This document describes a proposed home automation and security system using wireless networks. The system would allow users to remotely control appliances and security systems in their home using a cell phone interface. Users would send authenticated SMS messages with commands to a microcontroller-based control unit in their home. This would enable functions like turning lights and appliances on/off, adjusting HVAC settings, or enabling/disabling security systems from anywhere. The system aims to provide a simple, low-cost solution compared to existing internet-based options.
This document is a project report submitted to Rajasthan Technical University for a Bachelor of Technology degree. It outlines the design of an auto dialer home security system using a microcontroller, GSM modem, and sensors. The system is designed to detect intruders or fires using infrared and fire sensors, and then send an SMS alert to a user's phone number through the GSM modem. The report describes the basic design criteria, components used including the AT89C2051 microcontroller and GSM modem interface, and sensor modules for infrared and fire detection.
Dtmf based appliances control system for rural and agricultural applicationsSa Saikiran
This document describes a DTMF-based system for remotely controlling appliances in rural and agricultural applications using a mobile phone. The system uses a DTMF decoder, microcontroller, and relays to operate devices when DTMF tones from a phone are received. It allows controlling electrical devices like bulbs and motors from anywhere through phone. The system has applications in industries and homes to control devices without being physically present. It saves electricity and provides wireless control, though it cannot display status and anyone knowing the number can access appliances. The project can be enhanced with high voltage control and remote monitoring with a camera.
This project presentation summarizes a home automation system called HomeNet that allows control of household appliances and security systems over the internet, PC, or mobile device. The system uses a central microcontroller connected to devices via Zigbee, WiFi, and Bluetooth. It includes a GUI interface on PC accessed via USB, LAN, or WLAN. The system also has a web-based and mobile interface for remote control. All programming is done in C, PHP, Java, and MATLAB to allow automated control and feedback of devices from anywhere.
This project aims to design a home automation system that allows users to remotely control and monitor home appliances like lights, fans, AC, etc. using a cell phone. It uses a DTMF module and relays to control the appliances circuitry. The system receives commands from a mobile phone through DTMF tones and operates the appliances accordingly. It provides benefits like saving time, reducing costs, and increasing security and convenience. The document discusses the need for automation, working of DTMF signals, cellular communication technologies considered, system requirements including hardware and software, and programming steps to control appliances remotely.
This document describes a project to control industrial/agricultural loads wirelessly using cell phones. The receiving phone decodes DTMF tones from the sending phone using a decoder chip. The output is fed to a microcontroller which controls relays and loads. A power supply regulates voltage for the microcontroller and other ICs. Relay driver chips interface the microcontroller to the relays. The project allows remote control of loads from any location using basic cell phones.
This document describes a DTMF-based home appliance control system that allows wireless control of devices in a home using a user console with numbered keys. The system uses a DTMF decoder, microcontroller, and wireless transmitter and receiver to encode and transmit user selections via DTMF signals and control appliances accordingly. Key components include an AT89S52 microcontroller, MT8870 DTMF decoder, relays, LEDs, buttons, and other basic electronic components. When a key is pressed, the DTMF signal is encoded and transmitted to the receiver, then decoded by the microcontroller to trigger the correct appliance, allowing remote control of devices like lights and appliances from anywhere.
This document is a project report submitted to Rajasthan Technical University for a Bachelor of Technology degree. It outlines the design of an auto dialer home security system using a microcontroller, GSM modem, and sensors. The system is designed to detect intruders or fires using infrared and fire sensors, and then send an SMS alert to a user's phone number through the GSM modem. The report describes the basic design criteria, components used including the AT89C2051 microcontroller and GSM modem interface, and sensor modules for infrared and fire detection.
Dtmf based appliances control system for rural and agricultural applicationsSa Saikiran
This document describes a DTMF-based system for remotely controlling appliances in rural and agricultural applications using a mobile phone. The system uses a DTMF decoder, microcontroller, and relays to operate devices when DTMF tones from a phone are received. It allows controlling electrical devices like bulbs and motors from anywhere through phone. The system has applications in industries and homes to control devices without being physically present. It saves electricity and provides wireless control, though it cannot display status and anyone knowing the number can access appliances. The project can be enhanced with high voltage control and remote monitoring with a camera.
This project presentation summarizes a home automation system called HomeNet that allows control of household appliances and security systems over the internet, PC, or mobile device. The system uses a central microcontroller connected to devices via Zigbee, WiFi, and Bluetooth. It includes a GUI interface on PC accessed via USB, LAN, or WLAN. The system also has a web-based and mobile interface for remote control. All programming is done in C, PHP, Java, and MATLAB to allow automated control and feedback of devices from anywhere.
This project aims to design a home automation system that allows users to remotely control and monitor home appliances like lights, fans, AC, etc. using a cell phone. It uses a DTMF module and relays to control the appliances circuitry. The system receives commands from a mobile phone through DTMF tones and operates the appliances accordingly. It provides benefits like saving time, reducing costs, and increasing security and convenience. The document discusses the need for automation, working of DTMF signals, cellular communication technologies considered, system requirements including hardware and software, and programming steps to control appliances remotely.
This document describes a project to control industrial/agricultural loads wirelessly using cell phones. The receiving phone decodes DTMF tones from the sending phone using a decoder chip. The output is fed to a microcontroller which controls relays and loads. A power supply regulates voltage for the microcontroller and other ICs. Relay driver chips interface the microcontroller to the relays. The project allows remote control of loads from any location using basic cell phones.
This document describes a DTMF-based home appliance control system that allows wireless control of devices in a home using a user console with numbered keys. The system uses a DTMF decoder, microcontroller, and wireless transmitter and receiver to encode and transmit user selections via DTMF signals and control appliances accordingly. Key components include an AT89S52 microcontroller, MT8870 DTMF decoder, relays, LEDs, buttons, and other basic electronic components. When a key is pressed, the DTMF signal is encoded and transmitted to the receiver, then decoded by the microcontroller to trigger the correct appliance, allowing remote control of devices like lights and appliances from anywhere.
