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ultrasonic sensor

i just got an ultrasonic sensor with 4 pins of ench pin it has

1.VCC

2.Trig

3.Echo

4.GND ( already know )

 

what do they mean?

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o look at that it works now i did that :)

 

thanks!

 

Chris the Carpenter's picture

I am going to go out on a limb here and say that you never googled "Arduino <name of your sensor>".

You should have.