# Pixhawk 4 and PM07 connection

**URL:** <https://discuss.px4.io/t/pixhawk-4-and-pm07-connection/39769>\
**Category:** PX4 Autopilot\
**Created:** [July 18, 2024, 8:57am UTC](https://discuss.px4.io/t/pixhawk-4-and-pm07-connection/39769 "2024-07-18T08:57:16Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Abdul\_Malik](https://discuss.px4.io/user_avatar/discuss.px4.io/abdul_malik/32/16803_2.png) [@Abdul\_Malik](https://discuss.px4.io/u/Abdul_Malik)\
**Post date:** [July 18, 2024, 8:57am UTC](https://discuss.px4.io/t/pixhawk-4-and-pm07-connection/39769/1 "2024-07-18T08:57:16Z")

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I am using the Pixhawk 4 and PM07 power module for my Rover. I have connection as  
Pixhawk PM07  
FMU PWM OUT --------\> FMU PWM IN  
I/O PWM OUT ----------\> I/O PWM IN

I have connected Servo signal Pins to FMU PWM OUT 1 and ESC signal to FMU PWM OUT 2 on PM07.

But when I try to use my Radio which is connected via receiver TGY-IA6B on pixhawk PPM RC port it do not work. . . .After reviewing online resources i changed the connection I/O PWM OUT from pixhawk to FMU PWM IN on PM07.  
Now, Only Servo is working with my radio. I have tried all the FMU PWM OUT pins on PM07. But only the Pin 1 works whether i connect servo or ESC to it.

Thanks