1. EMBEDDED PROJECTS-
CHENNAI/IEEE PROJECTS-
WIRELESS Eye ball Sensor for
automatic Wheel Chair for paralysed
patients
This Wireless intellichair is designed to help the
paralysed person who moves on a wheel chair,
instead of the handicapped person moves the
wheel chair by his hand, the chair will automatically
move to a particular direction as the patient moves
his eyes towards a direction, with the help of Eye
ball movement detection sensor. The chair will also
sense the obstacles in front of it and gives a beep

2. sound. The details regarding the construction of
this chair includes the following
Model:
A prototype model which symbolizes the wheel
chair is constructed using the MS Sheet
(WHEELCHAIR BATTERY OPERATED- USING DC MOTOR
12V/60 RPM-1AMPS CURRENT RATINGS)
Block Diagram:
PIC 16F877
Microcontroller Potential
Divider
+5V
Voltage
Regulator
Follower
12V Transformer
RF Transmitter 433 MHZ
Eye Ball Sensor (Left / Right)

3. RF Receiver 433 MHZ
IR Sensor
PIC 16F877
Microcontroller
+5V Alarm
Regulator
Relay Driver
12V Transformer Circuit
Movement
1. Forward
Relay output for Dc Motor 3. Left
4. Right
5. Start

4. Description:
Pic Microcontroller Board:
This is the board which contains PIC
Microcontroller Chip as well as the clock Circuitry,
Reset Circuit and Power Supply for the
Microcontroller.
Power supply:
Provides Power Supply for the IC’s and components
RF Transmitter:

5. A wireless RF 433 MHZ transmitter is used to
convert the digital signals from the encoder to
Wireless RF Signals and transmit the data
RF Receiver:
A wireless RF 433 MHZ Receiver is used to
convert the Wireless RF Signals to digital signals and
sends it to the microcontroller
Intruder Sensor
An Infrared sensor is used as a intruder
detector. So when an intruder is sensed we can
redirect the movement of the Model.
Eye ball Movement Sensor:
This is used to sense the movement of the eye
ball’s direction and converts it into digital data and

6. transfers it to the Master controller. (Straight
Command, Left/Right Command, Stop Command)