Radiomaster MT12
#121
Tech Champion
iTrader: (2)
My MT12 arrived yesterday. Haven't had time to play with it much since I'm heading overseas today, but my initial impression of the menus is that it definitely looks like it was designed by a bunch of engineers with little UX consideration. Lots of options but not particularly intuitive. The ergonomics feel a bit odd, might take some getting used to. I've got fairly big hands but the trigger throw felt like a bit of a stretch. The calibration on the throttle seems a bit concerning, it'll only hit 98% when braking normally. I need to press forward and up simultaneously to hit 100%. The left dial also sits at around 1-2 points to the left when you hit the neutral point. Turning the radio on is also a bit weird, you have to hold the button while the screen does the animation. If you release it before the animation completes the power cuts out immediately. There's a setting in the menu to change it but even when I set the delay to 0 it still requires me to hold it for at least a second or 2.
#122
My MT12 arrived yesterday. Haven't had time to play with it much since I'm heading overseas today, but my initial impression of the menus is that it definitely looks like it was designed by a bunch of engineers with little UX consideration. Lots of options but not particularly intuitive. The ergonomics feel a bit odd, might take some getting used to. I've got fairly big hands but the trigger throw felt like a bit of a stretch. The calibration on the throttle seems a bit concerning, it'll only hit 98% when braking normally. I need to press forward and up simultaneously to hit 100%. The left dial also sits at around 1-2 points to the left when you hit the neutral point. Turning the radio on is also a bit weird, you have to hold the button while the screen does the animation. If you release it before the animation completes the power cuts out immediately. There's a setting in the menu to change it but even when I set the delay to 0 it still requires me to hold it for at least a second or 2.
Calibration is in the SYS menu, screen 6/7 by default.
#123
Tech Apprentice
I didn't like the feel of the MT12's steering, so I modified it.
1) I removed the burr in the hinge pin hole of the lever so that the lever could move smoothly.
2) I removed the looseness of the bearing (850ZZ) on the back side of the steering shaft.
3) I removed the initial tension of the return spring and increased the spring rate.
I prefer a stiffer spring, so I set the number of turns to 11 turns.
The free length of the spring was set to a little over 15mm so that the pretension could be adjusted to 0.
With the above modifications, the steering feel of MT12 has been greatly improved.
1) I removed the burr in the hinge pin hole of the lever so that the lever could move smoothly.
2) I removed the looseness of the bearing (850ZZ) on the back side of the steering shaft.
3) I removed the initial tension of the return spring and increased the spring rate.
I prefer a stiffer spring, so I set the number of turns to 11 turns.
The free length of the spring was set to a little over 15mm so that the pretension could be adjusted to 0.
With the above modifications, the steering feel of MT12 has been greatly improved.
#124
Tech Apprentice
Unfortunately, I cannot prepare an anechoic chamber.
I think that even if I test MT12 (elrs), I will only get the same results as other people's tests.
You probably want to check that, but testing takes a lot of effort. I might do it if I feel like it, but please don't get your hopes up.
By the way, I have previously conducted a latency test using the MPM(JP4in1) and the REDPINE protocol.
Radio : X9Lite (EdgeTX2.6, serial_x4_mod)
TX module : JP4in1SE
Receiver : R84 (REDSKY mod)
Latency : 5.7ms(ave.)
I believe the REDPINE protocol is the fastest in MPM, but it still falls short of elrs. MT12 (4in1) has the advantage of being able to bind with many existing receivers, but if looking for performance, I think MT12 (ELRS) is the only choice.
I think that even if I test MT12 (elrs), I will only get the same results as other people's tests.
You probably want to check that, but testing takes a lot of effort. I might do it if I feel like it, but please don't get your hopes up.
By the way, I have previously conducted a latency test using the MPM(JP4in1) and the REDPINE protocol.
Radio : X9Lite (EdgeTX2.6, serial_x4_mod)
TX module : JP4in1SE
Receiver : R84 (REDSKY mod)
Latency : 5.7ms(ave.)
I believe the REDPINE protocol is the fastest in MPM, but it still falls short of elrs. MT12 (4in1) has the advantage of being able to bind with many existing receivers, but if looking for performance, I think MT12 (ELRS) is the only choice.
