sending multiple variables to arduino

Projects Programming
1

hey guys :slight_smile: i would like to send 2 variables to my arduino nano.

//C# Project
variable 1 = On/Off
variable 2 = delay time

My arduino receives both variables in one string.
How can I separate the variables with the arduino using serialRead() ?

I just want to tell my arduino to blink. For example: led on, delay time 1000ms

Thank you in advance and sorry for my bad english :stuck_out_tongue:

Best regards, Pete

2

How can I separate the variables with the arduino using serialRead() ?

You can't separate them using Serial.read(). To do that, you need to collect the data into an array, and then use strtok or sscanf to extract the parts of interest.

3

ahh, can i use a separator like a "#" and then use split("#") in my arduino sketch ?

4

You can use a separator (like ,), but not split.

An example of using strtok:

char array[] = "one, two";

char *token = strtok(array, ",");
// token will be "one"

token = strtok(NULL,"\0"); // Use NULL to keep parsing the same array, and \0 to get the rest
// token will be "two"