Build robots and contraptions! Experiment with mechatronics using
Arduino and LEGO Mindstorms NXT!
Use the Bricktronics Shield Kit to connect up to two LEGO NXT motors
and four LEGO NXT
sensors to an Arduino.
* Supports up to two LEGO NXT motors, and reading their encoders
* Supports up to four simultaneous LEGO NXT sensors
* Supports LEGO NXT touch sensors on all four sensor ports
* Supports LEGO NXT 2.0 color sensor on two ports
* Supports LEGO NXT ultrasonic sensor on two ports
* Uses NXT cables
* Two TIP120 transistors help you switch larger loads
* Tested compatible with Uno and Duemilanove, but will work on many
other Arduino compatibles (contact us for details)
Solder the kit, download the easy-to-use Arduino library, check out
the examples, and start building!
SEE IT IN ACTION!
READING A COLOR SENSOR WHEN A BUTTON IS PRESSED
The kit contains a Bricktronics Shield printed circuit board, six
custom injection-molded NXT-compatible sockets, five long jumpers, two
female four-pin headers, two 0.1 uF ceramic capacitors, two TIP120s, a
DPDT switch, a 6mm push button, two 100 k resistors, two 1 k
resistors, a 100 uF electrolytic capacitor, a 10 uF electrolytic
capactitor, two 1N4001 diodes, a MCP23017 I2C I/O expander, a L293D
H-Bridge chip, a 28-pin DIP socket, and headers.
The Bricktronics Shield can be purchased in two kit
configurations-with stacking headers, or with male headers only.
Stacking headers are useful when you want to combine the Bricktronics
Shield with non-NXT sensors and motors. You can insert wires into the
stacking headers for a temporary connection.
The male headers cost a little less-but we include an extra set of
holes next to the header holes in order to make it easy to add things
to later, even if you solder in the male headers.
WHAT YOU NEED
The Bricktronics Shield Kit connects an Arduino to LEGO NXT motors and
sensors. Arduino, motors, sensors and NXT cables are not included. The
Mindstorms NXT 2.0 set includes three motors, two touch sensors, one
color sensor, one ultrasonic sensor, and a variety of NXT cables.
Motors take more power than can be supplied by a USB cable. You
typically want about 600 mA per motor, but up to 1000 mA peak per
motor. Our 9V 2A wall adapter works great, but any 2.1mm 9V adapter
with at least 1.3A should work. If you want to power your creations on
the go, our 6 AA battery pack works well.
If you don't buy the pre-assembled version, the Bricktronics Shield
Kit is a through-hole kit. It requires basic soldering skill. At a
minimum, you'll need a soldering iron, solder, and a diagonal cutters.
Clear instructions  are available at the Bricktronics Shield
It usually takes under an hour to build, but it may take more or less
time depending upon your experience with soldering.
OPEN SOURCE HARDWARE
This kit is open source hardware. We make the hardware source files
like the schematic and the pcb files available for anyone to use as
long as they credit us and release any modifications as open source
hardware. The schematic and pcb files are available on the
Bricktronics Shield download page. 
A portion of the profits of this kit go to John Baichtal, an author of
the Make: Lego and Arduino Projects book.
Wayne and Layne, LLC and our products are not connected to or endorsed
by the LEGO Group. LEGO, Mindstorms, and NXT are trademarks of the