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Tag Archives: Interrupts
ESP32 Arduino: Alarm with PIR motion sensor and buzzer
In this tutorial we will check how to create a very simple alarm system with a buzzer and a PIR motion sensor. We will be using the Arduino core, running on the ESP32. The tests were performed using a DFRobot’s ESP32 module integrated … Continue reading
Posted in ESP32
Tagged Alarm system, Arduino, Buzzer, Duty Cycle, ESP32, Interrupts, ISR, LEDC, motion sensor, PIR, PWM
2 Comments
ESP32 Arduino: PIR motion sensor and interrupts
In this tutorial we will check how to interact with a PIR motion sensor using an interrupt based approach, using the Arduino core running on the ESP32. The tests were performed using a DFRobot’s ESP32 module integrated in a ESP32 development board, and … Continue reading
Posted in ESP32
Tagged Arduino, ESP32, FreeRTOS, Interrupts, ISR, motion sensor, PIR, Semaphore
1 Comment
ESP32 MicroPython: External interrupts
The objective of this post is to explain how to use external pin interrupts on MicroPython running on the ESP32. The tests were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board.
Posted in ESP32
Tagged ESP-WROOM-32, ESP32, External interrupts, FireBeetle ESP32, Interrupts, Microcontrollers, MicroPython, Pin interrupt, Python, uPyCraft, uPython
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ESP32 Arduino: External interrupts
The objective of this post is to explain how to handle external interrupts using the ESP32 and the Arduino core. The tests were performed on a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board.
Posted in ESP32
Tagged Arduino, ESP-WROOM-32, ESP32, Espressif, External interrupts, FireBeetle ESP32, Interrupts
21 Comments
ESP8266: DS3231 alarms once per second
The objective of this post is to explain how to configure the DS3231 to generate an alarm interrupt every second, using the ESP8266.
Posted in ESP8266
Tagged Alarms, Arduino, DS3231, DS3231 Alarms, ESP-01, ESP8266, External interrupts, Interrupts, NodeMCU, Real time clock, RTC
4 Comments
ESP8266: External interrupts
The objective of this post is to explain how to handle external interrupts with the ESP8266.
Posted in ESP8266
Tagged Arduino, ESP8266, Interrupt Service Routine, Interrupts, ISR, NodeMCU, prototyping
12 Comments
Counting time with interruptions
This tutorial explains how to create an internal representation of date and time in a microcontroller, using interruptions.