#125
Tech Apprentice
I'm confident I'm going to be able to set up endpoints (weight?) but not sure about how to do neg expo on throttle and steering.
#126
Tech Apprentice
Initial setup (neutral, endpoint, etc.) is usually done on the "OUTPUTS" screen (page 6/11). EXPO will be held on the “CURVES” screen (page 7/11).
#127
Tech Apprentice
I said this.
"I will only get the same results as other people's tests"
Yes, this is just my "guess" and I have no proof. It is natural to have doubts about the results of my "SANWA test".
However, I think you can trust my "SANWA test" to a certain extent. This is because I have conducted other latency tests in the past and have confirmed that I have obtained almost the same results as other testers. I posted the REDPINE test results because I wanted to convey that.
My test results may not be sufficient for quantitative consideration, but I think they can be used for qualitative comparison. Please take it as such.
#128
Tech Elite
iTrader: (85)
OK I am going to grab this
https://www.amainhobbies.com/radioma....5a2s/p1533868
as a change of radio this year, I chose this over the 4n1 for the super fast response. Are there different types of receivers? I need one for my 5th scale, 8th scale, 1/14 and 1/12th scale and trying to get the proper units. any help is appreciated
https://www.amainhobbies.com/radioma....5a2s/p1533868
as a change of radio this year, I chose this over the 4n1 for the super fast response. Are there different types of receivers? I need one for my 5th scale, 8th scale, 1/14 and 1/12th scale and trying to get the proper units. any help is appreciated
#131
Tech Apprentice
Some accessories have just come through on email. Most look like spares, trigger assy, wrist strap etc, but there's what looks like a right to left hand enclosure option, which I believe is new.
https://www.radiomasterrc.com/produc...48375063019751
https://www.radiomasterrc.com/produc...48375063019751
#132
Tech Rookie
For comparison with MT12.
I have measured the latency of SANWA M11X and M17, and it is disappointing that it exceeds your expectations.
M11X latency : 35ms(ave.)
M17 latency : 22ms(ave.)
h ttp://sybrand.blog.fc2.com/blog-entry-312.html
h ttp://sybrand.blog.fc2.com/blog-entry-355.html
I have measured the latency of SANWA M11X and M17, and it is disappointing that it exceeds your expectations.
M11X latency : 35ms(ave.)
M17 latency : 22ms(ave.)
h ttp://sybrand.blog.fc2.com/blog-entry-312.html
h ttp://sybrand.blog.fc2.com/blog-entry-355.html
It shows hugely different results than your findings. It shows an average latency of 4.1 ms with a standard deviation of 0.730 ms. And this results are from the Sanwa M12 NOT M12S or even the Sanwa M17.
#133
Tech Rookie
When you receive your radio, the first thing you should do is calibration. It may not be necessary, but there's no harm in doing it.
Initial setup (neutral, endpoint, etc.) is usually done on the "OUTPUTS" screen (page 6/11). EXPO will be held on the “CURVES” screen (page 7/11).
Initial setup (neutral, endpoint, etc.) is usually done on the "OUTPUTS" screen (page 6/11). EXPO will be held on the “CURVES” screen (page 7/11).
General rule of thumb for EdgeTX is to use the inputs screen for your rates and expo. That's a carry over from planes where you might have multiple outputs tied to the same input by different mixes. The most common one is you have a servo per aileron. So you need two aileron mixes. To avoid having to apply your dual rates or expo config to both mixes you can instead apply it to the single Aileron input, which saves some work and room for error like apply an expo change to just one aileron. With a car where you just have throttle and steering it doesn't really matter of course.
There's a lot of different ways to do the same thing in EdgeTX, not really a wrong way.
#134
Tech Apprentice
#135
Tech Apprentice
Something seems to be off either with your methodology of testing or the one condac used in This Thread (Radio Benchmark program and results).
It shows hugely different results than your findings. It shows an average latency of 4.1 ms with a standard deviation of 0.730 ms. And this results are from the Sanwa M12 NOT M12S or even the Sanwa M17.
It shows hugely different results than your findings. It shows an average latency of 4.1 ms with a standard deviation of 0.730 ms. And this results are from the Sanwa M12 NOT M12S or even the Sanwa M17.