I am trying to build a coloured lines following robot, and I would like to know what kind of sensors do I use for my robot to differentiate and detect several different coloured lines?

  • 1
    What hardware/software are you using (NXT, EV3, etc..)?
    – Ambo100
    Dec 8, 2013 at 20:20
  • [ObGrammarJoke] Why does the bot have to be coloured?
    – gev
    Jan 8, 2014 at 8:44
  • 1
    @gev Ba-dum Tish! Jan 21, 2014 at 10:02

1 Answer 1


If you are using the EV3 Sensors you should use the EV3 Color Sensor which can detect 8 colors (colorless, black, blue, green, yellow, red, white and brown). If you are using the NXT I would recommend the HiTechnic Color Sensor or HiTechnic Color Sensor V2... I hope I could help.

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