Rancang Bangun Monitoring Tegangan Listrik Rumah Tangga Berbasis NodeMcu ESP8266 Menggunakan Smartphone

Abstract

The development of modern residential types around campus has caused problems in monthly electricity bills. In general, the cost of electricity bills for rooms is determined based on the total bill on the electricity meter account divided by the number of rooms. Therefore, a tool is needed that is able to monitor the use of electrical energy and is able to limit the current usage of the load, even though the user of electrical energy is not at home. Of course, to make this tool requires a voltage sensor, current sensor, relay, and NodeMCU. The voltage sensor uses the ZMPT101B which functions to read the voltage value, the sensor functions to limit the current value in a way when the current sensor reads the current value on the load and then the author regulates the program by limiting the current that may enter. This monitoring tool functions to process data read from the voltage sensor and current, and NodeMCU as a WIFI module that functions to send data to the server so that it can be viewed with an internet network. The test results were measured for 4 hours on iron loads, fans, televisions, laptop cases, HP, using the ZMPT101B error respectively of 0.32%