Drawbridge · 2016. 10. 31. · Drawbridge GUARD AND PROTECT! How do you defend a castle? Pull up the drawbridge! Only lower it for those you know and trust. Use a motion …

DrawbridgeGUARD AND PROTECT! How do you defend a castle? Pull up the drawbridge! Only lower it for those you know and trust. Use a motion sensor to control when your bridge will be lowered.

Red 2x6Brick

Red 2x6Brick

Green Round Brick

Green Round Brick

Green Round Brick

Green Round Brick

Grey 8x16Brick

Step 1You will Need:

Yellow 2x6 Brick

Crown Gear Bushing #3 Axle Motor

Step 2You will Need:

Pay attention to the direct ion of the teeth on the Crown Gear!

Step 3You will Need:

Red 1x8with Holes

Red 1x8with Holes

Bushing BushingBushing Bushing Bushing Basic Gear #8 Axle

8#

Yellow 1x2 Brick

White 1x4 Plate

White 1x4 Plate

Yellow 1x2 Brick

Yellow 1x6 Brick

Yellow 1x6 Brick

Step 4You will Need:

Red 2x2Brick

Red 2x2Brick

White 2x6 Plate

Grey 1x2 with Peg

Grey 1x2 with Peg

Red 1x4 Brick

Red 1x2with Hole

Red 1x2with Hole

Grey 1x2with Cross

Hole

Grey 1x2with Cross

Hole

Step 5You will Need:

Red 2x4 Brick

Green Flat Tile Green Flat Tile

Step 6You will Need:

White 1x4 Plate

White 1x8Plate

White 1x8Plate

White 1x8Plate

White 1x8Plate

Red 1x16 Red 1x16

Step 7You will Need:

Grey 1x2with Cross

Hole

Grey 1x2with Cross

Hole

White 2x6Plate

White 2x6Plate

Green 2x4Plate

Green 2x4Plate

White 2x8Plate

White 2x8Plate

Step 8You will Need:

TopBottom

Wheel Wheel #8 Axle

Step 9You will Need:

Press Firmly !

Leave the wheels s l ightly loose!

Yellow 1x3Wedge

Yellow 1x3Wedge

Red T-Plate1x2

Red T-Plate1x2

Grey 1x2with Peg

Grey 1x2with Peg

Red 1x2Wedge

Red 1x2Wedge

Toothed Plate Toothed Plate

White 2x6Plate

Red 1x2Brick

Red 1x2Brick

Red 1x2Brick

Red 1x2Brick

Step 10You will Need:

Step 11You will Need:

Attach the Motion Sensor! !

Motion SensorYellow 2x3 Inverted Wedge

Step 12You will Need:

Hub

Plug the Motor and the Motion Sensor into the Hub!

Rubber Band Rubber Band

Step 13You will Need:

Your Drawbridge is Built!...Time to Program it!

Raise your Drawbridge! ! !

ProgrammingTest the mechanics of your robot with th is program.

Start with the Draw Bridge up, then c l ick PLAY to lower it .

Start StartTurn Motor That Way

Turn Motor This Way

Motor Power 5

Motor Power 5

Motor on for 4 seconds

Motor on for 4 seconds

Lower! Raise !

1 . M in imize these instruct ions and open the LEGO® WeDo® software.2 . Program your robot with the program above.3 . If you f in ish , open the instruct ions and cont inue to the extens ion act iv it ies !

Extension 1Now program the Motion Sensor ! Te l l the Drawbridge to Lower and

ra ise when it senses motion! Start with your bridge ra ised .

Extension 2Now add a Sound and Display ! D isp lay when your bridge ra ises

and lowers .

Extension 3

a.

b.

Now program the Sound Sensor! Program the Drawbridge to lower when it hears your command!

Record a welcome message us ing the Sound Block to p lay when the bridge is lowered!