Flickr: fbz_hack_a_day's Photostream

This is the finished backpack strap before it has been stitched shut.

This image shows where the wifi detector circuit and the squishy switch are hidden.

When stitching the backpack strap back together, the cables should all be on the upper side of the backpack strap for shoulder comfort.

This image shows the new black cables from the points where the LED's were de-soldered and the new white cable where the squishy switch is attached.

Here the foam with holes is sandwiched between the two sides of aluminum foil glued to brown packing paper.

This image shows the squishy switch with the two wires connected and electrically conductive paint applied.

This is the inside of the wifi detector.

fbz_hack_a_day's photostream