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Message #2451

MASTERP

Posts: 55

Hi Sebastian,
Could you please help with 2 questions below:

1. I am wondering which pin could be used to assign button on Arduino Mega 2560?
I heard that using PWM pin from 2-12 for a button may damaged the chip, is that correct?

2. Is there anyway to use 1 pin for 10 buttons offset ? I am making an Airbus MCDU with 72 buttons and I really want to use single Mega 2560 for all the button?
I found on the internet that there are a way to assign multiple button on 01 pin with resistors, is this possible with MobiFlight ?

Many Thanks,
Vu

[Last edited by MASTERP, 2016-07-19 08:15]

2016-07-19 04:47

Message #2508

DocMoebiuz

Moderator

From: EDSH, Germany

Posts: 1516

If you want to use resistors to be able to use more than one button per pin, then I think you had to use an analogue input.
This is currently not supported.

I advice you to rethink about having a second arduino. It will be less effort and hassle to get everything working.

Have a great day!
Sebastian

MobiFlight - Simply build your own home cockpit for your favorite flight sim - MSFS2020, FSX, Prepar3D (FSUIPC), X-Plane (XPUIPC)

2016-08-22 05:32

Message #2603

MASTERP

Posts: 55

Thanks Sebastian,
Finally I got my MCDU working fine with Mobiflight and 2 Arduino Mega 2560.
Sometimes the button bounce with Arduino, but in general it works fine

Here is its video in action.
https://youtu.be/AyzxYKkS_Jo

DocMoebiuz:
If you want to use resistors to be able to use more than one button per pin, then I think you had to use an analogue input.
This is currently not supported.

I advice you to rethink about having a second arduino. It will be less effort and hassle to get everything working.

2016-09-19 08:02