MobiFlight Community Support

Hello again guys.
I am trying my best to learn to programme flight sim hardware. With Mobiflight. I m pleased with myself that i managed the 7 segment displays and the encoders to set them.
I am having trouble with my KD2 switches with built in LED's. These are the various course, speed and heading selector set switches.
I have set the switch part with the PMDG 737-700 pre-sets but i cant seem to find anything for the LED option.
The KD2 switches have 1 x ground and and a signal pin for the Arduino and a +5v pin for the LED with a ground for that also.
The 5v Led pin i also was told to send to the Arduino on any pin from 1-51. I just cant work out how to make the LED come on with the KD2 switch when it is pressed.

Please help.
Thank you.(No programming jargon remember im a learner) Thanks.

Hi
Welcome !

Basically you must see the LED and the Switch like 2 different independent things. Whatever they are build into one element.... In theory the LED could be 2 meters away from the switch.
Also the function is not effected by each other.... So the LED not care about if Button is pressed or not.
In theory you could show with the LED e.g. the status of Parking brake but same time you controll with the button the COM1 Frequency Swap.
So See it as two different things !

About wire:
The button need one side to a Arduino Pin .... the Other side to Ground of that arduino.
The LED same need the 5V side to a arduino Pin.... The other side to GND.

You can use all Pins expect Pin 0 and 1 .... So 2-53 and A0-A15

In MF you define the devices.... As you said you still work with it.... So set the used Pin from Switch as "Button" and the used Pin from LED as "LED Output".


Abut Setup: Also here you need TWO Cofigs.
The Button is a INPUT.... So you choose for Input.... Make new Config.... Choose for the Button you create and set a Function like a FS2020 Event.

For the LED you need now a OUTPUT Config....
Same idea... You create a new line.... Choose for the LED .... And now you must set a Variable/Value we like to show.
Also in Outputs you have the same Logic... For FS2020 e.g. there are thousends of Presets. Choose for PMDG737 and you will find Variables for the needed LED Outputs.

Thank you for your kind reply.
The instructions you have replied to me i have done. There is no option in the PMGD for any Led or an option to add it to the switch. I dont understand it. when i test the led it comes on in the button but i cant seem to find a pre set that lets me choose an LED on the MCP.
Thank you.

check this....

https://www.youtube.com/watch?v=jaL20le721k

Adittional i high recommend to join our Discord https://discord.gg/99vHbK7
There we can talk for free and show things by share screens.

Thank you thats very kind of you. Im not familiar with Discord. Can you please guide me to what i do and how i contact you.

Thank you.
Lewis.

My invite is telling me that it has expired.
Thanks
Lewis.

In theory you can use Discord via Browser .... But way better ( For voice Calls and Shared screen) is the App.

You can Download Discord by simply google for it ( lots of sources) .... For Smartphone its in the AppStore / Google Play.

After install it, run it and click on the Link i share. Then your on our Server.