Using Flowol [PDF]

Using Flowol The Toolbar Used to remove symbols and arrows in a flowchart

Start/Stop Used to start or stop a program Output Used to turn on or turn off an output device. Up to 4 devices can be turned on or off within one symbol Process Used to put in a delay e.g. leaves the bulb on for 5 seconds Decision Used to decide if ‘yes to do this’ or ‘no to do that’ e.g. checks whether a switch is on and decides where to go in the program Text Used to add text to the flowchart e.g. to label it

Edit

Used to highlight symbols and arrows which can be erased, changed or moved

Used to link the symbols together. Yes and No arrows are used with the Decision symbol

Used to run the program

Used to download program onto the FlowGo interface box

Zebra crossing mimic 1. 2. 3. 4. 5.

6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18.

Double click on the Flowol icon to open program Click on Window and Mimic Click on ZEBRA. Tick ‘Show Labels’ and OK. Click on the Start symbol, let go, position the symbol on the screen and click again. Use the prompts to select Start. Select the Output symbol and position under the Start symbol Using the prompts select turn, output, 1, on and click OK. Select the Process symbol and position under the Output symbol. Using the prompts, select delay 5 and click OK. Choose the Output symbol and select turn, output, 1, off. Select the Stop symbol. Select the arrow tool. Click on the first symbol, click on the symbol beneath it. Click on the second symbol, click on the symbol beneath it. Continue until the flowchart is complete. Click on Run. To save your program, click on File and Save and call your program Zebra 1.

Editing a flowchart 1. 2. 3.

Select the Edit tool. Click on ‘Delay 5’ to highlight the box. Use the prompts to clear the box and change to delay 2.

Start

Turn Output 1 on

Delay 5

Turn Output 1 off

Stop

Start

Turn Output 1 on

Delay 2

Turn Output 1 off

Stop

4.

5. 6.

7.

8.

To add an extra Process symbol, place it on the line above the Stop symbol. Select delay 2 and click OK. To put a loop the program, select and erase the Stop symbol in the flowchart. Select the arrow symbol, click on the second delay symbol and then on the first output symbol. Save your program as Zebra 2.

Start

Turn Output 1 on

Delay 2

Turn Output 1 off

Delay 2

Lighthouse mimic 1. 2.

3.

4. 5.

Select the LIGHTHO mimic. Use your Zebra 2 program to make the lighthouse flash on and off in a repeating signal. Next to the flowchart, create another similar flowchart to make the foghorn (Output 2) work. Click run to test your flowcharts together. Save as Lighthouse 1. Start

Start

Turn Output 1 on

Turn Output 2 on

Delay 2

Delay 1

Turn Output 1 off

Turn Output 2 off

Delay 2

Delay 3

Copying a flowchart 1.

2. 3. 4.

An easy way to make another similar flowchart is to copy and edit the original. Select Edit and drag a box around the entire flowchart. Hold the shift key and drag the flowchart to one side. Edit the flowchart to suit your new purpose.

Traffic lights mimic 1. 2. 3.

4.

5. 6.

7.

Go to File and New Select the BRIDLIGH mimic. Create a programme to make the traffic lights with Outputs 1, 2 and 3 work (try not to look at the solution!) It will help to use multiple outputs in the same output symbol. Use the prompts to do this. Save your program as Traffic 1. Have a go at creating another flowchart to simultaneously control Outputs 4, 5 and 6. Save this as Traffic 2.

Start

Turn Output 3 on

Delay 7 Delay 7 Turn Output 2 on

Output 2 on 1 off

Delay 3 Delay 3 Output 1 on 2,3 off

Output 3 on 2 off

Lighthouse on at night Start

1. 2. 3. 4.

5. 6.

7. 8.

Select the lighthouse mimic again. Create this flowchart. To create the YES arrow click on the decision symbol twice. Run the program and click on the sun on the mimic to switch Input 1 on or off. Can you explain how this works? Create a similar flowchart for the foghorn that switches it on in the dark and off in the light. Save this as Lighthouse 2. Create a program for the interior lights to come on at night.

Is Input 1 on NO

Turn Output 1 on

Delay 2

Turn Output 1 off

Delay 2

YES

Burglar alarm mimic 1. 2.

3.

4. 5.

6.

Open the ALARM mimic. Create a flowchart that will activate the siren (output 1) if the pressure pad by the front door (input 3) is trodden on (see example). Next to this flowchart create another flowchart that will activate the siren (output 1) if the bathroom window is open (input 2). Save as Alarm 1. As an extension, build a delay into the programs to give the owner of the house to deactivate the alarm. Save as Alarm 2.

Start

Is Input 3 on YES

Turn Output 1 on

Delay 8

Turn Output 1 off

NO