How operate servo using PCA9685

Hi guys! I hope all are good.
how to control a servo with PCA9685, using PX4 autopilot. I am searching for a user manual, but up to now, I did not get any answers. Please give any suggestions on this. I have 8 pins PWM pins are there, in these 6 pins are used for hexacopter. 2 free servo pins are free, but they’re not getting any signals. My drone is IF1000. reference

Thank you in advance

Hi! This was discussed today during Community QnA call. And it was noted that the PCA 9685 driver was broken for quite some time, so probably for your case as well it was not working.

Could you try out the corresponding PR (and build target binary & upload) linked above to see if your problem has been fixed?