Power Consumption Using NodeMCU Controller

Power Consumption Using NodeMCU Controller

Suresh.S

Department of Computer Science and Engineering

SRM Institute of Science and Technology, Ramapuram, Chennai, Tamilnadu, India

B.S.SanjayKuumar



R.Pritika



Vinetha .J



ABSTRACT

Introduction of the node MCU controller for power consumption in our homes provides us a way to consume energy and electricity in the most

efficient way possible. There are many advantages for the node MCU controller and this helps to reduce the electricity bill. Here we use the

main components like the voltmeter, current meter and the relay to achieve what we want. We also use IOT to make things much more easier for

us. Here each load, that is each electrical appliances are monitored by the current and voltage meter and it is also stabilised using the relay. All

devices is rechanging by controllable devices to make things easier for us.

KeywordsInternet of Things (IoT), NodeMCU (Node MicroController Unit), Integrated Circuit (IC), System on Chip

(SoC),Power Management Unit (PMU), Voltage Transformer, Current Transformer.

I.INTRODUCTION

The progress of automation technology leads to a simple and uncomplicated life .The manual systems are now less in use and are

getting replacement by automation technology which is also feasible.Smart home is a typical application scenario of Internet of

Things (IoT) technology.Automation technology is adaptable and user friendly interface which allows for easy control of

electrical appliances by means of internet. The NodeMCU interfaced with internet to get user comments. Researches anticipate

that the potential of standing energy is not enough for the future need without new energy source.To avoid this a system can be

created tu use power effectively.The term power consumption in electrical engineering refer electrical energy per unit time. The

national el Power consumption monitoring system measures the usage of power of each of the loads individually. This system is

designed around NodeMCU micro-controller board. If the user consumes more energy beyond the limit they will get notified and

fine will be added If still consumption is not reduced . It also used to detect the malfunctioning device used in households that

consumes unusual amount of energy.

II .PROPOSED SYSTEM

Power consumption is very important for us . Here we have achieved to conserve power with the help of the Node

MCUcontroller. Here each load is connected to the Node MCU and the current being used by each load is measured if at anytime

the consumption of power goes beyond the specified level they will be notified and if it still continues they will be fined . IOT

plays a major role here. It is also used for detecting faulty electrical devices that’s consuming unusual amount of power and we

will be notified about that.

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III. Literature Survey

Reference [1] This paper refers to avoid the water wastage in the irrigation process using the IOT and node MCU to act as a micro

controller and as a server.

Reference [2] In this paper,there is a discussion about electrical device which saves energy and also it is also a surveillance and

control system which is based on internet of things.

Reference [3] This paper refers to using a flame sensor using an Arduino board to determine the presence of fire which also

calculates the fire intensity caused by a Fire.It is used in common places such as houses,offices,and other places.

Reference [4] This paper refers to include functionality of node esp8266 are connected with either of above given house

application like fan, light, water pump, gardening with help of coding and hosting online with web server.

Reference [5] This paper refers to Our system will be useful to maintain physical distance between people, and it gives best

efficiency compare to previous algorithms.

Reference [6] This paper refers to system which identifies and monitors cardio-vascularpulse wave remotely.This project works

based on NodeMcu which comes with an inbuilt wi-fi module and an easypulse sensor.

IV.BLOCK DIAGRAM

Fig. 1 Block diagram

Hardware tools:

• Nodemcu

• Current sensor

• Voltage sensor

• Potential transformer

• Loads

Software tools:

• Arduino IDE

• Embedded C

V. MODULES

BLOCK DIAGRAM DESCRIPTION: • We are using the Node MCU controller for power consumption. • All the loads are

connected to the node MCU • We are able to read the current values through an external ADC IC. • All the loads are connected to

it using relays. • The relays are used for stabilising when the load takes up lesser or more power than needed. • Relays and the

other loads are connected to GPIO pins in nodemcu. • The Node MCU has a wifi chip.

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Where to use ESP8266-01

We have to plus the ESP into the USB adapter this should then be plugged into the computer and we must switch it to

programming mode. This is very convenient as it very useful and cheap wifi module for controlling devices with the help of

internet. This works with the micro-controller NodeMCU and the internet of things has just been made very easy and cheap too.

So if weuse this module we will also be able to know how much current a particular appliance ends up taking and also if any

appliance is taking more than its needed. We will also be able to control the power of the appliances for example if we leave the

house forgetting to switch off certain appliances we will be able to know with the help of this module and we will also be able to

switch it off. This makes things very easy for us . Here it is programmed using Audrino IDE which is very user friendly.