This document describes the design of a GSM-based electronic notice display system. The system has two main sections - a transmitting section consisting of a mobile phone with a GSM modem, and a receiving section with a microcontroller, GSM modem, LCD display, and other components. The receiving section interfaces with the GSM network to receive text messages and display notices on the LCD screen. Key components of the receiving section include an AT89c52 microcontroller, MAX232 converter, 16x2 LCD, and power supply. The system allows wireless transmission of notices to an electronic display board via SMS, providing a lower maintenance alternative to traditional programmable displays.
This document presents a design for a low-cost home automation system using Bluetooth technology. The system allows control of electrical appliances in the home remotely using a PC, laptop, or smartphone. It uses a microcontroller, Bluetooth module, relay driver, and other low-cost components. The software allows sending control commands via ASCII characters to turn appliances on and off. This system is intended to assist the elderly and disabled by providing remote control of home appliances at a low total cost of under 3000 rupees.
This document describes a DTMF (Dual Tone Multi Frequency) based load control system. The system uses a DTMF decoder interfaced with a microcontroller to receive DTMF tones from a cell phone and control loads remotely. When a key is pressed on the cell phone, the corresponding DTMF tones are received by the decoder and converted to digital codes. The microcontroller then turns relays on/off to actuate loads according to the received commands, allowing remote control of industrial and agricultural equipment or household devices spread over a large area.
Wireless Radio Frequency Module Using PIC Microcontroller.Abee Sharma
It's An Microcontroller Based DIY Electronics Project. Named Wireless RF Module Using PIC Microcontroller. An RF module is a small electronic circuit used to transmit, receive, or transceive radio waves on one of a number of carrier frequencies. RF modules are widely used in consumer applications such as garage door openers, wireless alarm systems, industrial remote controls, smart sensor applications, weather monitoring system, RFID, wireless mouse technology and wireless home automation systems. They are often used instead of infrared remote controls as they have the advantage of not requiring line-of-sight operation. Stay tuned for Furthur Links, Thanxx.
Created By: Abhi Sharma
Mobile robotic platform to gathering real time sensory data in wireless perso...Alexander Decker
This document describes a mobile robotic platform that uses wireless communication to gather real-time sensory data. The robots use Zigbee transceivers to transmit data like temperature and gas content to a control room over a wireless personal area network. A graphical user interface in MATLAB is used to monitor and control the robots. The system allows for low-cost wireless monitoring in applications like home security, mining, and hazardous environment monitoring where robots can gather data that may be dangerous for humans. Hardware and software components of the transmitting robot nodes and receiving coordinator node are discussed, including microcontrollers, sensors, wireless modules and the MATLAB GUI interface.
Microcontroller remote controlling projectBipro Roy
Microcontroller based remote controlling project using mobile phone. with implementing this u can remotely control ur home appliances like fan, light, tv even industrial machines through a mobile phone being in a long distance.
The document discusses the design of a cell phone-based home control system that allows users to remotely control and monitor appliances like lights, fans, and thermostats from their phone. It covers the system components, including using text messaging for phone communication, selecting a GM28 cellular module and STK300 microcontroller, and programming the system using C language in Visual Studio. The document also addresses authentication and user interaction methods to securely control devices from the phone.
This document describes a cell phone based device control project developed under the guidance of Ms. G. Susmitha. The objective is to turn appliances on and off using a cell phone as a remote control. The system allows controlling up to 6 devices and provides voice status updates. It uses components like a microcontroller, DTMF receiver, relay driver, and other basic electronic components. The circuit diagram and working are explained, including interfacing techniques. Advantages, limitations, software used, and future scope are discussed.
Project report on dtmf based door opening systemMukul Mohal
The document describes a cell phone security system that allows a user to unlock a door using their cell phone. It works by using DTMF (dual tone multi-frequency) signaling, where each button on the phone's keypad generates a unique tone. When the user calls their home security system and enters a valid password using their phone's keypad, the system verifies the password using the DTMF tones and automatically unlocks the door. The project aims to automate the manual process of unlocking a door with a physical key by allowing it to be unlocked remotely using a cell phone. It provides convenience by allowing entry without needing to get out of a car to unlock the door.
Voice Recognition Wireless Home Automation System Based On ZigbeeIOSR Journals
This document describes a voice recognition wireless home automation system based on Zigbee. The system uses a microcontroller connected to a HM2007 speech recognition chip and Zigbee modules to allow voice control of home appliances from a base station. The base station takes voice commands from a microphone, which are processed by the HM2007 chip and sent via Zigbee to a remote station. The remote station then controls electrical devices and sensors and sends status information back to the base station display. The system is designed for elderly and disabled users to easily operate home automation with voice commands for security and convenience.
Microcontroller remote controlling projectBipro Roy
This project aims to remotely control home appliances using a mobile phone. A caller can control appliances by pressing buttons on their phone, generating DTMF tones. These tones are decoded by a microcontroller which then activates relays connected to appliances. The microcontroller was programmed in C to activate relays corresponding to different DTMF tone combinations. This allows remote control of appliances from any phone.
IRJET-Smart Phone Based Robot for Domestic Purpose using BluetoothIRJET Journal
This document describes the design and development of a smart phone controlled robot using Bluetooth for domestic purposes. A Raspberry Pi 3 is used as the control unit and is interfaced with Bluetooth and DC motors. An Android application is developed to control the robot's movement wirelessly via Bluetooth. The robot can move forward, backward, left and right according to commands from the Android app. The purpose is to create a robot that can be remotely controlled from a smartphone for applications such as surveillance and home automation.
