Ok so here is the update. Set switches to 1,3 & 6 on, the rest off. The ez-b gui has the correct settings on the sabertooth motor controller relating to two motors forward, rev, right, and left using 1-127 & 128-255 respectively there are no boxes for stop however. This may not be a problem but I cannot get the motor to stop turning (again, mine is a modified servo full 360 either direction) I plugged motor two into motor one slot and it worked couldn't get both to work together. It may be the sabertooth and in don't mind sending it back, I'd just like to be sure there is nothing I'm missing on ez-b before I do. I'm not utilizing signal 2 on the sabertooth, just s1 jumping to d6 on the ez. Since this is two motors am I supposed to use both? If so I only have the option to use one ez-b connection in the drop down. Hope this makes sense. I'm using Bluetooth if this matters. M

Sounds like you have everything correct (you confused me by calling your motors "modified servos". they are not. A modified servo is a different animal entirely, they are just motors).

Only thing you might want to try (and this doesn't really make sense with the symptoms) is to power your EZ-B independently rather than using the 5v BEC of the Sabertooth. The 5V BEC is only 1 Amp which is a little low for the EZ-B (although with nothing else being controlled should be sufficient) and the EZ-B actually runs a lot better on 7.5 volts than 5 (although again, shouldn't really be an issue with only one connection). If you do this, be sure to tie your grounds together or it definitely won't work.

The S2 is used when using the Sabertooth in R/C mode (you connect one signal to S1 and 1 to S2 and treat them as servos with a regular movement panel) but Serial mode has been much more reliable for users since DJ created the Sabertooth control panel.

Alan

Are you using the modified servo Movement Panel or the sabertooth movement panel? To stop both motors in a script you would use sendserial(D6,38400,0)

Ok so I contacted sabertooth and the lady said to set all pins on except for #4 and voila both motors spun free (albeit independent of ez-b control and I got the proper voltage from the s1 connections so I've ruled out sabertooth broken. Should I use a ground &5v wire to d6 along with the signal jumper I have now? I'm using the sabertooth controller on ez-b for movement with pins 1,3&6 on the rest off. Is there another pin setting I can try? I have not independently powered the board, I have to dig up some fresh batteries tomorrow. I'm sure this is an easy something I'm missing. Both components have been really well made and easy to use.

Any additional ideas?

Thanks Matt

one more update. I powered the ez-b separate from the sabertooth 2x25 and grounded properly. I also used two much smaller motors for grins. Still the same thing. Only one motor turns, the other does not. I tried a few different baud pin settings. Some would have the one motor spin when I clicked on stop or similar.

Has anyone had luck with other pin settings? I'm sort of at a loss.

thanks Matt

Have you tried using EZ=Script commands to make the motors start and stop? Something like;

#Stop both motors
SendSerial(D6,38400,0)

#Spin motor 1 full speed reverse for 1 second
SendSerial(D6,38400,1)
Sleep(1000)

#Spin motor 1 full speed forward for 1 second
SendSerial(D6,38400,127)
Sleep(1000)

#Stop motors
SendSerial(D6,38400,0)

#Spin motor 2 full speed reverse for 1 second
SendSerial(D6,38400,128)
Sleep(1000)

#Spin motor 2 full speed forward for 1 second
SendSerial(D6,38400,255)
Sleep(1000)

#Stop motors
SendSerial(D6,38400,0)

If that works correctly then the problem is in the config for the Sabertooth Movement Panel. If it doesn't work then the problem is with the wiring or the setup of the Sabertooth.

The pin settings should be as shown on the Sabertooth help page. This should put the sabertooth in Simplified Serial mode with a baud rate of 38400.

It shouldn't make any difference but you could also try on a different digital pin, D0 for instance.

I thought that on the V3 board that only D0 was the serial port.

I have 2 sabertooth 2 x 5 controllers running (via serial script commands) just fine from ports D1 and D7 on my EZb 3 board...