Arduino Transponder interface FSUIPC

[vinman1000]

I have a transponder that sends digits from arduino via serial which FSUIPC reads. I can parse the serial and see the digits (i.e.:1200) but have a problem controlling the setting.

If I look for a specific string (like 1200) I can then send something specific in ipc.control, like 0x1200 .

For example, this works:

function Arduino_Data(Arduino_Com_Port, datastring, length)

	if (string.find(datastring, "1200")) then  
		ipc.control(65715,0x1200)
	end
end

 

However, doing it this way I would have to look for all variations ox 0000 thru 7777 and write each ipc.control manually.

So I am trying this:

function Arduino_Data(Arduino_Com_Port, datastring, length)
	if (string.find(datastring, "%d")) then
		xpdrcode=tonumber(datastring)
		ipc.control(65715,xpdrcode)
	end
end

The problem is ipc.control requires 0x. I seem to be unable to pass it a variable successfully

I have even tried this to no avail.

function Arduino_Data(Arduino_Com_Port, datastring, length)

	if (string.find(datastring, "%d")) then
		xpdrcode=tonumber(datastring)
		xpdrcodehex=string.format("%x",xpdrcode)
		ipc.control(65715,xpdrcodehex)
	end
end

 

Can anyone provide direction on how to get the proper format for the ipc.control parameter? 

This is my first foray into LUA and I have very limited programming knowledge but it is fun. 

Thanks,

Vin

Edited January 22, 2021 by vinman1000

[John Dowson]

You are mixing things up a bit. If your argument string is a hex number (without the leading '0x', try this:

function Arduino_Data(Arduino_Com_Port, datastring, length)

	if (string.find(datastring, "%d")) then
		xpdrcode=tonumber("0x"..datastring)
		ipc.control(65715,xpdrcode)
	end
end

John

[vinman1000]

I will give it a go and report back. Thanks!

 

[vinman1000]

Works like a charm!

I had to look up the two dots thing but now I know. Thanks again!