In this tutorial, learn how to build an Infrared (IR) pen. This pen can be used with a Wiimote to create a multi-touch whiteboard. Buy all the parts mentioned in the parts list and then watch the assembly video.Parts List

• Prismacolor Double Ended Marker – 2.09
• Tactile Switch – 0.13
• Prototype Board – 1.99
• 15 Ohm Resistor – 0.10
• Break Away Male Headers – 1.60
• 2 pin Female Header – 0.46
• IR LED – 0.44
• Compression Spring – 3.49

To remove the sticker from the marker, watch this video.