light-changed band

There are the things we need ​Sew the battery and the light Cut metal band to four parts ​Sew the short medal band with light ​Sew the light with three bands, and each band connect to a specific light. Finally, sew the battery to the long medal band We finish the work

By: YangL1



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from Instructables: exploring - technology http://ift.tt/1GNM7Le