Servo feedback speed, post your results

[lauka]

Same drill as in the tail tune results.

1. What servo?
2. What voltage?

Type in CLI after feedback calibration:
get tri_tail_servo_speed

[Joost]

1. Blue Bird BMS-210DMH
2. 5V
# get tri_tail_servo_speed
tri_tail_servo_speed = 300

The unarmed tailtune is brilliant, so easy and quick to set angles now. First set angles with Davids angle tool in unarmed mode: Min,Max,Middle then did servo tune (Roll left, right, Pitch forward, backward and disable tailtune).

[lauka]

300 is the default speed, so most likely something has gone wrong.

Do you have the feedback cable connected?When you start the speed calibration, does the servo go back and forth couple of times?

[Joost]

Before the test I had the Feedback hooked to RC6 ground (whoops:)), and then the servo keeps turning, so the connection from pinheader to servo is good. So then I connected it to RC6 signal pin, followed your instructions:

but instead of turning off TT I did pitch back (nose up), where it moves the servo to min, max, then waggles it between + & -45deg.
Maybe I messed up the save command (is there one)? Because what I gather from your vid is that it automatically saves between steps, yes?

edit: Looking over your vid I did indeed forget the save stick command at the end.

1. Blue Bird BMS-210DMH
2. 5V

# version
# TriFlight 0.5 Beta 1/NAZE 2.1.2 Jan 25 2016 / 20:14:56 (c68285a)
# get tri_tail_servo_speed
tri_tail_servo_speed = 265

Davids electronics pack + X4R-SB, FLVSS, Immersion VTx 600mw, Sony Effio 800TVL WDR 2.8mm lens

[Jarno]

Hi, I did tailtune and got a thrustfactor but speed is still tri_tail_servo_speed = 300? Checked that wire is RC6 and voltages are:
Servo at middle – 1.73V
One side – 1.08V
Other side – 2.34V

Is that ok? Or is the result 300 🙂

[juansacco]

Get Savox digital servos!

[lauka]

@Jarno: you get the speed in the unarmed state tail tune. Pull back on the pitch stick after min, mid and max have been set.

[Joost]

@Jarno ..and don’t forget to save with the stick command after.

@juansacco Those aren’t cheap o.O.

@lauka You figure Terje’s impossible tilt mechanism allows for faster tail response?

[Jarno]

@Joost I did save, but I thougt that it will happen at ARMED mode 🙂

@lauka I think I’m doing something wrong. Did it, but still shows 300 🙁
here is a video

Thanks

[lauka]

The calibration is failing, it’s not registering any changes in the signal. Are you sure that the feedback is connected to the signal pin of RC6 and not the ground pin by accident?

[Jarno]

Nope, connected to RC6. I found that if I disable LED_STRIP then tail servo hits to the right and gets stuck, if I disconnect feedback then servo works ok.

[lauka]

Do you have softserial configured (to the same pin) ?

[Jarno]

Nope, made a clean install and still the same. Here is cli dump http://pastebin.com/gjRpKRyB
If I connect feedback to pin 6 servo hits to right side and in I disconnect it then servo works as normal. If I enable leds then pin 6 can be connected but… no servo speed. Strange 🙂

[Jarno]

OK, worked with RC8 (current pin) 🙂

1. Turnigy TGY-211DMH
2. 5V

# version
# TriFlight 0.5 Beta 2
# get tri_tail_servo_speed
tri_tail_servo_speed = 221

[PlanB]

– Blue Bird BMS-210DMH
– 5V from integrated BEC
– tri_tail_servo_speed = 266
– TriFlight 0.5 Beta 2

[Author]

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