28123 Parallax Inc, 28123 Datasheet - Page 189

• Manufacturer Part Number: 28123
• Description: TEXT WHAT'S A MICROCONTROLLER
• Manufacturer: Parallax Inc
• Type: Programmingr

Specifications of 28123

• Style: Book
• Title: What's a Microcontroller?
• Contents: Whats a Microcontroller? Text
• Product: Microcontroller Accessories
• Core Processor: PIC16C57c
• Flash: 128 Bytes
• Operating Supply Voltage: 9 V
• Board Size: 31 mm x 16 mm
• Lead Free Status / RoHS Status: Not applicable / Not applicable

NEXT
DIRH = %00000000
END
Your Turn – Displaying 0 through F Again
ACTIVITY #4: DISPLAYING THE POSITION OF A DIAL
In Chapter #5, Activity #4 you used the potentiometer to control the position of a servo.
In this activity, you will display the position of the potentiometer using the 7-segment
LED display.
Dial and Display Parts
(1) 7-segment LED display
(8) Resistors – 1 kΩ (brown-black-red)
(1) Potentiometer – 10 kΩ
(1) Resistor – 220 Ω (red-red-brown)
(1) Capacitor – 0.1 µF
(7) Jumper wires
Building the Dial and Display Circuits
Figure 6-14 shows a schematic of the potentiometer circuit that should be added to the
project. Figure 6-15 shows a wiring diagram of the circuit from Figure 6-14 combined
with the circuit from Figure 6-10 on Page 172.
DEBUG "
PAUSE 1000
√
√
Modify DisplayDigitsWithLookup.bs2 so that it counts from 0 through F in
hexadecimal. Don’t forget to update the
values.
Add the potentiometer circuit to the 7-segment LED display circuit as shown
in Figure 6-15.
", DEC2 index, "
%01110111, %11000100, %11110111, %11110110 ], OUTH
", BIN8 OUTH, CR
FOR…NEXT
loop’s
start
and
end