Ultrasound HY-SRF05 same result

Other Hardware Sensors
1

Hello,

I bought ultrasound distance sensor HY-SRF05 and it works fine.

I bought another two and there is a problem. The reply puls is always 45 uS long, does not matter if sensor is pointed to wall and to empty space.

If I switch sensors and use the first one, it works as it should. Markings on all 3 sensors are the same, but only one works.

Did you encounter this problem, is there some solution for it?

2

Ask the seller if you can exchange defective sensors.