Application of the melody generator IC BT66 (or UM66).
Application of PNP and NPN type transistors for switching purposes.
Application and implementation of the NE555 timer IC in the astable mode.
Principle involving the use and function of LDRs (Light Dependent Resistors) and their application.
Hands on experience of soldering different components.
Musical Touch Bell-The Musical Touch Bell implemented here can be operated by just bridging the gap between two touch plates by one’s fingertips and requires minimal power consumption. The circuit generates a pleasant musical tone through a melody generator IC, as long as the touch plates are in contact.
Musical Door Bell-Most conventional doorbells available in the market generate melodies for a specific time duration which cannot be programmed or controlled. This can be annoying when a person has responded/answered to it immediately. The musical doorbell (with memory) implemented here is a simple doorbell whose ringing duration can be varied easily. The circuit generates a pleasant musical tone for preset time duration after the toggle switch is pressed.
Water Level Indicator-The purpose of the water level indicator is to caution a person that a water tank has been filled up to a particular level. This circuit exploits the simple fact that water is a good conductor of electricity. The system is capable of indicating the water level in two ways- visual (by the means of an LED) and audible (by the means of a sound generated by a piezoelectric buzzer).
Burglar Alarm-The burglar alarm implemented here is a simple circuit that automatically sounds an alarm whenever an intrusion is detected. The system is implemented by installing a simple sensing loop, which is basically a thin copper wire. This way, the loop is both invisible and brittle enough to break easily and initiate the alarm mechanism. At the time of an intrusion, the loop breaks and this causes the loudspeaker to generate a continuous and loud alarm sound.
Magic Eye- It can be used for a variety of applications like a burglar alarm, smoke detector or an automatic guest indicator. All these applications make use of the Light Dependent Resistor (LDR) which is installed and implemented differently in each case.
Soldering Kit-Contains basic tools for soldering.
A complete Solution Gift :- It contains 5 electronic Project Kits and a soldering Kit to make them.Gift Box have one each of the following kits (A) Musical Touch Bell, (B) Musical Door Bell (C) Water Level Indicator (D) Burglar Alarm (E) Magic Eye (F) Soldering Kit.
Brand: Kits'n'spares, Marketed by: Kits'n'spares