[[cyclopedia:electronics:softsensor-stroke]]

Soft Stroke Sensor

Electronics Project
Made ByHannah (based on http://www.kobakant.at/DIY)
DifficultyModerate
Time Required1.5 hour(s)
IngredientsConductive Yarn, Conductive Knit Fabric, Conductive Fabric, Thread
Equipment RequiredSewing Needle, Scissors
Photo

  • Cut out fabric and conductive fabric using templates. Place conductive fabric strips on wrong side of base fabric.

  • To stop conductive fabric from falling off, stitch ends of conductive fabric to base fabric using a non-conductive thread. Try not to stretch out conductive fabric.

  • Thread needle with conductive yarn. Establish a connection to conductive yarn by creating a few small stitches along side. Using same piece of thread create loops down length of sample where the conductive fabric is placed. To make even loops - try looping over a pencil (see Basic sewing guide ‘couching’). The loops should be ~3cm long.
  • Repeat steps 2 & 3 on second area of conductive fabric and then step 3 again in centre to create a few rows.

You should end up with 3-5 parallel rows of tufted loops on surface of sample. The rows should be close enough together to overlap when pressed flat.

To test your soft sensor: Find a resist-O-meter and make sure that one LED is on to show that the battery is connected. Connect each alligator clip to a one of the conductive tabs on either side of your sensor.

Try a different type of stroke sensor, like this one with ripstop instead of yarn.

  • cyclopedia/electronics/softsensor-stroke.txt
  • Last modified: 2019/11/18 15:32
  • by Daniel Harmsworth