This tutorial will show how to add a little ESC and motor protection to your OpenTX transmitter. This will be particularly useful if you spend a lot of time at full throttle and are pushing your motor to it’s limit. I came up with this idea after burning out the 2nd motor on my S800. This function will play a siren after 9 seconds, as ESCs usually have a 10 second burst capability. However, if you’re within the limits of your ESC, the next thing that can suffer damage is the motor. The specs on your motor will give a maximum full throttle time, which you’ll be able to set in this function.
RC Programming
OpenTX Logical Switches
#
Function
V1
V2
AND Switch
Duration
Delay
Detect the throttle is over 95%
L01
a>x
Thr
90
0.0
0.0
Detect throttle over 50%
L02
a>x
Thr
0
0.0
0.0
Throttle has been over 95% for over 9 seconds
L03
Edge
L01
9.0 | (Instant)
0.5
0.0
Throttle has been over 95% for over 90 seconds
L04
Edge
L01
90.0 | (Instant)
0.5
0.0
Active once throttle is above 95% for over 90 seconds. Deactivated by reducing throttle below 50%
L05
Sticky
L05
!L02
0.0
0.0
We have been abusing the motor, but the throttle is now lower
L06
a=x
GV1
1
!L05
0.0
0.0
We have been flying sedately for 30 seconds to cool the motor
L07
Edge
L06
30 | (Instant)
0.0
0.0
OpenTX Special Functions
#
Switch
Action
Parameters
Enable
Play the siren once the throttle has been over 95% throttle for over 9 seconds
SF01
L03
Play Sound
Siren
x1
Play the warning once the motor has been at 95% throttle for more than 90 seconds. The warning plays every 2 seconds until the throttle lowers below 50%
SF02
L05
Play Sound
Warn1
2s
Set GV1 to show that the motor has been abused
SF03
L05
Adjust | GV1
Value | 1
☑
Play sound to show the motor should now be cooler
SF04
L07
Play Sound
Beep1
x1
Reset GV1 to 0, so that it is ready for the next extended period of abuse
When you get a new transmitter, there comes a time that you have to move all of your old models to it. However, with my iNav model, I wanted to make a few changes to Read more…
This tutorial shows you how to get more out of your momentary switch. Its pretty simple to set up the momentary switch to do something, like reset a timer or read out your current altitude. Read more…
Please note, this set up is based on the regular aircraft model in the S6R or S8R, not a flying wing or V-Tail. The channel positions are different for both types of model. Always test Read more…
This website uses cookies to improve your experience. We'll assume you accept this policy as long as you are using this websiteAcceptView Policy