Needle-Felted Pressure Sensor

Create a pressure sensor using:

– Needle-felted wool

– Thin muslin

– Velostat

– Conductive thread

This sensor can be used an analog input for Arduino code.

Step 1: Prepare the Core Components

Component 1: A felted wool ball. This can be made using unwoven wool (I used Leicester wool), a felting needle, and a piece of foam. There are several tutorials specific to felting online. Here, we just have a basic ball.

Component 2: Two fabric swatches, each in an β€œ+” shape. I used a thin muslin here.

Step 2: Add Conductive Thread to First Swatch

On one of the two swatches, sew a trace of conductive thread. I used stainless steel thread, and a couch stitch. Leave a few inches of extra thread at one end.

Step 3: Attach First Conductive Layer to Ball

Sew this first swatch onto the ball, with the conductive thread facing outward.

Step 4: Add the Second Conductive Layer

On the second swatch, create a new trace of conductive thread. This trace should be different than the first.

Not pictured here, but very important: cut a layer of velostat in the same β€œ+” shape as the two conductive swatches. The velostat is a pressure-sensitive conductive sheet, and is essential to this sensor functioning.

You are going to wrap the second β€œ+” swatch around the first one– so that the conductive thread on each face each other. But! before attaching, make sure the velostat is sandwiched between the two.

Source: Needle-Felted Pressure Sensor


About The Author

Muhammad Bilal

I am a highly skilled and motivated individual with a Master's degree in Computer Science. I have extensive experience in technical writing and a deep understanding of SEO practices.

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