ESP8266 Проблема с синтаксическим анализом JSON и установка его в переменную - PullRequest
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ESP8266 Проблема с синтаксическим анализом JSON и установка его в переменную

0 голосов
/ 01 мая 2020

Я работаю над iot-проектом. Я создал веб-сайт для управления моей базой данных и PHP кодами, чтобы получать значения базы данных и генерировать текст JSON. Эта сторона работает отлично, однако, когда я пытаюсь разобрать JSON и установить значения в переменные, я ничего не получаю, поэтому мне нужна ваша помощь для завершения sh моего проекта. (обратите внимание, что у меня плохой английский sh и плохое знание кодирования)

МОЙ КОД ARDUINO: 

#include <ESP8266WiFi.h>
#include <ArduinoJson.h>
static const uint8_t D0   = 16;
static const uint8_t D1   = 5;
static const uint8_t D2   = 4;
static const uint8_t D3   = 0;
static const uint8_t D4   = 2;
static const uint8_t D5   = 14;
static const uint8_t D6   = 12;
static const uint8_t D7   = 13;
static const uint8_t D8   = 15;
static const uint8_t D9   = 3;
static const uint8_t D10  = 1;
int delays[] = {150,300,300,100,300,550,575,};
int Tone1[] = {660,660,660,510,660,770,380,};
int Tone2[] = {100,100,100,100,100,100,100,};
const char* ssid     = "ASUS 2.4GHZ";
const char* password = "A45CB547CBDB6A32";
const char* host = "falconiot.atwebpages.com"; //replace it with your webhost url
String url;
  int i =0;
  String relay ;
  int count = 0;
  int panjur1_status = 1;
  int panjur2_status = 1;
  String url2 = "/api/relays/update.php?id=8&status=on";
void setup() {
   for(int a = 0; i < 7; i++){
    tone(D0, Tone1[i], Tone2[i]);
    delay(delays[i]);}
  Serial.begin(115200);
  delay(100);
  pinMode(D0, INPUT);
  pinMode(D1, OUTPUT);
  pinMode(D2, OUTPUT);
  pinMode(D3, OUTPUT);
  pinMode(D4, OUTPUT);
  pinMode(D5, OUTPUT);
  pinMode(D6, OUTPUT);
  pinMode(D7, OUTPUT);
  pinMode(D8, OUTPUT);
  digitalWrite(D1, LOW);
  digitalWrite(D2, LOW);
  digitalWrite(D3, LOW);
  digitalWrite(D4, LOW);
  digitalWrite(D5, LOW);
  digitalWrite(D6, LOW);
  digitalWrite(D7, LOW);
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected"); 
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
  Serial.print("Netmask: ");
  Serial.println(WiFi.subnetMask());
  Serial.print("Gateway: ");
  Serial.println(WiFi.gatewayIP());
}

 void loop() {

  Serial.print("connecting to ");
  Serial.println(host);

  WiFiClient client;
  const int httpPort = 80;
  if (!client.connect(host, httpPort)) {
    Serial.println("connection failed");
    return;
  }

  if (count == 0){
    url = "/api/relays/read_all.php?id=1";
    count = count + 1;
    Serial.println("Here1");
  }
  else if (count == 1){
    url = "/api/relays/read_all.php?id=2";
    count = count + 1;
    Serial.println("Here2");
  }
  else if (count == 2){
    url = "/api/relays/read_all.php?id=3";
    count = count + 1;
    Serial.println("Here3");
  }
  else if (count == 3){
    url = "/api/relays/read_all.php?id=4";
    count = count + 1;
    Serial.println("Here4");
  }
  else if (count == 4){
    url = "/api/relays/read_all.php?id=5";
    count = count + 1;
    Serial.println("Here5");
  }
  else if (count == 5){
    url = "/api/relays/read_all.php?id=6";
    count = count + 1;
    Serial.println("Here6");
  }
  else if (count == 6){
    url = "/api/relays/read_all.php?id=7";
    count = count + 1;
    Serial.println("Here7");
  }
  Serial.print("Requesting URL: ");
  Serial.println(url);

  client.print(String("GET ") + url + " HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" +
               "Connection: close\r\n\r\n");
  delay(500);

