Builders guide robot pacman.pdf

Figure 37. Model of interface between PIC and Ghost contact sensor............................. 29Figure 38. Model of interface between PIC and maze dot sensor .................................... 29Figure 39. Architectural model of Pac-Man software ...................................................... 30Figure 40. Pin assignments for the Ghost ......................................................................... 31Figure 41. Model of interface between PIC and beacon sensors...................................... 31Figure 42. Front beacon measurements of Pac-Man position........................................... 32Figure 43. Left beacon measurements of Pac-Man position............................................. 32Figure 44. Example of the maze fast flooding algorithm ................................................. 34Figure 45. Maze Design.................................................................................................... 35Figure 46. Dot Circuitry for the Maze (for one dot)......................................................... 36Figure 47. Timing diagram of the Switch (including CD4066, resistor, and capacitor) .. 37Figure 48. LM2575 Circuit Schematic ............................................................................. 39Figure 49. LM2575 Circuit Block Diagram ..................................................................... 39iv