Tutorial SMC3 Arduino 3DOF Motor Driver and Windows Utilities

Hello, I have spent all afternoon finishing installing the potentiometers with the new printed supports, I have had a long fight with Arduino IDE, I had to delete an avr folder, uninstall, delete all traces and with a previous version, I finally won the fight to the ide...damn hehehe.
I have loaded the smc.ino, edited it to mode 2, edited the port in smc.ini and run the smc.utils utility.

If I move the potentiometers by hand, I see the wave in both motors. I set everything to 0 and clip input to 255 and then max limit to 255.
I set kp at 400 and start raising pwmax and get up to 255 and there is no movement.
I did not have the multimeter, so I have not been able to check if 24 was reaching the input of the ibt-2, the potentiometers are working well by hand if there is movement of the green line.
Now reviewing the tutorial I see that apart from modifying the mode to mode 2, below you have to modify the part that indicates the wiring of the ibt-2 with the arduino

This also has to be edited, at least that's what I understand with Google translator.....
If it's just that I stay calm, if not I will change all the cables between the Arduino Uno and the IBT-2. If that was my mistake, can someone tell me in which row the change begins for connections between the IBT and the Arduino in the code? .


You can't see it there, but I raise pwmax to 255 on both engines. Is it just setting mode 2 or do I also have to modify the connections shown in the first photo?

Thank you for your help and attention.

Hi,
The motor 1 and 2 are off, that means that before taking this screenshot, the movement (or the reading of the sensor) was higher than the upper limit or lower than the lower limit.

If you press the OFF button of motor 1 or 2, does it stays on? If it does, can you retry the process of moving the potenciometer and check if the motor responds?

ok, then you just have to edit mode 1 and put it in mode 2.
Google translator is not perfect and at home I read everything again and the translation makes me understand that I had to modify the wiring part in the smc.ino.
It is now clear to me that it is only an indication of how to connect it correctly.

thanks noorbeast, I will check the wiring and check that there is 24v in the ibt-2

If I press the motor button 1 or 2 it still says Off as in the screenshot, maybe I'm a little confused, but after 4 hours trying to modify the new supports for the DIY sensors, I'm fighting with the Arduino IDE..... When I started smc.utils my head was no longer working...haha, sometimes it's better to stop and continue at another time with a fresh head.
I will do the process again moving the potentiometers out of the limits, I think I made that mistake, but I was no longer thinking clearly.

Thanks again to both of you for responding, I will keep you informed.

Well, it turns out that I put the potentiometers outside the limits and yesterday my brain couldn't take it.

This morning before going I was already imagining what that error was, since this sim already worked before and the adaptation of the potentiometers was fine, since the wave was moved manually hehehe, I was simply very confused.

Today I centered the potentiometer waveform with the blue line and there is already movement. Only engine 1, 2 will be there at another time, they claim me at home.

Sorry for the orientation of the video, when recording it vertically it only allows me to create a short and does not let me insert that type of video, so I have rotated it and uploaded it as a normal video, the next one will be taken into account when recording it horizontally

How many degrees does your engine turn? Is it about 90 degrees in the video? What shaft position sensor do you have? I am using an AS5600 magnetic encoder. 0-360 degrees which gives an output of 0-5V. After turning on, the motor moves to a position corresponding to 2.5V - 90 degrees and rotates within 1.25V - 3.75V from 0 to 180 degrees.

I am using the SS495A1 and a neodymium magnet.
For the moving parts an old potentiometer.
I bought this coml 10 years ago......I don't remember the specifications, but I think they were in the range of 0 to 5v....my potentiometers are DIY, they can rotate 360° infinitely and will not break.
Sorry for the delay in answering, bad dates with the holidays.
Greetings, Petar2

Hello everyone,
A few weeks ago I worked on a 2 dof as described and got everything working, now I have a problem that keeps causing failures after an indefinite period of time. From the right electric motor, it fails completely after I reset the aduino and it works again for a while. Maybe someone has a tip.
Best regards
Manu

It doesn't matter when driving straight, in curves. Could it be that the shutdown comes from the motor driver H-bridge. At the beginning I had a thermal problem with the bridge and installed a fan.

I found the problem, I put thermal paste between the circuit board and the cooling fins of the H-bridge. Now it works without any problems

because i cant found U JOINT, if i add one more motor and make it 3dof, will be work with this code? need to modify?

I can use as the 2dof or the 3rd need to be for traction? i dont want traction. just 3dof like 2dof.

Hello
I have a little problem, im use hall sensor potentiometer , it has 180 degree. in the middle I have 2,5V on one end 4,8 oon second 0 its normal voltage for the usb. Now my question. I must set my limits like this: Max limits on 255 and clip on 220. How to fix it? Make gearbox or so? Or it's not a problem?

its not a problem with centering or so. My problem and question is not how to set the potentiometers and how to centre the feedback. My question is about a small range. It is not about the range in which the rig itself moves, it is about the limits in the smc. I now have to have the limits set to 250 Max and 220 Clip. The movement of the platform is large even very large, but the range of the potentiometers is no longer. I'm wondering if I need a gear for the potentiometers, and if so, I'll have to look for it somewhere.