Parallax, Inc. • IR Buddy Demo Kit (#28016) • 11/2002
Page 1
599 Menlo Drive, Suite 100
Rocklin, California 95765, USA
Office:
(916) 624-8333
Fax:
(916) 624-8003
General:
Technical:
Web Site:
www.parallaxinc.com
Educational:
www.stampsinclass.com
IR Buddy Demo Kit (#28016)
Infrared Control and Communications
Introduction
The IR Buddy is an intelligent peripheral that allows the BASIC Stamp to transmit and receive infrared
control codes, and communicate (send/receive data packets) with other BASIC Stamps – all through a
single I/O pin and without wires between devices. The IR Buddy has onboard IR transmit and receive
hardware, as well as a communications controller that buffers incoming signals and manages data
exchange with the BASIC Stamp.
What kind of things can be done with the IR Buddy? While the possibilities are many, here's a small list
of ideas that can be realized with an IR Buddy and the Parallax BASIC Stamp:
•
Device controller using a standard television/VCR remote control
•
Fool-proof beam interrupt detection for alarm systems
•
Wireless data exchange between BASIC Stamps and IR master-slave control
Packing List
Verify that your IR Buddy Demo Kit is complete in accordance with the list below:
•
(2) IR Buddy Control/Communications modules (#550-28016)
•
(5) Red LEDs (#350-00006)
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(5) 470 ohm resistors (#150-04710)
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Jumper wires (#800-00016)
•
Documentation
Note: IR Buddy demonstration software files may be downloaded from www.parallax.com.
Features
•
Simple, single-wire connection [bi-directional] with BASIC Stamp
•
3-pin male header for connection to breadboards and standard 0.1" sockets
•
Auto-baud detection (2400, 4800, 9600) for Stamp-to-IR Buddy communications
•
Transmit RC-5 remote control codes; with programmable repeat and modulation frequency
•
Receive RC-5 control codes; buffer up to four separate key press events
•
Send and receive buffered 8-byte data packets between BASIC Stamps through wireless IR link
•
Loopback test checks Stamp-to-IR Buddy communications connection
•
Low current operation: 2 mA quiescent, 20 mA when transmitting
•
Sleep mode reduces current to 14 uA