DTMF base Mobile controlled appliances controlGopal Bardhan
This document describes a circuit that allows controlling electrical appliances via a mobile phone using DTMF tones. The circuit uses a DTMF decoder IC to decode the tones from the phone's microphone into digital outputs. These outputs control a relay circuit that can power appliances. When a key is pressed on the phone, the DTMF IC detects the tone and triggers a flip-flop that energizes the relay and the appliance. This allows remote control of devices from a phone without needing an internet connection.
HOME AUTOMATION USING MOBILE PHONES GIRISH HARMUKH AND NEERAJ YADAVGIRISH HARMUKH
This document describes a home automation project that allows controlling appliances in the home remotely using a mobile phone. The system uses a DTMF decoder chip and microcontroller to receive touch tones from the phone and operate relays connected to lights, fans, and other devices. Touch tones 2 and 5 control one appliance, while 3 and 6 control another. The system provides wireless control of home devices from anywhere and can save energy by switching items off when away. It is an inexpensive way to automate a home with potential for future expansion.
IRJET- Password based Circuit Breaker using DTMFIRJET Journal
This document describes a password-based circuit breaker system that uses dual-tone multi-frequency (DTMF) technology. The system is designed to provide safety for maintenance staff working on live electrical lines. It uses a DTMF decoder integrated with a microcontroller and relays to allow loads to be turned on or off remotely using passwords dialed from a mobile phone. The system was simulated using Proteus software and implemented on a printed circuit board. It provides a solution that ensures safety and security by only allowing authorized people who know the passwords to control the circuit breaker.
DTMF Based speed control of induction motorNiteen Shinde
This Project presented a method to control speed of induction motor using mobile phone and DTMF decoder. From the convenience of a simple cell phone, a user is able to control and monitor virtually any electrical device. This will be essential because of the wide range of technical knowledge that homeowners have. The popularity and availability of the mobile and mobile network makes this kind of control very useful and powerful. The main advantages of the proposed system are its reliability, low cost, and wide area coverage.
Dtmf based home automation system using microcontroller pptSree Sree
This document describes a DTMF (Dual Tone Multi Frequency) based home automation system circuit. It consists of an ATmega8 microcontroller, HT9107B DTMF decoder IC, relays, and loads like lights and fans. The circuit allows controlling appliances remotely from a mobile phone by pressing buttons which generate tone pairs decoded by the HT9107B and sent to the microcontroller. When a button is pressed, the corresponding appliance is switched on or off. The system provides remote control of home devices but has limitations in the number of controllable appliances and synchronization issues.
Intelligent Power Meter using GSM network and Android Applicationshan km
Now a days everything is being automated. The electrical energy provider still uses traditional methods for reading the energy consumed by individual consumer. The proposed system automatically reads the energy consumed and send it to the electricity provider using the short messaging services (SMS) and Android app.
The aim of this project is to control the electrical appliances through a personal computer (PC). With this system, one can control the electrical appliances ON/OFF by just being seated at one place using a PC.
The past decade has seen significant advancement in the field of consumer electronics. Various ‘intelligent’ appliances such as cellular phones, air-conditioners, home security devices, home theatres, etc. are set to realize the concept of a smart home. They have given rise to a Personal Area Network in home environment, where all these appliances can be interconnected and monitored using a single controller.
Busy families and individuals with physical limitation represent an attractive market for home automation and networking. A wireless home network that does not incur additional costs of wiring would be desirable. Bluetooth technology, which has emerged in late 1990s, is an ideal solution for this purpose.
Home automation involves introducing a degree of computerized or automatic control to
Certain electrical and electronic systems in a building. These include lighting, temperature
Control etc.
This project demonstrates a simple home automation system which contains a remote mobile host controller and several client modules (home appliances). The client modules communicate with the host controller through a wireless device such as a Bluetooth enabled mobile phone, in this case, an android based Smart phone.
This document provides details on a home automation project using Arduino. The project aims to design a kit that can control AC loads like lights and fans from an Android phone using an Arduino microcontroller. It discusses the components required like a step-down transformer, Arduino, relays, Bluetooth module, and loads. The circuit diagram and Arduino code for controlling relays on button press from a Bluetooth-connected Android app are also provided. The conclusion states that the system provides a flexible and attractive user interface for home automation compared to other systems.
This document describes the design of a GSM-based electronic notice display system. The system has two main sections - a transmitting section consisting of a mobile phone with a GSM modem, and a receiving section with a microcontroller, GSM modem, LCD display, and other components. The receiving section interfaces with the GSM network to receive text messages and display notices on the LCD screen. Key components of the receiving section include an AT89c52 microcontroller, MAX232 converter, 16x2 LCD, and power supply. The system allows wireless transmission of notices to an electronic display board via SMS, providing a lower maintenance alternative to traditional programmable displays.
This document presents a design for a low-cost home automation system using Bluetooth technology. The system allows control of electrical appliances in the home remotely using a PC, laptop, or smartphone. It uses a microcontroller, Bluetooth module, relay driver, and other low-cost components. The software allows sending control commands via ASCII characters to turn appliances on and off. This system is intended to assist the elderly and disabled by providing remote control of home appliances at a low total cost of under 3000 rupees.
This document describes a DTMF (Dual Tone Multi Frequency) based load control system. The system uses a DTMF decoder interfaced with a microcontroller to receive DTMF tones from a cell phone and control loads remotely. When a key is pressed on the cell phone, the corresponding DTMF tones are received by the decoder and converted to digital codes. The microcontroller then turns relays on/off to actuate loads according to the received commands, allowing remote control of industrial and agricultural equipment or household devices spread over a large area.
