122-27400 Parallax Inc, 122-27400 Datasheet - Page 47
122-27400
Manufacturer Part Number
122-27400
Description
MANUAL FOR SUMOBOT
Manufacturer
Parallax Inc
Datasheet
1.27400.pdf
(77 pages)
Specifications of 122-27400
Accessory Type
Manual
Product
Microcontroller Accessories
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
SumoBot®
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
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Chapter 4: Infrared Object Detection · Page 37
INSTALLING AND TESTING THE IR EMITTERS/DETECTORS
The SumoBot is specially designed to accommodate two IR emitter/detector pairs.
Before we install them, we need to assemble the IR LEDs into their shells, then bend and
trim the leads so that they don't become damaged or misaligned during competition.
Figure 4.1 shows the assembly IR LED (clear) into the protective shell (standoff and
shield). The purpose of this assembly is to prevent stray IR from falling directly onto the
detector and causing a false positive reading.
Figure 4.1: IR LED, Standoff, and Shield Assembly
After assembly, bend the leads downward at a 90-degree angle so that when looking at
the back side of the shield, the positive (longer) lead is on the right. Trim the leads as
shown above.
Modify the detectors by trimming the leads to about 3/8" inches. This will cause the
detectors to sit lower and more firmly in the sockets, reducing the chance of
misalignment during competition.
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