Hi! Our names are Chris and Ernesto. Our second Lego project was a robotic arm. We had to build a robotic arm that picked up blocks and sorted them into the bin. When we got the arm to sort the blocks we added a color sensor that would sort all the colors into the correct bin. We ran into major difficulties trying to get the sensor to work. We spent an extra half an hour just checking our procedures. We tried and tried and tried, but no luck. Finally Mr. St. Clair helped us and we got the robotic arm to sort the blocks by their colors.
Below is a picture of the Lego project and the procedures.
to place.distant
pick.from.chute
hand.close
talkto "motora
setleft
on
waituntil [angle5 < -60 ]
off
Hand.open
end
to place.local
pick.from.chute
hand.close
talkto "motora
setleft
on
waituntil [angle5 < -49 ]
off
hand.open
end
to pick.from.chute
talkto "motora
setright
on
waituntil [angle5 > 0]
off
end
to hand.open
talkto "motorb
setright
onfor 2.5
end
to hand.close
talkto "motorb
setleft
onfor 5
end
to place.all
place.local
place.distant
place.local
end
to place.by.color
pick.from.chute
hand.close
talkto "motora
setleft
on
waituntil [angle5 = -25]
off check.color
end
to check.color
if light6 >= 38 [red]
if light6 <= 38 [blue]
end
to blue
talkto "motora
setleft
on
waituntil [angle5 = -52]
off
hand.open
end
to red
talkto "motora
setleft
on
waituntil [angle5 = -61]
off
hand.open
end
to go
repeat 3[place.by.color]
end