ESP8266 定时开关 [Micropython]

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0. 引脚表

ESP8266 裸板是 22 个引脚。

ESP8266 NodeMCU 比较常见的是 ESP-12E， 开发板总共有30个引脚。

  • 开发板的引脚设置了新的丝印编码，与GPIO标号对应需要看图。
  • 在裸板的基础上增加了 3对电源引脚、一对RSV引脚。
  • 增加了一个 MicroUSB口、一个LED灯、两个按键，可以方便调试。

引脚如下图所示：



注意：开机之后有的引脚是默认上电的!!!
https://zhuanlan.zhihu.com/p/568057038
https://www.yiboard.com/thread-1834-1-1.html

1. 定时开关

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from machine import Pin

import network
import time
import ntptime

import uasyncio as asyncio

# === 0. wifi config ==========================
ssid = 'xxxx'
pswd = 'cccc'

led = Pin(2, Pin.OUT)
led.on()

async def wifi_connect():
    while True:
        try:
            wlan = network.WLAN(network.STA_IF)
            wlan.active(True)
            wlan.connect(ssid, pswd)

            status = wlan.ifconfig()
            print('wifi={}  ip={}'.format(ssid, status[0]))
            print(time.localtime(), 'wifi time')
            led.off()
            await asyncio.sleep(300)
            
        except Exception as e:
            led.on()
            print('ERROR', e)

# === 1. ntp update ==========================
async def ntp_update():
    while True:
        try:
            # https://www.pool.ntp.org/zone/cn
            ntptime.host = 'cn.pool.ntp.org'
            ntptime.settime()
            now = time.localtime(time.time() + 8*3600)
            print(now, ntptime.host)
            led.off()
            await asyncio.sleep(300)
            
        except Exception as e:
            led.on()
            print('ERROR', e)

# === 2. light control ==========================
light = Pin(5, Pin.OUT)
light.on()

async def led_control():
    while True:
        try:
            now = time.localtime(time.time() + 8*3600)
            hh, mm, ss = now[3], now[4], now[5]
            
            if hh not in range(7, 22):
                light.on()
            else:
                light.off()
            
            await asyncio.sleep(3)
            
        except Exception as e:
            print('ERROR', e)


loop = asyncio.get_event_loop()
loop.create_task(wifi_connect())
loop.create_task(ntp_update())
loop.create_task(led_control())

loop.run_forever()