HC-SR04 Ultrasonic sensor not returning the value. It reads zero always

Hello community,

Recent times all of our HC-SR04 sensors behaving very strange. Everything was working fine month ago. but now not. We tried all the examples we tried in the past too. But the sensor always reads a value of zero or some machine language text. I have attached the screen shot of code out put for your reference.


So, you did not bother to read the how to use this forum-please read sticky or you would know how to post code* and what information that we need to know in order to help.

*pictures of code is not the way to post code.