Tutorial SPS - Sabertooth Packet Serial PID motor driver sketch w/SoftStart

Hello all, can anyone tell if this sketch w/softstart also compatible with sabertooth 2x12 model?

I wondered if anyone had any advice for me, I used this sketch with a Sabertooth 2x32 to build a two motor belt tensioner last year. Its worked really well but the last few days every time I'm in game, the first time the belts pull tight it stops working.

I've tried everything I can think of to trouble shoot it but run out of inspiration now so just after some wisdom.

Thanks
Fred

Hi guys. I go to upgrade my 2 dof to 4 dof. For the moment go to put one motor for corner. Is easy to mod the chasis. Later i Will build a new chasis with 3 dof + traction Lost but for the moment this is the idea. Ok, i have one sabertooth 2x32 and one sabertooth 2x60. This is a problem? For other side i go to use 2 Arduino with smc3. I supuse need to use interface 1 and 2 in simtools but i am not sure about the configuration. In interface 1 i need put axis 1 and axis 2 and interface 2 axis 3 and axis 4? Some link with a similar project?

Yes, i have a paper manual in my room. I must to use another outputs un Arduino interface 2 or are the same?

https://www.xsimulator.net/communit...to-4dof-arduino-sabertooth.16850/#post-225142
This is my thread. Some thread with a similar project? I search by don't forget nothing.
Cheers

Apologies for not responding to this, it ended up being a simple issue. I'd not had time to investigate it until this weekend but found a faulty solder on the connector between the psu and the Sabertooth.

Hello,

I tried to use a modified version of the script here, the SPS_8.2_softstart modified to work at 38400 BAUD and it is working fine with SMC3 with 2 motors. I have 2 diferrent problem now. I am not able to connect a third motor. I followed the guide and set the address port on the secon sabetooth on the 129 and connect to the arduino in the port 12. It doesn't work and I am not sure how to fix it. Can someone help me out? I am stucked here and out of options, plus my knowledge is very limited.

Thanks a lot!

Sorry for creating confusion. After reading all the posts i figured i need 2 arduinos. I was misslead by the code description that makes you think you can connect 2 sabertooth to the same arduino.
Thanks anyways guys! Now i will try to sort out the connection issues with simtools and flypt

Hi everyone. After researching a bit online I got kind of an issue. The system that I am trying to achive with my build needs to run basically always 3 motors simultaniusly. I am trying to control the movement of a sphere sitting on top of 3 omniwheels. I am wondering if it is possible, to make math easier, to conncet more then 1 sabertooth to the arduino uno. Otherwiese it will be hard to control them separately i guess. Either way, I have no idea how to proceed with the build.

hi there i have a question for the Arduio Sketch.

there is no need to change anything within the code ? i plan to change the motors in my system to more watt and more rpm ... is it just a configuration thing in SMC3 Software or must i reupload an edited sketch ?

Hello,

I am having some issues with my setup with the softstart code. https://www.xsimulator.net/communit...360-hamster-ball-sim.17555/page-2#post-236843

Any help would be really appreciate it. Sorry guys but I am kind of stucked

Thanks!

That is the problem. I am not sure. All the connections seemed done as described. When i test the motors with SMC3 they run perfectly.

The problems starts with flypt and simtools.

With flypt i am able to control one motor only instead of 2 even though in theory I think I did it all right and with simtools nothing works. I have literally non even a signal of movements.
For sure I am doing something wrong. Not sure where though.

Hello,

I am brand new in starting my DIY journey, and decided to start slow by making sure I can get the motion control part working before anything else. I just purchased an Arduino R4 Minima (in my infinite wisdom that newer must be better) with plans to use with a Sabertooth 2x32 motor controller. I was able to successfully upload my first code (Blink) and then decided to upload the SPS code. That is when I determined the current Uno R3 SPS code does not work with the new R4 without some changes. Apparently because of the new chip, AVR specific code for the R3 won't work out of the box.

So my question is, has anyone used the new Arduino Uno R4 Minima, or has anyone modified the SPS code for it? I'm am a very beginner coder for this stuff, but if someone could point me in the right direction, I could give it a try to update the code.

• The first error that pops up is "Compilation error: 'PORTD' was not declared in this scope". I assume that the pin/port controls are different, but not sure what to change it to?
• 
  
• Does this only effect the Arduino SPS code, or would I also have to modify the Sabertooth Arduino Library code as well? Will this effect how the Arduino communicates with the Simtools software?

Any help is greatly appreciated. Worse case I'll just purchase the Uno R3 and start from there. But it may be worth it to update for the R4 as it does have some nice improvements. Not sure it matters for this application.

Thank you,
Ray