28176 Parallax Inc, 28176 Datasheet - Page 24
28176
Manufacturer Part Number
28176
Description
KIT PARTS PROCESS CONTROL W/TEXT
Manufacturer
Parallax Inc
Datasheet
1.122-28176.pdf
(330 pages)
Specifications of 28176
Accessory Type
Process Control
Product
Microcontroller Accessories
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
BASIC Stamp® 2 and Board of Education
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
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When the button is not pressed, the conditional test of
because the value of
PAUSE 250
When the button is pressed,
within the block will be executed, and the LED will blink.
Challenge 1-3: Code for True and False Conditions
Many times, different code must be executed depending on whether a condition is true or
false. The
condition is false, the code in the
√
IF (condition) THEN
ELSE
ENDIF
Figure 1-8 is a flowchart that requires different code depending on whether the
button is pressed or not. Modify ConditionalLEDBlink.bs2 to match the
flowchart's operation.
Code to run if true
Code to run if false
IF (PBVal = 0) THEN
ENDIF
' ******** 1/4 second pause
PAUSE 250
Code Formatting Tip: While indents in lines are not required, they do help to visually
represent code that is common to sections.
.
IF…THEN…ELSE...ENDIF
HIGH LED
PAUSE 500
LOW LED
PBVal
is 1. Execution will branch to after the
PBVal
ELSE
' If condition is true then,
' blink the LED
will in fact equal 0;
structure can be used to perform this task. If the
section will be executed.
PBVal=0
PBVal=0
will be true, the code
ENDIF
will result in false
, executing the
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