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QLC+, RASPBERRY PI, GPIO

Posted: Sat Nov 20, 2021 8:49 pm
by ramonrey
Hi.
I need to use QLC+ with Raspberry Pi 2 Model B. I have it already installed.
Now, I need to use a GPIO (anyone) to do a "GO", or "NEXT CUE".
I don't know how to configure it.
Can anyone help me, please?
Thanks a lot

Re: QLC+, RASPBERRY PI, GPIO

Posted: Mon Nov 22, 2021 9:38 am
by GGGss
In essence, a GPIO can be an input signal.
You have to configure its presence (in- output tab) and use this input inside a function. (function on VC + properties + input).
Be warned though that you need a rising flank of the GPIO signal, for QLC+ to detect its change in state. (off -> on = rise in flank = input; on -> off does nothing)

Re: QLC+, RASPBERRY PI, GPIO

Posted: Mon Nov 22, 2021 11:26 am
by mcallegari
Nitpick: it's "rising/falling edge", not "rise in flank" :)

QLC+ should configure the direction for you, but you need to use GPIOs "free" to use, not those with multiple meanings. See the connector diagram in the provided PDF.
IIRC in my experiments I used GPIO 18, so you need to use DMX channel 19