A sudoku solver using LEGO and Matlab.

• Methods
  • firstScan(): find grid size, position of cells that contain a number
  • scanCells(): scans individual cells that contain numbers
  • getCell(x,y): if cell @ x,y contains a number, a 2D greyscale matrix is returned
  • saveCells(fileName): save cells to file
  • loadCells(fileName: load cells from file
  • [x,y] = getNumCells(): returns the number of cells in x/y position

• Methods
  • parseCell(img_matrix): takes a 2D greyscale matrix and returns the number it represents

Provides a wrapper around the low level hardware functions. Is the only class that accesses the RWTH Mindstorms toolbox directly.

• Methods
  • HardwareAbstractionLayer(varargin): creates an instance and opens both NXTs that need to be connected via USB
  • toggleLamp1: toggles lamp 1
  • toggleLamp2: toggles lamp 2
  • value = getBrightness1: returns the value of light sensor 1
  • value = getBrightness2: returns the value of light sensor 2
  • value = getBrightness3: returns the value of light sensor 3
  • [a b c] = getBrightness: returns the values of all three light sensors
  • moveRight(steps): tells the hardware to move right
  • moveLeft(steps): tells the hardware to move left
  • moveRightW(steps): tells the hardware to move right and delays program execution untill operation is finished
  • moveLeftW(steps): tells the hardware to move left and delays program execution untill operation is finished
  • moveForwards(steps): tells the hardware to move forwards
  • moveBackwards(steps): tells the hardware to move backwards
  • moveForwardsW(steps): tells the hardware to move forewards and delays program execution untill operation is finished
  • moveBackwardsW(steps): tells the hardware to move backwards and delays program execution untill operation is finished
  • ans = reachedEnd: returns 0 if neither of the limit switches is activated, else returns 1
  • moveToLeftLimit: moves to the left until end is reached
  • moveToRightLimit: moves to the right until end is reached
  • calibrateSledge: calculates the max width steps which the sledge can move
  • [x y] = getPosition: gets the current position from the motors
  • moveToXY(x, y): moves to a specific location