Archive for category: Experiments

• Expanding the NXT with the PCF8574A

  Experiments, Sensors June 23, 2008 18:09 2 comments

  The Mindstorms NXT is great, no doubt.  However, sometimes you’d like to be able connect non-Lego items to it.  The NXT’s ability to talk I2C, the industry standard protocol for interfacing electronic devices makes this an easy to achieve goal.  Since this was my first time hooking up anything non-Lego [...]

   

• Determining Object Distance with Infrared

  Experiments, Robots, Sensors June 15, 2008 11:25 2 comments

  Next Saturday (21 July 2008 ) I am giving a presentation on the Parallax Propeller microcontroller and I thought it would be a nice idea to demo some things with it.  I have a Propeller Education Kit (PEK) and a Propeller Proto Board (PPB), kindly donated to me by Parallax.  [...]