基于ESP8266的NODEMCU气象站OLED显示，程序用LUA写成。话不多说上源码，有什么不懂的地方可以给我留言。或者关注我的公众号，会不定时推送一些东西。

OUTtemp=""
city=""
wea=""
lasttime =""
IO_BLINK = 4

TMR_WIFI = 4
TMR_BLINK = 5

gpio.mode(IO_BLINK, gpio.OUTPUT)
---------------------
-- blink
---------------------
blink = nil


print('Setting up WIFI...')
wifi.setmode(wifi.STATIONAP )
file.open("zhanghu.txt", "r")

mingzi=file.readline(1)
mingzi=string.sub(mingzi, 1, -2)

mima=file.readline(2)
mima=string.sub(mima, 1, -2)
file.close()
print(mingzi)
print(mima)
station_cfg={}
station_cfg.ssid=mingzi
station_cfg.pwd=mima
wifi.sta.config(station_cfg)

wifi.sta.autoconnect(1)

status=nil

-- http
---------------------
dofile('httpServer.lua')
httpServer:listen(80)

httpServer:use('/config', function(req, res)
    if req.query.ssid ~= nil and req.query.pwd ~= nil then
    station_cfg={}
station_cfg.ssid=req.query.ssid
station_cfg.pwd=req.query.pwd
wifi.sta.config(station_cfg)
file.open("zhanghu.txt", "w+")
file.writeline(req.query.ssid)
file.writeline(req.query.pwd)

file.close()
      --  wifi.sta.config(req.query.ssid, req.query.pwd)

        status = 'STA_CONNECTING'
        status_sleep=0
        tmr.alarm(TMR_WIFI, 1000, tmr.ALARM_AUTO, function()
            status_sleep=status_sleep+1

            if(status_sleep==10) then
                   res:type('application/json')
                res:send('{"status":"timeout"}')
                tmr.stop(TMR_WIFI)    
             end
            
            if status ~= 'STA_CONNECTING'  then
                res:type('application/json')
                res:send('{"status":"' .. status .. '"}')
                tmr.stop(TMR_WIFI)                
            end
            
        end)
    end
end)

-- Get json
httpServer:use('/scanap', function(req, res)

  wifi.sta.getap(function(table)
        local aptable = {}
        for ssid,v in pairs(table) do
            local authmode, rssi, bssid, channel = string.match(v, "([^,]+),([^,]+),([^,]+),([^,]+)")
            aptable[ssid] = {
                authmode = authmode,
                rssi = rssi,
                bssid = bssid,
                channel = channel
            }
        end
        res:type('application/json')
        res:send(sjson.encode(aptable))  
    end)
end)

---------get tianqiwendu
tmr.alarm(3, 15000, tmr.ALARM_AUTO,function() --每15秒获取天气信息conn=net.createConnection(net.TCP, 0) 
conn:connect(80,"api.thinkpage.cn")
conn:on("receive", function(conn, payload)
--print("weather get"..payload) 

--city=string.sub(payload,string.find(payload,"name")+7,string.find(payload,"country")-4)
wea=string.sub(payload,string.find(payload,"text")+7,string.find(payload,"code")-4)
OUTtemp=string.sub(payload,string.find(payload,"temperature")+14,string.find(payload,"last_update")-5)
lasttime=string.sub(payload,string.find(payload,"GMT")-9,string.find(payload,"GMT")-2)
--print("CITY:"..city.."\r\n")
print("WEATHER:"..wea)
print("TEMP:"..OUTtemp)
--print("TIME:"..lasttime.."\r\n")
hour=string.sub(lasttime,1,2)+8
minints=string.sub(lasttime,4,5)

nowtime=hour..":"..minints---..":"..seconds
print(nowtime)

end )
conn:on("connection", function(conn, payload)
conn:send("GET /v3/weather/now.json?key=lkvdhpaemyl8vgme&location=xian&language=en".." HTTP/1.1\r\n".."Host: ".."api.thinkpage.cn".. "\r\n".."Connection: close\r\n\r\n")

end
)

end)
-----------------get pm2.5
tmr.alarm(5, 30000, tmr.ALARM_AUTO,function() 
conn1=net.createConnection(net.TCP, 0) 
conn1:connect(80,"www.pm25.in")
conn1:on("receive", function(conn, payload1)
--print("pm25get"..payload1) 

 ii=string.find(payload1,"pm2")

if ii~=nil then
--print("pm weishu is:"..ii)
pm25=string.sub(payload1,ii+7,ii+9)
print("PM25:"..pm25.."\r\n")
end

end )
conn1:on("connection", function(conn, payload1)
conn1:send("GET /api/querys/aqi_details.json?city=xian&token=5j1znBVAsnSf5xQyNQyq&stations=no".." HTTP/1.1\r\n".."Host: ".."www.pm25.in".. "\r\n".."Connection: close\r\n\r\n")

end
)

end)

------------------------
tmr.alarm(2, 1000, tmr.ALARM_AUTO,
     
   function()
if wifi.sta.getip()~= nil then
dofile("script2.lua")
tmr.stop(2)
else
print("wait connect..")
end
end)

这是init文件的内容。其中用到两个LUA文件，一个是dofile('httpServer.lua')。一个是dofile("script2.lua")，第二个文件是OLED显示用的，用来驱动0.96的oled显示器采用SPI驱动，接线可以看我其他简书有相关内容，pin6驱动DHT11采集温湿度信息。显示数据。下面是oled驱动文件源代码：script2.lua

cs  = 8 
dc  = 2 -- D2
res = 0 -- D0
pin=6
--require"init"
spi.setup(1, spi.MASTER, spi.CPOL_LOW, spi.CPHA_LOW, 8, 8)
gpio.mode(8, gpio.INPUT, gpio.PULLUP)
disp = u8g.ssd1306_128x64_hw_spi(cs, dc, res)
disp:setFont(u8g.font_6x10)


 
str = "AIRSTAION"

function task()    
   
    status,temp,humi,temp_dec,humi_dec=dht.read11(pin)
    if status == dht.OK then    
        print(string.format("DHT Temperature:%d.%03d;Humidity:%d.%03d\r\n",
          math.floor(temp),
          temp_dec,
          math.floor(humi),
          humi_dec
        ))
        temp1=math.floor(temp)
        humi1=math.floor(humi)
        elseif status == dht.ERROR_CHECKSUM then
        print("DHT Checksum error.")
    elseif status ==dht.ERROR_TIMEOUT then
      --  print("DHT timed out.")
   
    end    
end

function draw()    
    task()
 
      if  wifi.sta.getip()~= nil then
      disp:drawStr(0, 60, "Net OK")
      else 
      disp:drawStr(0, 60, "NO Net")
      end
    disp:drawStr(0, 15, str)
     disp:drawStr(0, 30,"OutAir:")
  
   if wea~=nil and OUTtemp~=nil then
    disp:drawStr(43, 30,wea)
   disp:drawStr(96, 30,OUTtemp.." C")
   end
   if nowtime~=nil then
   disp:drawStr(80, 60,nowtime)
   end
   disp:drawStr(0,40,"InAir:")
    disp:drawStr(43, 40,temp1.." C")
    disp:drawStr(80, 40,humi1.." %")
     disp:drawStr(0, 50, "PM2.5:")
     if pm25~=nil then
      disp:drawStr(45, 50, pm25)
      end
end

tmr.alarm(6, 3000, tmr.ALARM_AUTO, function()
    
    disp:firstPage()
    while (disp:nextPage())
    do 
        draw()
    end
end)

405D9B1E696546CA41CD8D40B0A7B5A3.png

后附RAR文件下载。