Wireless Radio Frequency Module Using PIC Microcontroller.Abee Sharma
It's An Microcontroller Based DIY Electronics Project. Named Wireless RF Module Using PIC Microcontroller. An RF module is a small electronic circuit used to transmit, receive, or transceive radio waves on one of a number of carrier frequencies. RF modules are widely used in consumer applications such as garage door openers, wireless alarm systems, industrial remote controls, smart sensor applications, weather monitoring system, RFID, wireless mouse technology and wireless home automation systems. They are often used instead of infrared remote controls as they have the advantage of not requiring line-of-sight operation. Stay tuned for Furthur Links, Thanxx.
Created By: Abhi Sharma
Mobile robotic platform to gathering real time sensory data in wireless perso...Alexander Decker
This document describes a mobile robotic platform that uses wireless communication to gather real-time sensory data. The robots use Zigbee transceivers to transmit data like temperature and gas content to a control room over a wireless personal area network. A graphical user interface in MATLAB is used to monitor and control the robots. The system allows for low-cost wireless monitoring in applications like home security, mining, and hazardous environment monitoring where robots can gather data that may be dangerous for humans. Hardware and software components of the transmitting robot nodes and receiving coordinator node are discussed, including microcontrollers, sensors, wireless modules and the MATLAB GUI interface.
Microcontroller remote controlling projectBipro Roy
Microcontroller based remote controlling project using mobile phone. with implementing this u can remotely control ur home appliances like fan, light, tv even industrial machines through a mobile phone being in a long distance.
The document discusses the design of a cell phone-based home control system that allows users to remotely control and monitor appliances like lights, fans, and thermostats from their phone. It covers the system components, including using text messaging for phone communication, selecting a GM28 cellular module and STK300 microcontroller, and programming the system using C language in Visual Studio. The document also addresses authentication and user interaction methods to securely control devices from the phone.
This document describes a cell phone based device control project developed under the guidance of Ms. G. Susmitha. The objective is to turn appliances on and off using a cell phone as a remote control. The system allows controlling up to 6 devices and provides voice status updates. It uses components like a microcontroller, DTMF receiver, relay driver, and other basic electronic components. The circuit diagram and working are explained, including interfacing techniques. Advantages, limitations, software used, and future scope are discussed.
Project report on dtmf based door opening systemMukul Mohal
The document describes a cell phone security system that allows a user to unlock a door using their cell phone. It works by using DTMF (dual tone multi-frequency) signaling, where each button on the phone's keypad generates a unique tone. When the user calls their home security system and enters a valid password using their phone's keypad, the system verifies the password using the DTMF tones and automatically unlocks the door. The project aims to automate the manual process of unlocking a door with a physical key by allowing it to be unlocked remotely using a cell phone. It provides convenience by allowing entry without needing to get out of a car to unlock the door.
Voice Recognition Wireless Home Automation System Based On ZigbeeIOSR Journals
This document describes a voice recognition wireless home automation system based on Zigbee. The system uses a microcontroller connected to a HM2007 speech recognition chip and Zigbee modules to allow voice control of home appliances from a base station. The base station takes voice commands from a microphone, which are processed by the HM2007 chip and sent via Zigbee to a remote station. The remote station then controls electrical devices and sensors and sends status information back to the base station display. The system is designed for elderly and disabled users to easily operate home automation with voice commands for security and convenience.
Microcontroller remote controlling projectBipro Roy
This project aims to remotely control home appliances using a mobile phone. A caller can control appliances by pressing buttons on their phone, generating DTMF tones. These tones are decoded by a microcontroller which then activates relays connected to appliances. The microcontroller was programmed in C to activate relays corresponding to different DTMF tone combinations. This allows remote control of appliances from any phone.
IRJET-Smart Phone Based Robot for Domestic Purpose using BluetoothIRJET Journal
This document describes the design and development of a smart phone controlled robot using Bluetooth for domestic purposes. A Raspberry Pi 3 is used as the control unit and is interfaced with Bluetooth and DC motors. An Android application is developed to control the robot's movement wirelessly via Bluetooth. The robot can move forward, backward, left and right according to commands from the Android app. The purpose is to create a robot that can be remotely controlled from a smartphone for applications such as surveillance and home automation.
DTMF base Mobile controlled appliances controlGopal Bardhan
This document describes a circuit that allows controlling electrical appliances via a mobile phone using DTMF tones. The circuit uses a DTMF decoder IC to decode the tones from the phone's microphone into digital outputs. These outputs control a relay circuit that can power appliances. When a key is pressed on the phone, the DTMF IC detects the tone and triggers a flip-flop that energizes the relay and the appliance. This allows remote control of devices from a phone without needing an internet connection.
HOME AUTOMATION USING MOBILE PHONES GIRISH HARMUKH AND NEERAJ YADAVGIRISH HARMUKH
This document describes a home automation project that allows controlling appliances in the home remotely using a mobile phone. The system uses a DTMF decoder chip and microcontroller to receive touch tones from the phone and operate relays connected to lights, fans, and other devices. Touch tones 2 and 5 control one appliance, while 3 and 6 control another. The system provides wireless control of home devices from anywhere and can save energy by switching items off when away. It is an inexpensive way to automate a home with potential for future expansion.
IRJET- Password based Circuit Breaker using DTMFIRJET Journal
This document describes a password-based circuit breaker system that uses dual-tone multi-frequency (DTMF) technology. The system is designed to provide safety for maintenance staff working on live electrical lines. It uses a DTMF decoder integrated with a microcontroller and relays to allow loads to be turned on or off remotely using passwords dialed from a mobile phone. The system was simulated using Proteus software and implemented on a printed circuit board. It provides a solution that ensures safety and security by only allowing authorized people who know the passwords to control the circuit breaker.
