How to send a different types of data using serial port

[MuhammadAshry]

i need to send an array of angles with some litters as a group to the serial port which function that can do this ? as considerd that the visa wrrite accepts only string input  .

[Blokk]

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@MuhammadAshry wrote:

i need to send an array of angles with some litters as a group to the serial port which function that can do this ? as considerd that the visa wrrite accepts only string input  .

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I hope you want to send letters and not litters 🙂 Anyway, as you have noted, you can only send string using VISA Write. Same for VISA Read, you get string. The solution is very simple: use the string-number conversion functions (Number/String conversion subpalette). For example you have an "angle" numerical value, you need to convert this into a string, and send it. On the receiver side, you can convert the string back to number if needed:

[MuhammadAshry]

it works only with an "number" not an array of numbers aslo i need to send something like that "WO " Before the array and then the array . is "Build Text" function works ?

[Blokk]

1. Attach your VI, and NOT a png file.
2. Do not use that Build Text Express VI, but proper string functions
3. Please write an example what exactly you need to send at each iteration of the While loop. In the screenshot you have a number not an array.
4. That two "Error/No Error" case structures are not needed inside the other Case structures you can just delete them...What do you do in the Error cases there? Attach your VI...

[Bob_Schor]

Is there a specific format for your string?  If you know the format and the types of inputs (for example, a string, a float, and an integer), you can use "Format into String" which has a specified format (for example, %2s %4.1f %4d means "two character string, space, 4 character number format xx.x, space, 4 digit integer").  The function will help you build the Format String (right-click the function, type ^H and read the Help text).

Bob Schor

[MuhammadAshry]

Thanks for ur effort 
actually i have 6 servo motors that i need to send their angles to arduino serial port with that format "WO Xangle1 YAngle2 Zangle3" and so on for the 6 motors .

[crossrulz]

A FOR loop might help you to build up all of the strings and then send them all at once after the loop is complete.  Of course, this assumes you have an array for the data of the servos.