Control Lego NXT With Wiimote

Ever want to build your own RC vehicle? Now you can. Your in control of its design, and as simple to use a Legos, because it is Legos. All you need is a Lego NXT, a computer with a Bluetooth dongle, and control software


I am 17 years old.

You will need:
*standard NXT kit
*computer with bluetooth
*wiimote

This part is best explained visually. View pictures for guidance.

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Plug left cable into port b. The picture is wrong.

Plug the right cable into port c. The picture is wrong.

download glovepie from:
http://glovepie.org/glovepie_download.php

download the controller:
http://www.norgesgade14.dk/bluetoothremote.php


 After downloading extract the files.

use left and right keys until Bluetooth is centered.

Once you find the Bluetooth icon hit the orange button.

Use the right and left arrows to find On/Off

Select On if not already.

While in the Bluetooth menu find the visibility icon.

Select On if not already selected.

click on the orb or hit super on your keyboard.

Start the control panel.

double click the Bluetooth icon.

Select add device from the menu bar.

After clicking on add new device a window will open. Other devices than your brick may appear. Wait until your NXT brick is found to double click on it. My bricks name was Sean, so I clicked on it.

A window will open asking for the device's password.

Look at your brick. The default password is "1234." You can change the password if you want to. Once you know what password you want to use select the check mark.

Enter pairing password from NXT.

Click connect and windows will install the drivers needed.

Wait until all the drivers have been installed and the brick has been successfully paired to move on.

Go back to the Bluetooth window. Your brick should now appear there. Select add new device.

Make sure your Wii is off. Either hold down both the 1 and 2 buttons or hit sync on the back of the controller.

After clicking on add new device a window will open. Other devices than the wiimote may appear. Wait until your wiimote is found to double click on it.

For the password option. Select pair without password.

The wiimote should pair with your computer and install drivers.

Go to the Bluetooth menu. Right click on your brick, select properties, then settings. After loading you will see which COM port the brick is using.

Double click on the controllers icon.

Enter the com port of the brick. Then click start.

Click enable keyboard in lower right corner of the program.

Double click on the glovepie icon. 

Here is the program. Just copy and past

if var.run == FALSE then
var.run = TRUE
HidePie
var.hidden = TRUE
endif


if ((DoubleClicked(Wiimote.Home) and Wiimote.HasClassic == FALSE) or DoubleClicked(Home) or DoubleClicked(Wiimote.Classic.Home)) and (var.hidden == true) then
ShowPie
var.hidden = FALSE
elseif ((DoubleClicked(Wiimote.Home) and Wiimote.HasClassic == FALSE) or DoubleClicked(Home) or DoubleClicked(Wiimote.Classic.Home)) and (var.hidden == FALSE) then
HidePie
var.hidden = TRUE
endif


var.home = SingleClicked(Wiimote.Home)
If var.home and var.on then
var.on = FALSE
elseif var.home and var.on = FALSE then
var.on = TRUE
endif


key.u = wiimote.a
key.j = wiimote.b
key.t = wiimote.Plus
key.g = wiimote.minus
key.y = wiimote.right
key.h = wiimote.Left
var.err = 15               //edit to change intervals. (0 - 180) are possible values

if ((wiimote.roll > var.err) && (wiimote.pitch < -(var.err)))
key.w =false
key.d =false
key.s =false
key.a =false
key.e =true
key.c =false
key.z =false
key.q =false
else
key.e =false
endif

if ((wiimote.roll > var.err) && (wiimote.pitch > var.err))
key.w =false
key.d =false
key.s =false
key.a =false
key.e =false
key.c =true
key.z =false
key.q =false
else
key.c =false
endif

if ((wiimote.roll < -(var.err)) && (wiimote.pitch < -(var.err)))
key.w =false
key.d =false
key.s =false
key.a =false
key.e =false
key.c =false
key.z =false
key.q =true
else
key.q =false
endif

if ((wiimote.roll < -(var.err)) && (wiimote.pitch > var.err))
key.w =false
key.d =false
key.s =false
key.a =false
key.e =false
key.c =false
key.z =true
key.q =false
else
key.z =false
endif

if ((Abs(wiimote.roll) <= var.err) && (wiimote.pitch > var.err))
key.w =false
key.d =false
key.s =true
key.a =false
key.e =false
key.c =false
key.z =false
key.q =false
else
key.s = false
endif

if ((wiimote.roll > var.err) && (Abs(wiimote.pitch) <= var.err))
key.w =false
key.d =true
key.s =false
key.a =false
key.e =false
key.c =false
key.z =false
key.q =false
else
key.d = false
endif

if ((Abs(wiimote.roll) <= var.err) && (wiimote.pitch < -(var.err)))
key.w =true
key.d =false
key.s =false
key.a =false
key.e =false
key.c =false
key.z =false
key.q =false
else
key.w = false
endif

if ((wiimote.roll < -(var.err)) && (Abs(wiimote.pitch) <= var.err))
key.w =false
key.d =false
key.s =false
key.a =true
key.e =false
key.c =false
key.z =false
key.q =false
else
key.a = false
endif

if (((Abs(wiimote.roll) <= var.err) && (Abs(wiimote.pitch) <= var.err)) || ((Abs(wiimote.roll) <= var.err) && (Abs(wiimote.pitch) <= var.err)))
key.w =false
key.d =false
key.s =false
key.a =false
key.e =false
key.c =false
key.z =false
key.q =false
endif


Wiimote.Led1 = var.on
Wiimote.Led2 = true 
Wiimote.Led3 = var.on 
Wiimote.Led4 = true 


if Wiimote.Battery <= 10 and var.warned == FALSE then
Say "Low Battery"
var.warned = TRUE
endif
var.bat = Wiimote.Battery / 192 * 100
debug ='Battery= '+var.bat+'%' 

hold wiimote with IR camera facing away from you and level.

tilt wiimote down to go forward

tilt wiimote backward to go backward

tilt wiimote right to turn right

tilt wiimote left to turn left

tilt wiimote down and right to go forward to the right

tilt wiimote up and right to go backward to the right

tilt wiimote down and left to go forward to the left

tilt wiimote up and left to go backward to the left

plus button increases speed

minus button decreases speed

right button on gamepad increases spin speed

left button on gamepad decreases spin speed

a button increases turn ratio

b button decreases turn ratio

double click home button to reopen glove pie

Click run and enjoy.

I am 17 and if I can do, so can you.