Let's Make Robots!

colour

Guangzhou Science Center robot competition

As an advisor to the Guangzhou Science Center I occasionally have to go there and do some work. This time I was one of their judges for a local robot competition. There were 2 categories, non-programmable robots for younger students and programmable robots for older students. All teams received a sheet of 2mm thick heavy duty cardboard for their chassis and a kit from DAGU that included:

You can glow LED in 512000 colours using keyboard keys
I created this software using Processing software. If the selector is set in red, then the software sends values from 0 to 79, depending upon how much brightness is … Read more

Line Following Sensors

Hello everyone,

I am making a line following robot for a competition in Australia called "Robocup Junior". It involves following a line, also, taking shortucts indicated by a green square. At the suggestion of one of the friendly LMRians I invested in an IR Sensor board that can follow the line perfectly. The only problem I have been having is that white and green have the same readings (must be a problem with infra-RED and GREEN being different, or something:)

So I am creating this thread to see if anyone has had any experience with any light or colour (color) sensors.

Breadboard Jumper Wires Conspiring with Resistance?

Yup, that's:
no black
not so brown
red
orange
yellow
green
blue
violet
grey
white
still no black
brown, finally

Paints beautiful paintings whilst you watch
Using a
Picaxxo :- The Picasso style painting robot, using a Hacked Wii-Mote as tracking system picking up an infrared triangle mounted to the back of a picaxe based … Read more

Swiss Milka Cow "Colour Match System"

Swiss Milka Cow project takes on some colour.

Firstly :- New body made (old one to flimsy) and also replaced motors again .....now with 10,000 rpm racing set (its an easy mod to do on all the GM motor range - just have to be careful not to strip the gears.....) - also IR remote installed and an Arduino Mega as brain.

I have removed the old bi-colour eyes and replaced with high intensity RGB ones instead.

Also i have installed a RGB led into the lower Jaw bone and along side an LDR to detect the reflected colour.

Transforms your Bland Bot into a Mega Rainbow Hippie
 How to Colour Your PolyMorph...........  Its taken me around 8 months to find the solution to colouring PolyMorph. Then i struck it lucky... an Artist Friend … Read more