Embedded Project List
Post 1 : Many Embedded Projects are listed : 1.GSM\GPS\GPRS Based Projects 2.RFID Based Projects 3.Bluetooth Based Projects 4.Solar based Projects 5.Zigbee based projects 6.Ultrasonic Based projects 7.Communication Protocol Based projects 8.Robotics projects 9.Finger print based projects 10.Biomedical Projects
Sunday 8 June 2014
Saturday 6 July 2013
DTMF based Home automation
DTMF based Home automation
Abstract:
This
paper demonstrates a novel method which enables users to control their home
appliances and systems from remote using a phone-based interface. To access the
control unit, the user should send an authentication code (DTMF) along with the
required/desired function/action to his/her home control system via telephone
or cell phone. 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).
Parts of the Systems:
1. Micro controller: We are using micro controller
8051 to implement the overall system. Proximity sensor established near door
will be connected to any digital IO pin.
2. AC Control: We will use a relay to control electric
appliances. These relays are connected to the IO pins through triggering
mechanism of transistors.
3. DTMF Decoder: we will use MT8870 as a DTMF tone decoder
to find the keys pressed.
Hardware Block Diagram:
8051 Microcontroller:
We will use 8051 microcontroller to build this system.The 8051 architecture provides many functions (CPU, RAM, ROM, I/O, interrupt logic, timer, etc.) in a single package
- 8-bit ALU, Accumulator and 8-bit Registers; hence it is
an 8-bit microcontroller
- 8-bit data bus – It can access 8 bits of data in one
operation
- 16-bit address bus – It can access 216 memory locations
– 64 KB (65536 locations) each of RAM and ROM
- On-chip RAM – 128 bytes (data memory)
- On-chip ROM – 4 Kbyte (program memory)
- Four byte bi-directional input/output port
- UART (serial port)
- Two 16-bit Counter/timers
- Two-level interrupt priority
- Power saving mode (on some derivatives)
Programming Language: Embedded C
Output:
On authentication and receiving proper
digit switch ON/OFF appliances.
Algorithm:
1.
Switch
off all appliances
2.
Monitor
DTMF reception
3.
If
code detected Switch on/off appliance
4.
Go
to step 2
Sunday 9 June 2013
Automatic temperature controlled FAN
Automatic temperature controlled FAN
Abstract:
Here
is a circuit through which a fan can be linearly controlled automatically,
depending on the room temperature. The circuit is highly efficient as it uses digital
temperature sensor temperature measurement. Alternatively, the same circuit can
be used for automatic temperature controlled AC power control. In this circuit,
the temperature sensor used is a DS1820 having precision of 0.5ºC.
The
microcontroller does the above job. It receives the signals from the sensor,
and this signal is operated under the control of software which is stored in
ROM. Microcontroller AT89c2051 continuously monitor the temperature sensor, When
temperature reaches to some threshold value it switches on the fan.
Parts of the Systems:
1
Sensor: We will use DS1820
digital temperature sensor, which will give us digital output. It gives the
temperature value in Centigrade scale.
2.
Micro controller: We are
using micro controller 8051 to implement the overall system. Temperature sensor
will be connected to any of the IO pin.
3. AC Control: We will use a relay to control FAN.
This relay is connected to the IO pin through triggering mechanism of a
transistor.
8051 Microcontroller:
We will use 8051 microcontroller to build this system.
The 8051 architecture provides many functions (CPU, RAM, ROM, I/O, interrupt logic, timer, etc.) in a single package
We will use 8051 microcontroller to build this system.
The 8051 architecture provides many functions (CPU, RAM, ROM, I/O, interrupt logic, timer, etc.) in a single package
- 8-bit ALU, Accumulator and 8-bit Registers; hence it is an 8-bit microcontroller
- 8-bit data bus – It can access 8 bits of data in one operation
- 16-bit address bus – It can access 216 memory locations – 64 KB (65536 locations) each of RAM and ROM
- On-chip RAM – 128 bytes (data memory)
- On-chip ROM – 4 Kbyte (program memory)
- Four byte bi-directional input/output port
- UART (serial port)
- Two 16-bit Counter/timers
- Two-level interrupt priority
- Power saving mode (on some derivatives)
Programming Language: Embedded C
Sensors: DS1820 Digital temperature sensor.
Output: On reaching threshold value switch on the
FAN.
Algorithm:
1.
Switch
off the FAN
2.
Get
data from sensor.
3.
Calculate
current temperature.
4.
If
more than threshold switch on the FAN else switch off the FAN
5.
Go
to step 2
Hardware Block Diagram:
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