notes
How to send ftrim in node ar-drone – to level out after a crash
No, you send at*ctrl with params 5,0, which resets the flag controlCommandAck in the navdata to 0.
Then when you send the next at*config, this flag switches back to 1. You then send another at*ctrl 5,0 to reset.
Described here: https://projects.ardrone.org/boards/1/topics/show/2364