First Commit

libraries/Adafruit_SCD30/examples/sensor_tuning/sensor_tuning.ino

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+// Demo of the available settings for the SCD30
+#include <Adafruit_SCD30.h>
+
+Adafruit_SCD30  scd30;
+
+void setup(void) {
+  Serial.begin(115200);
+  while (!Serial) delay(10);     // will pause Zero, Leonardo, etc until serial console opens
+
+  Serial.println("Adafruit SCD30 Sensor adjustment test!");
+
+  // Try to initialize!
+  if (!scd30.begin()) {
+    Serial.println("Failed to find SCD30 chip");
+    while (1) { delay(10); }
+  }
+  Serial.println("SCD30 Found!");
+
+  /***
+   * The code below will report the current settings for each of the
+   * settings that can be changed. To see how they work, uncomment the setting
+   * code above a status message and adjust the value
+   *
+   * **Note:** Since Automatic self calibration and forcing recalibration with
+   * a reference value overwrite each other, you should only set one or the other
+  ***/
+
+
+  /*** Adjust the rate at which measurements are taken, from 2-1800 seconds */
+  // if (!scd30.setMeasurementInterval(5)) {
+  //   Serial.println("Failed to set measurement interval");
+  //   while(1){ delay(10);}
+  // }
+  Serial.print("Measurement interval: ");
+  Serial.print(scd30.getMeasurementInterval());
+  Serial.println(" seconds");
+
+
+  /*** Restart continuous measurement with a pressure offset from 700 to 1400 millibar.
+   * Giving no argument or setting the offset to 0 will disable offset correction
+   */
+  // if (!scd30.startContinuousMeasurement(15)){
+  //   Serial.println("Failed to set ambient pressure offset");
+  //   while(1){ delay(10);}
+  // }
+  Serial.print("Ambient pressure offset: ");
+  Serial.print(scd30.getAmbientPressureOffset());
+  Serial.println(" mBar");
+
+
+  /*** Set an altitude offset in meters above sea level.
+   * Offset value stored in non-volatile memory of SCD30.
+   * Setting an altitude offset will override any pressure offset.
+   */
+  // if (!scd30.setAltitudeOffset(110)){
+  //   Serial.println("Failed to set altitude offset");
+  //   while(1){ delay(10);}
+  // }
+  Serial.print("Altitude offset: ");
+  Serial.print(scd30.getAltitudeOffset());
+  Serial.println(" meters");
+
+
+  /*** Set a temperature offset in hundredths of a degree celcius.
+   * Offset value stored in non-volatile memory of SCD30.
+   */
+  // if (!scd30.setTemperatureOffset(1984)){ // 19.84 degrees celcius
+  //   Serial.println("Failed to set temperature offset");
+  //   while(1){ delay(10);}
+  // }
+  Serial.print("Temperature offset: ");
+  Serial.print((float)scd30.getTemperatureOffset()/100.0);
+  Serial.println(" degrees C");
+
+
+  /*** Force the sensor to recalibrate with the given reference value
+   * from 400-2000 ppm. Writing a recalibration reference will overwrite
+   * any previous self calibration values.
+   * Reference value stored in non-volatile memory of SCD30.
+   */
+  // if (!scd30.forceRecalibrationWithReference(400)){
+  //   Serial.println("Failed to force recalibration with reference");
+  //   while(1) { delay(10); }
+  // }
+  Serial.print("Forced Recalibration reference: ");
+  Serial.print(scd30.getForcedCalibrationReference());
+  Serial.println(" ppm");
+
+
+  /*** Enable or disable automatic self calibration (ASC).
+   * Parameter stored in non-volatile memory of SCD30.
+   * Enabling self calibration will override any previously set
+   * forced calibration value.
+   * ASC needs continuous operation with at least 1 hour
+   * 400ppm CO2 concentration daily.
+   */
+  // if (!scd30.selfCalibrationEnabled(true)){
+  //   Serial.println("Failed to enable or disable self calibration");
+  //   while(1) { delay(10); }
+  // }
+  if (scd30.selfCalibrationEnabled()) {
+    Serial.print("Self calibration enabled");
+  } else {
+    Serial.print("Self calibration disabled");
+  }
+
+  Serial.println("\n\n");
+}
+
+void loop() {
+  if (scd30.dataReady()) {
+    
+    if (!scd30.read()){ 
+      Serial.println("Error reading sensor data"); 
+      return; 
+    }
+
+    Serial.print("Temperature: ");
+    Serial.print(scd30.temperature);
+    Serial.println(" degrees C");
+    
+    Serial.print("Relative Humidity: ");
+    Serial.print(scd30.relative_humidity);
+    Serial.println(" %");
+    
+    Serial.print("CO2: ");
+    Serial.print(scd30.CO2, 3);
+    Serial.println(" ppm");
+    Serial.println("");
+  }
+
+  delay(100);
+}