The GREEN ROBOT
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GR05-Construction
Green Robot History
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Welcome to the my home page for what I call the Green Robot. This is a hobby of mine and I'll show how it's made, how it's programmed and constructed. This is a work in progress! For more information and online discussions, visit the forums, Link above.

I call this version of my remote robot, the Green Robot 5. Yes, that's because this is the 5th version thus far. Some of the current features of the current robot are listed below.

bulletThere is an IP camera and a 2.4Ghz real time video transmitter on the main module
bulletAll the seperate modules use a PIC microcontroller. My favorite.
bulletThe current upgraded robot has a  GPS module, electronic compass and accelerometer. All for navagation! 
bulletMy current programming project involves making the robot  autonomous.
bulletThere is also a PIR monitor. This allows remote monitoring of live animals which will trigger the sensor.
 

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.

 

Visit the forums to learn!