diff --git a/hmmd-sensor-waveshare.ino b/hmmd-sensor-waveshare.ino
index b1ecc98..eb30018 100644
--- a/hmmd-sensor-waveshare.ino
+++ b/hmmd-sensor-waveshare.ino
@@ -5,9 +5,8 @@
 
 // Normal mode command
 #define COMMAND "FDFCFBFA0800120000006400000004030201"
-#define PRESENCE_DISTANCE 120
+#define PRESENCE_DISTANCE 140
 #define DELAY_STATUS_CHECK 1000 // delay (in ms) between two checks of the presence
-#define POWER_DELAY 20000 // delay (in ms) until turning off the screen
 
 // Zigbee
 #define OCCUPANCY_SENSOR_ENDPOINT_NUMBER 1
@@ -112,10 +111,10 @@ void readAndProcessSensorLines() {
         isPresent = true;
         bool res = sendZigbeeOnOffCommand(isPresent);
         Serial.println("Motion detected, turning screen light on");
-      } else if (!currentStatus && isPresent && (millis() - lastMotionDetected >= POWER_DELAY)) {
+      } else if (!currentStatus && isPresent) {
         isPresent = false;
         bool res = sendZigbeeOnOffCommand(isPresent);
-        Serial.printf("No motion detected for %d ms, turning light off.\n", POWER_DELAY);
+        Serial.printf("No motion detected, turning light off.\n");
       }
     }
   }