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Conductive Textiles

Conductive Textiles. Where Electronics Meet Textiles Workshop with Lynne Bruning and Troy Robert Nachtigall Sponsored by Spark Fun and PlugandWear. Versione 3.0 - January 2010. Different Materials have different Conductivity. Conductor?. NON- CONDUCTOR. CONDUCTOR. INSULATORS. SEMI

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Conductive Textiles

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  1. Conductive Textiles • Where Electronics Meet Textiles • Workshop with • Lynne Bruning and • Troy Robert Nachtigall • Sponsored by • Spark Fun and PlugandWear Versione 3.0 - January 2010

  2. Different Materials have different Conductivity

  3. Conductor? NON- CONDUCTOR CONDUCTOR INSULATORS SEMI CONDUCTOR SUPER CONDUCTOR

  4. Conductive Yarns

  5. Filament, Spuncoated, and Ply Yarns

  6. MAking Condutive Thread

  7. Mixing Conductive and non-conductive Fibers Current/conductivity in thread depends upon three major factors: 1.Conductive Material Used2.% of Conductive Fibers 3.Longitudinal Configuration & Horizontal Configuration

  8. Conductive Fibers - metals – copper, silver, stainless steel, brass, Monel (Nickel) - metallized fibers - polyamide/silver- carbon

  9. Fiber Horizontal Configurations Natural Dog Bone Triorbial Circular Segmented Hollow Core

  10. Fiber Longitudinal Configurations • Straight • Twisted • Coiled • Crimped

  11. All conductors have resistance • Wearable electronics have more resistance because they are part non condutor. • We can create a variable resistor (or Potentiometer) by attaching a jewelry closure.

  12. Let’s Try it

  13. Let’s Try it

  14. Electricity in simple knitted fabrics

  15. Pressure sensitive fabric • Characteristics • Activation force 3.6 Kg per 50 mm diameter • More then 1.000.000 cycles • For a 15 cm x 20 cm switch resistance when pressed: around 200 Ohm, open circuit when non pressed

  16. Pressure sensitive fabricsInnovative aspects • No need of further production steps • Low cost • Transpiring • Semi-transparent • Flexible • Different activating pressures • Matrix switches • Large area switches (50 cm x 50 cm) • Skin compatible materials

  17. State Change Detection • Load up the sketch/Examples/Digital/StateChangeDetection • This sketch counts how many times a button is pressed

  18. Textile button sensors 2 2 • Two different hookups • Normal Button • Resistor 1 1 2 1

  19. textile perfboard

  20. Velostat

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