HiLetgo STM32F103C8T6 ARM STM32 Minimum System Development Board Module STM32F103C8T6 Core Learning Board For Arduino The Board lead to all the I/O resources. Board of MCU-based basic circuits, such as a crystal oscillator circuit, USB interface and USB power management circuits, and so on. Use the current smart phones of Mirco USB interface, easy to use, USB communication and power supply can be done. Equipped with high quality 1*40/2.54mm spacing of single rows of pins, ensuring excellent conductivecontact Download with SWD debug interface, which requires a minimum of 3 wires to complete debug a download task You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!