Project suggestions for your KAT. Magic candle This circuit is a fun project which switches a light on when light shines on the ‘magic eye’. Then, if.

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Presentation transcript:

Project suggestions for your KAT

Magic candle This circuit is a fun project which switches a light on when light shines on the ‘magic eye’. Then, if you wave your hand over the ‘magic eye’ the brightness of the light globe changes.

Mini-metronome This circuit produces a beat which can be heard through a speaker. The beat can be varied from one beat every two seconds to ten beats every second. In order to obtain a sound that can be clearly heard a reasonably sized speaker box is required. This project can be used by a person practising a piano or other musical instrument. This simple electronic metronome can take the place of the mechanical metronome

Amplifier This amplifier can be used to amplify signals from a MP3 player. It can also be used to increase the volume of a variety of other circuits such as the mini alarm. A volume control can be added across the input (AB). This will help prevent distortion of the output caused by overdriving of the amplifier.

Soil moisture checker Pot plans are often over watered. This project will allow you to work out when plants should be watered and how much water is required in order to produce the maximum growth.

Mini alarm This circuit produces continuous sound. The frequency or tone of this sound can be varied to suit the occasion. The volume can also be varied. With the use of an appropriate switch, like a push off switch, this project can be set up as an alarm for a bedroom or for a personal desk drawer. A push off switch is one similar to those used on a fridge door or a car door. By setting up a special touch switch you could also use this project to practice the morse code. It could also be used as a reminder alarm to a motorbike rider if he or she left their turning indicators on. In this case the project would be powered by the positive power lead at the indicator flasher unit.