DTMF Based speed control of induction motorNiteen Shinde
This Project presented a method to control speed of induction motor using mobile phone and DTMF decoder. From the convenience of a simple cell phone, a user is able to control and monitor virtually any electrical device. This will be essential because of the wide range of technical knowledge that homeowners have. The popularity and availability of the mobile and mobile network makes this kind of control very useful and powerful. The main advantages of the proposed system are its reliability, low cost, and wide area coverage.
Dtmf based home automation system using microcontroller pptSree Sree
This document describes a DTMF (Dual Tone Multi Frequency) based home automation system circuit. It consists of an ATmega8 microcontroller, HT9107B DTMF decoder IC, relays, and loads like lights and fans. The circuit allows controlling appliances remotely from a mobile phone by pressing buttons which generate tone pairs decoded by the HT9107B and sent to the microcontroller. When a button is pressed, the corresponding appliance is switched on or off. The system provides remote control of home devices but has limitations in the number of controllable appliances and synchronization issues.
Intelligent Power Meter using GSM network and Android Applicationshan km
Now a days everything is being automated. The electrical energy provider still uses traditional methods for reading the energy consumed by individual consumer. The proposed system automatically reads the energy consumed and send it to the electricity provider using the short messaging services (SMS) and Android app.
The aim of this project is to control the electrical appliances through a personal computer (PC). With this system, one can control the electrical appliances ON/OFF by just being seated at one place using a PC.
The past decade has seen significant advancement in the field of consumer electronics. Various ‘intelligent’ appliances such as cellular phones, air-conditioners, home security devices, home theatres, etc. are set to realize the concept of a smart home. They have given rise to a Personal Area Network in home environment, where all these appliances can be interconnected and monitored using a single controller.
Busy families and individuals with physical limitation represent an attractive market for home automation and networking. A wireless home network that does not incur additional costs of wiring would be desirable. Bluetooth technology, which has emerged in late 1990s, is an ideal solution for this purpose.
Home automation involves introducing a degree of computerized or automatic control to
Certain electrical and electronic systems in a building. These include lighting, temperature
Control etc.
This project demonstrates a simple home automation system which contains a remote mobile host controller and several client modules (home appliances). The client modules communicate with the host controller through a wireless device such as a Bluetooth enabled mobile phone, in this case, an android based Smart phone.
This document provides details on a home automation project using Arduino. The project aims to design a kit that can control AC loads like lights and fans from an Android phone using an Arduino microcontroller. It discusses the components required like a step-down transformer, Arduino, relays, Bluetooth module, and loads. The circuit diagram and Arduino code for controlling relays on button press from a Bluetooth-connected Android app are also provided. The conclusion states that the system provides a flexible and attractive user interface for home automation compared to other systems.
This document discusses home automation through an Android mobile device. It describes a system where a Bluetooth module and relays are used to allow an Android phone to remotely control home appliances. The phone acts as the host controller, communicating with client modules attached to devices via Bluetooth. The system allows users to control lights, temperature and other electronics from their mobile device.
This document describes a Bluetooth-based home appliance system that allows appliances to communicate wirelessly in a network. It uses a Bluetooth module to connect appliances like lights and fans to an Android phone. The system is powered by a 5V regulated power supply and uses an 8051 microcontroller and relays to control the appliances. Programming is done using the Kiel Vision software. The Bluetooth system provides a low-cost and wireless way to remotely control home appliances through an Android phone.
This document describes a home automation system that allows control of appliances like TVs, fans, and lights from an Android mobile phone using Bluetooth. The system uses an 8-bit microcontroller board with an AT89S52 microcontroller and HC-05 Bluetooth module. The microcontroller is programmed to control electronic devices connected to its input/output ports based on commands received from an Android application via Bluetooth. Feedback on the devices' status is also provided using LED indicators connected to the microcontroller board. The system provides a low-cost and flexible way to automate home or office appliances remotely using a mobile phone.
This document describes a home automation system that allows control of appliances like TVs, fans, and lights from an Android mobile phone using Bluetooth. The system uses an 8-bit microcontroller board with an AT89S52 microcontroller and HC-05 Bluetooth module. The microcontroller is programmed to control electronic devices connected to its input/output ports based on commands received from an Android application via Bluetooth. Feedback on the devices' status is also provided using LED indicators connected to the microcontroller board. The system aims to provide a low-cost and flexible wireless home automation solution.
This document describes a home automation system that allows control of appliances like lights and fans from an Android mobile phone using Bluetooth. The system uses an 8-bit microcontroller with Bluetooth module to wirelessly communicate with the mobile phone. Home appliances are connected to the microcontroller board, which receives on/off commands from a mobile app to control the appliances. Feedback is provided on the device status by lighting LEDs on the microcontroller board. The system provides a low-cost way to automate home devices using a mobile phone over Bluetooth wireless technology.
Monitoring & Controlling of Devices using GSMpriyanka kini
This document describes a system to remotely monitor and control devices using GSM technology. The system uses a microcontroller to receive SMS commands from a mobile phone via a GSM modem and control devices connected to relays. It allows devices like fans and lamps to be turned on and off from a distance. The system provides advantages like remote control from anywhere using basic phone operation and potential applications in home, office, and industrial automation.
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This paper mainly focuses on using wireless technology effectively for security. The system is SMS-based and uses wireless technology to revolutionize the standards of living. It uses a GSM Modem to send an SMS to the home owner in case of an intrusion. The project is realized by interfacing an infrared trans-receiver with an ATMEGA16 microcontroller and a GSM Module. As the system uses GSM technology, it provides ubiquitous access to the system for security.
Home automation and securty using wireless networksArun Kumar
The document describes a home automation project that allows users to remotely control home appliances via SMS messages sent to a microcontroller. The transmitting end is a cell phone that can send SMS messages. The receiving end includes a microcontroller, GSM module, relays and other components to receive SMS commands and control appliances. The system uses AT commands to send and receive SMS messages to remotely control devices like heaters and security systems. Future enhancements proposed include adding timers, sensors and hidden cameras for improved security and automation.
