Serial connection Optimizations

[siamakhaz]

1. First thing, define debug mode for debugging serial communication. In actual usage, you will send only the necessary data.

   const bool debug=true;
   if (debug)  Serial.println("Some Message");

2. Remember that each character you add will introduce a delay to the system. Be mindful of adding characters in serial communication; avoid adding extra characters to keep the system running smoothly.

3. Use flash memory space instead of RAM for fixed messages. For example:

   SerialUSB.print(F("constant string"));

4. Accumulate data in a local buffer and send it in larger chunks. Here’s an example:

   const int data = 230;
   const float fdata = 203.5;
   const char sdata[] = "Hello";
   char buffer[100]; // Buffer to hold the formatted string
   int index = 0;
   for (int i = 0; i < 100; i++) {
    index += snprintf(buffer + index, sizeof(buffer) - index, "Motopya! data %d float %.2f String %s index %d", data, fdata, sdata, i);
    if (index >= sizeof(buffer) - 50) {  // Ensure there's enough space for the remaining data
      Serial.println(buffer);
      index = 0;
    }
   }

5. Minimize Serial Flushes. Use SerialUSB.flush() sparingly, as it can block program execution.