Control Technology START What is control technology? What is this diagram called? In which program have you used these before? Lets Go!

Lesson Objectives To understand – what control technology is – What flow charts are, including their individual components – How flow diagrams are used everyday in control technology systems

Control Technology Control technology is allows devices to be programmed to respond to different circumstances A good example of this is a kettle. A sensor will record the temperature of the water. When the water is boiling, the kettle automatically turns itself off. Can you think of any other examples?

Prior Learning You have already studied Control Technology in year 7 using Crocodile You should already know how to use flow charts

Flow Charts Start/end Process Decision – Yes/no? Input / Output Flow Terminator Process Decision Data Arrow

START Switch kettle on Boil water Is the water at boiling point? End Y N Terminator – Starts the flow diagram Input/Output – If you are doing something to trigger a reaction (INPUT), or the reaction that occurs (OUTPUT) Process: When an action is being carried out. Decision: Asks a question and has 2 responses (YES/NO) Terminator – Ends the flow diagram

Task 1: Flow Chart Symbols Go to Common K>ICT>Year 8>FLOWOL> Lesson 1 Open and Save the file called “Flow Chart Symbols”

Answers SymbolNameDescription Terminator Starts and stops the flow chart Process When an action is being carried out Decision Asks a question and has 2 responses (YES/NO) Input / Output If you are doing something to trigger a reaction (INPUT), or the reaction that occurs (OUTPUT) Arrow Shows the flow of data in the flow diagram

Flowol Go to Start>All Programs>Flowol We will be using this program to simulate how control technology is used in everyday life

Mimics In Flowol there are several mimics that you can use. These are simulations that we can control using flow diagrams. Click USE MIMIC >Zebra Crossing

This is the mimic/simulation The different inputs and outputs that we can control appear here. In this simulation there is only one light.

Task 1: Drag and drop the symbols on the left to make the light flash on and off.

Task 2: What is wrong with the simulation? How can we make it better? 1.Add a delay between the flashes 2.Loop it around so it happens continuously.

Extension: Save your zebra crossing in your Unit _ Folder Open a new flowol document and open the Crossing Patrol mimic. This time you have 2 outputs to control. Try and make them flash on and off simultaneously