Flowol The Task
Objectives To gain an understanding of how the Flowol software works
Progression Learning the flowchart symbols Completing a flowchart diagram Testing this diagram in Flowol Matching flowcharts to scenarios Simulating temperature control Using procedures to build an efficient program
START STOP Problem Resolution IS IT WORKING? YES NO DID YOU MESS WITH IT? NO YES TURN IT OFF HIDE IT SMILE! STOP
Flowchart symbols Start or stop Input or output Process Decision Subroutine
START STOP Problem Resolution IS IT WORKING? YES NO DID YOU MESS WITH IT? NO YES TURN IT OFF HIDE IT HIDE IT SMILE! STOP
Problem Subroutine OPEN CUPBOARD TURN LIGHT ON CHUCK IT IN TURN LIGHT Sub 1(Hide It) Problem Subroutine OPEN CUPBOARD TURN LIGHT ON CHUCK IT IN TURN LIGHT OFF CLOSE CUPBOARD STOP
A Simple Start TURN OUTPUT 1 ON START STOP
A Simple Start TURN OUTPUT 1 ON TURN OUTPUT 1 OFF START STOP
A Simple Start START TURN OUTPUT 1 ON DELAY 1 OFF
Planning Flowcharts Start Is light less than 50? Turn lamp on Yes Is light less than 50? Turn lamp on No Lesson 3 – Activity 2
Planning Flowcharts Start Is light less than 50? Turn lamp on Yes Is light less than 50? Turn lamp on No Turn lamp off Lesson 3 – Activity 2
Planning Flowcharts Start Is light less than 50? Turn lamp on Yes Is light less than 50? Turn lamp on No Turn lamp off Lesson 3 – Activity 2 Beep
Putting Our Plan Into Flowol
The Mimic Lamp Light Level
Simulating Temperature Control Room temperature Electric fire Cooling fan Too cold (<10) ON OFF Just right(10<>20) Too hot(>20)
Matching a Flowchart to a Scenario When the temperature in the house drops below 10 degrees C, turn on the fire, if it goes above, turn it off. When the temperature in the house rises above 20 degrees C, turn on the fan, if it goes below, turn it off.
Electric Fire / Cooling Fan
Using procedures to build an efficient program Design a system to help a person with impaired hearing in his or her own home. Consider how you can make sure that the person knows that: • someone has rung the door bell; • the smoke alarm is sounding. How will the person know the difference between these two sounds?
The Main Task Devise a control program that will use the light bulb to differentiate between the smoke alarm and the doorbell, using subroutines to increase efficiency.
Objectives To gain an understanding of how the Flowol software works