OpenTx Tutorial Trim Options: Radiomaster TX16s • [Intermediate]

This OpenTx Tutorial covers trim options available in OpenTx. You'll be surprised at the effort put into managing trims on this platform.
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[@lasersbee]

Man... It's like you wrote the OpenTX firmware... Perfect detailed explanations of more stuff I didn't know existed in my TX16S. Great stuff John. BTW... Almost 5K subscribers...;-)

[@RCVideoReviews]

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

[@raffman4266]

Your Vlogs are the best tutorial i have ever watched for opentx and radiomastertx16s! Kudos to your channel sir John. You are just amazing

[@RCVideoReviews]

Wow, thanks! Glad the videos have helped you.

[@shanejohnstone4245]

Hey John, thanks for that. I always learn something when I watch your video's. Thanks for all you do

[@RCVideoReviews]

Thanks for watching! You're welcome.

[@jeanlucvassort6411]

so interesting ... and well explained. What a big power in this openTX

[@tomjanicki6989]

Thanks for your videos, I would be so lost without them. Growing to like OpenTx a lot

[@RCVideoReviews]

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

[@alantoseland6629]

Another interesting review most of which I was aware ,but not all. Keep going John

[@RCVideoReviews]

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

[@mrfourtysevenman]

These tutorials are a godsend. I couldn't figure out why the trim amount was so miniscule

[@RCVideoReviews]

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

[@kglas]

Another excellent video from this guy !

[@RCVideoReviews]

Glad you enjoyed it. Thanks for the comment.

[@patrickdepaepe2035]

Great, Keep up the good work.

[@RCVideoReviews]

Thanks, will do!

[@turboromy]

I stay away from logged in chrome browser because it gets annoying with ads, endless suggestion etc. I watched a few of your videos on unlogged Opera browser. I had to come back to chorme and say Thank you very much for your teachings. You show what seems impossible or very difficult to achieve are not so tricky after all.

[@RCVideoReviews]

Glad to help.

[@deancooper5513]

Great detail again John, nice work. Too much detail, no...I think you've got the balance spot on.

[@RCVideoReviews]

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

[@jotapfpv]

Thank you very much!!

[@RCVideoReviews]

You're welcome!

[@karlosio1]

Hi John, do you have a video on how you can set trim switches T5 and T6 for trimming an other channel apart from throttle/aileron/elevator/rudder? (1to4) I have two trainer inputs coming in from a head tracker module and would like to trim those for easy centering.

[@DUKE0010]

I've got Edge TX on my radio master t16S I want to use my T5 or T6 trims how to set up on Channe 5 or 6-7-8 I'm using switch SF for thrust vectoring mixing Rudder to motor servo I want to use a trim T5 or T6 to a motor servo when I switch on the mixing to trim the angle of the motor Thanks you

[@amw4736]

great video! keep up the good work. How about a link to those custom stick ends I would like to purchase some. Thanks!

[@RCVideoReviews]

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

[@markb9896]

Thanks for the vid! Quick question, I recently took the back off my tx to tighten the gimbals now both sliders and one of my pots only adjust half the distance they should. I have recalibrated the tx but still same outcome, could this be a result of pinching something or not getting those particular components back in the proper positions???

[@RCVideoReviews]

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.

[@markb9896]

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

[@markb9896]

@@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.

[@ericuptagrafft2062]

How would you trim a single aileron or elevator side? New owner here trying to set up a new to me used plane and can’t seem to figure this out. The aileron or elevator trims move both sides, but the sides aren’t both aligned with each other.

[@ks4sa]

The sticks are so sensitive that the slightest movement causes a full deflection. Does anyone know why when you move the aileron stick right or left, 1 notch, the control surface is deflected 100%?

[@liamnystrom3933]

Hello do you have a video that shows how to set different trims for different flight modes like if you where in manual and trimmed out but then switched to stableized and wanted to have a different trim set up?

[@RCVideoReviews]

kzbin.infoBcH3uIiVv40

[@CrazyTechLab]

Complete noob here looking to go Radiomaster for my Eflite models. Dumb question but I assume if you save a model you can also save the trim settings so when you fire up again few weeks later and load that model again the trims are already set?

[@RCVideoReviews]

Yup. Trims save with the model.

[@thenerdoligist1292]

Your videos are great. Thank you for making them! I have a weird issue on my Radiomaster TX12 where my aileron trim is reversed from my stick direction. I’ve googled and searched some forums but no luck. Do you know why this might be happening?

[@RCVideoReviews]

All models or just one?

[@thenerdoligist1292]

@@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.

[@thenerdoligist1292]

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

[@RCVideoReviews]

@@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"

[@thenerdoligist1292]

@@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!

[@helichuck1]

Hi John, You are the best, so smart !! I just discovered that my aileron trim is reversed from the stick movement, ( Almost crashed) LOL Do you know how I can fix that??

[@RCVideoReviews]

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.

[@helichuck1]

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

[@bigeclipse718]

Can the tx16s do and save multiple trims depending on flight mode? For example flaps up....the plane has one set of trims and flaps down the plane has another set of trims? If so, can you do a video on that?

[@RCVideoReviews]

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.

[@Arhifisyant]

I am the first person like this video. keep up the good work

[@RCVideoReviews]

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

[@pilotimodele4598]

...👍

[@RCVideoReviews]

👍

[@doc093]

I am trying to setup a delta wing airplane elevator trim is backward how to fix that??

[@RCVideoReviews]

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

[@claudevandaele4402]

Can you use subtrim in a certain switch position. Example you have 3 modes: Normal mode, IDLE UP1 and IDLE UP 2. You want to add subtrim only in e.g. Normal mode.

[@RCVideoReviews]

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

[@claudevandaele4402]

@@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.

[@claudevandaele4402]

I'm stuck :)

[@Stefan_Besteman]

Hey so the tx16s has 6 trim switches and i cant find much about them or how to use them or even what to use them for? Do you know?

[@RCVideoReviews]

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.

[@Stefan_Besteman]

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

[@oded_10]

I bought a TX16S, when I turned it on, there was a flickering message on the screen with a white background 'EMERGENCY MODE', and the device does not respond to anything.

[@oded_10]

@@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.

[@RCVideoReviews]

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.

[@shanejohnstone4245]

​@@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!

[@RCVideoReviews]

Good call...

[@oded_10]

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.

[@davidsebbag1695]

hi great video, i ownder if you could help me , on one of my models I am for some reason unable to trim from mid to lower trim with the Throttle , seems not to be working for some reason all I do I cant make the change , I have no issues on my other model, I have 2 only . this is making me crazy :)

[@RCVideoReviews]

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

[@davidsebbag1695]

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

[@RCVideoReviews]

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.

[@davidsebbag1695]

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

[@mrstude]

My trim is reversed to the stick movement . How do I fix it ?

[@RCVideoReviews]

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.

[@HomeDronen]

🖐️🤠👍

[@RCVideoReviews]

Thanks for watching :)

[@lessmith8906]

Hi, Why do my sub trim outputs show as 512 on the TX and 100 when I'm in OpenTX? Even if I write the model back to the TX from OpenTX they still show on the TX as 512!

[@RCVideoReviews]

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

[@lessmith8906]

@@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

[@RCVideoReviews]

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

[@lessmith8906]

@@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.

[@RCVideoReviews]

@@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.