### ex4-1 ###

from machine import Pin, PWM
import time

buzzer = PWM(Pin(5, Pin.OUT))
buzzer.freq(392)
buzzer.duty(512)
time.sleep(2)
buzzer.duty(0)
buzzer.freq(0)


### ex4-2 (Lab06.py) ###

from machine import Pin, PWM
import time

buzzer = PWM(Pin(5))
buzzer.duty(512)

buzzer.freq(392)
time.sleep(.5)
buzzer.freq(330)
time.sleep(.5)
buzzer.freq(330)
time.sleep(1.)
buzzer.freq(349)
time.sleep(.5)
buzzer.freq(294)
time.sleep(.5)
buzzer.freq(294)
time.sleep(1.)
buzzer.freq(261)
time.sleep(.5)
buzzer.freq(294)
time.sleep(.5)
buzzer.freq(330)
time.sleep(.5)
buzzer.freq(349)
time.sleep(.5)
buzzer.freq(392)
time.sleep(.5)
buzzer.freq(392)
time.sleep(.5)
buzzer.freq(392)
time.sleep(.5)

buzzer.duty(0)		# 關閉蜂鳴器



### ex4-3 (加入休止符的 Lab06.py) ###

from machine import Pin, PWM
import time

buzzer = PWM(Pin(5))
buzzer.duty(512)

buzzer.freq(392)
time.sleep(.5)
buzzer.freq(330)
time.sleep(.5)
buzzer.freq(330)
time.sleep(.5)
buzzer.duty(0)
time.sleep(.5)
buzzer.duty(512)
buzzer.freq(349)
time.sleep(.5)
buzzer.freq(294)
time.sleep(.5)
buzzer.freq(294)
time.sleep(.5)
buzzer.duty(0)
time.sleep(.5)
buzzer.duty(512)
buzzer.freq(261)
time.sleep(.5)
buzzer.freq(294)
time.sleep(.5)
buzzer.freq(330)
time.sleep(.5)
buzzer.freq(349)
time.sleep(.5)
buzzer.freq(392)
time.sleep(.5)
buzzer.freq(392)
time.sleep(.5)
buzzer.freq(392)
time.sleep(.5)

buzzer.duty(0)		# 關閉蜂鳴器



### ex4-4 (使用 for 迴圈與串列容器改寫 Lab06.py) ###

from machine import Pin, PWM
import time

buzzer = PWM(Pin(5))

#|5 3 3 -|4 2 2 -|1 2 3 4 5 5 5|，0 表示休止符
notes = [
    392, 330, 330, 0, 
    349, 294, 294, 0,
    262, 294, 330, 349, 392, 392, 392, 0]

for note in notes:		# 一一取出音符
    if note == 0:		# 休止符不發音
        buzzer.duty(0)
    else:
        buzzer.duty(512)	# 設定為一半音量
        buzzer.freq(note)	# 依照音符設定頻率

    time.sleep(0.2)		# 讓聲音持續 02秒
    buzzer.duty(0)		# 停止發聲
    time.sleep(0.1)		# 持續無聲 01 秒



### ex4-5 (使用 for 迴圈與 PWN 設計呼吸燈) ###

from machine import Pin, PWM
import time

led = PWM(Pin(2))

while True:
    for i in range(0, 1024, 10):	# range() 會產生 0 到 1024 但不包含 1024，間隔為 10 的數列
        led.duty(i)   			# 設定 PWM 輸出值控制 LED 亮度
        time.sleep(0.01)



### ex4-6 ###

from machine import Pin, PWM
from rtttl import RTTTL
import time

buzzer = PWM(Pin(5))
buzzer.duty(0)

def play_tone(freq, msec):
    if freq > 0:        
        buzzer.freq(freq)
        buzzer.duty(512)
        time.sleep(msec * 0.001)  
        buzzer.duty(0)          
    time.sleep(0.05)

print('play music')
tune = RTTTL("winner:d=4, o=5, b=140:16e6, 16e6, 32p, 8e6, 16c6, 8e6, 8g6, 8p, 8g, 8p, 8c6, 16p, 8g, 16p, 8e, 16p, 8a, 8b, 2e6")

for freq, msec in tune.notes():
    play_tone(freq, msec)

buzzer.duty(0)



### ex4-7 ###

# Teachable Machine 官網
https://teachablemachine.withgoogle.com/train



### ex4-8 (Lab07.py) ###

import network
from machine import Pin, PWM
from time import sleep_ms
from umqtt.robust import MQTTClient

buzzer = PWM(Pin(5))
buzzer.freq(400)			# 設定蜂鳴器發聲頻率
buzzer_on = 0				# 建立變數作為警報狀態
 
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)
sta_if.connect("無線網路名稱", "無線網路密碼")

while not sta_if.isconnected():  
    pass
print("控制板已連線")

# 建立 MQTT 客戶端物件
client = MQTTClient(
    client_id = "D1mini",
    server = "io.adafruit.com", 
    user = "AIO 帳號",
    password = "AIO 金鑰",
    ssl = False)

# 註冊收到訂閱資料時的處理函式 
def get_cmd(topic, msg):
    global buzzer_on
    print(topic, msg)
    if msg == b"100":
        buzzer_on = 1
        print('NO MASK!') 
    else:
        buzzer_on = 0
        print('CLEAR.')

# 蜂鳴器發聲函式
def buzz():
    buzzer.duty(512)
    sleep_ms(200)
    buzzer.duty(0)
    sleep_ms(200)

client.connect()
client.set_callback(get_cmd)
client.subscribe(client.user.encode() + b"/feeds/mask");

while True:   
    client.check_msg()

    if buzzer_on :		    # 判斷狀態是否需要發聲
        buzz()



### ex4-9 ###

https://flagtech.github.io/FM633A/lab07.html



### ex4-10 (Lab08.py) ###

import network, time
from machine import Pin, PWM
from umqtt.robust import MQTTClient
from rtttl import RTTTL

buzzer = PWM(Pin(5))
buzzer.duty(0)

def play_tone(freq, msec):
    if freq > 0:        
        buzzer.freq(freq)
        buzzer.duty(512)
        time.sleep(msec * 0.001)  
        buzzer.duty(0)          
    time.sleep(0.05)

sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)
sta_if.connect("無線網路基地台", "無線網路密碼")

while not sta_if.isconnected():  
    pass
print("控制板已連線")

client = MQTTClient(
    client_id = "D1mini", 
    server = "io.adafruit.com", 
    user = "AIO 帳號", 
    password = "AIO 金鑰",
    ssl = False)
    
# 註冊收到訂閱資料時的處理函式   
def get_cmd(topic, msg):
    print(topic, msg)

    if msg == b"100":
        print('play music')
        tune = RTTTL("winner:d=4, o=5, b=140:16e6, 16e6, 32p, 8e6, 16c6, 8e6, 8g6, 8p, 8g, 8p, 8c6, 16p, 8g, 16p, 8e, 16p, 8a, 8b, 2e6")

        for freq, msec in tune.notes():
            play_tone(freq, msec)

        buzzer.duty(0)
   
client.connect()
client.set_callback(get_cmd)
client.subscribe(client.user.encode() + b"/feeds/cardgame");

while True:       
    client.check_msg()



### ex4-11 ###

https://flagtech.github.io/FM633A/lab08.html



### ex4-12 ###

# IFTTT
https://ifttt.com/



### ex4-13 ###

https://flagtech.github.io/FM633A/lab09.html