Fig.2 Node MCU

5.1 Current Transformer (CT)

Current Transformer (CT), is connected to the node MCU controller and each load in the house in connected to the input pins of

the controller .So when any electrical appliance is used the current transformer which is also connected to the node MCU

controller will measure the current being used by the particular load. The current transformer replicates the primary wave in the

secondary welding and gives us the current that’s being used. It basically produces other system of electric welding that directly

equal to primary system of electric. So the alternating current produced in the secondary winding will be measured using an

ammeter and through this we will come to know the current consumed by each load connected to the controller.

Fig.5.1 Current transformer

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5.2 Voltage transformer

Voltage transformer get used in electrical power system for stepping down the system voltage to a safe value which can be fed to

low rating meters and relays. It can be measured by the ordinary low voltage instrument like a voltmeter wattmeter and watt

hours meters. Since, voltage has the capacity to reduce the values from higher to lower it correctly balance that is maintains the

electric system of voltage perfectly.

Fig.5.2 Voltage transformer

5.3 Potential transformer

The voltage transformer which is connected to the Node MCU is also connected to the potential transformer which is also called

as the voltage step down transformer. They are mostly used in metering circuits and relays. The main purpose of this transformer

is to step down the voltage value that is got from the load to a safe limit value so that it is easier for an ordinary low voltage

instrument reader such as voltmeter, multimeter, wattmeter etc. to read the value easily.

Fig.5.3Potential transformer

5.4 ARDUINO IDE:-

The Arduino Integrated Development Environment is a platform application which can be used in windows Mac OS and linux to

write code in c and c++. Here we are using the Node Mcu which is an Arduino compatible board so we can use the arduino IDE

for writing and uploading programs into controller boards which are compatible with arduino. It is a form of an editor and

programs which are written in this platform are called sketches and are saved in the extension .ino. it has five menus they are

File, Edit, Sketch, Tools, Help. The Node MCU is connected to the computer through the usb port. We write down the code on the

arduino IDE, so when the controller board is connected through the usb the written code is uploaded onto the controller and

executes it. Through this code the controller will be able to interact with the inputs and outputs.

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5.5 Cloud

In this project we are using the cloud to store the recorded values from the loads. These values can then be used by us to pe

whatever functions that we need. The Arduino IoT cloud helps us to create great things easily. It is especially very useful f

automation and power consumption. So any change made with the code will automatically be updated to the cloud.

Fig.6 Working of cloud and ThingSpeak

All the required components are connected to the Node MCU. The circuit consists of the load, current sensor, voltage sensor,

potential transformer, relay and the ADC/IC. The Node MCU is connected to the internet through the wifi and is connected to t

computer using the USB port. Once the circuit is connected to the computer we can set up the Arduino IDE to perform tasks by

writing the code. The Arduino IDE and the Node MCU is connected to the wifi so the values recorded by the input pins of the

controller will be saved in the particular variables as written in our code and that will be stored in the cloud.

6.1 ThingSpeak Io Platform

Things speak is an IoT analytic platform which allows you to analyse and visualise

protocol over the internet is used by this platform. They use the MATLAB analytics on the data received from the hardware

device. Firstly we have to go to things speak website and create an account. Then we hav

the Node MCU and the arduino IDE we will be able to write the code to save the values that we want to monitor. So in this cas

we want to achieve power consumption so we will save the values of voltage, current, unit

stored in the cloud and we will be able to access this data. Once the variables are created we will use the channel name that

created and the API key to upload these variable values into things speak . We’ve created

these fields represent the streams of data that we want to analyse and visualise in this case we are choosing voltage, curren

and power. Once we’ve done all that this will be our final result.

In this project we are using the cloud to store the recorded values from the loads. These values can then be used by us to pe

whatever functions that we need. The Arduino IoT cloud helps us to create great things easily. It is especially very useful f


Fig.6 Working of cloud and ThingSpeak

VI Implementation and Results All the required components are connected to the Node MCU. The circuit consists of the load, current sensor, voltage sensor,

potential transformer, relay and the ADC/IC. The Node MCU is connected to the internet through the wifi and is connected to t

Once the circuit is connected to the computer we can set up the Arduino IDE to perform tasks by


will be saved in the particular variables as written in our code and that will be stored in the cloud.

Fig.7 Module diagram

Things speak is an IoT analytic platform which allows you to analyse and visualise data that is stored on there cloud. The HTTP


device. Firstly we have to go to things speak website and create an account. Then we have to create a new channel. So by using

the Node MCU and the arduino IDE we will be able to write the code to save the values that we want to monitor. So in this cas

we want to achieve power consumption so we will save the values of voltage, current, unit and power to a variable this will be

stored in the cloud and we will be able to access this data. Once the variables are created we will use the channel name that

created and the API key to upload these variable values into things speak . We’ve created the channel, there will be 8 fields so

these fields represent the streams of data that we want to analyse and visualise in this case we are choosing voltage, curren

and power. Once we’ve done all that this will be our final result.

