-moderate bandwidth use cases such as data logging, configuration management, and remote file access.

Why did you make it? Many embedded and DIY projects require SD card access but make physical removal inconvenient or impractical. The PL-AirSD-01 was created to simplify SD card interaction by providing a wireless interface with built-in firmware, reducing development time while still allowing full flexibility for custom applications. It helps makers move quickly from prototype to working system without needing to build wireless file-handling firmware from scratch.

What makes it special? Ships with inbuilt firmware featuring a web interface for user login, Wi-Fi configuration, operation mode selection, file upload/download, folder creation, file search, and directory file count Supports a maximum wireless data rate of 500 kbps, optimized for stability and reliable operation Fully hackable — users can upload and run their own custom firmware Comes with a custom 3D-printed enclosure for protection and easy handling Designed for DIY, maker, and embedded experimentation, not locked to a single application