1 files changed, 5 insertions, 5 deletions
diff --git a/pm.h b/pm.h
index 4bfc10c..7ac2050 100644
--- a/pm.h
+++ b/pm.h
@@ -33,7 +33,7 @@ public:
     sensirion_i2c_init();
 
     while (sps30_probe() != 0) {
-      Serial.print("PM sensor probing failed\n");
+      Serial.println("! PM sensor probing failed");
       delay(500);
     }
 
@@ -41,13 +41,13 @@ public:
 
     ret = sps30_set_fan_auto_cleaning_interval_days(auto_clean_days);
     if (ret) {
-      Serial.print("PM setting the auto-clean interval error: ");
+      Serial.print("! PM setting the auto-clean interval error: ");
       Serial.println(ret);
     }
 
     ret = sps30_start_measurement();
     if (ret < 0) {
-      Serial.print("PM starting measurement error\n");
+      Serial.println("! PM starting measurement error");
     }
 
     awake=true;
@@ -75,7 +75,7 @@ public:
 
     ret = sps30_read_data_ready(&data_ready);
     if (ret < 0) {
-      Serial.print("PM reading data-ready flag error: ");
+      Serial.print("! PM reading data-ready flag error: ");
       Serial.println(ret);
       return false;
     } else if (!data_ready) {
@@ -92,7 +92,7 @@ public:
     ret = sps30_read_measurement(&(data->pm));
 
     if (ret <0) {
-      Serial.print("PM reading measurement error: ");
+      Serial.print("! PM reading measurement error: ");
       Serial.println(ret);
       return;
     }