Using C# Class Library into sketch

Projects Programming
1

Hey guys,

I've received my Arduino Uno and started a C# project to communicate with it. I'm using Arduino IDE plugin for visual studio, then I can have every projects into the same visual studio solution..

I managed to send and receive some data thanks to exemples but now I want Arduino sketch to use some object of my C# class library. I don't find the way to declare and use the objects into sketch program.

What I have for now:

BoxControl_Common Assembly:

namespace BoxControl_Common.Service.Arduino
{
    public enum ArduinoServiceRequest
    {
        SayHello = 1,
        SayHelloYou = 2
    }

    public class ArduinoServiceResponse
    {
        public static string BadRequest = "BAD REQUEST";
        public static string Hello = "HELLO";
        public static string HelloYou = "HELLO YOU!";

        //....
    }
}

Arduino Sketch:

const int BAUD_RATE = 9600;
const int DELAY = 100;

void setup()
{
	Serial.begin(BAUD_RATE);
}

void loop()
{
	if (Serial.available() > 0)
	{
		switch (Serial.parseInt())
		{
			case ArduinoServiceRequest.SayHello:
				sayHello();
				break;
			case ArduinoServiceRequest.SayHelloYou:
				sayHelloYou();
				break;
			default:
				Serial.println(ArduinoServiceResponse.BadRequest);
				break;
		}
		delay(DELAY);
	}
}

void sayHello()
{
	Serial.println(ArduinoServiceResponse.Hello);
}

void sayHelloYou()
{
	Serial.println(ArduinoServiceResponse.HelloYou);
}

Any tips to declare and use ArduinoServiceRequest and ArduinoServiceResponse in my Arduino sketch?

2

but now I want Arduino sketch to use some object of my C# class library

Not going to happen. The Arduino is programmed in C++, not C#.

3

It doesn't support .net class library? I was able to reference the c# library in the arduino sketch project, but can't find any way to use the classes in the sketch (since i'm too noob in c++ stuff).

Maybe the opposite is possible? Make a c++ library which is referenced in my c# projects?

Any way to share classes between arduino sketch and c# projects?

4

Any way to share classes between arduino sketch and c# projects?

No. They are programmed in different languages.

5

Ok :frowning: Its not really important, I'm just trying to figure out the possibilities. It'd have been great to be able to have kind of communication contract between c# application and arduino sketch.

Since yesterday I'm looking for solutions, I always think it will work but well.. it doesn't. I'm too noobish with C++ to figure out why. That's frustrating!

Could you explain to me why this topic can't help?

https://support.microsoft.com/en-us/kb/828736

It looks like it's what I'm trying to achieve!

6

-N4w4k-:
Could you explain to me why this topic can't help?

On the standard Arduino there are no DLLs at all, no dynamic linking,
it is even uncommon to use non-dynamic libraries.
Libraries in Arduino context more or less compare to 'sourcecode for library-members'
that get compiled and linked on demand.

7

Alright, I got it :slight_smile:

Thanks guys

8

In general, in order to communicate data between very different environments (C# on x86 windows vs C++ on AVR Arduino, for example), you need to carefully define some sort of "extern data representation" that is a least-common-denominator that can be easily interpreted by both. This is the sort of thing that makes computer networking such an "interesting" field; you want your IBM Mainframe 4 8-bit EBCDIC characters in a 32bit word fixed record text files to show up on your DEC 5 7-bit ASCII characters in a 36bit word newline-delimited text files are actually look right... (ok, that particular example might be a bit dated...)

See the Internet RFCs and their carefully defined packet formats for some good examples.
See the CCITT OSI protocol specs for some bad examples :slight_smile: