Serial Object & USB Servo Controller

[MuddyMole]

I'm attempting to use the Serial object to use a USB Servo Controller with MMF2, but so far without any success.

The relevant instructions provided by the manufacturer are here:
http://www.pololu.com/docs/0J40/5.c
http://www.pololu.com/docs/0J40/5.e

I've tried both protocols, but I'm mainly interested in the simpler "Mini SSC protocol".

This is some simple code that I've tried:

+ Start of frame
-> Binary: Resize binary to 3 bytes
-> Serial: Open COM 7 with a baud rate of 9600 // I got COM7 from device manager

+ Serial: COM port is open
+ Only one action when event loops
-> Button: Enable // The button is disabled by default

+ Button clicked
-> Binary: Set byte 0 to 255 // 255 is the command byte for "SetTarget"
-> Binary: Set byte 1 to 5 // I want to set servo #5
-> Binary: Set byte 2 to 127 // 127 = return the servo to its centre
-> Serial: Send string$( "Binary object", 0, 3)

It opens the port alright, but nothing happens when I click the button (it should set servo #5 to its centre position).
I don't get any error messages from MMF2 or the Serial object.

If anyone has any suggestions or thoughts on what I might be doing wrong, I'd be most appreciative

[Ls2]

MuddyMole,

If you use microcontroller, you can make it very easy using Serial Object. To do it, send a little string or charactere (like 'A') and ready it in microcontroller.

[Danny]

MM - Just out of curiosity, have you tried layering the Button clicked event to one action per condition?

IE:
+Button Clicked
-> Binary: Set byte 0 to 255
+Button Clicked
-> Binary: Set byte 1 to 5
+Button Clicked
-> Binary: Set byte 2 to 127
+Button Clicked
-> Serial: Send string$("Binary Object",0,3)

The reason why I ask is; there are, albeit 1/1000 chance, but there are some oddities sometimes when piling all the actions into one condition, with hardly anybody using the Serial and Binary object together this could be one of those oddities.