Products for USB Sensing and Control
Products for USB Sensing and Control


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Sharp Distance Sensor (20-150cm)

ID: 3522_0
Recommended for new designs: Phidgets Inc. is not the original manufacturer for this product, but we intend to sell it (or a similar replacement with a compatible form, fit and function) for as long as it is available from the supplier.

Using reflected IR light, measure the distance of an opaque object 20-150cm away.


Quantity Available: 1000+

Qty Price
5 $15.36
10 $14.72
25 $14.40
50 $14.24
100 $14.08

This popular sensor made by Sharp produces an analog output that varies from 2.5V at 20cm to 0.4V at 150cm.

Based on "typical values" from Sharp, the formula to translate output voltage ratio into Distance is:

Distance (cm) = 9.462/(VoltageRatio - 0.01692)

This sensor can find the distance to objects that present a very narrow edge such as a wall at a very sharp angle.

Note: The output of this sensor will vary from unit to unit, and based on the characteristics of the target (reflectance, size, direction of motion, and object alignment). Our formula is based on the data provided by Sharp. If you find that you are not getting good results with the standard formulas, you may want to derive your own formula to better characterize your situation.


The sensor plugs in the 1101 - IR Distance Adapter. See the Connection & Compatibility tab for details.

Sharp Sensor Adapter

This sensor connects directly to the Sharp sensor adapter so that it can be plugged into a Phiget InterfaceKit or Hub. They are connected using a custom cable that comes with the adapter.

Product Sensor Properties
Image Part Number Price Controlled By
1101_0 $7.00 VoltageRatio Input

Product Specifications

Sensor Properties
Sensor Type Distance (Infrared)
Controlled By Sharp Adapter
Sensor Output Type Ratiometric
Measurement Distance Min 200 mm
Measurement Distance Max 1.5 m
Response Time Max 50 ms
Electrical Properties
Supply Voltage Min 4.5 V DC
Supply Voltage Max 5.5 V DC
Current Consumption Max 50 mA
Physical Properties
Weight 6 g
Operating Temperature Min -10 °C
Operating Temperature Max 60 °C
Customs Information
Canadian HS Export Code 9027.50.00
American HTS Import Code 9027.50.40.60
Country of Origin JP (Japan)


If you are not getting good results with the standard formula, have a look at the product datasheet which has good notes on what can affect the sensor's performance



All measurements are based on data provided by Sharp who used an r-27 calibration card, 90% reflectance. Based on our formula, we have calculated a minimum and maximum distance with the card at minimum and maximum distance.

Code Samples

Example Options


				Make your selections to display sample code.

Here's a full list of distance sensors to choose from:

Product Sensor Properties
Image Part Number Price Sensor Type Controlled By Measurement Distance Min Measurement Distance Max
1146_0B $5.00 Distance (Infrared) VoltageRatio Input 1.5 mm 4 mm
3520_0 $14.00 Distance (Infrared) Sharp Adapter 40 mm 300 mm
3521_0 $12.00 Distance (Infrared) Sharp Adapter 100 mm 800 mm
3522_0 $16.00 Distance (Infrared) Sharp Adapter 200 mm 1.5 m
DST1000_0 $30.00 Infrared (Time-of-Flight) VINT 4 mm * 170 mm
DST1001_0 $30.00 Infrared (Time-of-Flight) VINT 20 mm * 650 mm
DST1002_0 $35.00 Infrared (Time-of-Flight) VINT 20 mm * 1.3 m
DST1200_0 $25.00 Distance (Sonar) VINT 40 mm 10 m