When you sew CodeBug and your GlowBugs together with conductive thread, this is how you will connect them. Attach GND on CodeBug to GND on the left side of the GlowBug, repeat this for PWR from CodeBug to the 5V on the left side of the GlowBug. Connect leg 3 on CodeBug to the DATA IN leg on the GlowBug. You can connect more GlowBugs to the chain by connecting the right side of the previous GlowBug to the left side of the next GlowBug, as shown in the picture below.