122-28176 Parallax Inc, 122-28176 Datasheet - Page 24

• Manufacturer Part Number: 122-28176
• Description: GUIDE STUDENT PROCESS CONTROL
• Manufacturer: Parallax Inc

Specifications of 122-28176

• Accessory Type: Manual
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Propeller Education (PE) Kit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

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