I am new to the world of drones and UAVs. While there are a ton of resources available online for quad-copters and multi-copters in general, I am really struggling with finding resources on helicopters.
Specifically I wanted to know if there are existing autopilot systems for RC helicopters. Now I am not interested in large helicopters. What I want to work on is modifying helicopters like Blade Nano S3 or Blade 70S i.e helicopters that are no larger than my palm.
I found some Discontinued autopilots on 1bitsquared i.e Lisa/S developed by TU Delft and Elle0. I don't need anything necessarily fancy, just the very basic autopilot stuff but I need it to be configurable so that I can use my own GPS system or program the MCU with some additional routines using Arduino or easy to program ecosystems. It should be configurable in some way so to speak.
Since whatever I found seems to be discontinued I do not expect to find good support for it and hence I do not want to waste time reinventing the wheel.
Are there basic autopilots out there that I can use to replace the existing flight controller on the Blade Helicopters and add a few more functionality to them like FPV and custom GPS telemetry?