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Pixhawk PMW Signal


(Maximilian Büchel) #1

Hi,

is it possible to use the Pixhawk PMW Signal to dimm an external LED

I got an LED-driver with an PMW input but if i try it the led is only flickering.


(Jacob) #2

Yes, the Pixhawk can control an LED with a PWM input (like our very own), but there are some parameters that need to be known:

What PWM frequency does the LED driver require?

  • The Pixhawk PWM output is 200Hz on the Main output pins and 50Hz on the Auxillary output pins

What duty cycle does the LED driver require?

  • The Pixhawk PWM output is ‘RC-style’ with pulse widths ranging between 1000-2000 microseconds.

-Jacob


(Maximilian Büchel) #3

Hi Jacob,

This is the led-driver what im going to use https://pcb-components.de/led-abwaertswandler-buck-step-down/black-power-v3-2800ma-3000ma-5-5v-50v-detail.html