Smart Mobile Phone Charging Stations for Public Service as Smart Cities Component

The need to charge a smartphone is because the battery on a smartphone is designed not to have long enough power, especially the need for the smartphone for browsing using a data plan. Mobile phone charging stations in public areas are generally open, and some have also implemented a manual lock on each charging box. Some boxes lose their keys due to someone's carelessness, resulting in the box being unable to be used by others. This research aims to make a prototype mobile charging station equipped with a fingerprint security system. The method used in this research is a case study by making a prototype of a mobile phone box charging station. The security system in the charging station author utilized Arduino Mega connected to the solenoid controlled by fingerprint to open and lock each box. The device successfully registered each user's fingerprint based on the results of creating a prototype of a security system using a fingerprint. The device can read the correct fingerprint to open and close the solenoid in the box. In the case of unrecorded or mismatched fingerprints, the device will issue a warning and refuse to allow access to open and close the box. As a result, this security system is ideal for use in a prototype mobile charging station.