from machine import PWM, UART
import time

'''
循环控制4个灯（ID为1/2/3/4）切换显示。

切换间隔：10秒,每发一次指令板载指示灯高亮爆冷1秒

循环开始：亮度90，60次闪烁，黄色圆
常亮
雾，橙色
能见度低
注意横风
冰，蓝色
道路结冰
红叉
禁止能行，红色
绿箭头动图
允许通行，绿色
动_线形诱导标上双
左右红蓝2次快闪

'''
led = PWM(Pin(25))
uart0 = UART(0, baudrate=9600, tx=Pin(0), rx=Pin(1),timeout=100)   # Lora模块
     
led.freq(50)                 # 板载LED频率         
led.duty_u16(10000)          # 板载指示灯
interval = 10                # 切换间隔
  
def LED_Indicate():
    led.freq(8)
    led.duty_u16(50000)
    time.sleep(1)
    led.freq(50)
    led.duty_u16(10000)

print('000000')
while True:
    # 亮度90，60次闪烁，黄色圆 
    uart0.write(bytearray([0xFF,0x66,0xFF,0x5A,0x00,0xAA,0xFF,0x77,0xFF,0x19,0x19,0xAA,0xFF,0x40,0xFF,0x05,0x02,0x03,0x04,0x00,0xAA,0xFF,0x55,0xFF,0xA1,0xF1,0xAA]))
    print('1 亮度90，60次闪烁，黄色圆')
    LED_Indicate()
    time.sleep(interval)
    
    # 常亮
    uart0.write(bytearray([0xff,0x77,0xff,0x0a,0x00,0xaa]))
    print('2 常亮')
    LED_Indicate()
    time.sleep(interval)
    
    # 雾，橙色
    uart0.write(bytearray([0x40,0xFF,0x05,0x02,0x03,0x04,0x00,0xAA,0xFF,0x55,0xFF,0xCE,0xED,0xAA]))  
    print('3 雾，橙色')      
    LED_Indicate()
    time.sleep(interval)
    
    # 能见度低 C4DC BCFB B6C8 B5CD
    uart0.write(bytearray([0xFF,0x55,0x01,0xC4,0xDC,0xAA,0xFF,0x55,0x02,0xBC,0xFB,0xAA,0xFF,0x55,0x03,0xB6,0xC8,0xAA,0xFF,0x55,0x04,0xB5,0xCD,0xAA]))        
    print('4 能见度低') 
    LED_Indicate()
    time.sleep(interval)
    
    # 注意横风 D7A2 D2E2 BAE1 B7E7
    uart0.write(bytearray([0xFF,0x55,0x01,0xD7,0xA2,0xAA,0xFF,0x55,0x02,0xD2,0xE2,0xAA,0xFF,0x55,0x03,0xBA,0xE1,0xAA,0xFF,0x55,0x04,0xB7,0xE7,0xAA]))        
    print('5 注意横风') 
    LED_Indicate()
    time.sleep(interval)
    
    # 冰，蓝色
    uart0.write(bytearray([0x40,0xFF,0x03,0x02,0x03,0x04,0x00,0xAA,0xFF,0x55,0xFF,0xB1,0xF9,0xAA]))        
    print('6 冰，蓝色') 
    LED_Indicate()
    time.sleep(interval)

    # 道路结冰 B5C0 C2B7 BDE1 B1F9 
    uart0.write(bytearray([0xFF,0x55,0x01,0xB5,0xC0,0xAA,0xFF,0x55,0x02,0xC2,0xB7,0xAA,0xFF,0x55,0x03,0xBD,0xE1,0xAA,0xFF,0x55,0x04,0xB1,0xF9,0xAA]))        
    print('7 道路结冰') 
    LED_Indicate()
    time.sleep(interval)
    
    # 红叉
    uart0.write(bytearray([0xFF,0x55,0xFF,0xA0,0xE0,0xAA]))        
    print('8 红叉') 
    LED_Indicate()
    time.sleep(interval)
    
    # 禁止通行，红色 BDFB D6B9 CDA8 D0D0 
    uart0.write(bytearray([0x40,0xFF,0x01,0x02,0x03,0x04,0x00,0xAA,0xFF,0x55,0x01,0xBD,0xFB,0xAA,0xFF,0x55,0x02,0xD6,0xB9,0xAA,0xFF,0x55,0x03,0xCD,0xA8,0xAA,0xFF,0x55,0x04,0xD0,0xD0,0xAA]))        
    print('9 禁止通行') 
    LED_Indicate()
    time.sleep(interval)
    
    # 绿箭头动图
    uart0.write(bytearray([0xFF,0x55,0xFF,0xA0,0xFB,0xAA]))        
    print('10 绿箭头动图') 
    LED_Indicate()
    time.sleep(interval)
    
    # 允许通行，绿色 D4CA D0ED CDA8 D0D0 
    uart0.write(bytearray([0x40,0xFF,0x02,0x02,0x03,0x04,0x00,0xAA,0xFF,0x55,0x01,0xD4,0xCA,0xAA,0xFF,0x55,0x02,0xD0,0xED,0xAA,0xFF,0x55,0x03,0xCD,0xA8,0xAA,0xFF,0x55,0x04,0xD0,0xD0,0xAA]))        
    print('11 允许通行，绿色') 
    LED_Indicate()
    time.sleep(interval)

    # 动_线形诱导标上双
    uart0.write(bytearray([0xFF,0x55,0xFF,0xA0,0xFA,0xAA]))
    print('12 动_线形诱导标上双') 
    LED_Indicate()
    time.sleep(interval)
    
    # 动_线形诱导标上双
    uart0.write(bytearray([0xFF,0x55,0xFF,0xA0,0xF3,0xAA]))
    print('13 动_线形诱导标上双') 
    LED_Indicate()
    time.sleep(interval)