Materials: two regular fabric pieces length of wrist, one isolator fabric, two pieces conductive fabric, conductive thread, two buttons, regular thread and needle.
Sew a loop from the conductive thread to the edge of the regular fabric and attach to the end of the conductive fabric. Create two of these.
Cut holes in the isolator fabric and place between both pieces of fabric. Sew all three pieces together.
Sew the buttons on the opposite side of the bracelet. And there you have it! A bracelet sensor 🙂