Door bell chime / Nur Atirah Mazlan, Nurnasihah Md Wazali & Nursyakilla Rositi

• Main Authors: Mazlan, Nur Atirah, Md Wazali, Nurnasihah, Rositi, Nursyakilla
• Format: Student Project
• Language: English
• Published: 2015
• Subjects: Instrumental music; Electric apparatus and materials. Electric circuits. Electric networks
• Online Access: https://ir.uitm.edu.my/id/eprint/66097/1/66097.pdf; https://ir.uitm.edu.my/id/eprint/66097/

Nowadays, almost every house has a doorbell to communicate each present. Many type of doorbell are available in market but rarely find for disabled peoples. For example, if the person is deaf it is difficult for them to know when the visitor is coming. Next problem is when people come at night and c...