Interfacing to a Current Sensor

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johngeh
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Interfacing to a Current Sensor

Post by johngeh » Wed Sep 23, 2015 2:27 am

I have purchased several current sensors and I need to interface them to a BBB. An example is the 100A sensor:

http://www.seeedstudio.com/depot/Noninv ... p-547.html

The problem is that the sensors output a variable current (0 to 50mA) whereas the BBB wants a variable voltage (0 to 1.8V). Any suggestions for how to make this work?

I have tried to submit this to the technical support team at SeeedStudio but their stupid web page is broken. Every time I try to submit it, the page pops up an error saying that I need to fill in all of the fields even though all of them are filled out. I tired to submit it on the customer service page as well and when I click on the Submit button nothing happens. Very frustrating.

viswa
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Re: Interfacing to a Current Sensor

Post by viswa » Wed Sep 23, 2015 4:54 pm

Hello,

Please check the last three links provided at product page Documents section. These links explain how to interface a CT to Arduino (or to any othe MCU input). There is a simple schematic (R and C) to convert current output to voltage output.

Thanks and Warm Regards.

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