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Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9


Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
+1 403 282-7335

IR Reflective Sensor 10cm

ID: 1103_1B Lifecycle
Mature: This product (or a similar replacement with a compatible form, fit and function) will be produced as long as the parts and components required to make it are available.

This IR proximity sensor can detect opaque objects within 10cm and connects to an Analog Input or VINT Hub port.


Quantity Available: 582

Qty Price
5 $8.55
10 $8.10
25 $7.20
50 $6.30
100 $5.85

Note: The 1103_1B is identical to the 1103_1, except that you have the option of which size of Phidget cable to include.

This sensor can detect the presence of objects at a distance of up to 10cm away, depending on how well the surface of the object reflects infrared light. When an object enters the range of detection, the output voltage becomes zero, and when it leaves, it returns to 5V. The 1103 works just as well in both dark and well lit environments.

The sensor cannot detect the presence of the object if it is emitting large amounts of light, such as a light bulb.

Interface Boards and Hubs

This sensor can be read by any Phidget with an Analog Input or VINT Hub port. It will connect to either one using a Phidget cable. VINT Hub ports can behave just like Analog Inputs, but have the added flexibility of being able to be used as digital inputs, digital outputs, or ports to communicate with VINT devices. For more information about VINT, see the VINT Overview page.

Product Voltage Inputs
Part Number Price Number of Voltage Inputs Voltage Input Resolution
PhidgetInterfaceKit 8/8/8 Mini-Format
$80.00 8 10 bit
PhidgetInterfaceKit 2/2/2
$50.00 2 10 bit
PhidgetInterfaceKit 8/8/8
$80.00 8 10 bit
PhidgetInterfaceKit 8/8/8
$80.00 8
PhidgetInterfaceKit 8/8/8 w/6 Port Hub
$110.00 8 10 bit
PhidgetTextLCD 20X2 : White : Integrated PhidgetInterfaceKit 8/8/8
$70.00 8 10 bit
8x Voltage Input Phidget
$20.00 8 12 bit
VINT Hub Phidget
$30.00 6 (Shared) * 16 bit
VINT Hub Phidget
$40.00 6 (Shared)
1-Port VINT Hub Phidget
$24.00 1 (Shared)
Wireless VINT Hub
$60.00 6 (Shared) * 16 bit
$120.00 6 (Shared) * 16 bit

Phidget Cables

This sensor requires a Phidget cable to connect it to an InterfaceKit or Hub. You can solder multiple cables together in order to make even longer Phidget cables, but you should be aware of the effects of having long wires in your system. See a full list of Phidget cables below.

Product Physical Properties
Part Number Price Cable Length
Phidget Cable 60cm
$2.00 600 mm
Phidget Cable 10cm
$1.50 100 mm
Phidget Cable 350cm
$3.00 3.5 m
Phidget Cable 120cm
$2.25 1.2 m
Phidget Cable 180cm
$2.75 1.8 m
Phidget Cable 30cm
$1.75 300 mm
Phidget Cable 90cm
$2.00 900 mm
Phidget Cable 150cm
$2.50 1.5 m

Getting Started

Welcome to the 1103 user guide! In order to get started, make sure you have the following hardware on hand:

Next, you will need to connect the pieces:

1103 1 Connecting The Hardware.jpg
  1. Connect the 1103 to the HUB0000 with the Phidget cable.
  2. Connect the HUB0000 to your computer with the USB cable.

Now that you have everything together, let's start using the 1103!

Using the 1103

Phidget Control Panel

In order to demonstrate the functionality of the 1103, we will connect it to the HUB0000, and then run an example using the Phidget Control Panel on a Windows machine.

The Phidget Control Panel is available for use on both macOS and Windows machines. If you would like to follow along, first take a look at the getting started guide for your operating system:

Linux users can follow the getting started with Linux guide and continue reading here for more information about the 1103.

First Look

After plugging in the 1103 into the HUB0000, and the HUB0000 into your computer, open the Phidget Control Panel. You will see something like this:

HUB0000 Panel.jpg

The Phidget Control Panel will list all connected Phidgets and associated objects, as well as the following information:

  • Serial number: allows you to differentiate between similar Phidgets.
  • Channel: allows you to differentiate between similar objects on a Phidget.
  • Version number: corresponds to the firmware version your Phidget is running. If your Phidget is listed in red, your firmware is out of date. Update the firmware by double-clicking the entry.

