Timbuktuchronicles writes –

“It starts off with the basics of how IR sensors work, Chris has gone to the trouble of taking some IR photos to show what a typical room looks like in infrared. He spends some time talking about how to determine the beam spread of IR LEDs and what it means to the placement and number of sensors your robot needs. “ [via] – Link.


  • Bumper logic – Link.
  • Robotics @ MAKE – Link.