Equipped with 's officially self-designed RP2040 microcontroller chip On board 3PIN SWD interface, used to connect the target board being debugged: 1. Standard CMSIS- interface, which can be used to debug most ARM based microcontrollers. 2. Suitable for OpenOCD and other debugging tools that support CMSIS-. 3. Using the same type of 3PIN debugging interface specification as 3PIN UART interface, which can be used to implement the function of USB serial port adapter 4PIN 12C interface, which can be used to test the target board 114 inches 240 x 135-pixel 65K color IPS LCD display screen The appearance of the label is slightly different, which does not affect the use. Colour:White Material:ABS Package Contents: 1x USB Development Board 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.