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Topic: ultrasonic sensor (Read 797 times) previous topic - next topic


I am a newbies, this is my first project with micro controller. I did search this forum to find the solution to my problem but couldn't find it.

I have an ultrasonic sensor, that I intended to use it in measuring the water level of a river. The sensor give an analog output 4~20mA. What I understand from example, Arduino board read Voltage not Ampere. So could anyone help me, Thanks


Put in a load resistor,and measure the voltage across it.
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.
I speak for myself, not Arduino.

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