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kattnikattni
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Merge pull request #1 from kattni/cpx-code
Presentation code
2 parents b1b592c + 8a475b7 commit d853952

17 files changed

+242
-0
lines changed

‎cpx_accel_neopixels.py

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from adafruit_circuitplayground.express import cpx
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import time
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# Main loop gets x, y and z axis acceleration, prints the values, and turns on
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# red, green and blue, at levels related to the x, y and z values.
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while True:
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if cpx.switch:
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print("Slide switch off!")
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cpx.pixels.fill((0, 0, 0))
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continue
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else:
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R = 0
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G = 0
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B = 0
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x, y, z = cpx.acceleration
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print(x, y, z)
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if x:
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R = R + abs(int(x))
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if y:
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G = G + abs(int(y))
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if z:
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B = B + abs(int(z))
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cpx.pixels.fill((R, G, B))
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time.sleep(0.2)

‎cpx_accelerometer.py

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import time
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from adafruit_circuitplayground.express import cpx
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while True:
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x, y, z = cpx.acceleration
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print(x, y, z)
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time.sleep(0.5)

‎cpx_blinky.py

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import time
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from adafruit_circuitplayground.express import cpx
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while True:
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cpx.red_led = True
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time.sleep(0.5)
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cpx.red_led = False
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time.sleep(0.5)

‎cpx_button_a.py

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from adafruit_circuitplayground.express import cpx
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while True:
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if cpx.button_a:
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cpx.red_led = True

‎cpx_button_b.py

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from adafruit_circuitplayground.express import cpx
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while True:
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if cpx.button_b:
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cpx.red_led = True
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else:
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cpx.red_led = False

‎cpx_light_sensor.py

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import time
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from adafruit_circuitplayground.express import cpx
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while True:
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print("Lux:", cpx.light)
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time.sleep(1)

‎cpx_neopixel_1.py

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from adafruit_circuitplayground.express import cpx
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cpx.pixels.brightness = 0.3
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while True:
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cpx.pixels[1] = (0, 255, 0)

‎cpx_neopixels_fill.py

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from adafruit_circuitplayground.express import cpx
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while True:
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cpx.pixels.fill((50, 0, 0))

‎cpx_play_tone.py

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from adafruit_circuitplayground.express import cpx
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while True:
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cpx.play_tone(262, 1)

‎cpx_shake.py

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from adafruit_circuitplayground.express import cpx
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while True:
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if cpx.shake():
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print("Shake detected!")

‎cpx_sound_meter.py

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import array
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import audiobusio
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import board
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import math
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import neopixel
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CURVE = 2
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SCALE_EXPONENT = math.pow(10, CURVE * -0.1)
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PEAK_COLOR = (80, 0, 255)
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NUM_PIXELS = 10
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NUM_SAMPLES = 160
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def constrain(value, floor, ceiling):
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return max(floor, min(value, ceiling))
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def log_scale(input_value, input_min, input_max, output_min, output_max):
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normalized_input_value = (input_value - input_min) / (input_max - input_min)
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return output_min + math.pow(normalized_input_value, SCALE_EXPONENT) * (output_max - output_min)
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def normalized_rms(values):
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minbuf = int(mean(values))
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return math.sqrt(sum(float(sample - minbuf) * (sample - minbuf) for sample in values) / len(values))
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def mean(values):
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return sum(values) / len(values)
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def volume_color(i):
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return i * (255 // NUM_PIXELS), 50, 0
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pixels = neopixel.NeoPixel(board.NEOPIXEL, NUM_PIXELS, brightness=0.1, auto_write=False)
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pixels.fill(0)
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pixels.show()
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mic = audiobusio.PDMIn(board.MICROPHONE_CLOCK, board.MICROPHONE_DATA, frequency=16000, bit_depth=16)
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samples = array.array('H', [0] * NUM_SAMPLES)
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mic.record(samples, len(samples))
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input_floor = normalized_rms(samples) + 10
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# Lower number means more sensitive - more LEDs will light up with less sound.
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sensitivity = 500
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input_ceiling = input_floor + sensitivity
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peak = 0
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while True:
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mic.record(samples, len(samples))
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magnitude = normalized_rms(samples)
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print(magnitude)
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c = log_scale(constrain(magnitude, input_floor, input_ceiling),
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input_floor, input_ceiling, 0, NUM_PIXELS)
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pixels.fill(0)
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for i in range(NUM_PIXELS):
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if i < c:
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pixels[i] = volume_color(i)
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if c >= peak:
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peak = min(c, NUM_PIXELS - 1)
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elif peak > 0:
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peak = peak - 1
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if peak > 0:
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pixels[int(peak)] = PEAK_COLOR
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pixels.show()

