Current Sensor

Need a new type of sensor? Interfaced a sensor that you want to tell everyone about?
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Current Sensor

Postby pgp2012 » Tue Jun 05, 2012 3:40 pm

Hi guys, new to the forums here and I have a question about this sensor:

I'm hoping to measure what I believe is a square current wave from a handheld portable drill. The signal will be received by an Arduino Uno.

Do you guys think this will work? I'm worried what the sensor will output if the majority of the current wave is below a zero value (the sensor is calibrated to a sine wave), as the Arduino crashes when the signal is below zero.

Thanks much for all your help.

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Joined: Tue Sep 27, 2011 2:37 pm
Location: Calgary

Re: Current Sensor

Postby burley » Wed Jun 06, 2012 7:32 am

These current sensors are for AC, so if the drill is battery operated then this sensor would not be a good choice.

If the drill is powered by a cable however, this would work. The output of the 3502 is 0-5VDC which should interface with any of the analog inputs on the Arduino. Note that the sensor returns RMS current.
Brian Burley
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