The PWR power indicator is added to improve the human-computer interaction experience of plugging in the USB power supply. Change the microUSB interface of to Type-C of YD-RP2040 core board, the USB interface is convenient for users to find related USB cables. A reset button is added to facilitate the user to reset and update the firmware in the power-on state. Add USRkey user button, which is convenient for user verification and simple input function. The RGB light group is added, which is convenient for users to operate. The RGB light group reflects information through the brightness of the red, green and blue lights. Type: Development Board Colour: Black Material:PCB Style: 16MB Size: 53.34 x 22.86mm Package Contents: 2 x Development Board 6 x Pin Header 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.