Hello Fellow Yuneec Pilot!
Join our free Yuneec community and remove this annoying banner!
Sign up

Tornado gimbal electric pinout

Joined
Jul 12, 2019
Messages
11
Reaction score
0
Age
25
Hello. I was wondering if anyone does know the electric pinout for the gimbal of the H920 (CGO4). I want to use the potentiometer that controls the horizontal or the vertical rotation to control a servo or two relays attached to the drone.
 

Steve Carr

Missed Approach
Staff member
Premium Pilot
Joined
Dec 15, 2015
Messages
8,176
Reaction score
4,650
Location
Bessemer, MI
I believe that is a PWM signal. I'm not sure there is any good method of utilizing it but perhaps someone has made an attempt.
 
  • Like
Reactions: angelofratila
Joined
Jul 12, 2019
Messages
11
Reaction score
0
Age
25
I have an oscilloscope, so I could see what kind of frequency it uses. But I needed the grounding wire, so I can read the signal.
 
Joined
Oct 6, 2019
Messages
5
Reaction score
2
Age
55
Location
Sydney
There are 8 servo type pinouts on the H920 FCU, it only uses 6 of them for the rotors. You could use the other two from the transmitter to operate two servos directly.

You can go into the TX menu to program them to mix in with the pan/tilt controls.

Regards,
 

Attachments

  • IMG_20190602_125207.jpg
    IMG_20190602_125207.jpg
    3 MB · Views: 27
  • s-l1600 (3).jpg
    s-l1600 (3).jpg
    40.7 KB · Views: 27
  • Like
Reactions: angelofratila
Joined
Jul 12, 2019
Messages
11
Reaction score
0
Age
25
Now this is exactly what I was looking for! Thank you very much for the info!
There are 8 servo type pinouts on the H920 FCU, it only uses 6 of them for the rotors. You could use the other two from the transmitter to operate two servos directly.

You can go into the TX menu to program them to mix in with the pan/tilt controls.

Regards,
 
Joined
Jul 12, 2019
Messages
11
Reaction score
0
Age
25
Update:
I set up the channel to use the M8 servo channel with the 3 position tilt switch( -100% 0 100%).
Took the drone apart, connected a servo straight to the M8(A8), nothing happened.
I connected an oscilloscope to see that I have one grounding wire, one constant 5V wire and one pwm (attached).
My problem so far, is that no matter how I flick the switch, the pwm doesn't seem to change. I tried also the M7(A7) and M4(A4) that uses the tilt potentiometer but the signal is exactly the same.
I also tried it with the rotors connected, because I was getting a red blinking but it made no difference. 20191108_184745.jpeg drona.jpeg 20191108_175925.jpeg 20191108_185108.jpeg 20191108_185037.jpeg
 
Joined
Mar 4, 2020
Messages
7
Reaction score
1
Age
39
Where did you connect the servo on the H920's FCU? And what kind of servo did you use?
I want to do the same thing, but II want to use the gimbal connector. I measured the pin-s voltages, and í can modify two of them by the controller (ST24). The pitch and the roll pins' voltage can be adjusted by the left potentiometers, depending on the S1 and S2 switches. The voltage can be continouesly modified between 1,2 and 2,5 V.




Update:
I set up the channel to use the M8 servo channel with the 3 position tilt switch( -100% 0 100%).
Took the drone apart, connected a servo straight to the M8(A8), nothing happened.
I connected an oscilloscope to see that I have one grounding wire, one constant 5V wire and one pwm (attached).
My problem so far, is that no matter how I flick the switch, the pwm doesn't seem to change. I tried also the M7(A7) and M4(A4) that uses the tilt potentiometer but the signal is exactly the same.
I also tried it with the rotors connected, because I was getting a red blinking but it made no difference.
 
  • Like
Reactions: Steve Carr
Joined
Sep 28, 2020
Messages
636
Reaction score
201
Age
53
Location
Kozloduy, Bulgaria
May I ask for a schematic diagram of the 920 connector with signals? Is connector the same in 920+?
 

New Threads

Members online

Forum statistics

Threads
20,058
Messages
231,990
Members
24,421
Latest member
chrisgreenslade