Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: Admin on March 09, 2007, 04:26:09 PM

Title: digital compass for ADC
Post by: Admin on March 09, 2007, 04:26:09 PM
Does anyone know where I can get a tiny (smaller the better) digital compass that can give an analog value output for an ADC on a microcontroller?

If it outputted a PWM, I could run that into a capacitor for an output analog voltage . . .

the best I can find is this but its been around for years and its still a little too big for me:
http://www.acroname.com/robotics/parts/R117-COMPASS.html

oh and cost doesnt matter ;D
Title: Re: digital compass for ADC
Post by: hgordon on March 09, 2007, 05:07:43 PM
http://www.dinsmoresensors.com/1525spec.htm
http://www.dinsmoresensors.com/inforeq.htm
Title: Re: digital compass for ADC
Post by: JonHylands on March 09, 2007, 08:21:16 PM
Admin,

This one is I2C, but it certainly fits the tiny criteria:

http://www.sparkfun.com/commerce/product_info.php?products_id=7915

This one is true analog:

http://www.sparkfun.com/commerce/product_info.php?products_id=761

Nice thing with that one - if it works for you, you can build your own board - the 2-axis chip itself is cheap and tiny...

http://www.sparkfun.com/commerce/product_info.php?products_id=708

- Jon