Wireless Gesture Controlled Tank Toy- Transmitter


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This PPT describes the construction, working and applications of Wireless gesture controlled Tank Toy (using ZigBee).

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Wireless Gesture Controlled Tank Toy- Transmitter

  1. 1. A Presentation on Presented by: Naveet Kumar (08EJIEC063) Neeraj Purohit (08EJIEC064) Nitesh Sharma (08EJIEC071) Batch: C-3 1 B. Tech VIII Sem- (ECE)
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  4. 4. COMPONENTS USEDATMega32 microcontroller and gyro scope are employedfor the controller. A pair of wireless UART module, IEEE 802.15.4, is usedto communicate between the controller and tank. Power Supply and Analog to Digital Converter send theiroutput to microcontroller.The hardware is also ready for ZigBee wireless protocol. 4
  5. 5. TraNSMiTTErPower Receiversupply MMA7260 Atmega32 ADC (MEMS) Micro ControllerCrystal Max232 ZigBeecircuit module XBEE MODULE(TX) ATMEG32 MMA7260 MEMS 5
  6. 6. SHEMaTiC DiagraM 7805 VCC BRIDGE RECTIFIER 1 3 1 V IN VOUT 220 ohms 1 2 - + 4A.C TRANSFORMER I/P 2 1000uf/25v 104pf 33pf led 3 GND 6
  7. 7. POWEr SUPPLY 9 volts transformer for continuous power supply. A battery some times may lead to total currents loss & hence we use A.C Transformer. A.C transformer gives the input to Bridge Rectifier. Bridge Rectifier converts A.C to D.C. One filter capacitor- 1000uf/25v electrolytic capacitor is connected in parallel section. The main purpose of this capacitor is to reduce the alternate peaks, if any. Hence the name: ‘Filter capacitor’ that re-pulls. 7
  8. 8. • LM7805 Regulator is used using regulated 5 volt source.• The positive lead is connected to unregulated DC power supply Input pin, the negative lead is connected to the Common pin and then power is turned on.• A 5 volt supply from the Output pin is obtained. Red color led is used to indicate the power. 8
  9. 9. aTMEga8535 The Atmega8535 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the Atmega8535 achieves throughputs approaching 1 MIPS per MHz allowing the system designed to optimize power consumption versus processing speed. The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. 9
  10. 10. PiNDiagraM (aTMEga8535) 10
  11. 11. aNaLOg TO DigiTaL CONVErTEr Converts a continuous real time quantity to discrete time digitalpresentation. Atmega8535 features a 10-bit successive approximation ADC. The ADC contains a Sample and Hold circuit which ensures that theinput voltage to the ADC is held at a constant level during conversion. The ADC generates a 10-bit result which is presented in the ADC DataRegisters, ADCH and ADCL. 11
  12. 12. gYrOSCOPE Device for measuring or maintaining orientation. Based on the principle of angular momentum. Orientation changes in response to an external torque. The gyroscope used is 3 axis MMA7260QT accelerometer. Includes a ‘SLEEP MODE’ that makes it useful for handheld battery powered electronics. 12
  13. 13. Z igB e M o le e du Used for high level communication protocol using low power digital radios.  Simpler, less expensive and secured as compared to other networks.  Used for RF or low data rate applications involving long battery life. 13
  14. 14. A pplicatio o Z igB e ns f e• The ZigBee Smart Energy V2.0 specifications define an IP-based protocol tomonitor, control, inform and automate the delivery and use of energy and water 14
  15. 15. L293D DC MOTOr Used to vary speed torque relationship toany extent. The speed of DC Motor can be controlledto increase the delivered torque. Provide bi-directional current of up to600mA from 4.5V-36V. All inputs are TTL compatible. 15
  16. 16. SEriaL COMMUNiCaTiON An interfacing standard called RS232 wasset by the Electronics Industries Association(EIA) in 1960. In 1963 it was modified andcalled RS232A. RS232B and RS232C were issued in 1965and 1969 respectively.However, since the standard was set longbefore the advent of TTL logic family, itsinput and output voltages are not TTLcompatible.Today, RS232 is the most widely used I/Ointerfacing standard. 16
  17. 17. rS232 STaNDarD & LEVEL CONVErTEr This is the standard used in serial communication:2. Logic0 is represented by 3 Volts to 25 Volts3. Logic1 is represented by -3 Volts to -25 Volts4. From -3 Volts to +3 Volts, is undefined.5. The electronic device used for converting digital data to rs232 standard is ‘MAX232’. 17
  18. 18. WOrkiNg The purpose is to sense the coordinates of position of our hand. ADC converts output of sensor into digital form. The micro controller performs the required function as programmed. The transmission of data takes place wirelessly from transmitter to receiverthrough ZigBee. 18
  19. 19. A pplicatio o Ge re te lo ns f stu chno gy•Sign language recognition. Just as speech recognition can transcribe speech to text, certain types ofgesture recognition software can transcribe the symbols represented through sign language into text.•Control through facial gestures. Controlling a computer through facial gestures is a usefulapplication of gesture recognition for users who may not physically be able to use a mouse orkeyboard. Eye tracking in particular may be of use for controlling cursor motion or focusing onelements of a display.•Alternative computer interfaces. Foregoing the traditional keyboard and mouse setup to interactwith a computer, strong gesture recognition could allow users to accomplish frequent or commontasks using hand or face gestures to a camera.•Virtual controllers. For systems where the act of finding or acquiring a physical controller couldrequire too much time, gestures can be used as an alternative control mechanism. Controllingsecondary devices in a car, or controlling a television set are examples of such usage.•Remote control. Through the use of gesture recognition, "remote control with the wave of a hand"of various devices is possible. The signal must not only indicate the desired response, but also whichdevice to be controlled 19
  20. 20. Othe A pplicatio r nsVehicle navigation Marine navigation Fleet management Base services Auto pilot Personal navigation Travel equipment Track equipment Systems and mapping applications 20
  21. 21. rEFErENCESText Books Referred:•“The AVR Microcontroller and Embedded Systems” - By Muhammad Ali Mazidi andJanice Gillispie Mazidi (Pearson Education).• ATMEL AVR Data sheetsWebsites Referred:•http://www.matrixmultimedia.com/datasheets/XBEEV2.pdf•http://www.sparkfun.com/datasheets/Sensors/Gyro/PS‐ITG‐3200‐00‐01.4.pdf•http://www.sparkfun.com/datasheets/Robotics/TB6612FNG.pdf•http://www.robotechlabs.com/robotech.aspx?DID=30•http://www.techcrunch.com/2010/12/15/robot-arm-japa/•http://www.robotpower.com/downloads/•http://en.wikipedia.org/wiki/Accelerometer•http://www.instructables.com/id/Accelerometer-Gyro-Tutorial/•http://www.howstuffworks.com/motor.htm•http://www.basicmicro.com/LCD-16x2-display_p_87.html•http://ww1.microchip.com/downloads/en/devicedoc/usart.pdf•http://www.scienceprog.com/internal-microcontroller-adc/•http://www.sena.com/download/tutorial/tech_Serial_v1r0c0.pdf•http://www.arduino.cc/en/Reference/serial•www.needasample.com/dw/components/motor-ics.html•http://people.ece.cornell.edu/land/courses/ece4760/FinalProjects/s2011/rw363/Final 21%20Report%20Rick%20Wong.pdf
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