The Coin Based Mobile Charging System Based On Atmega 328p
- May 21, 2019
- Posted by: RSIS
- Category: Electrical and Electronics Engineering
International Journal of Research and Scientific Innovation (IJRSI) | Volume VI, Issue V, May 2019 | ISSN 2321–2705
The Coin Based Mobile Charging System Based On Atmega 328p
K. R. Khakal1, V. R. Pagire2, R. R. Korde3
1,2,3E & TC, MITCOE, Maharashtra, India
Abstract— The coin based mobile charging system charges the mobile phone when the valid coin is inserted. So the coin acceptor (IR sensor) used recognizes the coin inserted and signals the ATmega 328p for further action.When a coin is inserted, it signals the ATmega328p and starts charging the mobile phone providing a 5V power supply through the charging slot. The ATmega328p starts a reverse countdown timer to display the charging time left for that mobile phone. Further the user adds another coin, the ATmega328p adds to the currently remaining time and once again decrements the countdown.
Keywords— ATmega328p, IR sensor, SPDT relay, Piezo Buzzer, Transformer
I.INTRODUCTION
The use of mobile phones is increasing day-by-day in many fields. People use cell phones for many purposes like online bank transactions, to keep in touch with business associates, with family members, conducting business and also in order to have access to the telephone in case of any emergency. Some people even carry different mobile phones for different purpose like one for business and other for personal use just to avoid the draining of battery in case of emergency business issue. Cell phones provide the user with the sense of security. However the uses of cell phones go beyond security.
The main purpose of mobile charger is to reduce the wastage of electric power which often arises due to the negligence of user.
The device which is designed by us has some relevance to the power bank which is also used to charge the cell phones by the people.The power bank is basically a portable device that can supply power from its built-in battery through a USB port.
The difference between them is that power banks can be carried by the user anywhere they want and charge their cell phones. Whereas this device is installed in public places and can be used by anyone by inserting the coin.
