25 January, 2016 at 17:39 #25129
I have a question “The servo feedback wire” is it a definitive thing now? And does it only apply to the Tricopter, or the Mini Tricopter also? Cause I saw this was tested earlier and i’m seeing it now on the Tricopter 3.5 build tutorial. Should this be added to the Mini Tricopter build also? If so please update the Mini Tricopter build tutorial.
Thanks.25 January, 2016 at 18:11 #25130
The feedback support is implemented and somewhat tested also.
Problem is that I haven’t had time to look into Triflight last week. I’ll try to release a beta out as soon as I can.
Next things in roadmap are:
– new tailtune implementation
– servo setup without configurator
– servo feedback support
– CleanFlight merge.
I think I’ll start with the first three as the code is already implemented.25 January, 2016 at 22:40 #25139
Hi, is it possible to solder feedback wire to that servo to – turnigy tgy 210dmh Hobbyking
Jarno26 January, 2016 at 18:49 #25168
Ok, took the servo apart and it seams to be very similar to what David is using. How can I test if the feedback is working?
Attachments:26 January, 2016 at 19:09 #25171
Measure the voltage on the pot middle pin when you’re rotating the servo. It should give values roughly between 1V – 3V.26 January, 2016 at 19:49 #25172
What is the added value of this feedback wire? More stability, better loss of control corretion, or sharper turns?
Thanks.26 January, 2016 at 20:10 #25174
Ok, with turnigy tgy 210dmh I got 0.82V one end and 2.61V the other end. I soldered the wire and got it back together 🙂
Attachments:26 January, 2016 at 20:25 #25177
@Jarno: That should work. Did you do it without removing the servo from the copter? Nice:)
@Marlon: The tricopter mixer controls the tail motor speed based on the servo position. With more precise position information we should get more responsive yaw.
Of course it works without the feedback signal, using the virtual feedback as before. Just not as accurate.26 January, 2016 at 20:42 #25179
Yes, I didn’t remove the servo from arm, only cut the zipties. I’m rebuilding my V3 now, so at spring I can conquer the sky’s ?2 February, 2016 at 12:19 #25562BojanParticipant
Hello! I know that on naze frame, this servo feedback is on pin 6. Does anyone know if Flip32 board also support this feedback, and if, on wich pin should I hook the cable? Perhaps Terje, you should know?
thanks, Bojan2 February, 2016 at 12:50 #25565TerjeModerator
Well the picture you link to is PWM setup. If running PPM, my best guess would be simply signal pin 6 on the Flip32+?5 February, 2016 at 17:58 #25707
My build is going very slow, coming from 1/14 scale RC truck hobby. My copter toolbox is yet in it’s virgin state, but i’m no rush. I Managed to do the servo feedback wire mod yesterday OEM style hahaha. Below are some pictures. Sorry for the quality, the Mini Tricopter hobby has my wallet hostage for the moment.
Attachments:6 February, 2016 at 09:16 #25721LeoTheHumanParticipant
Wow, I didn’t know there are RCExplorer branded servo.4 April, 2016 at 18:34 #27546LuisParticipant
what about if I have a “normal” naze32 Rev6? where should I connect the servo feedback cable?4 April, 2016 at 21:10 #27554TerjeModerator
Have not tried it myself…
According to the Triflight github page, you could use RSSI:
RSSI = Use RSSI ADC pin. RSSI feature can’t be used at the same time.
That would go something like this:
In CLI type:
set tri_servo_feedback = RSSI [ENTER]
Now connect the servo feedback wire to the pad marked “2” on your board (CH2 reference on the picture). You will need to run PPM/S.BUS on your board to make this work (no PWM)
Someone PLEASE verify that this is the way to do it?
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