- This is a development and debugging tool that supports automatic firmware download, serial communication, JTAG online debugging, and other functions. - Power and compatibility: both interfaces can be supplied with 5V or 3.3V power through the Pin Header, providing strong power compatibility. - Easy to use: connect to a computer with a USB cable; the computer identifies two ports corresponding to the download function and the JTAG function. - Connectivity to breakout boards: can be connected with a wire to a breakout board, and the connector is packaged with two pitches of 2.54mm and 1.27mm. - Use scenarios: - Microcontroller firmware development: use automatic firmware download and JTAG debugging to accelerate iteration and validation. - Embedded system debugging: use serial communication to monitor, log, and interact with the target device during development. - Prototyping and evaluation: connect to breakout boards via wire, using either 2.54mm or 1.27mm pitch connectors to suit your hardware layout. - Key attributes at a glance: robust function set for development and debugging, broad power compatibility through Pin Header, USB ease of use with automatic port recognition, and flexible breakout connectivity with two connector pitches.