1. Unit 5E – Controlling Devices
QCA ICT Year 5

2. Lesson One PowerPoint presentation for main teaching input.
Demonstration of flowcharts for devices;
Car park barrier
Zebra crossing
Street lights
Other examples of controllable devices to be printed out and used in activity.

3. Wait for car to go through
Car Park Barrier
Take the ticket
Barrier goes up
Wait for car to go through
Barrier goes down

4. Why is this last arrow important?
Zebra Crossing
Light goes on
Stays on for 2 seconds
Why is this last arrow important?
Light goes off
Stays off for 2 seconds

5. Light sensor checks to see if it is light or dark
Street Lights
Light sensor checks to see if it is light or dark
If it is dark then…
If it is light then…
Light goes on
Light goes off

6. How can you control a TV using the remote?
How does the fridge light come on when you open the door?
How does a lift know where to go?
How do the traffic lights know when to change to red?
How does a level crossing know when a train is coming?
What other devices could you control?

7. How would a Pelican Crossing work?

8. What has to happen to control a lift?

9. How does the light turn on when you open a fridge door?

10. How does a TV remote control change channels and change the volume too?

11. How does a level crossing know when the train is coming?