@copilot wrote:
Hi
I am busy building a new X8 using KDE motors and their UAS55HVC ESCs. These ESCs does not normally require calibration but when using them with the Pixhawk it is recommended to buy the programming board and then set them to manual calibration. After this one can perform the normal "all-at-once" calibration.
I only realized this when I wanted to perform the ESC calibration during the setup phase. I immediately ordered the programming board but also read that some guys were flying these ESC without doing this step. So to save time while waiting for the board I continued and after finishing tried a quick take-off.In my previous builds I normally made the first flight in AltHold mode but this time around there was no joy. Increasing the throttle almost to mid-stick still didn't even start the motors, scared of having a sudden take-off I rather tried stabilize. Switching to Stabilize works fine, motors start spinning soon after increasing the throttle and then she lifts off.
So my obvious guess is that it has something to do with the ESC calibration that I need to perform. But I don't want to wait until I receive the programming board just to realize that I didn't need it after all.
From what I can see in the logs, RCIN.C3 clearly shows that the throttle is increased while in AltHold but CTUN.ThO shows that no throttle is given to the ESCs. I guess when in AltHold the throttle sets the desired altitude but for some reason the desired altitude is not set. Could this just be related to the ESC calibration and once done should be fine? Any advice for things I can check?
Thanks!
Posts: 3
Participants: 2