This document describes a project to control electrical appliances in a home remotely using a microcontroller and PC. A microcontroller like the AT89S52 is used to interface with devices via relays and receive commands from a PC through an RS-232 serial connection. The MAX232 chip converts signals between the RS-232 and microcontroller levels. Based on commands from the PC, the microcontroller can turn appliances on and off and send back status updates. This allows remote control and monitoring of devices for applications like smart homes and industrial automation.
GSM Based Device Controlling and Fault DetectionIJCERT
The mobile communication has expanded to a great extent such that it can be applied for controlling of electrical devices. These projects make use of this capability of mobile phone to control three electrical devices with some use of embedded technology which can be extended up to eight devices. Apart from controlling it also does the sensing of the devices. Thus a user can be able to know of the status of the devices and in addition to that the user get notified if any fault is detected. Here in the project controlling and sensing is done for three electrical devices only. According to the user need both of this can be expanded.
The document describes a proposed automatic energy meter reading and billing system using GSM technology. The system would replace manual meter reading by having energy meters transmit readings to a central system via GSM modules. This would allow remote access and monitoring of usage without site visits. The system architecture includes microcontrollers, LCD displays, relays, GSM modules, and other hardware. It would provide benefits like reduced costs, time savings from manual reading, and more accurate billing.
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
This project uses X Bee wireless modules to control devices remotely with feedback. The transmitter unit takes input from switches and sends commands via an X Bee module. The receiver unit receives the commands via its X Bee module and controls devices like relays. The status of devices is displayed on an LCD. X Bee modules allow bidirectional wireless communication and are configured using AT commands to control devices remotely over short ranges.
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Home automation and security using wireless network
1. HOME AUTOMATION AND SECURITY SYSTEMS USING WIRELESS
NETWORKS.
T.S.HARISHANKAR 05E122 haritechian@gmail.com
M.ARUNKUMAR 05E111 arun.logan@yahoo.co.in
S.VEDAPRAKASH 05E166 vedaprakash87@yahoo.co.in
ABSTRACT:
In the present days many houses are secure less and all appliances are operated manually.
Moreover the residents hardly remain in their houses due to their professions. They couldn’t
monitor their house from anywhere outside. Due to this houses are prone to theft. Also due to the
resident’s carelessness the appliances are “switched on” the whole day.
Over the last decade, this problem has been overcome by using the Internet and through power-
line modems. However, these solutions are not only complex but also require a physical
connection to access those devices. A simple, cost-effective solution is proposed here, by which
devices can be controlled remotely while the user is anywhere across the globe.
The objective of this project is to enable users to remotely control their home appliances and
systems using a cell phone-based interface. To access the control unit, the user should send an
authentication code along with the required/desired function/action to his/her home control
system via a simple SMS .Upon being properly authenticated, the cell phone-based interface at
home (control unit) would relay the commands to a microcontroller that would perform the
required function/action, and return a function completion code that would be sent to the source
of the original command (user’s cell phone).
This project is aimed toward consumers who wish to control household appliances remotely
from their cell phones provided that the appliances are electrically controllable. Example of
feasible appliances and applications under consideration include; enable/disable security
systems, fans, lights, kitchen appliances, and adjusting the temperature settings of a
heating/ventilation/air conditioning system.
1
2. INTRODUCTION:
Over the last decade, the implementation of this concept has been attempted by using the Internet
and through power-line modems. However, these solutions are not only complex but also require
a physical connection to access those devices. In case of controlling through Internet, the main
problems are- each controllable device requires separate Ethernet card and IP addresses to
control, it also requires Internet connection to each device. A simple, cost-effective solution is
proposed here by which devices as mentioned above can be controlled remotely, while the user is
anywhere across the globe just by sending appropriate SMS message, which is cheaper than
dialing and costs more or less same with respect to geographical distance.
Nowadays, SMS has become very popular. It is a store-and-forward way of transmitting
messages to and from mobiles. Each short message can be no longer than 160 characters. These
characters can be text (alphanumeric) or binary Non-Text Short messages. An interesting feature
of SMS is return receipts. This means that the sender has the option of receiving a receipt
notifying that the SMS was successfully delivered to the intended recipient. Since SMS uses
signaling channels for its transmission/reception as opposed to dedicated data channels, these
messages can be sent/received simultaneously with the voice/data/fax services over GSM
networks. Moreover, SMS supports national and international roaming. With PCS networks
based on all the three technologies (GSM, CDMA and TDMA) supporting SMS, SMS has been
rendered a universal mobile data service.
Power can be wasted in houses and offices due to forgetful nature of users not switching off
appliances after use. There is also the risk of over-heating and hence, damage caused to
household appliances like water-heaters due to such common human errors. By the solution
proposed, such power wastage can be minimized in homes and even work places can be
controlled by a common remote-switch by appropriate networking. In this method the Switches
will be controlled by SMS message.
DESCRIPTION:
The whole setup consists of many individual sub units. The various sub units are
1. MICROCONTROLLER
2. MAX 232
3. RS232 INTERFACE
4. AT COMMANDS
5. KEIL
6. POWER SUPPLY
7. VOLTAGE REGULATOR
1. INTRODUCTION TO ATMEL MICROCONTROLLER
2
3. SERIES: 89C51 Family,
TECHNOLOGY: CMOS
FEATURES:
• 4K Bytes of In-System Reprogrammable Flash Memory
• Fully Static Operation: 0 Hz to 24 MHz
• Three-Level Program Memory Lock
• 128 x 8-Bit Internal RAM
• 32 Programmable I/O Lines
• Two 16-Bit Timer/Counters
• Six Interrupt Sources
• Programmable Serial Channel
• Low Power Idle and Power Down Modes
PORT 0
Port 0 is an 8-bit open drain bidirectional I/O port. As an output port each pin can sink eight TTL
inputs. When 1s are written to port 0 pins, the pins can be used as high impedance inputs. Port 0
may also be configured to be the multiplexed low order address/data bus during accesses to
external program and data memory
PORT 1
Port 1 is an 8-bit bidirectional I/O port with internal pull-ups. The Port 1 output buffers can
source four TTL inputs. When 1s are written to Port 1 pins they are pulled high by the internal
pull-ups and can be used as inputs.
