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SYSTEM DIAGRAMS FOR GCSE PROJECTS
The following diagrams show examples of project development using system diagrams (currently encouraged by examiners i.e. for the ELECTRONIC PRODUCTS exam project in KS4)
DRAWER ALARM PROJECT
BRIEF To design and make an alarm to fit inside a drawer and which will sound if the drawer is opened.
Evaluation Fits brief, but difficult to place into drawer without triggering alarm, and also easy for burglar to disarm by covering light sensor.
Evaluation Fits brief better, in that it now continues to sound for a set time after the light is blocked out. Still difficult to place in drawer.
Evaluation This version is much easier to place in the drawer because the first time delay module gives a short time between switch on and the circuit becoming activated.
The above example is a good way of showing an examiner how you develop an idea for a project circuit.
I have included the sir-kit module numbers of the kits you could use to prototype the example project.
If you like this page e-mail me at [email protected] or make suggestions and I could add more examples at some time in the future.