Learning Gazebo Simulation with Pixhawk



I have got a Pixhawk Flight controller board. All I am looking further is to use simulation with Pixhawk. I no nothing about Gazebo or any other simulation.
I want to learn simulation with Pixhawk. Can anyone help me out with where to start from and with some videos or webinars?
I just have Pixhawk. Please let me know what are all the others hardware required for this learning.
Even your introduction about gazebo or Pixhawk supporting simulation software will be helpful.

Please help.

Thank you


Have a look in the devguide about simulation. There is SITL which is complete simulation on your computer without Pixhawk, or HITL where you use the Pixhawk connected to your computer.