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tool.py

# Tools

import time
import board
import neopixel


dup = 37  # hyphen

# include audio libraries
try:
    from audiocore import WaveFile
except ImportError:
    from audioio import WaveFile

try:
    from audioio import AudioOut
except ImportError:
    try:
        from audiopwmio import PWMAudioOut as AudioOut
    except ImportError:
        pass  # not always supported by every board!

pixels = neopixel.NeoPixel(
                        board.NEOPIXEL,
                        10,
                        brightness=0.2,
                        auto_write=False
                        )


# LED 全亮
def color_chase_all(color, wait):
    for i in range(10):
        pixels[i] = color
        time.sleep(wait)
        pixels.show()


# 指定某一LED(#idx)亮
def color_chase_1(color, idx, wait):
    pixels[idx] = color
    time.sleep(wait)
    pixels.show()


# 顯示 SGP30 數據
def show_SGP(sgp30):
    print("eCO2 = %d ppm \t TVOC = %d ppb" % (sgp30.eCO2, sgp30.TVOC))
    print("Raw H2 = %d \t Raw Ethanol = %d" % (sgp30.H2, sgp30.Ethanol))
    print("-" * dup)


# 顯示 SGP30 Baseline數據
def show_SGP_baseline(elapsed_sec, sgp30):
    if elapsed_sec > 10:
        elapsed_sec = 0
        print(
            "**** Baseline values: ****\neCO2 = 0x%x, TVOC = 0x%x"
            % (sgp30.baseline_eCO2, sgp30.baseline_TVOC)
        )
        time.sleep(12)
    return elapsed_sec


# 顯示 PMSA003數據
def show_PM25(aqdata):
    print("Concentration Units (standard)")
    print("-" * dup)
    print(
        "PM 1.0: %d\tPM2.5: %d\tPM10: %d" % (
                                            aqdata["pm10 standard"],
                                            aqdata["pm25 standard"],
                                            aqdata["pm100 standard"]
                                            )
    )
    print("Concentration Units (environmental)")
    print("-" * dup)
    print(
        "PM 1.0: %d\tPM2.5: %d\tPM10: %d" % (
                                            aqdata["pm10 env"],
                                            aqdata["pm25 env"],
                                            aqdata["pm100 env"]
                                            )
    )
    print("-" * dup)
    print("Particles > 0.3um / 0.1L air:", aqdata["particles 03um"])
    print("Particles > 0.5um / 0.1L air:", aqdata["particles 05um"])
    print("Particles > 1.0um / 0.1L air:", aqdata["particles 10um"])
    print("Particles > 2.5um / 0.1L air:", aqdata["particles 25um"])
    print("Particles > 5.0um / 0.1L air:", aqdata["particles 50um"])
    print("Particles > 10 um / 0.1L air:", aqdata["particles 100um"])
    print("-" * dup)


# playing an audio file
def play_file(filename):
    print("Playing file: " + filename)
    wave_file = open(filename, "rb")
    with WaveFile(wave_file) as wave:
        with AudioOut(board.SPEAKER) as audio:
            audio.play(wave)
            while audio.playing:
                pass
    # print("Finished")

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