Copyright © Parallax Inc.
Eddie Robot Platform (28990 & 28992)
v1.1 1/16/2013 Page 4 of 17
Step 3: Ping))) and IR Sensor Module assembly
Figure 3a shows the components for each sensor assembly. You will need a small Phillips screwdriver to
assemble each sensor module.
Figure 3a
Each Ping assembly consists of:
Each IR sensor assembly consists of:
(1) Ping))) sensor (#28015)
(1) IR sensor (#28995)
(1) Cable, servo extension (#805-00002)
(1) IR Sensor to servo cable (#805-28995)
(2) 4-40 x 5/8” black machine screws (#700-00028)
(2) 4-40 x 5/8” blk mach. screws (#710-00035)
(2) 1/16” thick nylon spacers (#713-00015)
(2) 1/8” thick nylon spacers (#713-00013)
(2) ¼” thick nylon spacers (#713-00005)
(2) ¼” thick nylon spacers (#713-00005)
(1) Acrylic Ping stand (#725-32008)
(1) Acrylic IR Stand (#725-28995)
Refer to Figure 3b, and note the different locations of the spacers on each assembly. In each case, make
sure the “labeled” or etched sides of the Stands are on the opposite side from the sensor assemblies.
For the IR module, insert two 5/8” long, black machine screws through the mounting holes from the
backside of the module. Place (1) of the 1/8” long spacers and (1) of the ¼” long spacers on each of the
machine screws (as shown in Figure 3b). Carefully align this assembly onto the backside of the acrylic IR
stand, and gently tighten each of the machine screws until they’re snug. Nuts are not required. The
machine screws will cut their own threads as you screw them into the acrylic. Do not over tighten.
Assemble the Ping))) module by sliding a 1/16” thick nylon spacer onto each of the two 5/8” long, black
machine screws. Insert these screws (with the 1/16” washers) through the Ping’s PCB mounting holes.