Here’s a cool GPS serial hack using a Compact GPS from older PDAs.
Below is a description of how to modify the compactGPS to work with a standard serial port. This mod will allow you to use the device using your PDA serial port, a PC serial port, and a PDA/GPS car kit.
This device is a compact flash adapter for GPS If you are a walker or hiker, you should look at this device. It is very accurate, and has a very low data acquisition time.
This worked fantastically for me for 2 years, until I discovered TomTom. I purchased tomtom and installed it. This also worked fantastically. I could plug in the receiver, and get a location of my car! The only problem I had was that I didn’t have enough memory in the PDA to accomodate large maps. I was stuck with very small maps. The problem is that the GPS receiver uses the Compact flash port… The same port I need for a memory card upgrade
This became very annoying, and I went to work…