We are all familiar with electricity energy meters, which are installed in every home or office to measure electricity consumption. Many of us are concerned about our high electricity bills at the end of each month, and we must periodically check the energy meter. But what if we could monitor our electricity consumption from anywhere in the world and receive an SMS/E-mail when it reaches a certain threshold? Here, we are constructing an IoT-based Energy Meter Project. In this project, we build a Smart Electricity Energy Meter with Arduino and an ESP8266 Wi-Fi module that not only sends you an SMS/Email of your electricity bill, but also allows you to monitor your energy usage at any time and from anywhere in the world. We used a Current Sensor ACS712 to measure energy consumption. Arduino UnoESP12/NodeMCUAny AC ApplianceACS712-30Amp Current sensorPCB