Originally Posted by KevinBuckley70
In altitude hold, does the throttle work like it does on the NAZA? I.e. 50% means stay at this height, >50% means climb & <50% means descend?
Throttle can be in any position, and when the switch is activated, the board control only that the throttle is inside the narrow range of the original input.
If you apply some throttle ... that means 10/20 tick over the level of AH engage ... or 10/20 ticks below the level of AH .. then the new throttle signal is pass in the normal computation mode (that may or may not cause raise or descend)
If the AH switch is still on ... and Throttle is kept stable ... then the board will try to keep the quad in AH, based on the new altitude, that is read few cycle after the AH was "broken" due to throttle signal.
So ... somehow you can reproduce the NAZA, but it is not the same ... for sure not as accurate as ...
All is based on the bar reading ... if this is junk ... the AH is also junk
ps: For low flight ... a sonar would be a better option, but it is still not really fully implemented as far as I know ... even if it is looking a trivial change ...