SEN0001 URM37 V5.0 Often Return 0cm Distance Measure

Hello, i'm trying to use URM37 V5.0 sensor interfacing with ESP32C3 Super Mini With the tutorial example PWM trigger mode
2024-11-28 16:28:38
Stefanus Ade.Setiawan
I follow the example from https://wiki.dfrobot.com/URM37_V5.0_Ultrasonic_Sensor_SKU_SEN0001_#target_4

2024-11-28 16:28:06
Stefanus Ade.Setiawan
Here is my serial monitor output:
Distance=0cm
Distance=106cm
Distance=106cm
Distance=0cm
Distance=106cm
Distance=0cm
Distance=106cm
Distance=0cm
Distance=0cm
Distance=0cm
Distance=0cm
Distance=0cm
Distance=106cm
Distance=0cm
