GPS map of back park - cleaned up data

GPS map of back park - raw data, caused by loosing GPS lock 1/2 way through.

Low view of the PC assembly.

Testing the Servo - Servo controller LED glows brightly!

Testing the Servo

Testing a mini-ssc data dump between two computers

I had a problem, where every image I added would be displayed full size!Turned out that even though the ImageMagic 'convert' program could convert JPEGs, the image program actually seems to use the GD JPEG resize function.  I hadn't compiled in the JPEG libraries into PHP.  Turns out I had to download the latest JPEG source code, compile it, and then re-compile PHP with the --with-jpeg-dir=/usr/local/bin/ switch.  I then had to redo some of the pictures, so it could add in their thumbnails. 

This was initially used in my GPS testing project, mapping the park behind the house.

I have purchased a 2D Honeywell 3100 Digital Compass.  This uses a TTL RS-232 voltage level, so since I need to connect it to a PC, I will need to make up a converter curcuit using a MAX232CPE chip.  I have one here, but I think it's stuffed (from a previous experiment some years ago).

I will pick up two more in Perth next time I am up there.  I will also purchase the batteries, Hall Effect Sensor and battery charger. So much to do, and so little time :-)

These tests where done with a 512MB compact flash card, and a Seagate Medalist 10232 Hard Drive, alternately connected to a VIA EPIA-PD 6000 motherboard with 256MB or RAM.

Power applied, but not switched on:  107mA

At switch on with HD:  2000mA+ (blew the Digital Multimeter 2A fuse!) 

Running 'du /' with a HD: 1000 - 1200mA

compiling DHCP from source, 75% user activity, 0% idle with HD: 1250mA

command prompt, with nothing happening with HD: 1000mA

command prompt, with nothing happening with CF: 900mA