sensorTask.ino

sensorTask.ino

void sensorTask(void *parameter)
{
  int delay;
  vTaskDelay(10 * 1000 / portTICK_PERIOD_MS);
  while (1)
  {
    sdcard = SD.open(filenamestring, FILE_WRITE);
    digitalWrite(LED_BUILTIN, HIGH);
    if (sdcard && rtcOk) {
      sdcard.print(datestring);
      sdcard.print(",");
      sdcard.print(timestring);
      sdcard.print(",");
      sdcard.print(temperatureC);
      sdcard.println();
      sdcard.flush();
      sdcard.close();
      Serial.println("Write done...");
      delay = 10;
    } else {
      delay = 1;
      Serial.println("Write failed.");
    }
    vTaskDelay(20 / portTICK_PERIOD_MS);
    digitalWrite(LED_BUILTIN, LOW);

    vTaskDelay(delay * 1000 / portTICK_PERIOD_MS);
  }
  vTaskDelete( NULL );
}

void setup()
{
  Serial.begin(115200);
  pinMode(LED_BUILTIN, OUTPUT);
  Serial.print("Initializing SD card...");
  RtcSetup();
  /* initialize SD library with SPI pins */
  if (!SD.begin(13, 15, 2, 14)) {         //T1:13,15,2,14  T2: 23,5,19,18 M5：4,23,19,18 uint8_t csPin, int8_t mosi, int8_t miso, int8_t sck
    Serial.println("initialization failed!");
    return;
  }

  Serial.println("initialization done.");
  xTaskCreate(sensorTask, "sensorTask", 1024, NULL, 1, NULL);
}