Sending one digit variable serially

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Leon Ellis
Leon Ellis 2021 年 10 月 9 日
Good day, I'm trying to send the variable x through serial to my arduino. The only problem is, when i monitor my serialport, the value of x doesn't appear as it should and I need it to. This is my very simplified code:
clear;
x=6;
x=x+3;
x;
s=serialport("COM1",9600);
pause(1);
write(s,x,"char");
In my serial monitor, it only creates a bunch of spaces and I've tried all the different types of variable types, i.e "uint", "int", "single" etc availeble. However, as you can see the varaible x should be 9 and I want to send 9. When I use single, I get values on the ASCII table, however subtracting the right amount to achieve the '9' doesn't seem to work. Any help would be much appreciated!

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R2020a

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