One of the more interesting facets of GPS is that, at least from the receiver’s point-of-view, it’s a fairly passive system. All of the information beamed down from the satellites is out in the ether, ...

DIY Map GPS (US$4.99, universal) is a GPS navigation solution for those who like to create or annotate their own maps. While it can use the open source Open Street Maps to download mapping data with ...

Kevin Zeits sent in his diy Nikon d200 gps cable and hot shoe gps mount. Nikon sells it for $150, but has a 3 to 6 month eta. Ok, it’s really just a ttl to rs-232 converter with proprietary connectors ...

Finally, my PSP may actually become useful! This is a “simple” way to connect a GPS adapter to your PSP. It costs around $130, so it is a bit cheaper than most other GPS units. Here is what you need: ...

In our weekly How-To this week we showed you how we hacked an old digital camera to take a photo automatically as fast as it can until the memory card fills up or the battery dies using a $1.49 LM555 ...