28123 Parallax Inc, 28123 Datasheet - Page 87

• 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

the number 1, and when the pushbutton is not pressed, the Debug Terminal displays the
number 0.
' 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
How ReadPushbuttonState.bs2 Works
The
250
IN3
instant the
DEBUG ? IN3
PAUSE 250
. Each time through the
to the Debug Terminal. The value of
DO…LOOP
√
√
√
√
Enter the ReadPushbuttonState.bs2 program into the BASIC Stamp Editor.
Run the program.
Verify that the Debug Terminal displays the value 0 when the pushbutton is
not pressed.
Verify that the Debug Terminal displays the value 1 when the pushbutton is
pressed and held.
DEBUG
in the program repeats every ¼ second because of the command
command is executed.
DO…LOOP
, the command
IN3
is the state that I/O pin P3 senses at the
Figure 3-8
Debug Terminal
Displaying
Pushbutton States
The Debug Terminal
displays 1 when the
pushbutton is pressed
and 0 when it is not
pressed.
DEBUG ? IN3
sends the value of
PAUSE