28123 Parallax Inc, 28123 Datasheet - Page 292

• 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

ACTIVITY #2: BUILDING AND TESTING EACH RC-TIME CIRCUIT
Now that the two pushbutton circuits are built and tested, you can move on to the RC-
time circuits.
Extra Parts for Potentiometer and Photoresistor Circuits
(2) Resistors – 220 Ω (red-red-brown)
(2) Capacitors – 0.1 µF
(4) Jumper wires
(1) Photoresistor
(1) Potentiometer – 10 kΩ
Building the Potentiometer Circuit
Figure 10-4
Adding a Potentiometer Circuit
Testing the Potentiometer Circuit
You can test this circuit using ReadPotWithRcTime.bs2. This program was first used in
Chapter #5 to read the potentiometer circuit.
Example Program: ReadPotWithRcTime.bs2
P7
√
√
Add the potentiometer circuit shown in Figure 10-4 to the project.
Enter and run the ReadPotWithRcTime.bs2.
220
Ω
nc
Pot
10
Vss
kΩ
0.1 µF
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
P0
X2
X3
Vdd
Vin
Vss