I am fairly new to drones and I wanted to ask you, what the best option is for stable hovering indoors with a erle copter.
Which hardware do I need?
I current own a 3DR PX4FLOW Kit. Is it possible to use the integrated sonar for altitude holding? I googled around and found, that I can only access it via the Analog ports. How would I wire that to the erle brain?
Secondly, if I do not get the sonar working, what would be the best second choice? I saw that many people use the lidar lite, but I do not know if it is worth spending 175€ on that. Are there any cheaper options?
Lastly, I saw many people trying to get the px4flow working, but I never saw anything actually work with the erle brain. Are there any alternatives which I could try to get it to hover?
Thank you for reading so far.