SF_RC_LOSS_TIME - time without rc to activate failsafe.
SD_DESCEND_TIME - total time to decrease the throttle to zero.
Make controlTime nan on the start to simplify the logic.
As it makes the subsystems code easier to understand.
Declare the most used variables in main sketch file as forward declarations.
Make all control input zero by default (except controlMode).
Minor changes.
Arm and disarm with gestures only: left stick right/down for arming, left/down for disarming.
Remove arming switch as it complicates arming gestures logic.
Remove MAV_CTRL_SCALE parameter as it complicates arming gestures logic, advise to decrease TILT_MAX when controlling with a smartphone.
Put some minimal thrust to motors to indicate armed state.
Rename build article to usage article, add flight instructions.
Add interpretControls function to convert pilot commands and mode into control targets and make control functions independent from the mode.
Add ratesExtra target for rates feed-forward; remove yawMode.
Rename controlRate to controlRates to reflect rates variable name.
Remove USER mode.
Implement channels mapping calibration.
Store mapping in parameters.
Get rid of `controls` array and store control inputs in `controlRoll`, `controlPitch`, ... variables.
Move `channels` variable to rc.ino, channels are not involved when controled using mavlink.
'Neutral' values are renamed to 'zero' - more precise naming.
`controlsTime` is renamed to `controlTime`.
Use unsigned values for channels.
Make channel values in simulation more alike to real world: unsigned values in range [1000, 2000].
Send RC_CHANNELS_RAW instead of RC_CHANNELS_SCALED via mavlink
Don't send channels data via mavlink if rc is not used
Implement pause function that proceeds processing mavlink.
Use temporal workaround for simulation, as micros function gives the same result on the same simulation step.
* Unified parameters storage.
* Store parameters in flash on the hardware.
* Store parameters in text file in simulation.
* Work with parameters in command line.
* Support parameters in MAVLink for working with parameters in QGC.
Oleg Kalachev