代碼：
#include <aJSON.h>
#include <Wire.h>
#include <LiquidCrystal.h>
//============= 此處必須修改============
String DEVICEID="4016"; // 你的設(shè)備ID=======
String APIKEY="76b604c5d"; // 設(shè)備密碼==
String INPUTID="3616";//接口ID==============
//=======================================
LiquidCrystal lcd(12,11,5,4,3,2);
const int LM35 = 0;// LM35 Vout 接 A0
unsigned long lastCheckInTime = 0; //記錄上次報(bào)到時(shí)間
unsigned long lastUpdateTime = 0;//記錄上次上傳數(shù)據(jù)時(shí)間
const unsigned long postingInterval = 40000; // 每隔40秒向服務(wù)器報(bào)到一次
const unsigned long updateInterval = 5000; // 數(shù)據(jù)上傳間隔時(shí)間5秒
String inputString = "";//串口讀取到的內(nèi)容
boolean stringComplete = false;//串口是否讀取完畢
boolean CONNECT = true; //連接狀態(tài)
boolean isCheckIn = false; //是否已經(jīng)登錄服務(wù)器
char* parseJson(char *jsonString);//定義aJson字符串
void setup() {
Serial.begin(115200);
lcd.begin(16,2);
lcd.print("Temperature:");
delay(10000);
}
void loop() {
if(millis() - lastCheckInTime > postingInterval || lastCheckInTime==0) {
checkIn();
}
if(millis() - lastUpdateTime > updateInterval) {
float val;//定義變量
int dat;//定義變量
dat=analogRead( LM35 );// 讀取傳感器的模擬值并賦值給dat
//val=(125*dat)>>8;//溫度計(jì)算公式
val = dat * (4.76 / 1023.0*100);
update1(DEVICEID,INPUTID,val);
lcd.setCursor(0,1);
lcd.print(val);
}
serialEvent();
if (stringComplete) {
inputString.trim();
//Serial.println(inputString);
if(inputString=="CLOSED"){
Serial.println("connect closed!");
CONNECT=false;
isCheckIn=false;
}else{
int len = inputString.length()+1;
if(inputString.startsWith("{") && inputString.endsWith("}")){
char jsonString[len];
inputString.toCharArray(jsonString,len);
aJsonObject *msg = aJson.parse(jsonString);
processMessage(msg);//處理接收到的Json數(shù)據(jù)
aJson.deleteItem(msg);
}
}
inputString = "";
stringComplete = false;
}
}
void checkIn() {
if (!CONNECT) {
Serial.print("+++");
delay(500);
Serial.print("\r\n");
delay(1000);
Serial.print("AT+RST\r\n");
delay(6000);
CONNECT=true;
lastCheckInTime==0;
}
else{
Serial.print("{\"M\":\"checkin\",\"ID\":\"");
Serial.print(DEVICEID);
Serial.print("\",\"K\":\"");
Serial.print(APIKEY);
Serial.print("\"}\r\n");
lastCheckInTime = millis();
}
}
void processMessage(aJsonObject *msg){
aJsonObject* method = aJson.getObjectItem(msg, "M");
aJsonObject* content = aJson.getObjectItem(msg, "C");
aJsonObject* client_id = aJson.getObjectItem(msg, "ID");
//char* st = aJson.print(msg);
if (!method) {
return;
}
//Serial.println(st);
//free(st);
String M=method->valuestring;
if(M=="checkinok"){
isCheckIn = true;
}
}
void update1(String did, String inputid, float value){
Serial.print("{\"M\":\"update\",\"ID\":\"");
Serial.print(did);
Serial.print("\",\"V\":{\"");
Serial.print(inputid);
Serial.print("\":\"");
Serial.print(value);
Serial.println("\"}}");
lastCheckInTime = millis();
lastUpdateTime= millis();
}
void serialEvent() {
while (Serial.available()) {
char inChar = (char)Serial.read();
inputString += inChar;
if (inChar == '\n') {
stringComplete = true;
}
}
}
//同時(shí)上傳兩個(gè)接口數(shù)據(jù)調(diào)用此函數(shù)
void update2(String did, String inputid1, float value1, String inputid2, float value2){
Serial.print("{\"M\":\"update\",\"ID\":\"");
Serial.print(did);
Serial.print("\",\"V\":{\"");
Serial.print(inputid1);
Serial.print("\":\"");
Serial.print(value1);
Serial.print("\",\"");
Serial.print(inputid2);
Serial.print("\":\"");
Serial.print(value2);
Serial.println("\"}}");
lastCheckInTime = millis();
lastUpdateTime= millis();
}

調(diào)試的時(shí)候是能連上網(wǎng)頁的，整合LCD和ESP8266后在網(wǎng)頁上就顯示不在線了。LCD顯示也都正常...

懂的大神幫個(gè)忙

估計(jì)是esp8266透?jìng)髂Ｊ經(jīng)]設(shè)置好

刷個(gè)分？