Accelerometer feedback causing servo (yaw) twitchiness?

[Kevin_Erik]

Motor spool up without accelerometer active:https://www.twitch.tv/videos/174004208

Motor spool up with accelerometer disabled:https://www.twitch.tv/videos/174004973

Notice the difference between the two? It seems that the accelerometer maybe sensing the vibrations from the motors, causing the tail-servo to react. This reaction appears to be causing the entire system to feedback on itself. Is it possible to dampen this ?

Thoughts and comments are welcome.

Cheers!

Kevin & Erik

[Kevin_Erik]

We will try a 1000uf 63v low-esr cap across the battery leads to see if this resolves the situation. Should have the parts in a few days if all goes well.

[Kevin_Erik]

What kills me about the tail servo, is how it immediately turns 30-45 degrees to the right the very moment the tricopter is armed. Being that the copter doesn’t have landing gear, this often leads to the tail-rotor smacking the ground or the copter flipping upon launch. Keep in mind that this is with a completed tail-tune and accelerometer calibration.

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