28176 Parallax Inc, 28176 Datasheet - Page 13

• Manufacturer Part Number: 28176
• Description: KIT PARTS PROCESS CONTROL W/TEXT
• Manufacturer: Parallax Inc

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

This text explores these areas of process control through simple circuits using the BASIC
Stamp microcontroller, and illustrates use with much larger systems.
ACTIVITY #1: FLOWCHARTS FOR REPRESENTING PROCESSES
When you hear the word ‘flowchart’, it may bring to mind programming, but a flowchart
is often used for more than programming. A flowchart is a graphical representation of
steps and decisions used to arrive at a logical outcome. It can be used to arrive at
management decisions, system troubleshooting decisions, and other processes that
involve well-defined steps and outcomes.
used in flowcharting. These blocks, connected with flow lines, are used to describe the
actions and flow of the program.
Start/Stop: Indicates the beginning or end of a program or routine.
Process: Indicates an internal process, such as calculations or
delays.
Input/Output: Indicates an input from an external source or output
to an external source.
Decision: Indicates a decision to continue flow in one of two
directions based on a condition.
Predefined Process: Indicates a predefined process, such as a
subroutine, to be performed.
Matching connectors indicate a connection between two locations
in the flowchart.
Flow lines: Indicates direction of flow between symbols.
Table 1-1: Flowcharting Symbols
Table 1-1 shows the most popular symbols
Chapter 1: Process Control and Flowcharts · Page 3