Parallax 28108 Quick Start Manual Download Page 3

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Figure 2 – Schematic

Use the Figure 4 to connect the servo extension cables to the male-male headers that are plugged into

the breadboard. The other end of each cable is plugged into a QTI. Be careful when you make these

connections, and pay close attention to the wire colors listed in the figure. Notice that the far left and mid

left cables have white wires that plug onto header pins in the same breadboard row. The same applies to

the mid right and far right QTI cables. Instead of common white wires, the mid left and mid right QTI

cables share a pair of black wires.

Boe-Bot

ActivityBot

Shield-Bot

Figure 3 – Wiring Diagrams

QTI LIne Follower AppKit (#28108)

v3.0 2/25/2015 Page 3 of 4

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Summary of Contents for 28108

Page 1: ...types of lines This activity demonstrates how the QTIs can be used for digital line following on a simple 3 4 inch wide electrical tape course with a white background See the Downloads and Documentat...

Page 2: ...rews and adjust the position of the QTI sensors so that they are closely positioned edge to edge 6 Tighten all connections securely Figure 1 Mechanical Assembly Building the Sensing Circuits Each QTI...

Page 3: ...ure Notice that the far left and mid left cables have white wires that plug onto header pins in the same breadboard row The same applies to the mid right and far right QTI cables Instead of common whi...

Page 4: ...an be useful for systems with analog to digital A D inputs IMPORTANT DO NOT try to use 10 k resistors with Parallax line following example code the code will not work Revision History 3 0 PBASIC code...