Magnetic Compass

[Mark Bresler]

Hi,
has anyone used the Hitachi® HM55B Compass Module?
I bought the Parrallax Module # 29123 which has a voltage regulator and 4 line I/O. The website shows software examples for the Stamp controllers. Before I sit down and write a driver, I wanted to check whether anyone had done it before in either IsoMax or Forth.
Thanks Mark

Contact info below:
Web Site: www.parallax.com
Forums: forums.parallax.com
Sales: sales@parallax.com
Technical: support@parallax.com
Office: (916) 624-8333
Fax: (916) 624-8003
Sales: (888) 512-1024
Tech Support: (888) 997-8267
Hitachi® HM55B Compass Module (#29123)

[RMDumse]

Well, it is basically a modified SPI interface. I see they bit bang their code. Which were you wanting, an SPI one or a bit bang on any I/O pin version.

[Mark Bresler]

I was looking over my Forth code and found my driver for the National Semiconductor 5450. This is a Serial input LED Driver that can drive 34 LEDs ( I think it is my favorite chip, I use it to run LEDs, optoisolators, and reed relays (with a transistor)). For past projects, I have bit banged and SPI inputs, my preference would be a SPI interface.

Thanks,
Mark