Specification: _x005f_x000D_ Origin: Mainland China _x005f_x000D_ Type: Module _x005f_x000D_ Condition: New _x005f_x000D_ Size: 47 * 18 * 7MM/1.85x0.71x0.28inch _x005f_x000D_ 1. Application scope _x005f_x000D_ (1) USB to TTL, serial communication _x005f_x000D_ (2) . arduino board download program _x005f_x000D_ (3) . 51 microcontroller download program _x005f_x000D_ 2. Instructions for use _x005f_x000D_ (1) When using a regular USB to serial port, only VCC, GND, RXD, TXD need to be connected _x005f_x000D_ (2) When programming the Arduino, connect VCC, GND, RXD to the Arduino board's TXD, TXD to the Arduino board's RXD, and RST to the Arduino board's RST (reset port) _x005f_x000D_ 3. Precautions _x005f_x000D_ (1) The output current of the 3.3V power port should not exceed 100MA, otherwise it may cause unstable communication or even damage the module _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 x PL2303 USB to TTL Serial Module 1. Built-in 500mA Self-Recovery Fuse: This USB to TT serial module is equipped with a self-recovery fuse that provides protection to your computer's USB port. The fuse helps prevent damage from power surges or short circuits, ensuring the safety and longevity of your devices. 2. Automatic Reset Port: With the automatic reset feature, programming an for Arduino board becomes seamless and hassle-free. You no longer need to manually reset the board when uploading new programs, saving you time and effort. 3. Stable Transmission: This USB to TT converter module delivers stable and reliable data transmission, supporting baud rates of up to 1.2M. Whether you're transferring large files or streaming data in real-time, you can count on this module to maintain a consistent and smooth communication flow. 4. Versatile Compatibility: Compatible with various platforms and operating systems, including for Windows, Mac OS, and Linux, this USB to TT adapter ensures broad compatibility with different devices. It seamlessly integrates into your existing setup, making it suitable for a wide range of applications. 5. Easy to Use: Designed for user convenience, this USB to serial adapter is easy to set up and operate. Simply connect it to your computer's USB port and start utilizing its features. Its simplicity and user-friendly design make it suitable for beginners and experienced users alike.