diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/accellog.py | 14 | ||||
| -rw-r--r-- | examples/conwaylife.py | 43 | ||||
| -rw-r--r-- | examples/lcd.py | 36 | ||||
| -rw-r--r-- | examples/ledangle.py | 22 | ||||
| -rw-r--r-- | examples/mandel.py | 32 | ||||
| -rw-r--r-- | examples/pyb.py | 11 |
6 files changed, 146 insertions, 12 deletions
diff --git a/examples/accellog.py b/examples/accellog.py new file mode 100644 index 0000000000..81f44f19a8 --- /dev/null +++ b/examples/accellog.py @@ -0,0 +1,14 @@ +# log the accelerometer values to a file, 1 per second + +f = open('motion.dat', 'w') # open the file for writing + +for i in range(60): # loop 60 times + time = pyb.time() # get the current time + accel = pyb.accel() # get the accelerometer data + + # write time and x,y,z values to the file + f.write('{} {} {} {}\n'.format(time, accel[0], accel[1], accel[2])) + + pyb.delay(1000) # wait 1000 ms = 1 second + +f.close() # close the file diff --git a/examples/conwaylife.py b/examples/conwaylife.py new file mode 100644 index 0000000000..fb62ce69e8 --- /dev/null +++ b/examples/conwaylife.py @@ -0,0 +1,43 @@ +# do 1 iteration of Conway's Game of Life +def conway_step(): + for x in range(128): # loop over x coordinates + for y in range(32): # loop over y coordinates + # count number of neigbours + num_neighbours = (lcd.get(x - 1, y - 1) + + lcd.get(x, y - 1) + + lcd.get(x + 1, y - 1) + + lcd.get(x - 1, y) + + lcd.get(x + 1, y) + + lcd.get(x + 1, y + 1) + + lcd.get(x, y + 1) + + lcd.get(x - 1, y + 1)) + + # check if the centre cell is alive or not + self = lcd.get(x, y) + + # apply the rules of life + if self and not (2 <= num_neighbours <= 3): + lcd.reset(x, y) # not enough, or too many neighbours: cell dies + elif not self and num_neighbours == 3: + lcd.set(x, y) # exactly 3 neigbours around an empty cell: cell is born + +# randomise the start +def conway_rand(): + lcd.clear() # clear the LCD + for x in range(128): # loop over x coordinates + for y in range(32): # loop over y coordinates + if pyb.rand() & 1: # get a 1-bit random number + lcd.set(x, y) # set the pixel randomly + +# loop for a certain number of frames, doing iterations of Conway's Game of Life +def conway_go(num_frames): + for i in range(num_frames): + conway_step() # do 1 iteration + lcd.show() # update the LCD + +# PC testing +import lcd +import pyb +lcd = lcd.LCD(128, 32) +conway_rand() +conway_go(100) diff --git a/examples/lcd.py b/examples/lcd.py new file mode 100644 index 0000000000..3303337bfb --- /dev/null +++ b/examples/lcd.py @@ -0,0 +1,36 @@ +# LCD testing object for PC +# uses double buffering +class LCD: + def __init__(self, width, height): + self.width = width + self.height = height + self.buf1 = [[0 for x in range(self.width)] for y in range(self.height)] + self.buf2 = [[0 for x in range(self.width)] for y in range(self.height)] + + def clear(self): + for y in range(self.height): + for x in range(self.width): + self.buf1[y][x] = self.buf2[y][x] = 0 + + def show(self): + print('') # blank line to separate frames + for y in range(self.height): + for x in range(self.width): + self.buf1[y][x] = self.buf2[y][x] + for y in range(self.height): + row = ''.join(['*' if self.buf1[y][x] else ' ' for x in range(self.width)]) + print(row) + + def get(self, x, y): + if 0 <= x < self.width and 0 <= y < self.height: + return self.buf1[y][x] + else: + return 0 + + def reset(self, x, y): + if 0 <= x < self.width and 0 <= y < self.height: + self.buf2[y][x] = 0 + + def set(self, x, y): + if 0 <= x < self.width and 0 <= y < self.height: + self.buf2[y][x] = 1 diff --git a/examples/ledangle.py b/examples/ledangle.py new file mode 100644 index 0000000000..35c9148a49 --- /dev/null +++ b/examples/ledangle.py @@ -0,0 +1,22 @@ +def led_angle(seconds_to_run_for): + # make LED objects + l1 = pyb.Led(1) + l2 = pyb.Led(2) + + for i in range(20 * seconds_to_run_for): + # get x-axis + accel = pyb.accel()[0] + + # turn on LEDs depending on angle + if accel < -10: + l1.on() + l2.off() + elif accel > 10: + l1.off() + l2.on() + else: + l1.off() + l2.off() + + # delay so that loop runs at at 1/50ms = 20Hz + pyb.delay(50) diff --git a/examples/mandel.py b/examples/mandel.py index b13b7d87f8..996132a915 100644 --- a/examples/mandel.py +++ b/examples/mandel.py @@ -1,14 +1,22 @@ -@micropython.native -def in_set(c): - z = 0 - for i in range(40): - z = z*z + c - if abs(z) > 60: - return False - return True +def mandelbrot(): + # returns True if c, complex, is in the Mandelbrot set + @micropython.native + def in_set(c): + z = 0 + for i in range(40): + z = z*z + c + if abs(z) > 60: + return False + return True -for v in range(31): - line = [] + lcd.clear() for u in range(91): - line.append('*' if in_set((u / 30 - 2) + (v / 15 - 1) * 1j) else ' ') - print(''.join(line)) + for v in range(31): + if in_set((u / 30 - 2) + (v / 15 - 1) * 1j): + lcd.set(u, v) + lcd.show() + +# PC testing +import lcd +lcd = lcd.LCD(128, 32) +mandelbrot() diff --git a/examples/pyb.py b/examples/pyb.py new file mode 100644 index 0000000000..5e24f40e4a --- /dev/null +++ b/examples/pyb.py @@ -0,0 +1,11 @@ +# pyboard testing functions for PC + +def delay(n): + pass + +rand_seed = 1 +def rand(): + global rand_seed + # for these choice of numbers, see P L'Ecuyer, "Tables of linear congruential generators of different sizes and good lattice structure" + rand_seed = (rand_seed * 653276) % 8388593 + return rand_seed |