MobiFlight Community Support

Hi, is there a way to control an output led brightness through mobiflight software or is adding/removing resistance the only way?

Meanwhile you can ( since 1-2 Years i think)

Mobiflight allow the use of PWM.

Step 1. You have to create your LED Output Device on a Pin that support PWM.
( there are lists in the web for every board.... And you also see it as a Note in the Device Setting Tab. If Pin allow PWM this is shown.)

Step 2. In the Output Config you enable "PWM Mode" Checkmark.

A Non PWM Pin ( Or a Config wothout enabled PWM Mode) is simply I/O
Means a output Value of "0" represent OFF .... A Value of 1 or greater represent ON ( So 0V and 5V )

A PWM Config have 255 Range..... Value 0 = OFF ..... Value 255 = Full Bright.
E.g. Value 128 represent 50% Brightness.

So Key is to use a fixed value, or e.g. a config refference where the Brightness is defined (Own Potentiometer input e.g.)

You could say $*128 .... Means Function Off is 0*128=0 ----- Function On is 1*128=128
Same logic like if($=0,0,128)
Or you say $*A ( Where A is a refference to a Config that can be e.g. a value between 0 and 255 controlled by a Poti.)

NOTE: Without rework/use a fromula your PWM System struggle.
If you use PWM Mode with a simple Value that is 1 or 0 you will see nothing....
Cause 0 = OFF and 1= 0,4% Brightness (Means also nearly OFF).

Thank you! PWM did the trick.

In my tinkering with LED projects, I've found that software control of brightness can be more versatile than manually adjusting resistance. With the right setup, programs like Mobiflight can indeed be used to modulate LED intensity through pulse width modulation (PWM), not just turning LEDs on or off. This allows for fine-tuning brightness levels without the need for physical modifications to the circuit.

For those looking into the nitty-gritty of LED control, whether for home projects or more intricate applications, leds.to is a resource I've come across that covers a wide range of LED-related topics, including brightness control and much more.