API Command to switch off Raspberry PI

[fweinrebe]

Isn't there a API command I can call in a custom gauge or by a press of a button that can shut down the Raspberry Pi(s)?

Why I am asking is because I run Air Manager 3.0 on my laptop and on my cockpit I run multiple Air Player Desktops and RPi. But my laptop is not always at my sim. When shutting down the sim I switch off all the PC's, then I have to walk over to my laptop, open Air Manager and then shut down the Raspberry remotely.

I would like to link a switch to a RPI or Arduino and pressing that button/switch must command all the Raspberry Pis to switch off. Or is there a GPIO pin on the RPi that will trigger a shutdown?

Fritz

[fweinrebe]

After some research I found a Python script that monitors a GPIO pin using Python. On detection that a button was pressed on that pin, it then calls the shutdown of the PI.

What I plan to do is connect a relay to an Arduino pin. I can then in my gauge trigger the relay. That will toggle the value on the GPIO pin of the Pi calling for the shutdown. My PC's are also set to shutdown when I press the power button, so the same Arduino is gonna pulse the power buttons thereby switching off the whole simulator.

Hopefully Air Player will not interfere with the Python script also monitoring a GPIO pin?

[Corjan]

Hi,


To be honest, I'm not sure if it would interfere. I think both systems only read the same registry, so that might work fine.

Having said that, I will implement this feature in Air Manager / Air Player. It might take a while though before it is part of a new release, I have put it on the TODO list.

Might become something like this:

Code: Select all

shut_down("SYSTEM")
shut_down("APPLICATION")
shut_down("INSTRUMENT")
shut_down("PANEL")

Expect something along the lines of two months.

Corjan

[fweinrebe]

Having said that, I will implement this feature in Air Manager / Air Player. It might take a while though before it is part of a new release, I have put it on the TODO list.

Might become something like this:

Code: Select all

shut_down("SYSTEM")
shut_down("APPLICATION")
shut_down("INSTRUMENT")
shut_down("PANEL")

Expect something along the lines of two months.

Thanks very much Corjan.

[Corjan]

Hi,


No problem,

I have implemented the shut_down function in our codebase. Only the "APPLICATION" and "SYSTEM" types.
Next week, I will probably create a new Air Player BETA for Raspberry Pi, it will be included in that version.


Corjan

[bmcmullan]

I know it's bad form, but I just shut off the mains and dump the PIs - so far, never knackered one after probably 200 such dumps over last three months. I was expecting to have to reflash occasionally, but so far so good.

[brodhaq]

Hi,
is this in the latest beta yet? Just asking if I should download that beta or not, this would be the only reason for me as I am pretty happy with the stable.

Best regards,
Pavel

[Corjan]

Hi,


Unfortunately, I don't know anymore I think it is...

I will make a new BETA tomorrow anyways, so it is definitely in there.


Corjan

[brodhaq]

Working perfectly with the latest beta, thank you so much!

Pavel

[Corjan]

No problem.

And sorry for the delay,

Corjan