Infrared IR proximity sensors with USB interface

Infrared proximity detectors with USB interface

USB A to B cable
USB type A to B cable
• Detect objects using invisible pulsed infrared (IR) light

• Simple computer connection via USB

• Use on model railway layouts and other process control applications

Azatrax infrared (IR) train detectors with USB interface

Proven pulsed infrared detection is independent of room lighting, works in tunnels and hidden track areas
Each sensor may be configured to operate in reflective mode or interrupt mode.

Reflective Mode
An object is detected when light from the IR LED is sensed by the IR photo receiver

Interrupt Mode
An object is detected when light from the IR LED is not sensed by the IR photo receiver

MRD2-U Dual IR train detector with USB interface

Senses trains at two locations
Timing data can be used to calculate train speed and direction
Provision for remote LED status indicators
Unique USB serial numbers
Powered by the USB bus, 25 mA required
Download installation instructions [pdf]
For software developers:
- device specifications [pdf]
- device descriptors [pdf]

MRD2-U $29.50

MRD2-S Dual IR train detector with switch control and USB interface

Senses trains at two locations
Three ways to control a track turnout:
° Automatic, triggered by IR sensors
° Computer via USB
° Manual push buttons
Provision for remote LED status indicators
Relay contacts rated for 3 Amps.
Unique USB serial numbers
Powered by the USB bus, 80 mA required, or by separate 9 - 15v AC or DC accessory supply
When powered by a separate supply, the automatic and manual switch controls remain operational even if the computer is down.
Download installation instructions [pdf]
For software developers:
- device specifications [pdf]
- device descriptors [pdf]

MRD2-S $43.50

Deepwoods Software's Model Railroad System is a model railroad software package that supports Azatrax USB train detectors.

Do you write your own layout control software? libusb.org is an open source collection of API's to read and write to USB peripherals for Linux, Mac OS and Windows.

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