剛學esp8266不久,經(jīng)過各種碰壁,總算將DHT11數(shù)據(jù)傳到貝殼上了.

第一次發(fā)帖,不足之處還請指正!

準備:

1.       esp8266

2.       DHT11傳感器

3.       含(DHT,CJSON)的固件（自己定制）http://nodemcu-build.com/(DHT模塊可以很方便的讀出傳感器的數(shù)據(jù),開始不知道,花了好多時間在讀數(shù)據(jù),還總出錯)

4.       NodeMCU Studio 2015_beta0.3工具NodeMcu Studio 2015_beta0.3.rar

5.       果云ESP8266輔助工具果云ESP8266調(diào)試助手V1.1.zip

(可用于調(diào)試,先不上傳至貝殼,可以先嘗試將命令發(fā)送到本機服務器上,看命令是否符合貝殼通訊協(xié)議)

接線蠻簡單(AOSONG面朝上,從左至右分別是GND,NC,OUT,VCC)

代碼：

local temp=0

local humi=0

pin=2

--wifi station configured

wifi.setmode(wifi.STATION)

wifi.sta.config("ssid","password ")

wifi.sta.connect()

 cnt = 0

--connect

 tmr.alarm(1, 1000, 1, function() 

    if (wifi.sta.getip() == nil) and (cnt < 20) then 

      print("IP unavaiable, Waiting...")

      cnt = cnt + 1 

    else 

    tmr.stop(1)

    if (cnt < 20) then 

print("Config done, IP is "..wifi.sta.getip())

--please input your deceive parameters

DEVICEID = "設備ID"

APIKEY = "設備APIKEY"

INPUTID1 = "數(shù)據(jù)口1ID"

INPUTID2 = "數(shù)據(jù)口2ID"

host=host or "m.placeboworld.cn"

port=port or 8181 

cu = net.createConnection(net.TCP) 

cu:connect(port, host)

ok, s = pcall(cjson.encode, {M="checkin",ID=DEVICEID,K=APIKEY})

if ok then

print(s)

else

print("failed to encode!")

end

cu:send(s.."\n" )

--keeping the on-line state

tmr.alarm(1, 60000, 1, function()

cu:send(s.."\n" )

end)

--update the data and output 

tmr.alarm(2, 5000, 1, function()

status, temp, humi, temp_dec, humi_dec = dht.read(pin)

if status == dht.OK then

print("DHT Temperature:"..temp..";".."Humidity:"..humi.."%")

elseif status == dht.ERROR_CHECKSUM then

print( "DHT Checksum error." )

elseif status == dht.ERROR_TIMEOUT then

print( "DHT timed out." )

end

--uploading command

str="{\"M\":\"update\",\"ID\":\""..DEVICEID.."\",\"V\":{\""..INPUTID1.."\":"..temp..",\""..INPUTID2.."\":"..humi.."}}\n"

cu:send(str)

end)

else print("Wifi setup time more than 20s, Please verify wifi.sta.config() function. Then re-download the file.")

    end

end

 end)

注意：1.數(shù)據(jù)獲取和上傳命令放在同一個定時器下（

status, temp, humi, temp_dec, humi_dec = dht.read(pin)

str="{\"M\":\"update\",\"ID\":\""..DEVICEID.."\",\"V\":{\""..INPUTID1.."\":"..temp..",\""..INPUTID2.."\":"..humi.."}}\n"

cu:send(str)

）

2.沒有返回“welcome to m.placeboworld.cn”,但設備是可以上線的，需要等會。

加上

cu:on("receive", function(cu, c) 

print(c)

end）就有返回了