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RAJNIKANT RAI 
PRADEEP SINGH 
ANIKET PRAMANIK 
RISHIKESH 
VIKASH NAGAR 
SAVARAJ MANI 
NIKHIL KHARODE
• A GSM based home automation system has a very low 
cost of installation and maintenance. 
• Flexible and Durable. 
• No risk of being hacked. 
• Involves daily operation costs as the user has to pay for 
each SMS. 
• Quick response.
• ARM7TDMI-S is a general purpose 32 bit microprocessor which offer high 
performance and very low power consumption. 
• LPC2148 microcontroller is based on a 16 bit/32 bit ARM7TDMI-S CPU 
with real time emulation and embedded trace support. 
• 8kb to 40 kb of on chip static RAM and 32 kb to 512 kb of on chip flash 
memory 
• In system programming via on chip boot loader software. 
• Single flash sector or full chip erase in 400 ms and programming of 256 b in 
1ms 
• USB 2.0 full speed compliant device controller with 2 kb of end point ram.in 
addition LPC2146/48 provides 8 kb of on chip RAM accessible to USB by 
DMA 
• Single 10-bit DAC provides variable analog output two 32 bit timers/external 
event counters, pwm unit and watchdog. 
• Two 10 bit ADCs provide a total of 6/14 analog inputs, with conversion times 
as low as 2.44 micro sec per channel 
• Low power RTC with independent power and 32 kHz clock input.
• Vectored Interrupt Controller (VIC) with configurable priorities and vector 
addresses. 
• 21 external intruppt pins are available. 
• Multiple serial interfaces including two UARTs, two fast I2C-BUS, SPI and SSP 
with buffering and variable data length capabilities. 
• 60 MHz maximum CPU clock available from programmable on chip PLL with 
settling time of 100 micro sec.
• GSM is the most popular standard for mobile phones in the world. It is 
based on TDMA (time division multiple access) technology. 
• We are using the SIMCOM 300, a GSM modem . This is a powerful 
GSM/GPRS Terminal with self-contained unit. 
• This has standard connector interfaces and has an integral SIM card reader. 
The modem has a RJ9 connector through which a speaker and microphone 
can be connected allowing audio calls being established, but this feature is 
not utilized in this project as only data transfer is needed.
Enable (E)-This line allows access to the display through R/W and RS 
lines. When this line is low, the LCD is disabled and ignores signals from 
R/W and RS. 
When (E) line is high, the LCD checks the state of the two control lines 
and responds accordingly. 
Read/Write (R/W)-This line determines the direction of data between the 
LCD and microcontroller. When it is low, data is written to the LCD. When 
it is high, data is read from the LCD. 
Register select (RS)-With the help of this line, the LCD interprets the 
type of data on data lines. When it is low, an instruction is being written to 
the LCD. When it is high, a character is being written to the LCD.
•A relay is used to isolate one electrical 
circuit from another. 
• It allows a low current control circuit to 
make or break an electrically isolated 
high current circuit path.
Appliance 1 
Display Unit 
LPC2148 
Micro 
Controller 
Power 
supply unit 
GSM 
modem 
Relay 1 
Relay2 
Appliance 2 
RELAY 
DRIVER 
Serial 
driver
The program which has been fed into the LPC2148 
microcontroller, has been written in Embedded C language for 
LPC2148 in this software. 
This is a simulation software that has been used to simulate the 
program before it is actually fed into LPC2148.
Home automation and Digital notice board using android app
Android Application 
HOME AUTOMATION & DIGITAL NOTICE 
BOARD
ANDROID APP 
• Easy user interface, so that any body can use. 
• Allow user to Switch On or Off any of the Home 
Appliances through soft switch from anywhere in this 
world where GSM is present. 
• Safe and secure.
WHY ANDROID APP ? 
 Most common mobile OS in the world. 
Portable and easy way to carry your home remote. 
 Like GSM is more secure than Wi-Fi ,App is more secure 
than common messaging. 
Automation flow is easily control by this App.
HOW ITS WORKS ? 
