Ultrasonic sensor HC-SR04

Other Hardware Robotics
21

The rangefinder has a microcontroller on it, driving the "echo" output on the rangefinder.
Are you comfortable with having your Arduino trying to drive that microcontroller's echo output low?

22

AWOL:
The rangefinder has a microcontroller on it, driving the "echo" output on the rangefinder.
Are you comfortable with having your Arduino trying to drive that microcontroller's echo output low?

Yes. It is driving the echo pin low or else i would still have got 0cm at the output.
Just curious, why will driving the pin of the range finder low be difficult for the arduino?

23

Hello Folks

I am currently working on the project where the amplitude of the trigger can be changed and the amplitude of the echo has to be measured as well. Is it possible with the library NewPing or do I have to do something else. It would be really great if you can provide me with lines and commands in order to detect that.

Thanks

24

praneetamitabh:
Hello Folks

I am currently working on the project where the amplitude of the trigger can be changed and the amplitude of the echo has to be measured as well. Is it possible with the library NewPing or do I have to do something else. It would be really great if you can provide me with lines and commands in order to detect that.

Thanks

I can't imagine under what circumstances you'd want to vary the amplitude of the trigger, and the HC-SR04 (the subject of the thread you hijacked) provides no information about the amplitude of the return.