Smart Electric Billing System with RFID

Abstract

The purpose of this study is to create an electric billing system based on Wi-Fi microcontrollers by recording the amount of energy used by users. ESP32 is used to read values from sensors, as well as send data to the Blynk server and local database. Blynk server is used to store the results of sensors to be displayed on the Blynk app and control the system remotely. The results show that the system can detect users precisely 99.56%, can disconnect the voltage after use, and all usage data can be displayed in the Blynk app and desktop app.