RoboSavvy Forum

rb-110 example code

2011-03-30T15:43:58+01:00

To everyone who uses .NET:

RoBoIO 1.7 software introduction slides & sample codes for both C# & VB.NET are now available in the binary package of RoBoIO 1.7 .NET Warper. Please go to http://www.roboard.com/download_ml.htm to download the package.

Statistics: Posted by roboard — Wed Mar 30, 2011 3:43 pm

rb-110 example code

2011-02-16T06:25:13+01:00

Thanks, it worked now.

Best regards, Vlad

Statistics: Posted by hellu — Wed Feb 16, 2011 6:25 am

rb-110 example code

2011-02-16T02:13:20+01:00

If you use channel 15, must assign values to position[15] and home[15].

please, change

uint[] position = new uint[32];
uint[] home = new uint[32];
home[0] = 1500 ;
position[0] = 1800;

uint[] position = new uint[32];
uint[] home = new uint[32];
home[15] = 1500 ;
position[15] = 1800;

and try it again.

Statistics: Posted by roboard — Wed Feb 16, 2011 2:13 am

rb-110 example code

2011-02-16T00:04:10+01:00

roboard wrote:
please check the range of the servo duty.

If the servo position that you set is out of the range, the servo will not work.

I've encountered this problem with the width out of range and I cannot solve it, any value I put in the nofb_home_position and servo_position arry. What type of data must it contain, I see it is uint and the value is in us. For the middle of the servo i guess it is 1500, right?

The error that it gives me is
"warning: set_play mode_pulses() receives width 0 out of range for channel 15! "
What can it be the problem?

Here is the code. 1st it should go to 1500 then to 1800, but it goes to the end and gives "warning: set_play mode_pulses() receives width 0 out of range for channel 15! " in the console.

using System;
using System.Collections.Generic;
using System.Text;
using RoBoIO_DotNet;
using System.Threading;

namespace example_sv
{
class example_sv
{
static void Main(string[] args)
{
uint[] position = new uint[32];
uint[] home = new uint[32];
home[0] = 1500 ;
position[0] = 1800;
RoBoIO.roboio_SetRBVer(RoBoIO.RB_110);
if (RoBoIO.rcservo_SetServo(15, RoBoIO.RCSERVO_SERVO_DEFAULT_NOFB) == false)
{
Console.Write(RoBoIO.roboio_GetErrMsg());
return;
}
if (RoBoIO.rcservo_Initialize(RoBoIO.RCSERVO_USECHANNEL15) == false)
{
Console.Write(RoBoIO.roboio_GetErrMsg());
return;
}
RoBoIO.rcservo_EnterPlayMode_NOFB(home);
RoBoIO.rcservo_MoveTo(position, 1000);
Console.ReadLine();
RoBoIO.rcservo_Close();

return;
}
}
}

Best regards, Vlad

Statistics: Posted by hellu — Wed Feb 16, 2011 12:04 am

rb-110 example code

2011-02-15T03:05:50+01:00

please check the range of the servo duty.

If the servo position that you set is out of the range, the servo will not work.

Statistics: Posted by roboard — Tue Feb 15, 2011 3:05 am

rb-110 example code

2011-02-14T19:33:39+01:00

roboard wrote:
At the beginning, the servo will back to nofb_home_position(here is 1000).

roboard wrote:
Code:
// play servo RoBoIO.rcservo_EnterPlayMode_NOFB(nofb_home_position);

And then the servo will move to servo_position(here is 2000) during one second.
roboard wrote:
Code:
// move to the specified position by 1000ms (1 second) RoBoIO.rcservo_MoveTo(servo_position, 1000);

You could try to change the values of nofb_home_position and servo_position.

Done that the first time with channel 15 and no change. Is there something with my servo? Should i try a new one?

Statistics: Posted by hellu — Mon Feb 14, 2011 7:33 pm

rb-110 example code

2011-02-14T08:24:39+01:00

At the beginning, the servo will back to nofb_home_position(here is 1000).

roboard wrote:
Code:
// play servo RoBoIO.rcservo_EnterPlayMode_NOFB(nofb_home_position);

And then the servo will move to servo_position(here is 2000) during one second.

roboard wrote:
Code:
// move to the specified position by 1000ms (1 second) RoBoIO.rcservo_MoveTo(servo_position, 1000);

You could try to change the values of nofb_home_position and servo_position.

Statistics: Posted by roboard — Mon Feb 14, 2011 8:24 am

rb-110 example code

2011-02-14T06:13:15+01:00

roboard wrote:
If you want to use PWM channel 15,

please change

roboard wrote:
// set PWM channel 0
if (RoBoIO.rcservo_SetServo(0,RoBoIO.RCSERVO_SERVO_DEFAULT_NOFB) == false)
{
Console.Write(RoBoIO.roboio_GetErrMsg());
return;
}

to

roboard wrote:
// set PWM channel 15
if (RoBoIO.rcservo_SetServo(15,RoBoIO.RCSERVO_SERVO_DEFAULT_NOFB) == false)
{
Console.Write(RoBoIO.roboio_GetErrMsg());
return;
}

and change

roboard wrote:
// initialize channel 0
if(RoBoIO.rcservo_Initialize(RoBoIO.RCSERVO_USECHANNEL0) == false)
{
Console.Write(RoBoIO.roboio_GetErrMsg());
return;
}

to

roboard wrote:
// initialize channel 15
if(RoBoIO.rcservo_Initialize(RoBoIO.RCSERVO_USECHANNEL15) == false)
{
Console.Write(RoBoIO.roboio_GetErrMsg());
return;
}

I`ve don already this stuff. Another questions, the servo only moves in one direction. If i put in the servo_position arry the values 1000,2000,1500 the servo moves only in one direction, isn`t is supposed to move backwards when it reaches 1500?

