fix interrupt in AVR


I made this circuit: [url removed, login to view]

And this code: [url removed, login to view]

There's a led in PB1 and a button in PB3. When the button is pressed, PB3 pin change its state from high level to low level, this produces an external interrupt. The code of this interrupt, makes the led turn on for 100ms.

But this code, turn ON the led everytime the button is pressed/released, that means everytime PB3 change its state.


I want the led to be turned ON, just when the button is released. (Make this by using interruptions)

Compétences : Programmation C, Microcontrôleur

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N° du projet : #14065391

27 freelance ont fait une offre moyenne de 26 $ pour ce travail


Hello Dear, I am an expert with more than 15 years of experience in the field of embedded systems, electronics and programming. I have all the development tools and hardware to develop the solution. Regards Plus

50 $ USD en 3 jours
(23 Commentaires)

FREELANCER RECOMMENDED ------------------------------------------------------ Can help... I am an Expert... Lets Start! Please start a Discussion with me and we can get started from there... Please check the past p Plus

25 $ USD en 1 jour
(6 Commentaires)

Hi, You can easily check for the pin (PB3) value in the ISR and if it is high so it is rising edge. Best Regards, Ahmed

25 $ USD en 1 jour
(11 Commentaires)
45 $ USD en 1 jour
(18 Commentaires)

dear Sir i can do this project. I can assure you that if you work with me once, you will always work with me for these kind of projects.

25 $ USD en 1 jour
(10 Commentaires)

buenas, tener delay en el ISR es mala idea, la mejor opción es usar una variable para detectar el cambio y hacer el resto en otra parte del código... incluyendo el filtro para el botón. Puedo solucionar el problema y Plus

30 $ USD en 0 jours
(3 Commentaires)

hi, solution change this line MCUCR &= ~(1<<ISC01) | ~(1<<ISC00); // Trigger INT0 on rising edge to MCUCR &= ~(1<<ISC01) | ~(0<<ISC00); // Trigger INT0 on rising edge let me know

25 $ USD en 1 jour
(3 Commentaires)

#include <avr/io.h> #include <avr/interrupt.h> #include <util/atomic.h> #include <util/delay.h> #include <stdbool.h> /* * A global flag used to communicate between the Interrupt Service Routine * and the mai Plus

55 $ USD en 0 jours
(4 Commentaires)

A proposal has not yet been provided

30 $ USD en 1 jour
(4 Commentaires)

Hi,Client. I have 13+ years experience in circuit, PCB design, manufacture and assemble, firmware and application. I had developed many products ago using various microcontroller including STM32 serial, Arduino, Ras Plus

30 $ USD en 3 jours
(2 Commentaires)

I can do it for you; just need to re-config interrupt , and modified the code Thanks

25 $ USD en 3 jours
(1 Commentaire)

Hi there. Having worked with Atmel AVR controllers quite a lot, I feel like this feature will be quite simple to implement and I will ideally provide the completed program in under a day. Please feel free to contact me Plus

25 $ USD en 1 jour
(1 Commentaire)

Hello Salvador, The task looks pretty simple. I think, I cam provide you with correct code my evening. As I see, you use _delay_ms in interrupt routine. This is not good. Interrupr routine should finish as soon as Plus

30 $ USD en 0 jours
(3 Commentaires)

Hi, I am an Electronics & Mechanical Engineer and I have experience on embedded software/system development and control system design over 7 years. I have worked with different architectures like Microchip, ARM, AVR, Plus

30 $ USD en 2 jours
(1 Commentaire)

Hello, We provide Electronics Hardware and Software/Firmware development service. We delivered many solutions in the field of Internet of Things, Data Loggers, Home Automation and Control, Vehicle Navigation, Batt Plus

25 $ USD en 1 jour
(0 Commentaires)
30 $ USD en 25 jours
(0 Commentaires)

In your schematic button is not placed on INT0. I have working sample for your schem. Any other changes?

10 $ USD en 1 jour
(0 Commentaires)

Try this. This will power on LED when releasing the button, as you specified. Best regards. #define F_CPU 9600000UL #define FALLING 1 #define RISING 2 #include <avr/io.h> #include <util/delay.h> #inclu Plus

15 $ USD en 1 jour
(0 Commentaires)

You can use the interrupt only for turning on, and you can turn off the LED in an infinite loop I'm sorry, I do not speak English

10 $ USD en 3 jours
(0 Commentaires)

Hi, I am experienced embedded systems designer and have been using AVR's for a long time and would love to work on this project. regards,

25 $ USD en 1 jour
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