The Phidget Control Panel can also be used to test your device. Double-clicking on an object will open an example.

Voltage Ratio Input

Double-click on a Voltage Ratio Input object in order to run the example:

1018 Sensors VoltageRatioInput.png

General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Modify the change trigger and/or data interval value by dragging the sliders. For more information on these settings, see the data interval/change trigger page.
  • Select the 1103 from the Sensor Type drop-down menu. The example will now convert the voltage into a 1 (object detected) or 0 (no object detected) automatically. Converting the voltage to a 1 (object detected) or 0 (no object detected) is not specific to this example, it is handled by the Phidget libraries, with functions you have access to when you begin developing!

Technical Details


The 1103 can detect the presence of an object at 10cm. It does not rely on the reflective properties of the surface of the object. It cannot detect the presence of the object if it is emitting large amounts of light, such as a light bulb.

The 1103 will not detect objects that are more than 10cm away, but will detect objects that are closer than 10cm. When an object is in the line of sight, at a distance of 10cm or closer, the 1103 voltage ratio will decrease from 1.0 to 0. Once the object leaves the line of sight, the value is restored to 1.0.

The 1103 works just as well in both dim and well lit areas. You may have trouble using this sensor through a pane of glass, since the IR light can easily reflect off of the surface of the glass.

Phidget Cable


The Phidget Cable is a 3-pin, 0.100 inch pitch locking connector. Pictured here is a plug with the connections labelled. The connectors are commonly available - refer to the Analog Input Primer for manufacturer part numbers.

What to do Next

  • Programming Languages - Find your preferred programming language here and learn how to write your own code with Phidgets!
  • Phidget Programming Basics - Once you have set up Phidgets to work with your programming environment, we recommend you read our page on to learn the fundamentals of programming with Phidgets.

Product Specifications

Sensor Properties
Sensor Type Proximity (Infrared)
Controlled By VoltageRatio Input
Sensor Output Type Ratiometric
Detecting Distance Min 0 m
Detecting Distance Max 100 mm
Electrical Properties
Supply Voltage Min 4.8 V DC
Supply Voltage Max 5.3 V DC
Current Consumption Max 9 mA
Output Impedance 1 kΩ
Physical Properties
Weight 4.3 g
Operating Temperature Min -10 °C
Operating Temperature Max 60 °C
Customs Information
Canadian HS Export Code 8473.30.00
American HTS Import Code 8473.30.51.00
Country of Origin CN (China)


Product History

Date Board Revision Device Version Packaging Revision Comment
March 20060N/AProduct Release
April 20101N/ANew Sensor Chip mounted vertically on board (sensor faces up)
February 20201N/ABRemoved Phidget cable from packaging

This device doesn't have an API of its own. It is controlled by opening a VoltageRatioInput channel on the Phidget that it's connected to. For a list of compatible Phidgets with VoltageRatio Inputs, see the Connection & Compatibility tab.

You can find details for the VoltageRatioInput API on the API tab for the Phidget that this sensor connects to.

Code Samples

Example Options


				Make your selections to display sample code.

Have a look at our proximity sensors:

Product Sensor Properties
Part Number Price Controlled By Sensor Type Detecting Distance Max
IR Reflective Sensor 10cm
$9.00 VoltageRatio Input Proximity (Infrared) 100 mm
Capacitive Proximity Sensor - 8mm
$20.00 Digital Input (5V) Proximity (Capacitive) 8 mm
Capacitive Proximity Sensor - 15mm
$30.00 Digital Input (5V) Proximity (Capacitive) 15 mm
Photoelectric Tripwire Sensor - 10m
$50.00 Digital Input (5V) Through-Beam (Photoelectric) 10 m
Inductive Proximity Sensor - 5mm
$10.00 Digital Input (5V) Proximity (Inductive) 5 mm
Magnetic Contact Switch
$2.50 Digital Input (5V) Proximity (Magnetic) 19 mm
Miniature Magnetic Contact Switch
$2.50 Digital Input (5V) Proximity (Magnetic) 12 mm
Motion Sensor Phidget
$15.00 Voltage Input Motion (PIR)
Beam Break Phidget
$10.00 VoltageInput or Digital Input Proximity (Infrared) 15 mm