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Showing results 1 to 4 of 4 @ 0.01 seconds. Search: Posts Made By: kwantam
Forum: Nokia N900 2009-11-03, 19:01
Replies: 125
Views: 52,830
Posted By kwantam
Re: DIY digital compass: electronics experts needed!

It's a 4mm x 4mm x 0.7mm rectangular prism. It has no leads, just 16 metal pads on the bottom. Google for "16 qfn" and you'll find images of one.
Forum: Nokia N900 2009-11-03, 16:48
Replies: 125
Views: 52,830
Posted By kwantam
Re: DIY digital compass: electronics experts needed!

This is a good point. Some research on whether this device is obtainable is clearly in order.



All it takes is an I2C interface and you're in business. You can find the AK8973 datasheet on...
Forum: Nokia N900 2009-10-23, 04:10
Replies: 135
Views: 37,266
Posted By kwantam
Re: Is the FM transmitter any good in real life?

As far as I can tell from looking at the drivers, the transmitter is Si4713.

https://www.silabs.com/Support%20Documents/TechnicalDocs/Si4712-13_short.pdf

The part is capable of transmitting...
Forum: Nokia N900 2009-09-30, 20:49
Replies: 125
Views: 52,830
Posted By kwantam
Re: DIY digital compass: electronics experts needed!

I don't know if there is continuing interest in this topic, but I can contribute a few bits of information and opinions.

NXP has a decent application note on building an electronic compass:...
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