diff --git a/temp.c b/temp.c
index 4d3583f..3554201 100644
--- a/temp.c
+++ b/temp.c
@@ -297,7 +297,15 @@ void temp_sensor_tick() {
 		if (temp_sensors[i].heater < NUM_HEATERS) {
 			heater_tick(temp_sensors[i].heater, temp_sensors[i].temp_type, temp_sensors_runtime[i].last_read_temp, temp_sensors_runtime[i].target_temp);
 		}
+
+    if (DEBUG_PID && (debug_flags & DEBUG_PID))
+      sersendf_P(PSTR("DU temp: {%d %d %d.%d}"), i,
+                 temp_sensors_runtime[i].last_read_temp,
+                 temp_sensors_runtime[i].last_read_temp / 4,
+                 (temp_sensors_runtime[i].last_read_temp & 0x03) * 25);
 	}
+  if (DEBUG_PID && (debug_flags & DEBUG_PID))
+    sersendf_P(PSTR("\n"));
 }
 
 /// report whether all temp sensors are reading their target temperatures