Anyway to set speed in VB.Net programming

jw9800 · November 17, 2020, 3:35am

Hi, I’m using the VB.Net code and programming using the sample code. I see you can make the servo move but is there any way to set the speed so the servo goes at a slower rate than just speeding there? I see you can do it in Mastero control center.

dmilkie · November 17, 2020, 2:13pm

In the “Usc.dll” class there is “setSpeed(Byte servo, UInt16 value)”. Does that work for you? You can find that in this github repo:

jw9800 · November 17, 2020, 5:32pm

Any examples on how you would do this? I don’t see any on that site.

dmilkie · November 17, 2020, 6:00pm

I was able to find some by searching “setSpeed” : https://github.com/pololu/pololu-usb-sdk/search?q=usc.setSpeed(

This looks promising:

github.com

pololu/pololu-usb-sdk/blob/f7deff797c32b1cff15b00daa9583d4bc66249c5/Maestro/UscCmd/Program.cs#L188


    try

    {

        servo = byte.Parse(parts[0]);

        speed = ushort.Parse(parts[1]);

    }

    catch(FormatException)

    {

        opts.error();

    }

    Console.Write("Setting speed of servo "+servo+" to "+speed+"...");

    usc.setSpeed(servo, speed);

    Console.WriteLine("");

}

else if (opts["accel"] != null)

{

    string[] parts = opts["accel"].Split(',');

    if(parts.Length != 2)

        opts.error("Wrong number of commas in the argument to accel.");

    byte servo=0;

    byte acceleration=0;

    try

jw9800 · November 28, 2020, 3:22am

Sorry, I tried to get this to work. I am using Visual Basic and this is in C. I tried using one of the online converters to change it to VB but it didn’t run at all. If you have any VB samples that would be really hepfull.

Thanks

AmandaS · November 30, 2020, 10:16pm

Hello.

You can just add device.setSpeed(channel, speed) before the device.setTarget(channel, target) line in the Pololu USB SDK’s MaestroEasyExampleVb example. If you do not want to use the .NET framework, you can use the Maestro’s virtual USB COM port instead. You can find more information under the “Serial Interface” section in the Maestro Servo Controller User’s Guide.

- Amanda

jw9800 · December 3, 2020, 10:02pm

That is EXACTLY what I needed. Thank You so much.