Parallax Compass Project

Archive
1

Can anyone tell me where to locate the project done with the Parallax compass and the FEZ Domino? I have tried to look at each tinyclr web page, but I am either overlooking it or in the wrong place.

The FEZ and the new math library are fantastic.!!

Thanks.
bdrew7 :):slight_smile:

2

You can place it at the projects page.

(link removed)

Good luck!

3

Are you looking for someone who has completed the code to talk to it already? Or are you looking to post a compass based project? I has because I plan on coding for the HMC6352 you can get from parallax i just haven’t gotten to that point.

4

Is this what you guys are looking for? (link removed)

5

Well cool that saves me time :>

6

Thanks everyone. This will save alot of my time also! :slight_smile:

7

Hey bdrew - let me know how the compass project works out for you.

That was my first project I uploaded to the project site.
I plan on using it with some other software I am writing now for robot control via WiFi.

Regards,
Tony

8

Thanks for the code. I have ordered the compasses from Parallax. Any thoughts on calibration? I will be working on calibration, when I get my compasses.

Thanks.
Bernard

9

from previous experience with it make sure you calibrate with all electronics you will be running on it. In the last build i used mine in motor noise was a issue i had to mount it away from the chassis. The calibration routine should be simple to code you send a command then run through the turning in circle twice in 10 seconds i think. In the long run i had it 8" away from the motors and had to write a delay in the reading. that was with the basic stamp and propeller so the delay may not be needed with FEZ.

10

Well, I think the device was pre-calibrated at the factory.

I didn’t go through calibration on mine as I tested it with another compass for comparison and it was right on the money.

But, let me know how your’s goes. I have the RP-5 robot base and drove it around with the compass sending data. With and without the motors running I got the same reading.

Right now I am controlling my robot base with a WiFly device and my own software. I use TeraTerm to send commands (f55 - Forward 55%, r40 - Right Turn 40%, etc). It works great controlling it from my WiFi network and PC. I am in the process of writing a function (h125 - turn to a heading of 123 deg) or whatever heading that is entered.

-Tony