4 replies to this topic

[henslecd]

Hello, I hope I am asking the right questions so bear with me.

 

I am trying to figure out what serial port the Netduino Plus 2 uses when attached via USB.  I have looked in Device Manager as well as used USBDeview.  Neither show a port. With Arduino it automatically detects the COM port.   Also how do you set or detect output port? Currently I have my D3 connected to my motor controller. Thanks for any help you can provide.  

[Chris Walker]

Hi henslecd, Netduino does not use a USB CDC connection (virtual serial port) to communicate with your PC. It utilizes a dedicated USB communication channel. That means that all of the digital and analog pins are available for use in your application. Chris

[henslecd]

OK that sounds great, but I am having a problem following Dimension Engineering sample app then.  Their Sabertooth Motor controller example instantiates with [color=#2b91af;]Sabertooth[/color] ST = [color=#0000FF;]new[/color] [color=#2b91af;]Sabertooth[/color]([color=#a31515;]"COM2"[/color],9600);  In the example, it specifically states:

          [color=#008000;]// For Netduino, the connections to make are:[/color]
[color=#008000;]//  Netduino D3 -> Sabertooth S1[/color]
[color=#008000;]//  Netduino GND -> Sabertooth 0V[/color]
[color=#008000;]//  Netduino 5V -> Sabertooth 5V (OPTIONAL, if you want the Sabertooth to power the Netduino)[/color]

How do I know what to set the port as? 

[ShVerni]

Hello,

 

If you look here:

 

http://netduino.com/...plus2/specs.htm

 

you'll see UART 1, UART 2, etc... with RX and TX. These refer to COM1 receive and transmit, COM2 receive and transmit, and so on. In short:

 

COM1 RX-TX: Pins 0-1,

COM2 RX-TX: Pins 2-3,

COM3 RX-TX: Pins 7-8,

COM4 RX-TX: SDA-SCL

 

I hope that helps!

[henslecd]

Thanks. I am using COM2 and it still isn't working.  I have opened a ticket with Dimension Engineering.  Thanks.