‎cpx_start_stop_tone.py

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from adafruit_circuitplayground.express import cpx
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while True:
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if cpx.button_a:
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cpx.start_tone(262)
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elif cpx.button_b:
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cpx.start_tone(294)
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else:
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cpx.stop_tone()

‎cpx_temperture_sensor.py

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import time
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from adafruit_circuitplayground.express import cpx
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while True:
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print("Temperature C:", cpx.temperature)
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time.sleep(1)

‎cpx_touch_a1.py

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import time
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from adafruit_circuitplayground.express import cpx
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while True:
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if cpx.touch_A1:
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print("Touched A1!")
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time.sleep(0.1)

‎cpx_touch_all.py

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import time
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from adafruit_circuitplayground.express import cpx
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while True:
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if cpx.touch_A1:
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print("Touched A1!")
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if cpx.touch_A2:
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print("Touched A2!")
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if cpx.touch_A3:
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print("Touched A3!")
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if cpx.touch_A4:
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print("Touched A4!")
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if cpx.touch_A5:
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print("Touched A5!")
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if cpx.touch_A6:
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print("Touched A6!")
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if cpx.touch_A7:
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print("Touched A7!")
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time.sleep(0.1)

‎cpx_touch_fill_rainbow.py

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import time
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from adafruit_circuitplayground.express import cpx
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cpx.pixels.brightness = 0.3
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while True:
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if cpx.touch_A1:
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print("Touched A1!")
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cpx.pixels.fill((255, 0, 0))
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if cpx.touch_A2:
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print("Touched A2!")
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cpx.pixels.fill((210, 45, 0))
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if cpx.touch_A3:
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print("Touched A3!")
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cpx.pixels.fill((155, 100, 0))
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if cpx.touch_A4:
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print("Touched A4!")
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cpx.pixels.fill((0, 255, 0))
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if cpx.touch_A5:
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print("Touched A5!")
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cpx.pixels.fill((0, 135, 125))
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if cpx.touch_A6:
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print("Touched A6!")
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cpx.pixels.fill((0, 0, 255))
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if cpx.touch_A7:
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print("Touched A7!")
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cpx.pixels.fill((100, 0, 155))
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time.sleep(0.1)

‎cpx_touch_pixel_rainbow.py

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import time
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from adafruit_circuitplayground.express import cpx
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cpx.pixels.brightness = 0.3
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while True:
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if cpx.touch_A1:
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print("Touched A1!")
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cpx.pixels[6] = (255, 0, 0)
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if cpx.touch_A2:
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print("Touched A2!")
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cpx.pixels[8] = (210, 45, 0)
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if cpx.touch_A3:
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print("Touched A3!")
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cpx.pixels[9] = (155, 100, 0)
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if cpx.touch_A4:
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print("Touched A4!")
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cpx.pixels[0] = (0, 255, 0)
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if cpx.touch_A5:
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print("Touched A5!")
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cpx.pixels[1] = (0, 135, 125)
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if cpx.touch_A6:
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print("Touched A6!")
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cpx.pixels[3] = (0, 0, 255)
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if cpx.touch_A7:
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print("Touched A7!")
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cpx.pixels[4] = (100, 0, 155)
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time.sleep(0.1)

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