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1  Using Arduino / Sensors / Re: Hall Sensor to Find Speed on: June 17, 2011, 12:31:07 pm
pulseIn() would not work for this since your trying to measure peak to peak and not from a high to low or low to high since if you think about it what if a wheel stops on a magnet, then it would have inaccurate readings. Measuring peak to peak will get the actual correct time.
Sorry it took so long to post back.

For a more detailed information, the link is as followed --->
2  Using Arduino / Sensors / Re: Hall Sensor to Find Speed on: February 03, 2011, 06:11:32 pm
could you explain in more detail?
3  Using Arduino / Sensors / Hall Sensor to Find Speed on: January 31, 2011, 10:24:20 pm
Hi everyone, I have started a site up to upload my projects. My first project is measuring speed of a wheel using a hall sensor. To view what I have so far, please visit and navigate to electronics > projects > speed sensor. So far I have implemented one version of the code but I will be posting another version up as soon as I tweak some things out. The version I have now measures revolution over x time while the newer version will measure x revolution over a given time period. This newer version which I will try to have up also consists of a op-amp design so feel free to look around, explore and learn!  smiley-grin
4  Forum 2005-2010 (read only) / Interfacing / Speed Sensor Design with A Hall Sensor on: January 15, 2011, 12:00:25 pm
Hi, I created a speed sensor design using a hall sensor, magnet and an arduino. I've been looking around the forums for answers but came up half handed with answers. For all those who has some trouble, I have some code up and instructions to getting a speed sensor running. The code so far has some hiccups and is kind of messy but for now it will run the basis through a serial monitor smiley
5  Forum 2005-2010 (read only) / Interfacing / Re: Vehicle Speed Sensor on: January 15, 2011, 11:59:42 am
Did you make any progress on this so far. I like the idea of reading voltage since it seems as if Arduino would better interpret this. Then I would create a calibration using the analog to digital to find the digital voltage coming out of the thing and calibrate it. Kinda hard to explain but message me and I will be gladly to help since I have some code up!  smiley-wink
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