Servos don't work

[jpflorido]

Thanks Mike,

I'm using Visual Studio 2005 on Windows XP. The code is written in C#, but I also have tried with the GUI that the camera brought in Java and the servos didn't work either...

Here is the code I used:

// Set the COM1 serial port
SerialPort port = new SerialPort("COM1", 115200, Parity.None, 8, StopBits.One);

// Infinite ReadTime Out (default)
port.ReadBufferSize = 100000; // Size of the buffer: 100000 bytes
port.Open();
port.DiscardInBuffer(); // To empty the buffer


/* PART 1*/
port.Write("\r"); // Send command \r
while (((char)port.ReadByte()).Equals(':') == false) ;
// ':' received

/* PART 2*/
port.Write("SV 0 130\r"); // Send command SV to servo 0 at position 130
while (((char)port.ReadByte()).Equals(':') == false) ;
// ':' received


And for these two commands I received ACK....but the servos don't move!!!

Any tip...would be great.

Thanks again,
Javier.

[Mike Betts]

Javier,

I see nothing wrong in what you have done. In particular, I know that the GUI developed by CMU works just fine. In the absence of anything offbeat (like plugging in the servo backward), I think you may have a bad unit.

Regards,

Mike

[jpflorido]

Thanks Mike,

I've checked that there is no plugging in servo backward....so, as Mike says, it may be a bad unit...

Anyway, if somebody else had the same problem or knows any guess, would be great.

Thanks again,
regards,
Javier