PORT 2
Port 2 is an 8-bit bidirectional I/O port with internal pull-ups. The Port 2 output buffers can
/source four TTL inputs. When 1s are written to Port 2 pins they are pulled high by the internal
pull-ups and can be used as inputs. As inputs, Port 2 pins that are externally being pulled low
will source
PORT 3
Port 3 is an 8-bit bidirectional I/O port with internal pull-ups. The Port 3 output buffers can
sink/source four TTL inputs. When 1s are written to Port 3 pins they are pulled high by the
internal pull-ups and can be used as inputs.
RST
Reset input. A high on this pin for two machine cycles while the oscillator is running resets the
device.
PSEN
Program Store Enable is the read strobe to external program memory.
2. MAX232:
3
4. The MAX232 device is a dual driver/receiver that includes a capacitive voltage generator
to supply EIA-232 voltage levels from a single 5-V supply. Each receiver converts EIA-232
inputs to 5-V TTL/CMOS levels. Each driver converts TTL/CMOS input levels into EIA-232
levels. A max232 chip is used to do the level shifting and this chip is required to send data
serially to a PC which requires voltage levels as per RS232 standard.
3. RS232 STANDARD:
RS232 is an electrical signaling specification published by the Electronic Industries
Association (EIA). Although not identified in the specification, the 9-pin (DB9) connector,
With specific pin assignments, is commonly accepted as the RS232 connector or the serial
Connector. This standard interface provides connection for only modest transmission rates &
is often used with modems.
The general voltage assignment is:
Signal = 0 (LOW) > +3.0V
Signal = 1 (HIGH) < -3.0V
4. AT COMMANDS :
The AT command set is the fundamental interface with the modem. An AT command is simply
a string of characters proceeded by the AT prefix that is sent to the modem. The commands
typically instruct the modem to perform some action or set some characteristic within the
modem. The modem has two states: command state and on-line state. In command state, the
modem will accept and respond to AT commands. In the on-line state, the modem will transmit
data but ignore AT commands. Typically the modem is in the on-line state after dialing.
AT commands has the following format: The command is prefixed with AT (Attention) The
command is terminated by a carriage return <CR> (except the A/ command and
escape sequence). The commands can be entered in upper case or lower case. The AT prefix
can be in upper case or lower case, but both the A and the T must be the
same case. Characters that precede the AT prefix are ignored.
The command line interpretation begins upon receipt of the carriage return. These commands
are used for request information about the current configuration or operational status of the
mobile phone/modem and test availability and request the range of valid parameters, when
applicable, for an AT command.
4
5. Important AT command used to Test and Design:
1) ATD To dial a voice call from the modem.
2) AT+CLIR For calling line Identification Restriction.
3) AT+CNMI To set the mode of the mobile.
4) AT+CMGR To read the message at particular location.
5) AT+CMGD To delete the received message
6) AT+CMGS To send the message.
7) AT+CMGF To change the message format to PDU or Text mode.
8) AT+CMGL To see all the list of messages.
5. KEIL:
Keil Software development tools for the 8051 microcontroller family support every level of
developer from the professional applications engineer to the student just learning about
embedded software development. The industry-standard Keil C Compilers, Macro Assemblers,
Debuggers, Real-time Kernels, and Single-board Computers support ALL 8051-compatible
derivatives and help you get your projects completed on schedule.
6. POWER SUPPLIES:
The present chapter introduces the operation of power supply circuits built using filters,
rectifiers, and then voltage regulators. Starting with an ac voltage, a steady dc voltage is obtained
by rectifying the ac voltage, then filtering to a dc level, and finally, regulating to obtain a desired
fixed dc voltage. The regulation is usually obtained from an IC voltage regulator unit, which
takes a dc voltage and provides a somewhat lower dc voltage, which remains the same even if
the input dc voltage varies, or the output load connected to the dc voltage changes.
Transformer Rectifier Filter IC regulator Load
7. VOLTAGE REGULATORS:
The series 78 regulators provide fixed regulated voltages from 5 to 24 V.,
7805 is connected to provide voltage regulation with output from this unit of +5V dc. An
unregulated input voltage Vi is filtered by capacitor C1 and connected to the IC’s IN terminal.
The IC’s OUT terminal provides a regulated + 5V which is filtered by capacitor C2 (mostly for
any high-frequency noise). The third IC terminal is connected to ground (GND). While the input
voltage may vary over some permissible voltage range, and the output load may vary over some
acceptable range, the output voltage remains constant within specified voltage variation limits.
CONNECTION DIAGRAM:
5
7. The circuit diagram shows the interfacing of the cellular phone with the microcontroller
to communicate with the devices. The cell phone used supports GSM-SMS services. A simple
SMS say “HEATER ON” is sent to this interfaced cell phone. This message can be externally
accessed using AT commands through SERIAL INTERFACE. AT commands will be explained
in the program. Serial interface is established using RS232. In RS232 a logic1 is represented by
-3 to -25V while a logic0 is +3 to 25 V. The RS232 standard is not TTL compatible; therefore it
requires the line drivers such as MAX232 to convert RS232 voltage levels to TTL levels and
vice-versa.
