Chez Marc Grossman
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RV-6 Autopilot 2

7/29/2010

 
Now I’ve incorporated a second servo into the code and I’m able to control two servos independently with the ATmega32. This is all on a dev-board however and not very useful yet.

For those of you that have hobbied in electronics you know that getting something to work on a dev board is only half the battle. There is a lot that can go wrong between the dev board and a hobby box.

Here again are the steps necessary to get to where I have an autopilot in the RV.
  • Control servo with microcontroller
  • Control multiple servos with microcontroller
  • Incorporate buttons and control servos with microcontroller and package it all
  • Incorporate servo into elevator to control the trim tab
  • Put entire mechanism into RV-6
  • Verify that the trim tab has sufficient control authority (test flights)
  • Add servo control to ailerons
  • Verify that aileron servo has sufficient control authority (test flights)
  • Add sensor package to airplane that interface through microcontroller
  • Interface microcontroller with Matlab/Simulink
  • Develop control algorithms
  • Verify stability of control algorithms
  • Gain tuning
  • Port control algorithm from Matlab/Simulink to C

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