MicroBahner
commented
4 years ago Can you show a schematic of your hardware? That would help answer your question.
Closed Chemdawgds closed 3 years ago
MicroBahner
commented
4 years ago Can you show a schematic of your hardware? That would help answer your question.
Chemdawgds
commented
4 years ago I apologize. I thought I had attached a picture of the dcc board. I dont have a schematic of the Tb6600. However. There are your two power, the 4 wires to the stepper, then you have pulse plus and minus, direction plus and minus, and enable plus and minus inputs. The arduino is the uno.
I had the plus for the pulse, direction, and enable going to 4,5,6 input pins on arduino. Pin 3 is the home switch. Pin 2 is the dcc signal from the dcc board. All the minus wires from the driver go to the arduino minus pin.
I hope this will help.
On March 16, 2020 9:27:30 AM Franz-Peter notifications@github.com wrote:
Can you show a schematic of your hardware? That would help answer your question. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.
kiwi64ajs
commented
4 years ago Hi Patrick,
Try commenting out line 157 of the DCCInterface_TurntableControl example sketch:
https://github.com/mrrwa/NmraDcc/blob/master/examples/DCCInterface_TurntableControl/DCCInterface_TurntableControl.ino#L157which is:
stepper1.setPinsInverted(false, false, true); // Its important that these commands are in this orderas this changes the default stepper pin polarity to what was needed for the A4988 but the TB6600 is probably different.
What this will do is leave the pin polarity within the library as default which is not-inverted, which should hopefully work with the TB6600
HTH
Alex Shepherd
On 17/03/2020, at 4:39 AM, Chemdawgds notifications@github.com wrote:
I apologize. I thought I had attached a picture of the dcc board. I dont have a schematic of the Tb6600. However. There are your two power, the 4 wires to the stepper, then you have pulse plus and minus, direction plus and minus, and enable plus and minus inputs. The arduino is the uno.
I had the plus for the pulse, direction, and enable going to 4,5,6 input pins on arduino. Pin 3 is the home switch. Pin 2 is the dcc signal from the dcc board. All the minus wires from the driver go to the arduino minus pin.
I hope this will help.
On March 16, 2020 9:27:30 AM Franz-Peter notifications@github.com wrote:
Can you show a schematic of your hardware? That would help answer your question. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.
— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/mrrwa/NmraDcc/issues/36#issuecomment-599605787, or unsubscribe https://github.com/notifications/unsubscribe-auth/AB5Y53JYNW3O7RDODDZ6XRTRHZB4XANCNFSM4LLURMRQ.
Chemdawgds
commented
4 years ago So I was on my bench last night and I tried something. I am loved pins 4 5 6 to 8 9 and 10, and it worked. So looking at your email here about commenting out the particular code, I think you are right. I haven't got to try it yet but I will. I will let you know. Thank you.
On March 17, 2020 12:37:38 AM Alex Shepherd notifications@github.com wrote:
Hi Patrick,
Try commenting out line 157 of the DCCInterface_TurntableControl example sketch:
which is:
stepper1.setPinsInverted(false, false, true); // Its important that these commands are in this order
as this changes the default stepper pin polarity to what was needed for the A4988 but the TB6600 is probably different.
What this will do is leave the pin polarity within the library as default which is not-inverted, which should hopefully work with the TB6600
HTH
Alex Shepherd
On 17/03/2020, at 4:39 AM, Chemdawgds notifications@github.com wrote:
I apologize. I thought I had attached a picture of the dcc board. I dont have a schematic of the Tb6600. However. There are your two power, the 4 wires to the stepper, then you have pulse plus and minus, direction plus and minus, and enable plus and minus inputs. The arduino is the uno.
I had the plus for the pulse, direction, and enable going to 4,5,6 input pins on arduino. Pin 3 is the home switch. Pin 2 is the dcc signal from the dcc board. All the minus wires from the driver go to the arduino minus pin.
I hope this will help.
On March 16, 2020 9:27:30 AM Franz-Peter notifications@github.com wrote:
Can you show a schematic of your hardware? That would help answer your question. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.
— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/mrrwa/NmraDcc/issues/36#issuecomment-599605787, or unsubscribe https://github.com/notifications/unsubscribe-auth/AB5Y53JYNW3O7RDODDZ6XRTRHZB4XANCNFSM4LLURMRQ.
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Chemdawgds
commented
4 years ago Hey Alex. So I commented out that line, and there was no difference. So I moved pins 4,5,6 to 8,9,10 and it works great. Now dont quote me on this, but I believe the first 8 pins are pwm? The TB6600 uses that H bridge setup. So I believe it's a voltage thing. Everything works very well on 8,9,10. Only thing I would like to do is figure out how to lock the rotor. Then the stepper gets to the spot it is going and stops, you can turn it freely. I'm not sure how you would set it up so when it gets there its locked.
I want you to know how much I appreciate the help. I got zero help from the arduino forum, and a few other places. Really I was asking for a push in the right direction. Thank you.
Pat
On March 17, 2020 12:37:38 AM Alex Shepherd notifications@github.com wrote:
Hi Patrick,
Try commenting out line 157 of the DCCInterface_TurntableControl example sketch:
which is:
stepper1.setPinsInverted(false, false, true); // Its important that these commands are in this order
as this changes the default stepper pin polarity to what was needed for the A4988 but the TB6600 is probably different.
What this will do is leave the pin polarity within the library as default which is not-inverted, which should hopefully work with the TB6600
HTH
Alex Shepherd
On 17/03/2020, at 4:39 AM, Chemdawgds notifications@github.com wrote:
I apologize. I thought I had attached a picture of the dcc board. I dont have a schematic of the Tb6600. However. There are your two power, the 4 wires to the stepper, then you have pulse plus and minus, direction plus and minus, and enable plus and minus inputs. The arduino is the uno.
I had the plus for the pulse, direction, and enable going to 4,5,6 input pins on arduino. Pin 3 is the home switch. Pin 2 is the dcc signal from the dcc board. All the minus wires from the driver go to the arduino minus pin.
I hope this will help.
On March 16, 2020 9:27:30 AM Franz-Peter notifications@github.com wrote:
Can you show a schematic of your hardware? That would help answer your question. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.
— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/mrrwa/NmraDcc/issues/36#issuecomment-599605787, or unsubscribe https://github.com/notifications/unsubscribe-auth/AB5Y53JYNW3O7RDODDZ6XRTRHZB4XANCNFSM4LLURMRQ.
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I have a very big interest in this example. My hardware is a bit different though. I have my dcc interface going to my arduino uno, along with a TB6600 stepper motor driver. When I load the sketch for this, and open the serial monitor. I can see that the arduino is getting the dcc responses. However mo stepper is not moving. I can feel that it's on. It just doesnt move. Ideas?