For reliable and best serial data transfer we must synchronize microcontroller and the cell
phone at a fixed baud rate. The baud rate in the 89c51 is programmable. This is done with the
help of timer1. Hence the baud rate is set as 9600kbps. The sequence of AT commands that are
to be sent to communicate with the mobile are:
STEP1: the command AT is sent through the microcontroller from SBUF register.
STEP2: “AT+CMGF=1” is sent to set the mobile phone in text mode.
STEP3: AT+CPMS=”ME” command selects the phone memory.
STEP4: AT+CNMI=1,2,0,0,0 this command will read the message in the first index of the phone
memory and delete it after reading it.
STEP5: when a new message says “HEATER ON” is sent from our mobile this is delivered to
the microcontroller directly in this text format.
+CMGL: 1,"REC READ","+85291234567",,"06/11/11,00:30:29+32"
HEATER ON.
STEP6: SBUF register will receive this message. Through our program the carriage return is
sensed and the content of the message is received.
STEP7: this string received is compared with the already stored
string. If this match occurs the corresponding subroutine is
invoked and the corresponding port pin is made “1”.
STEP8: this port is connected to a relay and through this the
HEATER is switched ON.
FOR SECURITY SYSTEMS:
The security system that is used includes an electronic keypad that comprises
of 10 keys numbering (0-9). In the residence absence they can
activate this keypad in which an appropriate code should be
typed in. When a person needs to enter the home the code (should
be known) should be typed. This code will be sent to the owner’s
cell phone number through the microcontroller. If the code is
correct command “OPEN DOOR” is sent. The microcontroller will
interpret this command and opens the door. If the code is wrong
the door will not be opened. All the above authentication
process is done by separate subroutine in our program. This
subroutine is invoked when the keypad is activated.
7
8. PROGRAM:
#include <REGX51.h>
#include <stdio.h>
#include "delay.h"
#include "serial.h"
void newline(void);
void ins(void);
void chksms(void);
void sendsms(void);
main()
{
PORTB = 0b00000000;
TRISB = 0b00000000;
while(1)
{
chksms();
chkkepad();
}
}
void newline()
{
printf("rn");
}
void ins(void)
{
newline();
printf("ATE=0"); //turns off the echo. if ATE=1 we can see what we are typing on the
monitor.
newline();
DelayS(2);
printf("AT"); //the simplest AT command. it is used to check if communication has been
//established with the phone. if the communication is established,
//the phone replies "OK"
newline();
DelayS(2);
printf("AT+CPMS="ME","ME","ME""); //sets the phone memory as the preferred
storage
newline();
DelayS(2);
printf("AT+CNMI=1,2,0,0,0"); // incoming message notification setting
newline();
8
9. DelayS(2);
printf("AT+CMGF=1"); //sets the phone for TEXT mode SMS
newline();
DelayS(2);
}
void chksms(void)
{
ins();
DelayS(3);
printf("AT+CMGR=1"); //tells the phone that the microcontroller wants to read the SMS at
index #1
//if there is an SMS at index #1, the phone sends the
sms string to the device
/*in TEXT mode the AT+CMGR=1 command may get a string like this:
+CMGR: "REC READ","<phone number>","Joe","08/02/23,10:34:57+24"
HEATER ON <<< this line is the real SMS message OK
*/
newline();
for(;getch() == 'r';) // r is the last character before the real SMS message starts.
{
if( getch() == 'H' ) //just checking if the 1st character of the message is 'H'
{
p1.0 = 1; //turning HEATER ON
sendsms();
break;
} }}
sendsms()
{
printf("AT");
newline();
delay(2);
printf("AT+CSCA="+xxxxxxxxxxxx");/*type the sms center number*/
newline();
delay(2);
printf("HEATER SWITCHED ON");
newline();
delay(2);
printf("AT+CMGS="+yyyyyyyyyyyyy");/*recipient no*/
newline();
delay(2);
}
9
10. void chkkepad() /*get the door access code via the keypad*/
{
cur=0xc0;
command(0x01);command(0x80);
command(0xc0);
while(1)
{
command(0x0f);command(cur);
if(k0==0){cur++;if(cur==0xc0)cur=0xc0;}else if(k1==0){cur--;if(cur<=0xc0)cur=0xc0;}
else if(cur==0xc3)
{
if(k2==0){command(0x0c);n1[3]++;if(n1[3]>=10)n1[3]=0;write(n1[3]+0x30);}
else if(k3==0){command(0x0c);n1[3]--; if(n1[3]==0xff)n1[3]=9;write(n1[3]+0x30);}
}
else if(cur==0xc4)
{
if(k2==0){command(0x0c);n1[4]++;if(n1[4]>=10)n1[4]=0;write(n1[4]+0x30);}
else if(k3==0){command(0x0c);n1[4]--; if(n1[4]==0xff)n1[4]=9;write(n1[4]+0x30);}
}
else if(cur==0xc5)
{
if(k2==0){command(0x0c);n1[5]++;if(n1[5]>=10)n1[5]=0;write(n1[5]+0x30);}
else if(k3==0){command(0x0c);n1[5]--; if(n1[5]==0xff)n1[5]=9;write(n1[5]+0x30);}
}
delay(15000);
}
end_k;
command(0x80);
command(0xc0);
}
CONCLUSION:
Thus the denouement of this project will convert a normal domicile into a fully
automated and secured in much cheaper rate than the other counterparts available in the market.
With this people feel at home as they can control the whole system using a cell phone. Further
the service that is used “SMS” is much reliable than other wireless networks like “Bluetooth”.
From this the overall number of thefts and the power consumption in each home can be abated.
This improves the overall economy of the country.
REFERENCE:
“The 8051 Microcontroller and Embedded Systems” by Muhammad Ali Mazidi.
10