I have been trying for days to get this code to work, but I cannot find a solution. My sketch: #include <ControlInterrupt.h> const int commonPin = 2; const int buttonPins[] = {4,5,6,7,8}; ControlInterrupt controlInterrupt(commonPin, buttonPins); void setup() { // put your setup code here, to …

I received my answer on another board. [Nick Gammon] I cannot resolve the errors with attachInterrupt() (error: invalid use of non-static member function) arduino-uno, arduino-ide, interrupt, compilation-errors answered by Nick Gammon on 07:34AM - 19 Ja…

As he explains it so well, I'll let Nick Gammon handle this one: [image] Use attachInterrupt with a class method / function? Programming As PaulS pointed out, of course you can't. A method has an implied "this" which is the instance of the class. Trying to make it into a…

I'm relatively new to Arduino. I don't require a class for this, I used it to avoid other errors I was seeing. Can you provide any help integrating the suggested modifications?

Ah, an X-Y problem . Perhaps you should back up and explain it is you are actually trying to accomplish rather than your attempted solution.

[image] thecodegeek: Can you provide any help integrating the suggested modifications? Yes. Don´t use interrupts to design a button manager.

this won't give you the number of pins but just the size of a pointer (2 or 4 depending on the platform). [image] thecodegeek: _arrLength = sizeof(buttonPins); You need to pass the size of the array as a parameter as well (read about Array-to-pointer decay in C or C++) and assuming you g…

[image] thecodegeek: I received my answer on another board. Except for ESP32 (and ESP8266) where you can indeed specify an instance function as an ISR: #include "FunctionalInterrupt.h" class ClassWithIsr { public: ClassWithIsr(uint8_t p) : pin(p) {} void begin() { pinMode(p…

Especially when a link to essentially the same answer, from the same Nick Gammon, was given back in post #2 .

[image] thecodegeek: I have been trying for days to get this code to work, but I cannot find a solution. Well, what you're trying to do is a little bit odd but it's possible. Change This: attachInterrupt(digitalPinToInterrupt(commonPin), controlInterrupt.pressInterrupt, FALLING); To This…

I cannot get attachInterrupt() to work (invalid use of non-static member function)

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van_der_decken January 19, 2024, 7:11am 2

As he explains it so well, I'll let Nick Gammon handle this one:

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I cannot get attachInterrupt() to work (invalid use of non-static member function)

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