[作品提交] 【得捷电子Follow me第3期】任务6：综合实践（分任务3：开灯提醒器）

from machine import Pin, SoftI2C, ADC, PWM
import ssd1306
import utime
import time

# Buzzer settings
buzzer_pin = Pin(5, Pin.OUT)
buzzer_pwm = PWM(buzzer_pin, freq=440, duty=0)  # 初始频率为440 Hz，初始占空比为0

i2c = SoftI2C(scl=Pin(7), sda=Pin(6))

oled_width = 128
oled_height = 64
oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c)

# 清空屏幕，并显示任务要求
oled.fill(0)
oled.text("Task 6-3", 0, 0)
oled.text("Light:", 0, 16)
oled.show()

# 光照部分
adc = ADC(Pin(2))
adc.atten(ADC.ATTN_11DB)
adc.width(ADC.WIDTH_12BIT)  #4095

while True:

    
    light_adc = adc.read()
    
    # 计算光照强度单位Lux
    light_lux = light_adc * 350 * 1.0 / 4095
    
    # 算出电阻值单位K
    light_res = (4095 - light_adc) * 10.0 / light_adc
    
    print("Light(lux):");
    print('{:.2f}'.format(light_lux))
    print("Light(K):");
    print('{:.2f}'.format(light_res))
    
    # 清除变化部分的内容
    oled.fill_rect(64,16,64,48,0) 
    oled.fill_rect(0,48,128,16,0)
    
    oled.text('{:.2f}'.format(light_lux), 64, 16)
    
    if light_lux < 66:
        print("We need to turn the light on\n");
        oled.text("Turn Light On", 0, 48)
        buzzer_pwm.duty(512)
    else:
        buzzer_pwm.duty(0)
        
    # 在此处更新显示
    oled.show()
    
    # 延时1秒
    time.sleep(1)

效果视频