FINAL YEAR PROJECT SEMINAR ON:

ACCELEROMETER & LED SENSOR

ARRAY BASED WIRELESSREMOTE CONTROLLED

CAR

Project Guide : Prof. Ankita Patel

Project Co-guide : Prof. Kavita Joshi

Group Code : ETC15

Group Members : ANIKET BHOR ABHIJEET KALBHOR ABHIJEET KAPSE

OBJECTIVE

New Control Mechanisms. Two Controls for a Car.DUAL-AXIS ACCELEROMETER and LEDs (Light

Emitting Diodes) configured as photo-detectors. 

INTRODUCTIONTwo-axis Accelerometer used as a tilt sensor Detects how far the chip was angled from its neutral, (Horizontal)

Flat position.  A digital o/p for both the x & y-axes Which corresponds to how far the accelerometer was tilted & in

what direction. 

A custom LED array was also used to control the car. LEDs - Traditionally used as light producing elements, They also produce a voltage corresponding to how much

light they receive – brighter environments produce a greater voltage across the LED. 

An Infrared Distance Sensor – For Obstacle Avoidance

Accelerometer

LED Array

Microcontroller on Tx Side

Wireless Transmitter

Module

Wireless Receiver Module

Microcontroller on Rx Side

Motor Drive

Mechanism

IR Sensor (For

Obstacle Avoidance)

Digital i/p

Digital i/

p

Tx D

ata

(With

Su

itab

le

Pro

tocol)

REMOTE CONTROL SIDE

CONTROLLED CAR SIDE

FREESCALE MMA 7361L DUAL-AXIS ACCELEROMETERAn Accelerometer measures the acceleration Used to sense orientation, vibration and shock. Present in portable electronic devices and video game

controllers. The accelerometer (MMA7361 L) by Freescale Semiconductor. 

SIMPLIFIED MODEL OF TILT SENSOR

4 BUTTON SENSOR ARRAY

4 LED SENSORS – Forward, Reverse, Left, Right.

To accomplish this, each LED was connected to an LM711 op-amp in a non-inverting configuration.

TRANSMITTER UNIT

ZIGBEE

Figure : Transmitter Schematic (For Example)

RECEIVER UNIT

Figure : Receiver Schematic (For Example)

HARDWARE REQUIREMENT

Components

ATMega32 µC / 8051 µCMC13202 (2.4 GHz Low Power Transceiverfor the IEEE® 802.15.4 Standard) X 2 [ZIGBEE Supported]Suitable Antenna (iBall 2.4 Ghz Wireless Antenna) X2MMA7361L: 3-Axis Analog Output Acceleration SensorIR sensor (From T.E. Project)LEDs for SENSOR ARRAYOther

SOFTWARE REQUIREMENT

Software PurposeDiptrace PCB Design LayoutKeil µC ProgrammingFlashmagic IC BurningOther ZigBee Compiler & Burner

LANGUAGES REQUIRED:

1. EMBEDDED C / ASSEMBLY LANGUAGE2 . ZIGBEE / SMAC PROGRAMMING IDE

SCOPE OF PROJECT(APPLICATIONS)

Scientific Military and Law Enforcement

Search and Rescue Recreation and Hobby    

Importance in the Robotics & Commercial Industries.

REFERENCES

WikipediaUsing Light Emitting Diode Arrays as Touch-Sensitive Input and Output Devices – Scott E. Hudson Human-Computer Interaction InstituteCarnegie Mellon University, Pittsburgh

http://www.cornell.edu - Cornell Universityhttp://www.zigbee.org - ZigBee Alliance Homepage

THANK YOU