STM32 UART Transmit 🚀

This project demonstrates UART transmission on STM32F446RE using HAL drivers.
It sends the string "Hello" repeatedly every 1 second via USART2 at 9600 baud rate.

🧩 Hardware

• MCU: STM32F446RE (Nucleo Board)
• UART Port: USART2 (TX - PA2, RX - PA3)
• Baud Rate: 9600

⚙️ Software Setup

• STM32CubeIDE
• HAL Library enabled for UART2
• System Clock Source: HSI (16 MHz)

💡 Output

Open a serial terminal (like PuTTY or Tera Term or Realterm):