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ReachClose v3.1 $34.31US
2 - 6 : $32.59US ( save 5% )
7 - 19 : $30.87US ( save 10% )
20 + : $27.44US ( save 20% )
excl. sales tax

A sensor for waving at your gear. Leave your fans in awe of your magic majestic gestures. Reaches up to 150 cm (59 inch) distance. View, calibrate, record and map the sensor data using our ReachClose software (see below). To have a range upto 5.5 meter use the ReachFar. This sensor combines with almost any of our other sensors. For a demo of the ReachClose v2.2, see this videoclip (also available in QuickTime) !

Application examples

  1. Measurement of proximity of objects like hands or walls.
  2. Great for making that fake Theremin.
  3. Update your keyboard with this handy gadget.
  4. Combine with a TapTiled floor, some MoveOn and/or Advance and/or ReachFar sensors and make sure every move of your visitor has an effect. The Flash + SeeLaser combo adds a touch of diamond robbery feeling.
  5. Pamper your robot or toy car and combine with GForce3D, and Orient3D to detect approaches to and/or impacts with walls and what have you.
  6. Create a fancy control panel by combining Push sensors (Push, Push3D), Reach sensors (Reach, ReachClose), Slide sensors (eg. Slide-50, Slide-200, Slide-500, SlideRound, SlideWide), Touch sensors (Touch, TouchMicro-05 TouchMicro-10, TouchMini, TouchMiniOn, TouchStrip) and Turn sensors to name a few.

Technical specifications

Product ReachClose sensor
Version 3.1 (December 2017)
Sensing parameter distance, proximity
Sensing method modulated infra-red light reflectance sensor
Active volume ? cone
Range 10 cm to 150 cm (4.0 to 59 inch)
Response time 16.5 (min) to 21.5 (max) 3.7 ms
Power supply 4.5 to 5.5 V DC, 33 mA (50 mA max) at 5 V
Sensor dimensions 40 x 12 x 10 mm (1.6 x 0.47 x 0.40 inch), incl. one 3 mm (0.1 inch) mounting hole
Operating temperature -10 to 60 C (14 to 140 F)
Weight 15 g (0.53 oz), incl. cable
Cable 1.0 m (39 inch), shielded, red wire = power, black wire = ground, white wire = sensor output, maximum extension 15 m (49 ft)
Connector male plug with a row of 3 pins in a row spaced 2.54 mm (0.100 inch)
Software support
  • Our SensePlay software is a very easy way to quickly map sensor data to (sequences of) sounds, images and videos using a drag & drop user interface.
  • Our EditorX software allows you to configure the digitizer to process and map the sensor data of multiple sensors simultaneously.
  • Our Link software allows you to receive the sensor data from the digitizer and use your computer to view, calibrate, record, process and map the sensor data of multiple sensors simultaneously.
  • Our SensorX software allows you to receive the sensor data from the digitizer and use your computer to view, calibrate, record, process and map the data of a single sensor.

  • On MacOS, if upon attempting to run the app a popup appears stating that the app is damaged, type "sudo spctl master-disable" in a terminal to bypass the Apple Gatekeeper. See also eg. this post.
Application notes
  1. Due to the modulation of the infra-red light that is used to detect a reflecting object the sensor is insensitive to ambient light variations.
  2. Glass or other transparent surfaces can be placed in front of the sensor but for best results place the sensor as close as possible to the surface and make sure the sensor emits/receives light perpendicular to the surface to avoid reflections that distort the sensor output.
  3. Warning ! Make sure the sensor is plugged into the Digitizer with the red wire connected to 5V power.
  4. For best results, use only one ReachClose per digitizer since the current requirement fluctuates between 30 - 50 mA which creates significant power supply noise. Hence, when using multiple ReachClose with one digitizer the sensor signals will be more noisy.
  5. The number of ReachClose that can be used with one digitizer is determined by the maximum current that can be supplied to the sensors by the digitizer divided by the maximum current required by the ReachClose, ie. 50 mA.

This page was updated on Thursday 13 June 2019.
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