THIS IS THE VIDEO REPRESENTATION OF THE PROJECT :
DTMF BASED HOME AUTOMATION SYSTEM
IT CONATINS DTMF DECODER, MICROCONTROLLER DEVELOPMENT BOARD,
RELAY DRIVER AND THE RELAY

THE MOBILE PHONE IS CONNECTED TO THE DTMF DECODER
THE DTMF DECODER , DECODES THE SIGNAL AND CONVERTS
TO BINARY,

THE MICOCONTROLLER READS THE DATA AND CONTROL THE RELAY

demo:

make a call this number
the mobile should be configured in auto answer mode
once the call is received , it will send the dtmf signals
to the out from the audio jack,

now the micocontroller reads this data and control the relay

source

Build on the perfect devolopment board

If you’re fired up to create and raring to go… wait a second. There is something you have to do first – pick out a development board. A lot of the electronics projects created in the maker movement are built on a development board and selecting the correct one could be a time consuming task, specially when you’re having their first go the subject and have no clue what the board does. In essence, a development board is a circuit board or a small PC that gets your electronics project up and going.

The’re a great many kinds of development boards readily available – from microcontroller-based boards to System on Chip (SOC) to single-board computers (SBC) to purpose-built boards with Bluetooth and WiFi.

Don’t fry your minds just yet, this can be basic.

KakiDIY creator Johnson Lam claims that the Raspberry Pi and Arduino are the most loved development boards by the producers in Malaysia. There are many variations of these boards – both at first designed as teaching tools – and the price tags fluctuate. They are distributed on the web and at PC shops.

Learn more on http://www.thestar.com.my/tech/tech-news/2017/04/10/build-on-the-best-board

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