In this STM32 Nucleo tutorial, we will learn to use ADC and read analog input voltage using STM32CubeIDE and HAL libraries. We will discuss three methods to read ADC including polling, interrupt, and DMA method. This will be demonstrated with the help of an LED dimmer example where we will connect the potentiometer as an … Read more
In this STM32 Blue Pill tutorial, we will learn to use ADC and read analog input voltage using STM32CubeIDE and HAL libraries. We will discuss three methods to read ADC including polling, interrupt, and DMA method. This will be demonstrated with the help of an LED dimmer example where we will connect the potentiometer as … Read more
In this tutorial, we will show you how to use STM32 Blue Pill UART with DMA to transmit and receive data through direct memory access without requiring to involve CPU. In DMA mode, data can be transferred from UART RX data register to user memory without any CPU processing time. By using DMA with UART, … Read more
In this STM32 Blue Pill tutorial, we will learn how to configure and handle timer interrupts using HAL Library in STM32Cube IDE. We will demonstrate this through an example by toggling an LED after a set number of time. Timer interrupts in STM32 pause the sequential execution of a program loop() function for a predefined … Read more
In this STM32 Blue Pill tutorial, we will learn how to configure and handle external interrupts using HAL Library in STM32Cube IDE. We will demonstrate this through an example with a push button and an LED. Additionally, we will also show you how to measure Blue Pill interrupt latency via an oscilloscope measurement. Recommended Components … Read more
Interrupts are used to handle events that do not happen during the sequential execution of a program. There are two types of interrupts for the Arduino microcontroller. Hardware or external interrupt and Timer interrupt. In a previous tutorial, we looked at Arduino external interrupt where the interrupt was caused by is caused by the external … Read more
In this tutorial, we will learn to use interrupts and timers of ESP8266 NodeMCU using Arduino IDE. By using ESP8266 interrupt, we will be able to detect changes on GPIO pins without the need to continuously poll GPIO pins. Whenever an interrupt occurs, we can execute a certain function that should execute on state change … Read more
This tutorial focuses on an example project which shows motion detection through a PIR motion sensor. This PIR motion sensor will be interfaced with the ESP32 board and a 5mm LED. Through interrupts and timers of ESP32, the LED will be controlled. Whenever motion will be detected, an interrupt will be triggered, a timer will … Read more
In this tutorial, we will discuss how to use GPIO interrupts which are also known as external interrupts of 8051 microcontroller. We will learn to configure GPIO interrupts as edge-triggered such as positive or negative edge or level triggered such as active high or active low level triggered. Before reading this article, you should know … Read more