28125 Parallax Inc, 28125 Datasheet - Page 257
28125
Manufacturer Part Number
28125
Description
TEXT ROBOTICS
Manufacturer
Parallax Inc
Datasheet
1.28125.pdf
(360 pages)
Specifications of 28125
Title
Robotics with the Boe-Bot
Product
Microcontroller Accessories
Lead Free Status / RoHS Status
Not applicable / Not applicable
- Current page: 257 of 360
- Download datasheet (5Mb)
Testing the System
There are quite a few components involved in this system, and this increases the
likelihood of a wiring error. That’s why it’s important to have a test program that shows
you what the infrared detectors are sensing. You can use this program to verify that all
the circuits are working before unplugging the Boe-Bot from its serial cable and testing
other objects.
Example Program – TestIrPairsAndIndicators.bs2
P10
Anode
leads
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
P0
X2
X3
To Servos
√
√
Board of Education
Rev C
Vdd
+
15 14
Reconnect power to your board.
Enter, save, and run TestIrPairsAndIndicators.bs2.
X4
220
Left IR Pair
Vdd
Vin
© 2000-2003
Ω
13 12
LED
Red
X5
Vss
Red
Black
Vss
Anode
leads
HomeWork Board
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
P0
P1
To Servos
X2
X3
(916) 624-8333
www.parallax.com
www.stampsinclass.com
Right IR Pair
Vdd
+
220
Vin
Ω
LED
Red
Vss
Rev B
Vss
Figure 7-6
Left and Right
Indicator LEDs
Figure 7-7
Wiring
Diagrams for
Red LED
Indicators
with IR Object
Detection
Circuits
Board of
Education
(left) and
HomeWork
Board (right).
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