Musical door bell / Mohd Azuan Abdul Aziz and Roslan Bakar

Abdul Aziz, Mohd Azuan and Bakar, Roslan (2001) Musical door bell / Mohd Azuan Abdul Aziz and Roslan Bakar. [Student Project] (Unpublished)

Abstract

The musical door-bell generates 16 different notes in three seconds and repeats the cycle for about ten seconds when the ‘press switch’ is pushed momentarily. This circuit consists of clock oscillator using the popular timer 1C 555, 4 bit-bmary counter 7493 and digital-to-analogue converter using four resistors. Basic audio oscillator is using a timer and an electronic delay switch. The clock oscillator is construct around IC 555. This clock output is fed to the ‘clock in’ of the 4 bit-binary counters or divide-by-sixteen counter. Whenever the pulse is applied at clock input, it produces a 4 bit-binary equivalent code at its four output lines. A small 8-ohm speaker connected across the output of this audio oscillator produces the musical tones.

Metadata

Item Type: Student Project
Creators:
Creators
Email / ID Num.
Abdul Aziz, Mohd Azuan
98137647
Bakar, Roslan
98133721
Contributors:
Contribution
Name
Email / ID Num.
Advisor
Tajuddin, Taniza
UNSPECIFIED
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials > Semiconductors
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials > Detectors. Sensors. Sensor networks
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Microelectromechanical systems
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Applications of electronics
Divisions: Universiti Teknologi MARA, Pulau Pinang > Permatang Pauh Campus > Faculty of Electrical Engineering
Programme: Diploma Of Electrical And Electronic Engineering
Keywords: Door-Bell, Musical, Electronic
Date: 2001
URI: https://ir.uitm.edu.my/id/eprint/50376
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