[Upgrade] Low cost and high stability, it can replace the basic program of STM32F103C6T6 chip. (If your program flash is less than 32K, RAM is less than 10K, and Timer 4 and Serial 3 are not used, you can use it instead) ST-Link V2 Programmer: supports a full range of STM32 SWD debugging interfaces, simple 4-wire interface (including supply), fast and stable interface definition shell directly marked 40pin STM32F103C6T6 minimum system board: -USB connector, which can the board and communicate with USB. Added 5V output, and the output I or O port is protected, for fear of operation errors caused by damage to ST-LINK V2 Colour:Random Color, don't accept the specified color Material:Plastic and Metal Package Contents: 1 x STM32F103C6T6 development board (unwelded pin header) 1 x ST-Link V2 downloader (random color, don't accept the specified color) 1 x line (random color, don't accept the specified color) Only the above package content, other products are not included. Note: Light 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store