In this project we are using the cloud to store the recorded values from the loads. These values can then be used by us to perform

whatever functions that we need. The Arduino IoT cloud helps us to create great things easily. It is especially very useful for home


All the required components are connected to the Node MCU. The circuit consists of the load, current sensor, voltage sensor,

potential transformer, relay and the ADC/IC. The Node MCU is connected to the internet through the wifi and is connected to the

Once the circuit is connected to the computer we can set up the Arduino IDE to perform tasks by


will be saved in the particular variables as written in our code and that will be stored in the cloud.

data that is stored on there cloud. The HTTP


e to create a new channel. So by using

the Node MCU and the arduino IDE we will be able to write the code to save the values that we want to monitor. So in this case

and power to a variable this will be

stored in the cloud and we will be able to access this data. Once the variables are created we will use the channel name that we

the channel, there will be 8 fields so

these fields represent the streams of data that we want to analyse and visualise in this case we are choosing voltage, current, unit

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Fig.8 Screenshot of test cases of various data streams

Once the code is completed all the values and the data will be stored on the cloud that will then be accessed by things speak

the API key and channel name and we will be able to see the output on the website this can also be monitored by us and can b

made public or private. After ThingSpeak analyses the data the output will be uploaded on the cloud and that will then be

retrieved and shown on the Arduino IDE

Fig.9 screenshot of Arduino IDE final result

The resultant is very effective as the voltage and the current sensor. Both the voltage and current sensor

together is coded for transmitting and receiving and to make sure the war system is working perfectly. It shows that if the v

and current will be very effective only if the setup of the module is placed and coded correctly. Arduino is the very main

component that connects all of the sensors, voltage and current module and also it performs as a hub and that is how it is in

to perform. This method is the easiest way of calculating that is measuring the energy produces by the electrical appliances. It

able to show how the electrical system appliances is controlled through through internet. And also sends the notification t

e – mail and twitter and other social networks to users.

This IOT based SEM system is been used for deducting the system energy also the amount . It also shows the basic need

electrical system appliances. Cost of the money will be deducted that is will be reduced for the electric products such as wa

machine, dishwasher and mixer grinder etc. This all is done by operating these devices with good flexibility that can

time in the day since, the power costs for all the items of devices are low and the voltage, power and energy consumption val

are maintained in the correct level. Energy consumption reports can be easily drawn up for each and every single d

Screenshot of test cases of various data streams

Once the code is completed all the values and the data will be stored on the cloud that will then be accessed by things speak

the API key and channel name and we will be able to see the output on the website this can also be monitored by us and can b


Fig.9 screenshot of Arduino IDE final result

VII RESULT AND DISCUSSION:


together is coded for transmitting and receiving and to make sure the war system is working perfectly. It shows that if the v

nd current will be very effective only if the setup of the module is placed and coded correctly. Arduino is the very main

component that connects all of the sensors, voltage and current module and also it performs as a hub and that is how it is in

perform. This method is the easiest way of calculating that is measuring the energy produces by the electrical appliances. It

able to show how the electrical system appliances is controlled through through internet. And also sends the notification t

mail and twitter and other social networks to users.

VIII CONCLUSION :

This IOT based SEM system is been used for deducting the system energy also the amount . It also shows the basic need

electrical system appliances. Cost of the money will be deducted that is will be reduced for the electric products such as wa

machine, dishwasher and mixer grinder etc. This all is done by operating these devices with good flexibility that can

time in the day since, the power costs for all the items of devices are low and the voltage, power and energy consumption val

are maintained in the correct level. Energy consumption reports can be easily drawn up for each and every single d

Once the code is completed all the values and the data will be stored on the cloud that will then be accessed by things speak using

the API key and channel name and we will be able to see the output on the website this can also be monitored by us and can be



together is coded for transmitting and receiving and to make sure the war system is working perfectly. It shows that if the voltage

nd current will be very effective only if the setup of the module is placed and coded correctly. Arduino is the very main

component that connects all of the sensors, voltage and current module and also it performs as a hub and that is how it is intended

perform. This method is the easiest way of calculating that is measuring the energy produces by the electrical appliances. It is

able to show how the electrical system appliances is controlled through through internet. And also sends the notification through

This IOT based SEM system is been used for deducting the system energy also the amount . It also shows the basic needfor the

electrical system appliances. Cost of the money will be deducted that is will be reduced for the electric products such as washing

machine, dishwasher and mixer grinder etc. This all is done by operating these devices with good flexibility that can be used any

time in the day since, the power costs for all the items of devices are low and the voltage, power and energy consumption values

are maintained in the correct level. Energy consumption reports can be easily drawn up for each and every single device.

PAIDEUMA JOURNAL


ISSN NO : 0090-5674


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Power Consumption Using NodeMCU Controller