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b"Hardware\\n\\nThis is simple - just some wheels geared down 1:3 to move the card in and out over the color sensor. The touch sensor senses whether the card is being pushed in. and I also had a touch sensor and motor for the door but that was only to prove that the card reader worked.\\n\\nProgram\\n\\nI programmed using ROBOTC. I wanted to re-teach myself ROBOTC and I really like it. I'm never back to NXT-G. ROBOTC is just easier once you learn it. I was having trouble having it read the card (and tell me the code) because it was too inaccurate - it would give me the wrong colors a lot so instead it only figures out if it is the correct card.\\nYou can download the code at my blog.\\n\\nMy Blog: http://Mindstormspodcast.wordpress.com\\n\\nGoogle Plus page: http://bit.ly/tendersby\\n\\nFacebook page: http://facebook.com/endersbyt"