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Old Jun 27, 2011, 09:02 AM
kapteinkuk is offline
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Quad Whisperer
Joined Jul 2008
953 Posts
Here is the new QuadControl V4.7 (plus and X mode) firmware.

The poor atmega48's memory is now full

Higher ESC refresh: 300Hz

Added I-term on yaw axis

Added I-term anti wind-up, all axis

Changed potmeter usage:
Roll pot now controls P-term gain on roll/pitch axis.
Pitch pot now controls I-term gain on roll/pitch axis.
Yaw pot controls P-term on yaw axis as before. Yaw axis I-term is fixed at 0.2

X-mode setup:
Motor 1: front left, CW
Motor 2: back left, CCW
Motor 3: Front right, CCW
Motor 4: Back right, CW

Suggested initial setup:

P pot at 50%

I pot at 0% (it can be left at 0% since it does not have a secondary function.

Yaw P pot at 50%

Trim it level.

Adjust P (roll/pitch) to your liking.

Add I until it flies straight forward without pitching up.
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