As I develop the different modules required to make the robot, I
will update the specification link. In this section, I'll list the electronic
specifications along with the manufacture part numbers. You can also find a
picture and brief description of the module below.

The Latest Modules.
The pc board pictured below is a quad dc motor
driver module or dual stepper motor driver module. I do not currently use a
stepper motor to drive the robot, but have programmed the module to accept
stepper motor commands. This might come in handy in the future.
I call this little module the GR-MT-001. I currently
use an L6225 dual full bridge driver to control the robot. The DC motors I
currently use only draw about 400mA max load. This module will supply 6 times
this amount of power. The module is small, 2.5 in square.

The transmitter module is pictured below. It's a
rough package, but it works. I call this the GR05-TX-001 REMOTE TRANSMITTER AND DISPLAY MODULE
This little module has 2 joystick controllers, I use them for camera pan and
tilt and motor control. A nice little Radiotronix transceiver, good up to 1/4
mile. The uOLED display is made by 4d. It also has a uSD card, so you can log
data. I use it to log GPS data, accelerometer and electronic compass data.
The development platform pictured below was made from a hobby box I had laying
around. The camera transmits to a 2.4Ghz Rx and displayed on the 2.5"
monitor. The current battery used to drive this circuit is a little 800mAh LiIon
pack. This will allow only 3 hours of operation. Again
for complete specifications, visit the specifications page.

Pictured below, is the 5th version I call the GR05-RX-001.
The motor driver board is much smaller than the older versions. This particular
configuration uses 4 DC motor for the drive train. This allows the robot to
rotate on the center axis. It will rotate in place. The current motor speed I
use is 200rpm. Pretty slow, but high torque is delivered to the drive train.
The electronic compass and accelerometer are not
installed in this picture.