 When we open up the App it gives us two options
WHEN WE SELECT “LIGHT CONTROL” OPTION 
This Menu Pops Up Click the “Light On” Option After some time
WHEN WE SELECT “NOTICE BOARD” OPTION

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Home automation and Digital notice board using android app

  • 1. RAJNIKANT RAI PRADEEP SINGH ANIKET PRAMANIK RISHIKESH VIKASH NAGAR SAVARAJ MANI NIKHIL KHARODE
  • 2. • A GSM based home automation system has a very low cost of installation and maintenance. • Flexible and Durable. • No risk of being hacked. • Involves daily operation costs as the user has to pay for each SMS. • Quick response.
  • 3. • ARM7TDMI-S is a general purpose 32 bit microprocessor which offer high performance and very low power consumption. • LPC2148 microcontroller is based on a 16 bit/32 bit ARM7TDMI-S CPU with real time emulation and embedded trace support. • 8kb to 40 kb of on chip static RAM and 32 kb to 512 kb of on chip flash memory • In system programming via on chip boot loader software. • Single flash sector or full chip erase in 400 ms and programming of 256 b in 1ms • USB 2.0 full speed compliant device controller with 2 kb of end point ram.in addition LPC2146/48 provides 8 kb of on chip RAM accessible to USB by DMA • Single 10-bit DAC provides variable analog output two 32 bit timers/external event counters, pwm unit and watchdog. • Two 10 bit ADCs provide a total of 6/14 analog inputs, with conversion times as low as 2.44 micro sec per channel • Low power RTC with independent power and 32 kHz clock input.
  • 4. • Vectored Interrupt Controller (VIC) with configurable priorities and vector addresses. • 21 external intruppt pins are available. • Multiple serial interfaces including two UARTs, two fast I2C-BUS, SPI and SSP with buffering and variable data length capabilities. • 60 MHz maximum CPU clock available from programmable on chip PLL with settling time of 100 micro sec.
  • 5. • GSM is the most popular standard for mobile phones in the world. It is based on TDMA (time division multiple access) technology. • We are using the SIMCOM 300, a GSM modem . This is a powerful GSM/GPRS Terminal with self-contained unit. • This has standard connector interfaces and has an integral SIM card reader. The modem has a RJ9 connector through which a speaker and microphone can be connected allowing audio calls being established, but this feature is not utilized in this project as only data transfer is needed.
  • 6. Enable (E)-This line allows access to the display through R/W and RS lines. When this line is low, the LCD is disabled and ignores signals from R/W and RS. When (E) line is high, the LCD checks the state of the two control lines and responds accordingly. Read/Write (R/W)-This line determines the direction of data between the LCD and microcontroller. When it is low, data is written to the LCD. When it is high, data is read from the LCD. Register select (RS)-With the help of this line, the LCD interprets the type of data on data lines. When it is low, an instruction is being written to the LCD. When it is high, a character is being written to the LCD.
  • 7. •A relay is used to isolate one electrical circuit from another. • It allows a low current control circuit to make or break an electrically isolated high current circuit path.
  • 8. Appliance 1 Display Unit LPC2148 Micro Controller Power supply unit GSM modem Relay 1 Relay2 Appliance 2 RELAY DRIVER Serial driver
  • 9. The program which has been fed into the LPC2148 microcontroller, has been written in Embedded C language for LPC2148 in this software. This is a simulation software that has been used to simulate the program before it is actually fed into LPC2148.
  • 11. Android Application HOME AUTOMATION & DIGITAL NOTICE BOARD
  • 12. ANDROID APP • Easy user interface, so that any body can use. • Allow user to Switch On or Off any of the Home Appliances through soft switch from anywhere in this world where GSM is present. • Safe and secure.
  • 13. WHY ANDROID APP ?  Most common mobile OS in the world. Portable and easy way to carry your home remote.  Like GSM is more secure than Wi-Fi ,App is more secure than common messaging. Automation flow is easily control by this App.
  • 14. HOW ITS WORKS ?  When we open up the App it gives us two options
  • 15. WHEN WE SELECT “LIGHT CONTROL” OPTION This Menu Pops Up Click the “Light On” Option After some time
  • 16. WHEN WE SELECT “NOTICE BOARD” OPTION