Close up of the test circuitry.  The PICAXE is the one with the gold 'X' at the bottom of the breadboard.  Note the lite LED.

The other circuitry is left over from past testing.

Testing setup

Wow, I am a convert of using PICAXE chips They are so easy to use!

The PICAXE-28X CPU chip arrived yesterday from Altronics.  When I get some time over the weekend, I will have a go at programming it :-)

It only runs at 4MHz at the moment.  Later I will see if I can overclock it to 16MHz.  I am interested in seeing how fast I can do Anologue-to-Digital (AD) converstions, as I have some other projects in mind as well, that could use it if I can get running at around 120 conversions per second.

PICAXE-28X CPU Chip 4MHz

This shows how all the parts are connected together.

It's called "on the job training".  While updating the Subversion repository with the latest files, I managed to switch two directories around.  Oops.  Had to export one of them, revert back, and add it back in.  The beauty of a Content Management System like Subversion is that nothing is really lost :-)

Anyway, it's all up too date with the latest files etc.  Mainly my MyGPS, servo and gps code files and some PICAXE pdf's. 

Might have to order a PICAXE-28X tomorrow!

Arrived back from Perth late Friday afternoon, after a fun filled 3 days with Ross, doing all the holiday things.

Like visiting electronic and hobby stores as well as Battery wholesalers.  I picked up a 12V 28Ahr SLA Battery to run the Servo and Motor, and a 7AHr SLA Battery to run the electronics.  I also picked up some other batteries (7AHr and 4Hr), to repair some old UPS's.

We also found a "$6.00 All you can eat" Indian restaurant.  We ate way too much!

SLA 28AH Battery - for the Propulsion Motor

I might have gone a bit over board on this one.  The dimensions are:

175mm H

163mm W

123mm D

Weight:  ~10.5Kg 

SLA 7.2AH Battery - for the computer and electronics

Weight: ~ 2.5Kg