Table of Content
This section enlists various hardware and software componets used in the project. Similarly, when the user presses on the ‘On’ button displayed on the app for the device 2, the fan is switched on. When the user presses on the ‘On’ button displayed on the app for the device 1, the Buzzer is switched on. This Buzzer can be switched off, by pressing the same button again. Line Follower Robot with PID control, using an Android device to easily setup the main control parameters for better and fast loop tuning. Ception of Smart Home Technologies to Assist Elderly People" 4th In- ternational conference on software, Knowledge information manage and applications .
The third section programs the serial receive complete interrupt and thus whenever a serial command is received from the android client, it processes it here and actuate the command. This is again an infinite procedure and microcontroller keeps on sensing the arrival of new command. This paper presents a digital method for controlling these devices in a form that is very flexible and can be used with Bluetooth, Microprocessor, PC enabled or otherwise automated and Smart Homes and Industries. Possible developments of Bluetooth wireless technologies are discussed and the hardware for devices and software for the considerations of a home automation system are described and validated by simulating in the Bluetooth home network.
IEEE Account
A Smart phone is a mobile phone based on a mobile operating system, with more advanced computing capability and connectivity than a feature phone. Android is a software stack for mobile devices that includes an operating system, middle- ware and key applications. Android, by simple definition, is an operating system for many mobile phones. Android is a customizable platform that can look and feel very different on every different handsets.
You can also program your motion sensor to raise an alarm if it detects a motion. Here you can manually turn ON/OFF each appliance individually or can simultaneously switch all ON/OFF in one go. The schematic is designed in the schematic editor and the board is designed in the board editor.
Projects
With the rapid increase in the number of users of internet over the past decade has made Internet a part and parcel of life, and IoT is the latest and emerging internet technology. Internet of things is a growing network of everyday object-from industrial machine to consumer goods that can share information and complete tasks while you are busy with other activities. Wireless Home Automation system using IoT is a system that uses computers or mobile devices to control basic home functions and features automatically through internet from anywhere around the world, an automated home is sometimes called a smart home.
Home automation devices include X10, Insteon, UPB, Z-wave, Crestron, Lurton-RA, PLC, etc. At this section we will control the home temperature automat- ically by using a special temperature sensor which is the LM35 sensor is used. It has an output voltage that is proportional to the Celsius temperature. It has low self heating capability, suitable for remote applications, low cost due to wafer level trimming, operates from 4 to 30v, low impedance output in this case. To develop interactive objects, taking inputs from a variety of switches or sensors, and controlling a variety of lights, motors, and other physical outputs. Arduino projects can be stand- alone, or communicate with software running on your com- puter .There are many other microcontrollers and microcon- troller platforms available for physical computing.
Smart Home Lighting Control Systems
These can be found in mp3 players, gaming devices, industrial equipment, and household appliances. To achieve this, the Android smartphone acts as a transmitter and sends on or off commands to the receiver where loads are connected. So, by using wireless technology, we can operate the remote switch on the transmitter and the loads can be turned on or off remotely. The main heart of the project that do all data processing and decision making is the microcontroller.
If the sleep mode is activated and motion is detected or someone open the door, the alarm fires and alert the user. The project Smart Home Automation, demonstrates a system that can be integrated into a home/building’s electrical system and allows one to wirelessly control lights, fans, and turn on or off any appliance that is plugged into a wall outlet. The system can be controlled from a Bluetooth or Wi-Fi enabled device such as a mobile phone or laptop, while a microcontroller powered box act as the server. Thus the installation cost and hardware cost is kept to a minimum as most users already own the requisite hardware such as a mobile phone and desktop PC. Also, there are many disabled and aged people who always depends on others for their basic necessities. Serial port Bluetooth module have a Bluetooth 2.0+EDR , 3Mbps modulation with complete 2.4GHZ radio transceiver and baseband.
There are five types of sensors used in the project those are being directly interfaced to the microcontroller. To sense the light intensity we use two LDR sensors that is light dependent resistors interfaced to the ADC input of the microcontroller. One pin of the LDR is connected to Vcc via a 330K resistor and other tied to ground.
It is possible to vary the intensity of light and speed of fan by using a number of types of dimmers. Modern dimmers are built from silicon controlled rectifier instead of variable resistor, because they have higher efficiency. Since silicon controlled rectifier switches between a low resistance “ON” state and a high resistance “OFF” state, it dissipates very little power compared with the controlled load. Dimmer circuit is based on SCR control circuit which is used in lightning control and fan speed control. This section mainly discuss about the hardware construction of mai control board.
The Arduino is connected to the main PCB which has five relays as shown in the block diagram. These relays can be connected to different electronic devices like lights, television, fan, etc. A Bluetooth dongle or a standard Wireless Access Point is used to provide connectivity between the server and the mobile device. The system is capable of detecting when the user enters or leaves the room by measuring the change in environmental thermal equilibrium, and can accordingly turn on or off appliances such as lights and fans. The power supply for each appliance is wired through an electromechanical relay. A number of relays are used depending on the number of appliances to be controlled.
In addition to this, the above paragraph provides a list of some of the project ideas of home automation systems as well. It is possible to develop the home automation system by using different technologies such as Arduino, Zigbee, GSM, WiFi, DTMF, and by using different controllers like PLC, SCADA, etc. We hope that you might have received some deep insights about this topic and a better understanding of such automation systems or android based projects. Furthermore, give your valuable suggestions and feedback in the comment section below. This system is useful for the elderly and physically handicapped people as they face difficulties while operating the loads. So, with this Android-home-control system, they can easily operate the loads with portable Android mobile phones.
All of these tools take the messy details of microcontroller programming and wrap it up in an easy-to-use package. Arduino is also simplifies the process of working with microcontrollers, but it offers some advantage for teachers, students, and interested amateurs over other systems. The block diagram below shows the design of Android-based home-appliance control that is implemented by using 8051 microcontroller. This circuit consists of some major blocks like power supply, Bluetooth, microcontroller, relay driver and loads, which are explained below. Building of this android-based home automation is a simple concept as you can implement this in your home by using cost-effective products like microcontroller and sensors as Do It Yourself project.
This project can provide the facility of monitoring all the appliances with in the communication range through Bluetooth. But after login, it only displays the main screen of turning on and off the appliances. The settings option does not appear where i can connect to the bluetooth. Basic4android language is similar to Visual Basic language with additional support for objects.Basic4android compiled applications are native Android applications, there are no extra runtimes or dependencies. Unlike other IDEs Basic4android is 100% focused on Android development. Basic4android includes a powerful GUI designer with built-in support for multiple screens and orientations.
thoughts on “Bluetooth based home automation system using android phone”
The main objectives of the Smart Home Automation System are to provide a low-cost solution to minimize the energy consumption, provide support and comfort, and make life easier. The proposed system does not require a dedicated server PC with respect to similar systems and offers a novel communicat ion protocol to monitor and control the home environment with more than just the switching functionality. We can replace Bluetooth by GSM modem so that we can achieve device controlling by sending SMS using GSM modem.
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