Ideal for people who want to develop custom sensors.

A new single infrared detector with I²C communication is now available:

An article is now available with building instructions for a basic RCX robot which uses the cball sensor. Look out soon for a sample program for this robot.

The cball infrared ball sensor is available for only AUD$49.99.  

• 8 x infrared photodetectors arranged in a 180 degree semi-circle
• No calibration required, automatically reads background light levels on startup
• Analog and digital output modes, DIP switch selectable
• Connects to LEGO® RCX in analog mode or can interface digitally either via TTL serial or I²C (LEGO® NXT)
• Provides signal for either no roboball can be seen or strongest photodetector signal
• Digital output provides access to all sensor data including raw readings and background readings
• Four leds for indication of strongest photodetector
• Low input voltage 6-12v and low current <20mA
• Mounting holes are aligned to holes in Technic LEGO® blocks
  
• Includes 2 nylon bolts, nuts and spacers

 Check out the details about the cball sensor in the Product Information page. Programming examples for RobotC, NXC and NQC are available.

cball Infrared Ball Sensor

LEGO® NXT cables are now also available.

As of this week we have been doing final testing with the cball sensor. The sensor will support Analog, Serial and I²C for communication. If you would like to be emailed when this sensor is available please email us at This e-mail address is being protected from spam bots, you need JavaScript enabled to view it .

Some new parts have also been added to the site including some DIP switches, LEDs and capacitors.