OpenTx Tutorial Trim Options: Radiomaster TX16s • [Intermediate] 

I know, I was thinking of starting a 5k countdown livestream :) Thanks for checking-in, glad you liked the video.

Thanks for watching! You're welcome.

Awesome. OpenTx is an awesome bit of software with just a little effort.

Wow, thanks! Glad the videos have helped you.

Glad to hear they're helping you out Justin. Thanks for the comment.

Glad you enjoyed it. Thanks for the comment.

I almost marked this one beginner but when I started getting into the impacts of trim on servo travel I felt I would hear about calling that "beginner" material. Thanks for watching. J

Thanks, will do!

Glad to help.

Thank you Dean, very kind...Appreciate the comment and thanks for watching.

You're welcome!

Sure: amzn.to/3Ik45th Thanks for the comment.

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Are you starting the calibration with those items CENTERED? I kind of doubt you damaged two sliders and one pot in one go, and it's also interesting this is happening only on "sweep" controls. Make sure you start the calibration with everything centered first.

@@RCVideoReviews yes sticks, sliders and pots are centered when calibrating which is weird and why I ask.

@@RCVideoReviews I went back and did the calibration again, took 2 more tries but it appears everything is back to normal. Thanks for the input, not sure what happened but obviously I did not do the calibration correct the first time.

Thanks for watching and leaving a thumbs up! Appreciate it.

Yup. Trims save with the model.

Look in your inputs screen for the aileron. Trim should be set to ON. I don't know of any way to get the trim to be reversed though. It always follows the stick even if the output is reversed. You may need to create a new model. I'd be interested in hearing what you learn about this.

@@RCVideoReviews Thanks, yes I had the servo reversed in the wrong place.

If you look in the flight modes tab under trims you'll see options for trims to all be the same, or to use trim values from flight mode 0 + the current flight mode, or just the current flight mode.

Subtrim changes outputs and o don’t believe they are influenced by flight modes. You could set trim per flight mode though.

@@RCVideoReviews woofie5555: Let me start by saying I have not tested this fully so this is just a start. I think the answer is yes by using a global variable. On the outputs page you have the option to use a global variable as the input for subtrim. Use special function to adjust global variable to the value you want for the subtrim and the switch you use to select you flight mode as the trigger.

I'm stuck :)

All models or just one?

@@RCVideoReviews I think I changed something along the way so early models were ok. But since I copy old models for new ones, the “error” is pretty much in all my models now.

@@RCVideoReviews also, I noticed that “instant trim” doesn’t work on the ailerons either so maybe that is related?

@@thenerdoligist1292 On your inputs for any control surface (look at Aileron in this case) near the bottom of the first screen it says Weight, Offset, Trim, Curve, Modes. What is in your "Trim" field? It should be "ON"

@@RCVideoReviews yes, TRIM is set to ON. But I found the issue. I have a -100 weight on one of my ailerons. Instant trim now works too. Thank you very much for your time and knowledge!

Hmmm...try inverting your weight than reversing the elevator output on the elevator tab.

The first four--self explanatory. The 2nd set T5/T6 are used for planes like Gliders that might have two sets of servos per wing that they use for things like crow braking, or using flaps as a 2nd set of ailerons.

@@RCVideoReviews 🤩 gotcha! awesome to know! thanks for your response!

Do you have trim idle only checked in your model setup page?

@@RCVideoReviews hi and thanks. Don't think so. Should it be checked ?

Trim for throttle should work the same as any other trim without that option checked. Ok here are the places I know you can change the behavior of or turn off trim: 1) Trim Idle Only - Model Setup Page 2) Flight Mode Column 3 - Flight Modes Page (they should all say =0 unless you know you want something different there). 3) Inputs Trim On/Off - Inputs Page 4) Mixer Trim Checkbox - Mixer Page Does your trim button show changes in the trim indicator on the main model screen? If it does and you've otherwise verified that your hardware works (other models, or hardware calibration screen), and you haven't turned it off in one of those 4 places, then I don't know what else could be the problem. I would start with a new model. There are ways to load model configs in companion to do a compare if you want to dig in that far.

@@RCVideoReviews Amazing i made 1) Trim Idle Only - Model Setup Page and ticked the check box and it works. wow thanks a lot

👍

You know, this is the third question you've asked me. I've answered the other two, you haven't bothered to give a thumbs up or even a reply saying "thank you". I'm thick skinned, but has it occurred to you to make an effort at being at least cordial? Try google.

@@jimsnodgrass8454 When charging the device with a USB cable, should an indicator light be turned on in the device during charging? I am charging the tx16s for the first time, the battery is also new and there is no indicator light on.

The light between the power label and power switch itself will turn green and if you look at the UART port on the bottom right side of the radio, you'll see a red light. You can check your battery voltage with a meter. Ideally something close to 7v.

​@@oded_10 I had problems charging my TX16s when I first got it. Greenlight would blink and not stay on steady. Once I changed to a different USB power supply it worked fine. Funny thing is the 1st one had an output of 5.1V and 2amps which didn't work, 2nd one only have an output of 5V and 1amp but works fine. Go figure!

Good call...

The batteries I have are black, written on them radiomaster, 5000mah, 7.4wh. When I charge them from the device with the cable, no green indicator light is on in the device, not even red below. I measured the voltage of the battery was more than 6.9v. I do not have an external charger yet, I did not need, I use small batteries, 300-520 man, I will later in the day try to charge the batteries of the transmitter.

Did you change your firmware? What are your build options?

@@RCVideoReviewsHi, thanks for the quick reply, I'm using OpenTx on PC and on Radio and they are both the same i.e. Vers. 2.3.11 I'm building an F450 with a NAZA-M V2 flight controller and Radiomaster TX16SE

@@lessmith8906 What are your build options? System -> Version -> OPTS "xxx, yyy, zzz"

@@RCVideoReviews Sorry I'm new to all this, I thought I had answered the build options and the System/Version in my last reply. I'm afraid the OPTS "xxx,yyy,zzz" I don't understand. The System is Windows 10.

@@lessmith8906 On the radio itself from the model home screen, press the System Button, then press page LEFT to get to the Version Screen, then find the line that says OPTS and tell me what's on that line.

Thanks for watching :)