programming a HC-SR04 sensor with a myDAQ

[Greenernick]

Hello,

I am trying to build a circuit to measure distance using a HC-SR04 ultrasonic sensor and a myDAQ without and Arduino provided by my university. However, we are struggling to set up the DAQ to produce the signal and receive the signal. wondering is you shred some light on this?

[ikaiser]

Hello Greenernick,

Where exactly are you struggling? Setting up the hardware? Drivers? LabVIEW coding?

Had you seen Getting Started with NI-DAQmx?

Also, when you have LabVIEW installed and NI-DAQmx afterwards, there are lots of examples available: LabVIEW » Help » Find Examples » Browse in Task structure » Hardware Input and Output » DAQmx.

[JensG69]

Have a look at my reply in this thread:

https://forums.ni.com/t5/LabVIEW/Connecting-HC-SR04-to-NI-USB-6001-and-LabVIEW/m-p/3905639/highlight...

You'll find two links to possible solutions. You have to combine parts of these solutions.

I'm not familiar with the myDAQ device, but it seems that it can measure the pulse width of a digitial signal. That would give you the distance. But it does not seem to be possible to create a pulse train on the second counter of the myDAQ so you have to find another solution there.

Regards, Jens