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Introduction

4. Materials

      1. GoPiGo3, with batteries
      2. A wifi-enabled laptop or computer
      3. A black line following sensor

For the track:

        1. 5x straight & 4x corner printable line follower template sheets (download)
        2. black marker pen for added black contrast (if necessary)
        3. transparent tape for sticking sheets together 

For the stock picker’s basket:

        1. container options: a cardboard gift box, a plastic takeaway tub or lego
        2. attachment options: velcro, cable ties, pipe-cleaners, string, lego rods/axles

For stock items: 

        1. A container of small items (e.g. marbles, lego bricks)

For optional experiments:

        1. black and white paper or card
        2. a blanket, sweater, or newspaper
        3. a glass oven dish (larger than 24cm x 16cm)
        4. a clear plastic tub or lid (larger than 24cm x 16cm)
        5. aluminum foil