Formatting

ampel-firmware/co2_sensor.cpp

@@ -85,9 +85,9 @@ namespace sensor {
     Serial.print(F("S8 - Firmware : "));
     Serial.println(s8.firm_version);
     s8.sensor_id = sensor_S8->get_sensor_ID();
-    Serial.print("S8 - ID : 0x");
+    Serial.print(F("S8 - ID : 0x"));
     printIntToHex(s8.sensor_id, 4);
-    Serial.println("");
+    Serial.println();
 
     //TODO: Auto-calibration on/off?