Final Product may weigh no more than: 10 lbs. The sound system must be audible from at least: 2 feet Microphone cords must be at least: 2 feet Final Product may be no larger than: 3x3 feet Automatically turn off after (prolonged inactivity) 5 minutes Table 2.4.2 - Specifications List
operation to determine a location’s validity, while bitboards and the eight integer board simply do not permit invalid moves by nature of only ever operating on the valid board. As such, there are no real clever algorithms to further enhance the offerings of these representations. Checking move legality is a more involved process, requiring knowledge that the desired move obeys the piece’s movement patterns, is not in any way obscured, and that it does not result in breaking any rules of the game. Verifying movement patterns is fortunately simple for many pieces - means of doing so are addressed in table 3.j.1 below. All listed methods require very little processing time, relying heavily on checking equality of values and simple mathematical operations, two things processors are designed to be very efficient with. These methods were built into CyberChess’s chess engine and cooperate smoothly with the eight integer board. Bitboard representation simply logical-and the requested move with a representation of valid moves for the respective piece type at its current location (an array of such bitboards would take 3 kibibytes of memory). In order to ensure the game progresses properly, an attempt to move to the same space the piece currently occupies must register as illegal. Piece Movement Pattern - Patterns assume all spaces are unblocked unless otherwise noted. Programmatic Method Pawn The Pawn has the most complicated movement pattern to define, being dependent on its location and the type of move: At any spot, the pawn may move forward one space in its file. At its initial spot, the pawn may move forward two spaces in its file. A pawn may only capture a piece that is in one of its The proper direction of a Pawn is determined with a conditional assignment based on the color identified in the Pawn’s nybble. With this knowledge, the system simply runs through a series of equality checks based on adding appropriate values to the rank and file.
24 LED Driver Texas Instruments TLC5930 96 Reed Switches Sparkfun 1 DRAM 512MB 333MHz Digi-Key 2 7 Segment LCD display Purdy FE0202 2 LCD Panel Driver Intersil ICM7211M 2 Phone Jack for Audio Input Shenzhen Lanho PJ-380 3 24” Drawer Slide Gatehouse LS12224 1 1.5” Diameter 36 Tooth Circular Gear Vex Robotics 279-2169 1 36” x 30” x .093” Acrylic Sheet Optix MS-06 1 5V Low-Dropout Linear Regulator Texas Instruments UA7805 1 10V Low-Dropout Linear Regulator Texas Instruments UA7810 1 3.3V Linear Regulator Texas Instruments LM1117-3.3 1 1.8V Linear Regulator Texas Instruments LM1117-1.8 1 3 to 8 Decoder Sparkfun M74HC238 2 JFET Op-amp Texas Instruments 2 23mm Hobby Speaker Abra SPK110
1 2 GB Secure Digital memory card N/A N/A 2 (16 pack) Vex Rack Gear 276-1957 $19.99 $39.98 100 RGB L.E.D’s COM-10866 $0.86 $63.64 24 LED Driver TLC5930 N/A N/A 2 7 Segment LCD display FE0202 N/A N/A 2 LCD Panel Driver ICM7211M $1.33 $2.66 3 24” Drawer Slide LS12224 $8.23 $24.69 1 1.5” Diameter 36 Tooth Circular Gear 279-2169 $12.99 $12.99 1 36” x 30” x .093” Acrylic Sheet MS-06 $19.98 $19.98 1 5V Linear Regulator UA7805 N/A N/A 1 10V Linear Regulator UA7810 N/A N/A 1 3.3V Linear Regulator LM1117-3.3 N/A N/A 1 1.8V Linear Regulator LM1117-1.8 N/A N/A