THE LAST BLOG-intro 2 rob.

The big thing about building the robot is really the best part because its were you can let out your inner 'child' and tinker with Lego's. Also the class and the chapters of homework teach how to effectivly build a robot to the point were a book of instructions dont need to be within arms reach incase you mess up the robot and are creating your own robots. The things that's are the most important in building the robot is the following

A) weight- and its division throughout the robot
note- look at the bottom/underside and see if the robot is sagging, if it is your wheels are too spread and the weight is to much (mostly in center and also not spread as well as possible).

B) gears - speed vs torque
If you set the gear ratio in an attempt at speed and go to fast, the small gear skips and sounds like clicking and wont really move

C) sensor placement
you need to leave room to put on sensors and know how to make the attatching section so it can be made almost anywere on the robot.

D)TRIAL AND ERROR

just download the program and run it, then use your results to alter the program by edititng values or checking out the section were the robot fails at, then after fixing it simply try again and repeat the process, after finishing test the highest motor power usable as an input into the program or other data to find just what the 'limit' is. The programmign requires simple blocks so remember, turns = motor block
forward = motor block OR move block (easier to use move block)


The sensors that are needed to attatch are the following

LIGHT
the sensor reads the light value by testing how much light returns to its sensor while it is contantly sendign out light, if it is a low value= dark high value = light
SOUND
records the volume or pitch of the soundwaves entering it and assignes them a value. usually used in form of detecting a clap or sudden noise at a certain threshhold
TOUCH
this sensor is just how it sounds it can tell when its touched and can be set to continue the program when either PRESSED, RELEASED or BOTH befor continuing.
ULTRASONIC
uses ultra sound to regester distances between objects ahead of it while not dirrectly needing to interact of touch them.