Builders guide robot pacman.pdf

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APPENDIX D: Gantt chartWeek 1(May 6-11)Week 2(May 12-18)Week 3(May 19-25)Week 4(May 26-June 1)Week 5(June 2-8)Week 6(June 9-15)Week 7(June 16-22)Week 8(June 23-June 29)Week 9(June 30-July 5)Week 10(July 6-12)Week 11-12(July 13-26)Project ProposalComponentresearch/selectionPsuedo code write-upObstacle sensor testingDot sensor design/testingRF/encoder/decodertesting/integrationDC motor testingRF controller integrationwith PICObstacle sensor integrationwith PICStepper motor testingContact sensor designBeacon design/testingPCB layout II(due June 11)Chasis design/constructionRF PCB testingRF/motor/obstacleintegration with PICDesign maze layoutAcquire/sand/paint ¾” woodfor maze wallsAcquire/test 5V switchingregulatorAcquire/test new steppermotorsPCB board layoutIII (due June 25)PCB testing(PIC,motor,RF,obstaclesensors)System Integration/TestingPCB board layoutIV (due July 9)Videotaping/final report
APPENDIX E: Source CodePac-Man Header File/************************************************************************//* EECE 474 Summer Semester 2002 *//************************************************************************//* *//* Team 1 Pac-Man Microcontroller Code *//* ================================== *//* *//* Pac-Man code header file *//* *//************************************************************************/// RF Constants#define RF_0 PIN_B0 // RF LSB pin#define RF_1 PIN_B1 // RF MSB pin#define RF_ON PIN_B7 // RF incoming signal interrupt pin// Obstacle Sensor Constants// Note: higher sensor readings mean closer obstacle#define SENSOR_LED PIN_D7 // input pin powering sensor LEDs#define SENSOR_VALID_DELAY 10 // time in ms for sensor read valid from sensor LED on#define OBSTACLE_LEFT 1 // analog channel AN0#define OBSTACLE_RIGHT 0 // analog channel AN1#define OBSTACLE_FRONT 2 // analog channel AN2// Other Sensor Constants#define CONTACT PIN_B6 // Ghost contact sensor pin#define DOT_COUNT PIN_B5 // maze dot eating/counting sensor pin// Motor Control Constants#define R_WHEEL PIN_C1 // right wheel motor stepping pin#define L_WHEEL PIN_C2 // left wheel motor stepping pin#define RIGHT_ANGLE_TURN 43 // number of pulses on one wheel to turn 90 degrees#define BACK_TURN 84#define L_WHEEL_DIR PIN_D2 // left wheel direction pin#define R_WHEEL_DIR PIN_D0 // right wheel direction pin#define L_FORWARD 1 // left wheel direction pin low is forward#define L_BACKWARD 0 // left wheel direction pin high is backward#define R_FORWARD 0 // right wheel direction pin high is forward#define R_BACKWARD 1 // right wheel direction pin low is backward#define ADJUST_AMT 1 // number of pulses to slow wheel down by when adjusting for offcentre// LCD Constants#define LCD_RESETPIN_D4#define LCD_LIVESPIN_D6#define LCD_POINTSPIN_D5#define DOT_COUNT_EXPIRE 20000#define CELL_SIZE 102 // number of pulses to traverse one stepenum direction { N, E, S, W };enum turn { RIGHT, LEFT, BACK, NONE };// Function Prototypesvoid turn_right();void turn_left();void turn_backwards();void stepper_timer();void signal_change();void read_obstacles( int &left, int &front, int &right );
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PAC-MANEECE 474 - Team 1July 24, 20
Page 3 and 4:
Table of ContentsList of Tables ...
Page 5 and 6:
List of TablesTable 1. Encoding sch
Page 7 and 8:
AbstractThe EECE474 Pac-Man project
Page 9 and 10: 2.0 ChassisThe design objective of
Page 11: casters in the back. For any two wh
Page 14 and 15: Figure 10. 55M048B2U 12VDC Unipolar
Page 16 and 17: 4.0 Radio Frequency ApplicationSinc
Page 18 and 19: Table 1. Encoding schemeUp 100Left
Page 20 and 21: is held for several clock cycles an
Page 22 and 23: Figure 20. Receiver Block DiagramTh
Page 24 and 25: Figure 21. GP2D12However, it also h
Page 26 and 27: ed LED on the maze. Therefore, the
Page 28 and 29: Since the beacon signal needs to co
Page 30 and 31: 6.0 Microcontroller and SoftwareOur
Page 32 and 33: Figure 31. Pin assignments for Pac-
Page 34 and 35: Table 2. RF signal format for Pac-M
Page 36 and 37: We know that the timer counts at 1
Page 38 and 39: Figure 40. Pin assignments for the
Page 40 and 41: The measurements for the right and
Page 42 and 43: 7.0 MazeThe maze is the area in whi
Page 44 and 45: Table 4. Truth table of the Memory
Page 46 and 47: 8.4 RegulatorsRegulators were added
Page 48 and 49: 9.0 RecommendationsRFIn order to re
Page 50 and 51: 10.0 ConclusionThe design and imple
Page 52 and 53: APPENDIX A: Photo GalleryPac-ManGho
Page 54 and 55: APPENDIX B: PCB LayoutsPac-ManBotto
Page 56 and 57: GhostBottom Layer (PIC, motor, cont
Page 58 and 59: MazeLEDs and sensor circuit
Page 62 and 63: Pac-Man Source Code/***************
Page 64 and 65: }}}next_turn = NONE;turn_ready = 0;
Page 66 and 67: MIN_RIGHT += read_adc();}output_bit
Page 68 and 69: if ( (ob_left > MAX_LEFT) || (ob_ri
Page 70 and 71: Ghost Source Code/*****************
Page 72 and 73: }case S:}go_forward();break;}curren
Page 74 and 75: }if ( walls & SOUTH )return 0;elser
Page 76 and 77: }queue_count = 0, queue_index = 0,
Page 78 and 79: }}}turn_enable = 0;turn_180 = 0;tur
Page 80: {// Look for Pac-Man's beacon signa
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