Esp8266 mqtt wireless control air conditioning

For the air-conditioning controls are generally infrared control. So that we can esp module and an infrared module used in conjunction with
such control to the remote wireless air conditioning

Demo video:

IR receiver

TIM picture 20190511141512
Pin 11 is used baud rate is 9600
irRemote library call, converts the received optical signal to a numerical value.


#include <IRremote.h>
 
int PIN_RECV = 11;
IRrecv irrecv(PIN_RECV);
decode_results results;
 
void setup()
{
  Serial.begin(9600);
  irrecv.enableIRIn();
}
 
void loop() {
  if (irrecv.decode(&results)) {
    Serial.println(results.value);
    irrecv.resume();
  }
}

You may be obtained based on this remote control code value associated key
record is used to transmit the following

(In my project I want to demonstrate in effect, so control is a digital control using arduino pro mini processes the received information received through the infrared control TM1637 digital display)

Infrared transmitter

The following code after the transformation, is to use infrared to control the display. The idea is the same as
that used sendNEC (); function sends the value to be transmitted in decimal or hexadecimal values and the like.

Many online codes
can also refer to my blog
http://niehen.cn/arduino/arduino%e6%8e%a7%e5%88%b6%e7%ba%a2%e5%a4%96%e6%8e%a5 % e6% 94% b6% ef % bc% 8c% e5% 8f% 91% e9% 80% 81 /

Use esp Development

Analyzing esp instruction is sent to the appropriate callback function into the
following analysis control infrared transmitter to send a corresponding code segment

Esp12f used GPIO4 pin
using the library to have
<IRremoteESP8266.h>
<IRsend.h> // library of infrared transmitter
<ESP8266WiFi.h>
<PubSubClient.h> // the MQTT library

Rules sent and received

char * order_infor [] = { " on", "off", "tema", "tems", "warm", "cold", "winda", "winds"}; // temperature controlled
long enc [] = {0xFF30CF, 0xFF18E7,0xFF7A85,0xFF10EF, 0xFF38C7,0xFF5AA5,0xFF42BD, 0xFF4AB5 }; // transmit infrared hexadecimal value

Receiving 0 (open) sends the received first code 1 (off) transmitting second coded ...
2. the callback processing received values (to prevent erroneous command is present)

 int isint = 0;// 如果有字母 就为1 全数字就为0
    for (int i=0; i< strplayload.length();i++)  // 检测接收到的命令里面是否含有 非数字的字符
  {
    if (!isDigit(strplayload[i]))
    {
      isint = 1;
      break;
      }
    }

Transmitting (callback code) based on the result of processing callback

 if(isint == 0){
      int older_air = strplayload.toInt() ; // 转换为 int类型
        if(older_air >=1 && older_air<=8){
          irsend.sendSony(enc[older_air - 1], 12);
          client.publish("air_cond/status", "IR remote is running");
          client.publish("air_cond/status", order_infor[older_air -1]);
        }

Code

esp8266 mqtt use arduino development

http://niehen.cn/esp8266/esp8266-mqtt-%e4%bd%bf%e7%94%a8arduino%e5%bc%80%e5%8f%91%e6%95%99%e7%a8%8b/

esp8266-12f use Description

http://niehen.cn/esp8266/esp8266-12f%e4%bb%8b%e7%bb%8d%e4%b8%8e%e4%bd%bf%e7%94%a8/

The complete code for reference only
then make the appropriate changes to the code according to their own scenarios

Item reference code links

GitHub address