IoT Based Smart Electricity Energy Meter using ESP8266 & Blynk Application

project Discription
Today we will learn how to make our own IoT Based Electricity Energy Meter using ESP8266 & monitor data on the Blynk Application on mobile. With the current technology, you need to go to the meter reading room and take down readings. Thus monitoring and keeping track records of your electricity consumption is a tedious task.
To automate this, we can use the Internet of Things. As far as we know that The Internet of Things saves time and money by automating remote data collection. Smart Energy Meter has received quite a lot of acclaim across the globe in recent years.
So here We need to select the Node mcu esp8266 wifi module 20*4 Lcd with I2C interface module and PZEM 004T multifunction AC power monitor. It can measure electrical parameter. It is a very popular smart meter used in electrical consumption measurement projects. It is great for measuring voltage, current, active power, frequency, Power factor and energy consumed in KWH. It has Power measurement range 0 ~ 22kW with Voltage Range of 80 ~ 260VAC and Current measurement range of 0 ~ 100A.
we using esp8266 NodeMCU wifi miodule has Arduino like Analog and Digital (D0-D8) pins on its board. It supports serial communication protocols i.e. UART, SPI, I2C, etc.
Using such serial protocols we can connect it with serial devices like I2C enabled LCD display, Magnetometer Gyro meter + Accelerometer, RTC chips, GPS modules, touch screen displays, SD cards, etc. and also its available in market at low cost.
PZEM 004T multifunction AC power monitor can measure electrical parameter. It is a very popular smart meter used in electrical consumption measurement projects. It is great for measuring voltage, current, active power, frequency, Power factor and energy consumed in KWH. It has Power measurement range 0 ~ 22kW with Voltage Range of 80 ~ 260VAC and Current measurement range of 0 ~ 100A
The main part of PZEM 004T module is of SD3004 chip can be measured and thus we can know about the power consumption & total power consumed. We will interface PZEM 004T module with ESP8266 Wifi Module & Send the data to Blynk Application. The Blynk Application Dashboard will display the voltage, current, active power, frequency, Power factor and energy consumed in KWH.
Pzem 004t module is equipped with a TTL serial data communication interface via the serial port, where you can read and set the relevant parameters.
SCL & SDA I2C lcd module are connected of with GPIO pin 5 (D1) and GPIO pin 4 (D2). Vcc is connected to 3.3V of node mcu. If you use +5V power supply module output of power supply Connect Vin pin of node mcu and Vcc of PZEM004T to 3.3 V. The RX and TX from PZEM004T go to serial communications pins TX and RX. Connect the current transformer (CT) and the AC live wires in parallel with the load. The wiring in the AC side must be respected as shown in circuit diagram
Another hardware of our project uses LCDs these lcds are ideal for displaying only characters. 16×4 character, lcd display is an optional At the heart of the adapter is an 8-bit I/O expander chip – PCF8574. This chip converts the I2C data from an Arduino into the parallel data required for an LCD display. These modules are currently supplied with a default I2C address of either 0x27 or 0x3F.

Click here for code : https://drive.google.com/file/d/1oeo8...

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