ESP32 sends data at same place

ABG · January 15, 2024, 4:46pm

ABG:

void viewAbsentStudents() {
  String absentInfo = ""; // String to store absent student information


  // Iterate through students to check attendance
  for (int i = 0; i < sizeof(students) / sizeof(students[0]); i++) {
    bool isPresent = false;
    for (int j = 0; j < finger.templateCount; j++) {
      getFingerprintIDez();
      if (finger.fingerID == i + 1) {
        isPresent = true;
        break;
      }
    }
    if (!isPresent) {
     // lcd.setCursor(0, i + 1);
      Serial.println(students[i].name);
      
      Serial.println(students[i].id);
      Serial.println("Absent");

      // Collect absent student information
      absentInfo += students[i].name;
      absentInfo +=",";   // comma between name and ID
      absentInfo += students[i].id;
      absentInfo +="\n";  // end of line
      
    }
  }

  // Send absent student information to MIT over Bluetooth
  SerialBT.print(absentInfo);

Here are two changes that should deliver a Comma Separated Values (CSV) table.