### lab4-1 ###

from machine import Pin, I2C
from ssd1306 import SSD1306_I2C
import bh1750fvi, utime
 
i2c = I2C(scl = Pin(5), sda = Pin(4))
oled = SSD1306_I2C(128, 64, i2c)

while True:
    
    light_level = bh1750fvi.sample(i2c, mode = 0x23)
    
    oled.fill(0)
    oled.text("Light level:", 0, 0)
    oled.text(str(light_level) + " lux", 0, 16)
    oled.show()
    print("偵測亮度: " + str(light_level) + " lux")



### lab4-2 ###

from machine import Pin, PWM, I2C
from ssd1306 import SSD1306_I2C
import bh1750fvi, utime

i2c = I2C(scl = Pin(5), sda = Pin(4))
oled = SSD1306_I2C(128, 64, i2c)

buzzer = PWM(Pin(15, Pin.OUT), freq = 110, duty = 0)

while True:
    
    light_level = bh1750fvi.sample(i2c, mode = 0x23)
    print("偵測亮度: " + str(light_level) + " lux")
    
    oled.fill(0)
    oled.text("Light level:", 0, 0)
    oled.text(str(light_level) + " lux", 0, 16)
    
    if 20 < light_level < 300:
        oled.text("!! Warning !!", 0, 32)
        oled.text("TOO DARK", 0, 48)
        print("警告 !! 亮度不足 !!")
        buzzer.freq(110)
        buzzer.duty(512)
    
    else:
        buzzer.duty(0)
    
    oled.show()



### lab4-3 ###

from machine import Pin, I2C, PWM
import bh1750fvi, utime

score = 0
buzzer = PWM(Pin(15, Pin.OUT), freq = 784, duty = 0)

while score < 10:

    light_level = bh1750fvi.sample(I2C(scl = Pin(5), sda=Pin(4)), mode = 0x23)
    print("偵測亮度: " + str(light_level) + " lux, 得分: " + str(score))
    
    if light_level > 10000:
        
        print("==== 命中! ====")
        score += 1
        
        # 播放得分音效
        buzzer.freq(784)
        buzzer.duty(512)
        utime.sleep_ms(100)
        buzzer.freq(988)
        utime.sleep_ms(300)
        buzzer.duty(0)
    
    utime.sleep_ms(10)
    
print("=== 遊戲結束! ===")

# 播放遊戲結束音效
buzzer.freq(784)
buzzer.duty(512)
utime.sleep_ms(100)
buzzer.freq(659)
utime.sleep_ms(100)
buzzer.freq(523)
utime.sleep_ms(300)
buzzer.duty(0)



### lab4-4 ###

from machine import Pin, I2C, PWM
import bh1750fvi, utime

def getLightLevel():
    data = bh1750fvi.sample(I2C(scl = Pin(5), sda = Pin(4)), mode = 0x23)
    return data

buzzer = PWM(Pin(15, Pin.OUT), freq = 768, duty = 0)

count = 0
print("系統校準中, 請讓雷射持續照射在亮度感測器5秒鐘...")

while count < 5:	# 雷射校準迴圈
    
    light_level = getLightLevel()
    
    if light_level > 10000:	# 偵測到雷射光
        count += 1
        print("已校準 " + str(count) + " 秒...")
    else:
        count = 0		# 歸零重新校準
    
    utime.sleep_ms(1000)

while True:		# 雷射偵測迴圈

    light_level = getLightLevel()
    
    if light_level < 10000:	# 雷射光被遮斷
        print("!! 警報觸發 !!")
        buzzer.duty(512)
    
    else:
        buzzer.duty(0)
        print("-- 待命中 --")