Question

我需要有关物语交流的帮助。在使用带有GAS传感器和ESP8266 Wifi模块的arduino uno进行重新创建时物联网项目。我正在使用下面的代码。但是，将所有内容都连接到wifi并将代码上传到arduino之后，我打开了串行监视器，得到了以下内容。-- ----设置完成

Temp=25.40 *C

Humidity=10.00 %

AT+CIPSTART="TCP","184.106.153.149",80

AT+CIPSEND=91

AT+CIPCLOSE----

在串行端口上显示此命令后，没有数据记录或（发送到Thingspeak通道。）有人可以帮助我吗在此处输入代码

    #include <SoftwareSerial.h>
    SoftwareSerial espSerial =  SoftwareSerial(2,3);      // arduino RX pin=2 arduino TX pin=3    connect the arduino RX pin to esp8266 module TX pin   -    connect the arduino TX pin to esp8266 module RX pin
    float sensor=A0;
    float gas_value;
String apiKey = "*********";     // replace with your channel's thingspeak WRITE API key
String ssid="********";    // Wifi network SSID
String password ="********";  // Wifi network password
boolean DEBUG=true;
#define VOLTAGE_MAX 5.0
#define VOLTAGE_MAXCOUNTS 1023.0
//======================================================================== showResponse
void showResponse(int waitTime){
long t=millis();
char c;
while (t+waitTime>millis()){
if (espSerial.available()){
c=espSerial.read();
if (DEBUG) Serial.print(c);
}
}
}
//=======================connection to thinkspeak.com=================================================
boolean thingSpeakWrite(float value1){
String cmd = "AT+CIPSTART=\"TCP\",\"";                  // TCP connection
cmd += "184.106.153.149";                               // api.thingspeak.com
cmd += "\",80";
espSerial.println(cmd);
if (DEBUG) Serial.println(cmd);
if(espSerial.find("Error")){
if (DEBUG) Serial.println("AT+CIPSTART error");
return false;
}
String getStr = "GET /update?api_key=";   // prepare GET string
getStr += apiKey;
getStr +="&field1=";
getStr += String(value1);
//getStr +="&field2=";
//getStr += String(value2);
// ...
getStr += "\r\n";
// send data length
cmd = "AT+CIPSEND=";
cmd += String(getStr.length());
espSerial.println(cmd);
if (DEBUG)  Serial.println(cmd);
delay(100);
if(espSerial.find(">")){
espSerial.print(getStr);
if (DEBUG)  Serial.print(getStr);
}
else{
espSerial.println("AT+CIPCLOSE");
// alert user
if (DEBUG)   Serial.println("AT+CIPCLOSE");
return false;
}
return true;
}
//================================================================================ setup
void setup() {                
DEBUG=true;           // enable debug serial
//----------my sensor code-----------
pinMode(LED_BUILTIN, OUTPUT);
pinMode(sensor,INPUT);
Serial.begin(9600); 
espSerial.begin(115200);  // enable software serial
// Your esp8266 module's speed is probably at 115200. 
// For this reason the first time set the speed to 115200 or to your esp8266 configured speed 
// and upload. Then change to 9600 and upload again
//espSerial.println("AT+RST");         // Enable this line to reset the module;
//showResponse(1000);
//espSerial.println("AT+UART_CUR=9600,8,1,0,0");    // Enable this line to set esp8266 serial speed to 9600 bps
//showResponse(1000);
espSerial.println("AT+CWMODE=1");   // set esp8266 as client
showResponse(1000);
espSerial.println("AT+CWJAP=\""+ssid+"\",\""+password+"\"");  // set your home router SSID and password
showResponse(5000);
if (DEBUG)  Serial.println("Setup completed");
}
// ======================================================================= loop
void loop() {
//---------my gas sensor value reading-------------------
gas_value=analogRead(sensor);
Serial.println(gas_value);
delay(1);  //delay in between reads for stability 
if(gas_value>250){
// initialize digital pin LED_BUILTIN as an output.
digitalWrite(LED_BUILTIN, HIGH);
//delay(250);
// digitalWrite(LED_BUILTIN, LOW);
//delay(250);
float t = gas_value*(VOLTAGE_MAX / VOLTAGE_MAXCOUNTS); //convert gas value to voltages
if (isnan(t)) {
if (DEBUG) Serial.println("Failed to read from MQ5");
}
else{
if (DEBUG)  Serial.println("Voltage="+String(t));
thingSpeakWrite(t);             // Write values to thingspeak
}
// thingspeak needs 15 sec delay between updates, */    
delay(200);  
}
else{
digitalWrite(LED_BUILTIN, LOW);
}
}

AT + CIPCLOSE（最大通话）无通讯

0 个答案: