What is CN10 in STM32?

In STM32 microcontrollers, CN10 usually refers to a connector on an STM32 development board, particularly on STM32 Nucleo boards. The connector numbers, such as CN7, CN8, CN9, and CN10, are printed on the board's silkscreen to identify specific pin headers or peripheral connectors.

Context of CN10:

• CN10 is one of the Arduino Uno-compatible connectors provided on STM32 Nucleo boards.
• It is part of the Arduino pinout layout implemented on the board to allow compatibility with Arduino shields.
• CN10 typically includes digital pins, power pins (like 5V and GND), and some communication interfaces.

Pinout:

The CN10 connector generally corresponds to the right-side Arduino-compatible header on Nucleo boards. It includes pins like:

• Digital I/O pins
• Analog input pins (optional, depending on the board)
• Power supply pins (e.g., 5V, 3.3V, and GND)
• Other peripherals like I2C, UART, or PWM pins (depending on board configuration).

Use:

• CN10 allows you to connect Arduino-compatible shields directly to the STM32 Nucleo board.
• It can be used for general-purpose input/output (GPIO), interfacing with peripherals, or experimenting with external components.

Key Points:

• It is not a specific feature of the STM32 microcontroller itself, but rather a hardware feature of STM32 Nucleo development boards.
• Always refer to the User Manual or schematics of your specific Nucleo board to confirm the pin mapping of CN10.