Search found 16 matches

It should have said Pin_B4. The project has been completed. Here is the final code we used utilizing the port b interrupts. The project page with videos is here: http://www.ece.gatech.edu/academic/cou ...

Thanks for your help. We decided to use PortB Interrupts instead, and were successfully able to count the number of pulses, and display our miles/hour. I don't know why our Timer1 counter would not wo ...

The pulses change whenever a magnet polarity is switched. We didn't have a constant pulse going, so the screenshots are from a positive polarity magnet, then the next screenshot is the signal when the ...

My results are at the link below. is this enough information to help me? Images are included.

http://dl.dropbox.com/u/10133862/Sensor%20Readings.docx

1. What's the frequency of the pulses coming from the sensor ?

I can answer this tomorrow

2. What are the voltage levels (high and low) of the pulses, as measured
with an oscilloscope ?

I ca ...

I connected everything, and I am getting an accurate signal (high and low sine wave). However, my code recognizing the pulse changes. Is there something wrong with my code? The timer0 counts elapsed t ...

Sounds good. That is how I had it connected. Just need to add the pull up resistor. Thanks. I will try this out when I get back to the lab.

www.tinyurl.com/gtsavseniordesign --> GA Tech Senior D ...

Also, when I connect the sensor the the oscilloscope, does this mean the high signal will effectively be closer to 5V?

sounds great. Thanks. Is it still ok to power the sensor by +12V?

Ok, so I will connect the power pin of the sensor to the power supply, and the signal pin to a 1K ohm resistor, and the resistor to the timer1 input. is this correct? (along with the ground connection ...

And I do have the Sensor connected to ground as well

I had 12V from a voltage generator supplied to it. As far as a pull up resistor, what kind of resister should I use?

The datasheet for the sensor is here --> http://www.google.com/url?sa=D&q=http://www.electro-sensors.com/documents/906_907_ES116_RevI.pdf&usg=AFQjCNHikRDIIraYcyjtwq73r8uzjDCdxw

The Hall Sensor I am using utilizes 12V of external input power. The signal wire is then connected to the Timer input pin (RC0). I connected the signal pin to RA4 (Timer0 input) and it successfully in ...

I did this, and it was not receiving any values. I am confused. Do the RC1 and RC0 pins need to be tied together? I saw this somewhere recently. I know Timer1 works as I tried it as the main timer.