Statistics: Posted by hellu — Mon Feb 14, 2011 6:13 am

rb-110 example code

2011-02-14T01:53:55+01:00

If you want to use PWM channel 15,

please change

roboard wrote:
// set PWM channel 0
if (RoBoIO.rcservo_SetServo(0,RoBoIO.RCSERVO_SERVO_DEFAULT_NOFB) == false)
{
Console.Write(RoBoIO.roboio_GetErrMsg());
return;
}

roboard wrote:
// set PWM channel 15
if (RoBoIO.rcservo_SetServo(15,RoBoIO.RCSERVO_SERVO_DEFAULT_NOFB) == false)
{
Console.Write(RoBoIO.roboio_GetErrMsg());
return;
}

and change

roboard wrote:
// initialize channel 0
if(RoBoIO.rcservo_Initialize(RoBoIO.RCSERVO_USECHANNEL0) == false)
{
Console.Write(RoBoIO.roboio_GetErrMsg());
return;
}

roboard wrote:
// initialize channel 15
if(RoBoIO.rcservo_Initialize(RoBoIO.RCSERVO_USECHANNEL15) == false)
{
Console.Write(RoBoIO.roboio_GetErrMsg());
return;
}

Statistics: Posted by roboard — Mon Feb 14, 2011 1:53 am

rb-110 example code

2011-02-14T00:15:24+01:00

roboard wrote:
Hi, Spiked

there is a sample code for a non-feedback rc-servo.

the code uses the PWM channel 0 of RoBoard.

Please install the .NET Framework 2.0 before run it.

Code:
using System; using System.Collections.Generic; using System.Text; using RoBoIO_DotNet;//Include RoBoIO_DotNet.dll namespace example_sv { class example_sv { static void Main(string[] args) { uint [] servo_position = new uint [32]; uint [] nofb_home_position = new uint [32]; nofb_home_position[0] = 1000; servo_position[0] = 2000; // if use RB-100, call RoBoIO.roboio_SetRBVer(RoBoIO.RB_100); RoBoIO.roboio_SetRBVer(RoBoIO.RB_110); // set pwm channel 0 if (RoBoIO.rcservo_SetServo(0, RoBoIO.RCSERVO_SERVO_DEFAULT_NOFB) == false) { Console.Write(RoBoIO.roboio_GetErrMsg()); return; } Console.Write("\nInitialize RC-servo lib..."); // initialize channel 0 if(RoBoIO.rcservo_Initialize(RoBoIO.RCSERVO_USECHANNEL0) == false) { Console.Write(RoBoIO.roboio_GetErrMsg()); return; } Console.Write("success\n\n"); // play servo RoBoIO.rcservo_EnterPlayMode_NOFB(nofb_home_position); // move to the specified position by 1000ms (1 second) RoBoIO.rcservo_MoveTo(servo_position, 1000); Console.Write("completed\n"); RoBoIO.rcservo_Close(); return; } } }

I`ve tested the code above with the channel 15 of my board but the only problem is when i change the servo position arry with another value the servo moves the same, like nothing changed. I`m using a TowerPro non feedback servo. Am i missing something, i`ve tested out with PWM functions for the servo and the result is the same. Isn`t there a more explicit guide for servos in C#?

Best regards,Vlad

Statistics: Posted by hellu — Mon Feb 14, 2011 12:15 am

rb-110 example code

2011-01-31T14:51:05+01:00

its probably #2. the thing is so slow I was running the compile and link elsewhere.
I'm on to the Legos for now, I may come back to it later.

Spiked3 - http://spiked3.blogspot.com/

Statistics: Posted by Spiked3 — Mon Jan 31, 2011 2:51 pm

rb-110 example code

2011-01-31T14:07:42+01:00

Hi,

under WinXP, RoBoIO fails to initialize the "I/O library" only if it fails to initialize WinIO or it finds a wrong version of RoBoard.

If you get the "I/O library fails to ..." message, please ensure that

1. you login WinXP with Administrator, and

2. you don't run your RoBoIO application (with WinIO) on a network disk, and

3. you put winio.sys in a correct path (e.g. the directory of your RoBoIO application).

If you have correctly set up WinIO and RoBoIO application, then please also ensure that you set the version of RoBoard correctly. As mentioned in the sample code, if your RoBoard is RB-100, please change the line (in the sample code):

Code:: RoBoIO.roboio_SetRBVer(RoBoIO.RB_110);

into

Code:: RoBoIO.roboio_SetRBVer(RoBoIO.RB_100);

Statistics: Posted by roboard — Mon Jan 31, 2011 2:07 pm

rb-110 example code

2011-01-31T21:07:31+01:00

i'll have to admit, I dont understand how anyone could get that error message if the files are not there. I moved them out of the directory and got an expected dll not found error from .net long before any robio error could occur.

the logon I am using is a full administrator account. I also note significant differences between the two samples of code.

I am just not able to fight through this at the moment so im going back to lego's (in java) for a while, at least they move.

http://spiked3.blogspot.com/

Statistics: Posted by Spiked3 — Fri Jan 28, 2011 6:24 pm

rb-110 example code

2011-01-28T12:54:01+01:00

Spiked, Check out:

http://robosavvy.com/forum/viewtopic.php?t=6644&highlight=library+fails+initialize

Statistics: Posted by PaulL — Fri Jan 28, 2011 12:54 pm

rb-110 example code

2011-01-28T04:00:51+01:00

Spiked3 wrote:
that is not the error that would occur if they were not.

Please also ensure that you login WinXP with the Administrator account.

Statistics: Posted by roboard — Fri Jan 28, 2011 4:00 am