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Topic: can i use the following signal with arduino analog input directly? (Read 306 times) previous topic - next topic

dany151

kindly,this is my acquired signal from AD623 inst. amp sensor circuit...i want to use this signal to switching 2 relays ON/OFF ... im using arduino mega 2560




retrolefty

Well if the center horizontal line is at 0vdc then the arduino analog input pin will not be able to measure or detect that negative going pulse. In fact applying negative voltages to an arduino pin can damage it.

Lefty

James C4S

Does the triangle on the right represent ground or the trigger point? 

Why is there a "disconnect" near the far left graticule?

Your trigger point is set to -4V suggesting the entire signal swings negative.  Is that the case?

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