CO2 sensor: auto-calibrate command

ampel-firmware/co2_sensor.cpp

@@ -14,7 +14,7 @@ namespace config {
 #else
   const float temperature_offset = -3.0;  // [K] Temperature measured by sensor is usually at least 3K too high.
 #endif
-  const bool auto_calibrate_sensor = AUTO_CALIBRATE_SENSOR; // [true / false]
+  bool auto_calibrate_sensor = AUTO_CALIBRATE_SENSOR; // [true / false]
 }
 
 namespace sensor {
@@ -78,6 +78,10 @@ namespace sensor {
         " 600 (Starts calibration process, to given ppm)");
     sensor_console::defineIntCommand("calibrate!", calibrateSensorRightNow,
         " 600 (Calibrates right now, to given ppm)");
+    sensor_console::defineIntCommand("calibrate!", calibrateSensorRightNow,
+        " 600 (Calibrates right now, to given ppm)");
+    sensor_console::defineIntCommand("auto_calibrate", setAutoCalibration, " 0/1 (Disables/enables autocalibration)");
+
     sensor_console::defineCommand("reset", []() {
       ESP.restart();
     }, " (Restarts the sensor)");
@@ -211,6 +215,13 @@ namespace sensor {
     Serial.println(co2);
   }
 
+  void setAutoCalibration(int32_t autoCalibration) {
+    config::auto_calibrate_sensor = autoCalibration;
+    scd30.setAutoSelfCalibration(autoCalibration);
+    Serial.print(F("Setting auto-calibration to : "));
+    Serial.println(autoCalibration ? F("On.") : F("Off."));
+  }
+
   void setTimer(int32_t timestep) {
     if (timestep >= 2 && timestep <= 1800) {
       Serial.print(F("Setting Measurement Interval to : "));

ampel-firmware/co2_sensor.h

@@ -12,7 +12,7 @@
 
 namespace config {
   extern uint16_t measurement_timestep; // [s] Value between 2 and 1800 (range for SCD30 sensor)
-  extern const bool auto_calibrate_sensor; // [true / false]
+  extern bool auto_calibrate_sensor; // [true / false]
   extern uint16_t co2_calibration_level; // [ppm]
   extern const float temperature_offset; // [K] Sign isn't relevant.
 }
@@ -32,5 +32,6 @@ namespace sensor {
   void setTimer(int32_t timestep);
   void calibrateSensorToSpecificPPM(int32_t calibrationLevel);
   void calibrateSensorRightNow(int32_t calibrationLevel);
+  void setAutoCalibration(int32_t autoCalibration);
 }
 #endif