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I have an NXT but I don’t know how to make it detect colors, all it does is say “wait”. My set includes a light sensor but I heard some YouTube videos say there was a lego “color” sensor. Does LEGO sell this? Can some one tell me how to get it please?

1

Lego has made colour sensors for various robotics themes, including Boost, EV3, and NXT. NXT is pretty old so you'll need to head to a 3rd party website like Bricklink to buy one.

4

The Original Mindstorms NXT only came with the NXT Light Sensor. The NXT Light Sensor cannot detect colors, so this is most likely what you have. You can currently purchase the NXT Color Sensor from Bricklink.com for under $30.

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