Speed ​​of serial communication

[khalil_dz]

Hi all
1-I am looking for a function or method faster than the function (Serial.readStringUntil ('\ r') or Serial.parseInt ()).
I think two functions took a long time(+6ms) for receiver (4 int) same time.
The program I used

Code: [Select all] [Expand/Collapse]

1. int m_1,m_2,m_3,m_4; //// m=[1000 2000]
2. String inString = "";
3. void setup() {
4.    Serial.begin(115200);                                                
5. }
6.  void loop() {
7.       if(Serial.available()>0){
8.       for(int i = 0; i < 4;i++){
9.     String rread = Serial.readStringUntil(',');
10.        switch(i){
11.         case 0 :
12.                    m_1 = rread.toInt();
13.         break;
14.         case 1 :
15.                     m_2 = rread.toInt();
16.         break;
17.         case 2 :
18.                     m_3 = rread.toInt();
19.         break;
20.         case 3 :
21.                     m_4 = rread.toInt();
22.         break;
23.             }
24.     }
25. ////print for verification////
26.                    Serial.println(m_1);
27.                    Serial.println(m_2);
28.                    Serial.println(m_3);
29.                    Serial.println(m_4);
30.     }
31.  }

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2-how to use the serial read function to receive (4 int) same time.