Features: The serials port emulator debugger simplifies electronic device communication via PC serials terminals, reducing prototyping efforts for new chips with protocols like I2C, SPI, and UART. Key features include USB connectivity and power, 5.5V pin tolerance, 0-6V measurement probes, 1Hz-40MHz frequency measurement, on board 3.3V/5V power supplies, software reset, and support for programming and scripting. This debugger tool is designed for electronics engineers, hobbyists, and developers working on embedded systems, communication devices, or prototyping projects. Ideal for use in scenarios such as debugging serials interfaces, testing new integrated circuits, developing protocols, or analyzing low speed in communication accessories. Enhances your workflow with easy USB firmware updates, USB to serials bridge mode, and commands for efficient bus interfaces management across various applications. Specifications: Component: Plastic Voltages Measurement: 0-6V Frequency Ranges: 1Hz-40MHz Power Port: USB Size: about. 4cm/1.57in Package Includes: 1pc serials Debugger note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.