2Pcs STM32F401 STM32F401CCU6 Development Board V3.

2Pcs STM32F401 STM32F401CCU6 Development Board V3. Description

25MHZ high speed crystal oscillator & 32.768Khz 6PF low speed crystal oscillator
V3.0 version began to use lead-free process, the pin header is gold-plated pin header, more environmentally friendly
Flash pads have been reserved and USBDisk && FATFFS routines are provided
WeAct HID FW Bootloader has been burned out of the factory. It is a special factory test version, and hex is not provided.
Support MicroPython programming, provide available MicroPython firmware, see for configuration files, but do not provide technical answers!

Boards with version V1.3 and above have 3 buttons, reset button, BOOT0 button, and user buttons.
How to enter ISP mode
Method 1: and hold the BOOT0 button and the reset button under the power-on state, then release the reset button, and release the BOOT0 button after 0.5 seconds
Method 2:Hold down the BOOT0 key when power is off, and release the BOOT0 key 0.5S after power on
DFU mode:just use the data cable to connect to the computer, if there is a problem of unrecognized, you can properly heat the chip (25 Celsius), and then re-enter the ISP mode
Serial port mode:use USB to serial port to connect PA9 and PA10 of the core board
WeAct HID FW Bootloader
No need for USB to serial port, no debugger, no computer driver, just a TYPE-C data cable to complete the firmware download
and hold theKEY button, click thereset button, LED C13flashes, release theKEY buttonto enter
model:STM32F401CEU6
Colour:Black
Material:PCB

Package Contents:
2 * Development Board with pin

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.