Add support for "analog buttons" ( via analogRead(a0); )

[SuperXL2023]

Hello!
My project uses "analog buttons", meaning they are connected to a single analog pin, and by voltage (by ADC value) I keep track of which button is pressed.
When all the buttons are released, the ADC value is zero.
Unfortunately, I won't be able to connect the buttons any other way, all ports are busy.

It would be great to realize such an opportunity.

Regards, Andrey.

[loic-daigle]

Hello Andrey!

Thank you for your suggestion.

I see that your project uses several buttons connected to a single analog pin, with the button detection done by reading the ADC value. That’s an interesting approach!

A possible addition to the library would be a function like triggerButton(), which would allow you to trigger a button press in software for a specific button. The logic to read the analog value and detect which button is pressed would remain in your own code (for example, using an interrupt), and you could call this function to let the library know which button was pressed.

At the moment, I’m quite busy and won’t be able to implement this myself. However, if you’d like to work on this and open a pull request, I’d be happy to review it. If you need any guidance on where to add this function, feel free to ask!

Regards,

Loic