A Coin Acceptor – Mobile Battery Charging using Solar Panel 
Ammu Anna Mathew1, Anoop J R2, S. Vivekanandan3
1Ammu Anna Mathew, Research Scholar, School of Electrical Engineering, Vellore Institute of Technology, Vellore, India.
2Anoop J R, M-TECH in Electrical Machines, APJ Abdul Kalam Technological University.
3Dr. S. Vivekanandan*, Associate Professor, School of Electrical Engineering, Vellore Institute of Technology, Vellore, India.
Manuscript received on March 28, 2020. | Revised Manuscript received on April 25, 2020. | Manuscript published on April 30, 2020. | PP: 1688-1692 | Volume-9 Issue-4, April 2020. | Retrieval Number: D8907049420/2020©BEIESP | DOI: 10.35940/ijeat.D8907.049420
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: A mobile phone charging system based on a coin acceptor system connected with solar panel and battery system is a great service to the public at open places. The coin acceptor thus also provides a great profit to the provider and we can install this in any places easily where people gather more such as railway stations, bus terminals, malls, etc. as this system is portable. The energy is obtained from solar panel, so the running cost is also very low. The system is designed with ARDUINO ATMEGA 32 microcontrollers, thus the input pulses while coin acceptor is active is sent to the battery module and mobile phone can be charged. The system will work even in cloudy days because a battery is also included in it.
Keywords: ATMEGA 32 microcontroller, battery, coin acceptor, PV panel, solar panel