Tutorial SMC3 Arduino 3DOF Motor Driver and Windows Utilities

When started Game Engine, the Arduino Tx Rx light are off.

Im able to do test in SimTools 1.3, after change the interface setting and arduino file to match with SimTools1.3.

When using SimTools2.5.1 demo version, with latest interface settings and arduino file. Im not able to connect to arduino, When click 'Turn On' button in game engine output testing, arduino Rx Tx light is still remain OFF.

SimTools 1.3 would prompt error if port incorrect, but SimTools2.5.1 demo no.

Yeah!! Now it works. Thank you so much.

Another issue was when running LFS, The motor was not moving, Arduino light Rx ON, Tx OFF.


Game_PluginAPI.dll was pasted to LFS folder

Yes, I missed the step above. Now it works. Thanks a lots.

I am totally confused.... and need some help!

I have previously tried setting this up on a test bench and it was working fine. I have now wired it the same way on the sim rig but it seems that when i power on the motor power supply, this causes the ardruino to shut down, so i am suspecting a short or something. I have tried multiple arduinos (x3) and also tried another 3 mms and the same thing is happening. I can confrim that the motor PSU is outputting 12v and polarities are fine.

The VERY strange this is that i am getting 12v out of the MM 5v and gnd outputs!! however this seems comon for all my MMs, so i am assuming that its something from my end. I dont think i should be getting 12V right?

Wiring exactly as below:

Figured this out and it was super ridiculous! My son was playing with my multimeter and decided to swap the test prods and due to that I reversed polarity!!

I'd like to use the Cytron MDD10A with SMC3, but I can't for the life of me figure out how I might be able to wire it to work with SMC3. The MDD10A is a dual motor driver, and has one Enable/Direction pin and one PWM pin per channel. I've attached the truth table, any guidance would be much appreciated!

Awesome, thank you very much noorbeast. I've given that thread a look.

It seems I may have had more than one issue, as my pot/feedback when my actuators are lowered stays above 0 (I've attached a screenshot of the window including feedback line). I can't enable any Motors when this happens, and the range of my pot is ~54-954 (it's mounted to the actuator shaft). Are there any ways to adjust an offset of the pot?

its a grate job but it has a big limitation in the clip input parameter, for example if i use a hall sensor pot with 0-360 deg movement , it is impossible to limit the movement of the shaft in the range of +/-45deg because the max value of the clip input is 255 and the shaft movement will pass the this angle range with an undesire movement. so why dont you extende max clip input to 512, pls

If the speeds of the two motors are not synchronized, which parameters should I adjust in the code，This problem has bothered me for a long time。

Just wanted to add this for whoever could benefit-

Center offset can be adjusted by changing the lines with analogRead for each feedback pin, like this:

Feedback1 = analogRead(FeedbackPin1) + CenterOffset1;

CenterOffset(1/2/3) are declared at the top of SMC3, but never used.

If you change it to this line and give the Offset a negative value, that motor will go up initially. If you give Offset a positive value, that motor will be lower initially.

Help me please. I have not found an answer to my question on this forum. Therefore, I describe my problem. I had SimTools_v1. 3 and firmware from racingmat and everything worked fine. When I reinstalled and installed SimTools_2. 5.1 firmware SMC 3 v1. 0 and SMC3Utils v1. 01. In SMC3Utils, all engines work fine. At the moment I have only two engines, I will soon put on the third engine (the engines strictly repeat the movements behind the blue dot). But when I turn simtools into output test mode, one motor loses center and lowers slightly, and the other motor rises up even if the sliders are in the center. (Potentiometer loses center !!! ???) What is the reason and how to fix it?

and then in the game it is saved (the chair is crooked).