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Messages - Costique
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« on: February 29, 2020, 03:55:02 AM »
Yes, I read some reviews before to go with Sabertooth and I still cannot exclude that the wrong signal sent with improper functions arrangement (not wrong wiring) which could damage the firmware. Once I had those red+S2 LED lightening and I cannot explain why and what error reported. I bought a USB-TTL serial, tomorrow I planned to check with DEScribe (I think this serial shall be useful in the future as my dreams about the commander gestures can be done under an Arduino board command. I have to move my living place and a lot of others things in line to be done but I still dream on it. And Arduino is complete new for me). I keep you informed.
PS: I made it today, is working!!!
The DEScribe tool was able to change the baud rate properly to 38400 bauds, and I am able now to drive the tank using the serial package. The end of beginning! Thanks LukeZ, I really was lost without your support.
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« on: February 25, 2020, 11:17:20 AM »
Hi LukeZ,
Thanks again for your sustained effort supporting me.
I am done with the Sabertooth controller, I just think that the RC variant is cheaper. My intention was to have the machinegun controlled with 2 servos on RC outputs and some ideas about some other stuff but for the moment I am OK and I will control the rest of them directly from the radio as servos. It is a long way until there, I work intermittently on the tank when time and my personal mood permit (I need to be in the right spirit to make it).
My plans include an electromagnetic gun (natural recoil) shooting plastic balls with flash and smoke, a working machinegun shooting 1mm diameter metal balls (airsoft) and a moving and a gesticulating commander. I will be very happy to succeed but this will take time ...
I will modify the functions as you suggest, I like it much more than the actual setup.
The 9600 is not working, I have just one motor moving, not both of them. I understand that the signal for both is mixed in the package but somehow the second motor is getting no commands, as at the 9600 bauds just one motor commands are read in Sabertooth. And the automatic update of the signal speed is not recognized. Maybe I will try the DE software with serial adapter, just to see if work.
3
« on: February 24, 2020, 02:49:54 PM »
Hi LukeZ,
I did it, the results are:
1. with baud rate to 9600 the left motor is working with strange behavior, is working even the transmission is not engaged. After one command of transmission engage-disengage, come to normal. At 19200 and 38400 is not working at all.
2. RC outputs are working but the same behavior, the motors are under power even the transmission is not engaged. After a transmission cycle, the power is coming just with the transmission engaged. It seems a little difference between the motors speed, how we assure the straight-line drive?
I did not like this too much as 2 RC outputs are gone but for the moment seems the best arrangement to continue the works on it.
Is it possible a problem with the firmware in Sabretooth, not to recognize-reset the superior baud and to decode wrong the serial pack?
Thanks a lot for your support, I had results, finally.
"Now this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning"- W. Churchill
4
« on: February 24, 2020, 12:10:07 PM »
Hi LukeZ,
Good and bad news. The analog mode delivers 6V per motor (see pictures attached) and when I connected the motors, I had them moving, following the test settings (4 OFF, rest ON). DE manual is saying "If there is motor output, verify the proper signal is being sent to the driver for the input mode you're using."
The normal set of switches are 1, 2 OFF, rest ON.
The blue LED is flickering with the throttle. The connection is ok, I verified cables with Ohmmeter. The snoope is OK. I attach the settings file again, today saved. Any idea?
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« on: February 21, 2020, 07:50:34 AM »
Hi LukeZ,
In fact, it is exactly what I want but because I have no movement I did not notice the difference. I really want the transmission command as I would like to throttle the engine without move, as usual, all drivers do. Just think about the warm-up procedure, before the battle. I think I have something here to check with the sound card, the sound is not different from transmission off with transmission on, from what I noticed. For me seems to have the clutch activation in both of them, just at the beginning of the throttle.
And, if we are here - at this subject, I noticed that the engine rev sound is going linear with the throttle. But the Panther had a 7 gears transmission and I want to have a sloping sensor that makes the revving sound depending on the terrain slope and maybe in the future to look at inertial behavior as the engine will react differently to different throttle input depending on actual speed and slope. It will be nice to reproduce the dead of the engine when a man fails the clutch - transmission - engine throttle synchronization.
I have tested the transmission on and off with the engine on the idle, no success. But I will test it again next week, just to be sure. I need to clarify myself also about what manual transmission function is doing...
As is seems today, it is just the beginning of a long journey.
I found the Dimension Engineering "Basic Troubleshooting for Motor Drivers", first is to check the output in analog mode. There are a lot of variants of what can be wrong and most of them have as conclusion sustained damages on the controller and need for replacements. This, if so, will push me on new territory as I did not replace a circuit on board for over 25 years...We learn entire life... I hope to found the replacements and be able to update the firmware.
6
« on: February 20, 2020, 03:24:23 PM »
Thanks LukeZ, your analysis is exact. I do not have the RC variant of Sabretooth 2x12, I have the normal one, as is in the attached link. But maybe it is an idea to look on its firmware, I need to go a little deep in it as once and only once I had the red led with green led S2 lighting which is an overheating error, even never moved the motors or heated (cold as Iceland). I chose the bigger one because the tank has almost 6 kg and weight is possible to increase.
The sound arrangement will come in line, I have all prepared but I want to have the drive train working first.
I will present a photo of connections next week, now I put all back to have a static model, at least.
About transmission, how I could disengage it? I do not have a function for on/off of it from what I know and did not intend it now as I am just on begin of the function discovery.
7
« on: February 20, 2020, 09:37:30 AM »
Hi LukeZ, thanks for your efforts. Attached are the TCB settings, which are the first set, just to make me clear with functions and settings (the working tank shall use the 3 positions switches with the toggle on/off functions, for example). MY mistake in explanations, is not a servo, is a speed reducer with a motor that one from Taigen. I have measured again the output on A and B with a voltmeter, are exact as supposed, 0V on middle and increase to maximum positive or negative, depends on the stick position. The only explanation is just poor connections on screws, I will re-do it next week, until Monday no work on Tank, I need to put back all parts to be at least a static model (some visitors in the weekend).
I checked again the Sabretooth 2x12 with the voltmeter, the same thing (0V), just one particular thing, after I moved to maximum the MA suddenly shown 0.87V which remains the same, no matter the stick position. The red/green LEDs work fine, even not every time when I start the TCB. Do you have a clue how I can test the serial controller?
the Benedini Mini was set up for working with TCB by the originator but instead of machine gun 2 I have some orders in german or the cannon fire sound is dumped ( the sound of the shell on the floor is very clear) and is doubled, is going too times.
Thanks again and I hope to have good news next time.
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« on: February 19, 2020, 03:36:57 PM »
Hi all, I hoped to be in the same situation (I missed the activation of the motor function) but after I activate it, still no output on MA and MB, 0V . The blue led (serial send) increase the blink with the throttle, the red and greed led to recognize the direction and turn, the sound is good from the Benedini mini board but the output is 0. I have the battery new charged, is not from it. The battery is 7,2 V NiMH, the green led on Sabretooth is S1 OK. The Sabretooth serial dipswitch is set up for address 128 (1 and 2 OFF, rest ON) with the baud rate modified according to the procedure to 38400 bauds/sec (from original fabric 9600).
Separated, I tried the functionality of the Motor A and Motor B, when I connected the original Taigen turret drive motor to them, both does nothing, the motor is not rotating. I measured today the tension on terminals and I have the tension there, almost 8 V as should be. Can be malfunction related to the Taigen servo for turret rotation?
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