28123 Parallax Inc, 28123 Datasheet - Page 291

• 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

' What's a Microcontroller - ReadPushbuttonState.bs2
' Check and send pushbutton state to Debug Terminal every 1/4 second.
' {$STAMP BS2}
' {$PBASIC 2.5}
DO
LOOP
Your Turn – Building and Testing the Second Pushbutton Circuit
Once the first pushbutton circuit has been built and tested, the process can be repeated for
the second pushbutton.
Figure 10-3
Adding a Second Pushbutton Circuit to the Project
P4
DEBUG ? IN3
PAUSE 250
√
√
√
Add the pushbutton circuit shown in Figure 10-3.
Test the second pushbutton circuit by modifying ReadPushbuttonState.bs2 so
that it reads the circuit connected to P4. Run the program and verify that the
second pushbutton works.
Correct any problems you catch before moving on to the next activity.
220
Ω
Vss
10
kΩ
Vdd
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
P0
X2
X3
Vdd
Vin
Vss