Design of IoT-Based Smart Charging Power Supply for Pratima Security

Abstrak

A power supply is essential for the Pratima security system because it serves as the
primary energy source that ensures all components of the Pratima security system can operate
optimally, especially during power outages. This study designs a power supply system with a
smart charging feature for the IoT-based Pratima security system. This system uses an
ESP8266 microcontroller, current and voltage sensors, and is connected to the Telegram
application to provide notifications when the 18650 battery is full. Unlike previous studies that
utilize websites, this system offers a simpler and more efficient monitoring solution via
Telegram. The goal is to maintain the quality of the 18650 battery, prevent overcharging, and
provide a power reserve to keep the security system active. This study uses the Software
Development Life Cycle (SDLC) method with a Waterfall model consisting of 5 stages: analysis,
design, implementation, testing, and maintenance. The results of this study are expected to be
an alternative power supply with a smart charging feature at an affordable price and can be
applied to other IoT devices that require an automatic and efficient charging system.