Hi! We are G.A.T.E. students. For our project we built a wheelchair. Here is how we built it. First we put it together. Then we had to take off the bottom and change the gears because we had to put on bigger gears because the small ones wouldn't hit the other gears. Each wheel has its own motor. So we had to figure out that left, on motor A was forward, but right, on motor B was forward. Backwards was the other way around. To turn left both motors had to be set left. To turn right both motors had to be set right. We had to tell the motors and joystick which way to turn. Now we can use the joystick to turn the wheelchair because all the commands are all ready in the computer. Now the wheelchair is like a fragile, remote control chair. When you control it the slightest movement will make it go or turn. It is much harder though to get it to stop. It was so hard in fact, that we had to make a stop and a start button on the computer. Also sometimes it would start to go in circles which meant you had to reset it. Then it would stop going in circles. The most fun part was driving it. We had a really long cord so it was able to go far. Everyone thought it was cool.
Below is a picture and the programming.
TO FORWARD
TALKTO "MOTORA
SETLEFT
TALKTO "MOTORB
SETRIGHT
TALKTO [MOTORA MOTORB]
ONFOR 10
END
TO BACKWARD
TALKTO "MOTORA
SETRIGHT
TALKTO "MOTORB
SETLEFT
TALKTO [MOTORA MOTORB]
ONFOR 10
END
TO LEFT
TALKTO "MOTORA
SETLEFT
TALKTO "MOTORB
SETLEFT
TALKTO [MOTORA MOTORB]
ONFOR 10
END
TO RIGHT
TALKTO "MOTORA
SETRIGHT
TALKTO "MOTORB
SETRIGHT
TALKTO [MOTORA MOTORB]
ONFOR 10
END
TO JOYSTICK
IF ANGLE5 > 1 [FORWARD]
IF ANGLE5 < -1 [BACKWARD]
IF ANGLE6 > 1 [RIGHT]
IF ANGLE6 < -1 [LEFT]
END
TO WHEELCHAIR
FOREVER [JOYSTICK]
END
