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Infrared Line Follower Kit (#28034)
v1.0 1/18/2011 Page 1 of 9
Infrared Line Follower Kit (#28034)
The Infrared Line Follower Kit from Parallax provides eight infrared emitter and receiver pairs for high-
precision line-following applications. Mounting hardware for both the Boe-Bot
®
and Stingray
™
robots are
also included for easy startup.
All IR frequency generation is done onboard using an ICM7555 chip, requiring no external signaling. This
allows for simple interfacing to the Infrared Line Follower, since the user only needs to read the state of
each IR receiver to detect white or black surfaces. An “Enable” pin is also included which when pulled low
puts the Infrared Line Follower into low-power mode.
Features
Compatible with both the Boe-Bot and Stingray robots from Parallax
Onboard 3 V regulator for easy use with Propeller-powered robots
Easily adjust 38–43 kHz IR frequency using an onboard potentiometer (See Calibration, page 8)
Onboard LEDs for instant line detection communication
High immunity to ambient lighting conditions
Mounting hardware included
No external signaling required
Key Specifications
Power Requirements: 3.3– 5.5 VDC;
maximum 35 mA working, 30 µA
when disabled
Communication: Single bit high/low
output for each IR emitter/receiver
pair
Operating temp: 32 to 140 °F
(0 to 50 °C)
Dimensions: 3.03 x 1.33 in
(7.7 x 3.4 cm)
Application Ideas
Line following
Maze navigation
Robotic contests
Detect line stripe width
Edge detection
