Compact and Portable Design: This mini serial data logger features a small and build, making it ideal for embedded systems, field data collection, and portable applications. High Compatibility: Supports data logging via UART serial communication and records data in universally readable TXT format, ensuring easy integration with microcontrollers and development boards. Reliable SD Card Storage: Equipped with an SD card holder, this module ensures stable and secure data storage, suitable for extended logging sessions and large data volumes. Easy to Use: Simple setup and operation with plug-and-play functionality, making it beginner-friendly while meeting the demands of professional developers. Versatile Applications: Perfect for scientific research, industrial monitoring, IoT development, and educational projects requiring reliable data acquisition and storage. This product is an intelligent storage module with an integrated FAT32 file system to achieve high-speed and reliable file management and data collection. The external TTL interface is used, and data can enter the module in real time through these interfaces. The module write the received data into a TXT file. It can be applied to environmental monitoring, power monitoring, flow data recording, temperature and humidity data recording, GPS observation data collection, quadcopter drone data recording, trajectory recording, various sensor data recording, etc. Note:Due to different production batches and random styles, designation is not accepted. Colour:As Shown Material:pcb Package Contents: 1 * mini serial data logger Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.