STM32 UART Polling vs Interrupts vs DMA - LED control example

The STM32F401RE Nucleo-64’s UART offers three methods—polling, interrupts, and DMA—to handle serial communication, each with trade-offs. The previous stm32 programming tutorial used LED control via a MAX232 and DB9 port from a PC. In brief, polling method continuously checks the UART stat…

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STM32 UART Polling vs Interrupts vs DMA - LED control example

The STM32F401RE Nucleo-64’s UART offers three methods—polling, interrupts, and DMA—to handle serial communication, each with trade-offs. The previous stm32 programming tutorial used LED control via a MAX232 and DB9 port from a PC. In brief, polling …

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STM32 UART Interrupts LED Control | STM32 Programming Tutorial 5

In the last UART controlled LED STM32 programming tutorial a led connected to STM32 Nucleo-64 board was controlled with message received from PC through the UART. In that tutorial HAL uart function HAL_UART_Transmit() and HAL_UART_Receive() were use…

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STM32F401RE Nucleo-64 Clock Sources and Their Functions

The STM32F401RE Nucleo-64 is a versatile development board from STMicroelectronics, powered by the STM32F401RE microcontroller (MCU). This ARM Cortex-M4-based MCU, running at up to 84 MHz, offers multiple clock sources that make it suitable for a wi…

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LED control with Serial Communication between PC and Arduino

Looking to control an LED using your Arduino and a serial connection? In this tutorial, we’ll show you how to use Tera Term(a popular terminal emulator) installed on a PC to send commands through a DB9 connector and MAX232 chip to turn an LED on and…

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Working Principle of the Pierce Oscillator

Crystal oscillators are essential for generating stable frequency signals in applications like RF circuits and microcontroller clocking. This guide shows you how to build a simple Pierce crystal oscillator for reliable frequency output. Why Use a…

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