AVR-Chat

That was my point - to determine the origin of the interrupt signal. 


Jim Wagner 

----- Original Message -----
From: "David VanHorn" <microbrix@gmail.com> 
To: AVR-Chat@yahoogroups.com 
Sent: Thursday, October 11, 2012 8:26:06 AM 
Subject: Re: [AVR-Chat] noise problem 






On Wed, Oct 10, 2012 at 2:59 PM, Jim Wagner < wagnejam99@comcast.net > wrote: 
> What happens if you disconnect the output of your sensor from the MCU board. Then, look at the ultrasonic output with your scope. Is the pulse there or not there? It may be that the problem is entirely in the sensor! 

It is entirely possible that the motor is radiating ultrasonic noise 
that is being picked up by the sensor. 



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