from machine import UART, Pin
import time

uart = UART(1, baudrate=115200, tx=1, rx=3)

# 初始化 LED 引脚
led = Pin(15,Pin.OUT)


uart.write("\rPlease enter 1 or 0,1 is open led,0 is close led：\n")

while True:
    uart.write("\r")  
    if uart.any():
       
        data = uart.read()
        print("Received:", data)  # 在 REPL 中打印接收到的数据
               
        # 如果收到 '1'，点亮 LED 并输出 1（靠最左边输出）
        if data == b'1':
            led.value(1)  # 点亮 LED
            uart.write("\rinput 1, LED is ON.\n")  # 在串口监视器中靠最左边输出输出状态
                   
        # 如果收到 '0'，熄灭 LED 并输出 0（靠最左边输出）
        elif data == b'0':
            led.value(0)  
            uart.write("\rinput 0, LED is OFF.\n")  
            # 在串口监视器中靠最左边输出输出状态
        
        # 如果输入无效，提示重新输入
        else:
            uart.write("\rInvalid input! Please enter 1 or 0.\n")