28122 Parallax Inc, 28122 Datasheet - Page 175
28122
Manufacturer Part Number
28122
Description
KIT WHAT'S A MICRO:PARTS ONLY
Manufacturer
Parallax Inc
Datasheet
1.28123.pdf
(340 pages)
Specifications of 28122
Accessory Type
Parts Kit
Product
Microcontroller Accessories
Core Processor
PIC16C57c
Flash
128 Bytes
Operating Supply Voltage
9 V
Board Size
31 mm x 16 mm
For Use With/related Products
Board of Education Full Kit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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ACTIVITY #1: BUILDING AND TESTING THE 7-SEGMENT LED DISPLAY
In this activity, you will manually build circuits to test each segment in the display.
7-Segment LED Display Test Parts
(1) 7-segment LED display
(5) Resistors – 1 kΩ (brown-black-red)
(5) Jumper wires
7-Segment LED Display Test Circuits
√
√
With power disconnected from your Board of Education or HomeWork Board,
build the circuit shown in Figure 6-4 and Figure 6-5.
Reconnect power and verify that the A segment emits light.
What’s the x with the nc above it in the schematic? The nc stands for not connected or
no-connect. It indicates that a particular pin on the 7-segment LED display is not connected
to anything. The x at the end of the pin also means not connected. Schematics sometimes
use just the x or just the nc.
1
E
3
4
C
6
B
7
A
8
9
F
10
G
5
DP
LED’s
Figure 6-3
7-Segment
Schematic
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