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BendMini v1.0 (obsolete)

This sensor has been replaced by the BendMini v1.1.

Bend your fingers and control your lights. Goes from 0° to 180° (larger flex angle possible). Shorther version available as BendMicro, longer version as BendShort. See this videoclip for a demo of the BendShort !

Application examples

  1. Combine with the TouchGlove and create your own custom dataglove for capturing finger bending, capture hand movements with a GForce2D&Tilt2D.
  2. Go whole-body with a bodysuit, capture all your joints' movements and express with all your extremities. A couple of Curls will capture muscle tension. Use a GForce2D&Tilt2D on your feet and hands to capture kicks and punches. A Hot will keep you in check of your body temp.
  3. Since it's such a thin and flexible sensor, it's usable for measuring airflow.
  4. Wireless Wi-miniDig with BatteryPack recommended in all cases to operate without tether.
  5. For bookworms: has also been used to detect turning of pages.

Technical specifications

Product BendMini sensor
Version 1.0 (15 December 2000)
Sensing parameter flex angle multiplied by flex radius
Sensing method piezo-resistive
Range 0° to 180° (larger flex angle possible)
Minimum flex radius 5 mm (0.2 inch)
Output impedance 6 KOhm (at 0° flex angle) to 500 KOhm (at 180° flex angle), in parallel with 47 KOhm
Calibration (using minimum flex radius)
Degrees Voltage (use 5 V power supply) 7-bit MIDI value (use 'no processing' editor preset)
0 4.33 110
180 0.00 0
Power supply 1.0 to 10 V DC, 0.1 mA at 5 V
Sensor dimensions 63 x 7 x 0.1 mm (2.5 x 0.3 x 0.004 inch)
Weight 15 g (0.5 oz), incl. cable
Cable 0.90 m (35 inch) twisted, unshielded, red wire = power, black wire = ground, white wire = sensor output, maximum extension 30 m (98 ft)
Connector male plug with a row of 3 pins spaced 2.54 mm (0.100 inch)
Application notes The sensor output is determined by both the angle between the ends of the sensor as well as the flex radius; bending the sensor sharply will result in a higher value than bending the sensor smoothly, when keeping the ends in the same position. Shorther version available as BendMicro, longer version as BendShort.

This page was updated on Tuesday 29 August 2006.
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