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A 100 mm linear soft potentiometer (ribbon sensor) manufactured by Spectra Symbol. This pressure-sensitive ribbon controller features an adhesive backing for...

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A 100 mm linear soft potentiometer (ribbon sensor) manufactured by Spectra Symbol. This pressure-sensitive ribbon controller features an adhesive backing for easy mounting and provides a variable resistance output based on the position of touch along its length.

Key Features

  • 100 mm Active Length – Linear position sensing along the ribbon
  • 10K Nominal Resistance – Across the two outer leads
  • Analog Output – Centre pin resistance varies with touch position
  • Adhesive Backing – Peel-and-stick mounting
  • Manufacturer – Spectra Symbol

Ideal For

  • Position and slider input for Arduino projects
  • Music controllers and MIDI interfaces
  • Touch-based user interfaces
  • Robotics and motion sensing
Warning: Do not connect the outer pins directly to power and ground. Use 10K series resistors on each outer pin — one to ground, one to Vcc (3.3V or 5V). Read the analog voltage on the centre pin, which will range from ⅓ Vcc to ⅔ Vcc. When no pressure is applied, the centre pin floats — use a weak pullup (e.g. 100K) to stabilise the reading.

Jargon buster

Plain-language definitions for the technical terms used above.

MIDI
MIDI is a standard way for electronic instruments, controllers, and software to send musical control messages such as notes, velocity, and timing. If a board supports MIDI, it can be triggered from keyboards, drum pads, sequencers, or other music gear rather than only from buttons or code.
potentiometer
A variable resistor usually turned with a knob or shaft to create an adjustable electrical signal. It is often used for inputs such as volume, brightness or position, so it helps beginners learn how a microcontroller reads changing values.

Related Tutorials

Free guides on learn.littlebird.com.au

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