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SMS Based Remote Temperature Monitoring

SMS Based Remote Temperature Monitoring
SMS Based Remote Temperature Monitoring
SKU SKU17784  
Weight 1.00 grams
 
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one year warranty 15 days money back guarantee ! fully assembled and tested c source code for hc-sr04 40 pin avr development board schematic free home delivery

Temperature monitoring have wide application in daily life. In modern days, keeping an eye on temperature of places such as server rooms, hospital rooms, warehouses and green houses can help solve many problems. If you use normal temperature sensors then you needs to go to that place every time if you wish to view the temperature. But with the development of GSM network, you can easily connect the sensor with GSM network, so that you don’t need to be present near the sensor in order to view the temperature. You can just pick up your cell phone and send a request to your sensor by a text message and in no time you will receive the temperature of the remote place !

The advantage is the you don’t need any kind of "special" device at the receiver end. You can use any cell phone to view the remote temperature. This reduces cost as you already have a cell phone.

Other benefit is that the range is not limited. You can be at any place in the world (with mobile coverage of course!), to request temperature data from your room.

Remote Temperature Monitor using ATmega32

Main Screen

The main screen show the current temperature reading in degree centigrade. It also shows the current status of the system. The meaning of various icons in status area is shown below.

  • Blinking Heart: Normal working
  • Down Arrow: Downloading message
  • Up Arrow: Sending reply message
  • Tick Mark: Sending success

remote temperature monitor main screen

Requesting Temperature

Compose a new text message on your cell phone and enter the following command.

GET T

and send it to the number whose SIM card you have inserted in the GSM Module.

get temperature

In no time you will receive a text message which will tell you the temperature of the remote station.

response from temperature monitor

Parts of the Board

atmega32 board with lcd and usart

Parts of the Board

  • Power input: 12V 3A input from a wall adapter.
  • On/Off switch
  • Power indicator LED.
  • Alert LED
  • ISP Connecter: For downloading new programs to the built in microcontroller. (Requires an ISP programmer, NOT included with the KIT!)
  • Buzzer: Not used in this project
  • Temperature sensor: LM35
  • Keypad:Not used in this project
  • Serial communication line: This is where GSM Modem is connected
  • LCD connector.
  • 12V out: For powering the modem.
  • Contrast Adjust Preset: Adjust this with the help of a screw driver to get a clear display on LCD.

Schematic (Circuit Diagrams)

schematic for gsm connected notice board

Fig. Schematic

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