      // Parse JSON
      StaticJsonBuffer<400> jsonBuffer;
      char json[] = "{\"success\":1,\"relays\":[{\"id\":\"2\",\"status\":\"on\"}]}";
      JsonObject& json_parsed = jsonBuffer.parseObject(json);
      if (!json_parsed.success())
      {
        Serial.println("parseObject() failed");
        return;
      }
      char relays_0_status = json_parsed["relays"][0]["status"];
      Serial.println("DATA");
      Serial.println(relays_0_status);

           if(count == 1){
        if(relay == "on" && panjur1_status == 1){
          digitalWrite(D1, LOW);
          delay(30000);
          digitalWrite(D1, HIGH);
          panjur1_status = 0;
          Serial.println("D1 is On..!");
        }
        else if(relay == "off" && panjur1_status == 0){
          digitalWrite(D2, LOW);
          delay(30000);
          digitalWrite(D2, HIGH);
          panjur1_status=1;
          Serial.println("D2 is Off..!");
        }
      }
      else if(count == 2){
       if(relay == "on" && panjur2_status == 1){
          digitalWrite(D3, LOW);
          delay(30000);
          digitalWrite(D3, HIGH);
          panjur2_status = 0;
          Serial.println("D3 is On..!");
        }
       if(relay == "on" && panjur2_status == 1){
          digitalWrite(D4, LOW);
          delay(30000);
          digitalWrite(D4, HIGH);
          panjur2_status = 1;
          Serial.println("D4 is Off..!");
        }
      }
       else if(count == 3){
        if(relay == "on"){
          digitalWrite(D5, LOW);
          Serial.println("D5 is On..!");
        }
        else if(relay == "off"){
          digitalWrite(D5, HIGH);
          Serial.println("D5 is Off..!");
        }
      }
       else if(count == 4){
        if(relay == "on"){
          digitalWrite(D6, LOW);
          Serial.println("D6 is On..!");
        }
        else if(relay == "off"){
          digitalWrite(D6, HIGH);
          Serial.println("D6 is Off..!");
        }
      }
      else if(count == 5){
        if(relay == "on"){
          digitalWrite(D7, LOW);
          Serial.println("D7 is On..!");
        }
        else if(relay == "off"){
          digitalWrite(D7, HIGH);
          Serial.println("D7 is Off..!");
        }
      }
       else if(count == 6){
        if(relay == "on"){
          digitalWrite(D8, 1);
          Serial.println("D8 is On..!");
        }
        else if(relay == "off"){
          digitalWrite(D8, 0);
          Serial.println("D8 is Off..!");
        }
      }
      else if(count == 7){
        if(relay == "on"){
          if(D0==HIGH){
            digitalWrite(D8,HIGH);
            delay(50);
            digitalWrite(D8,LOW);
            delay(50);
            client.print(String("GET ") + url2 + " HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" +
               "Connection: close\r\n\r\n");
  delay(500);
            }
          Serial.println("PIR Working!");
        }
        else if(relay == "off"){
          digitalWrite(D8, 0);
          Serial.println("PIR Is Not Wokring!");
        }
      }

      if (count == 7){
        count = 0;
      }  
  Serial.println();
  Serial.println("closing connection");
  delay(5000);
}

СЕРИЙНЫЙ МОНИТОР: 

WiFi connected
IP address: 
192.168.0.15
Netmask: 255.255.255.0
Gateway: 192.168.0.1
connecting to falconiot.atwebpages.com
Here1
Requesting URL: /api/relays/read_all.php?id=1
DATA

JSON КОД С МОЕГО САЙТА: 

{"success":1,"relays":[{"id":"2","status":"on"}]}

PHP ДЛЯ СОЗДАНИЯ JSON ФОРМАТИРОВАННЫЙ ТЕКСТ: 

<?php
header("Access-Control-Allow-Origin: *");
header("Content-Type: application/json; charset=UTF-8");

//Creating Array for JSON response
$response = array();

// Include data base connect class
$filepath = realpath (dirname(__FILE__));
require_once($filepath."/db_connect.php");

 // Connecting to database
$db = new DB_CONNECT();

// Check if we got the field from the user
if (isset($_GET["id"])) {
    $id = $_GET['id'];

     // Fire SQL query to get relays data by id
    $result = mysql_query("SELECT *FROM relays WHERE id = '$id'");

    //If returned result is not empty
    if (!empty($result)) {

        // Check for succesfull execution of query and no results found
        if (mysql_num_rows($result) > 0) {

            // Storing the returned array in response
            $result = mysql_fetch_array($result);

            // temperoary user array
            $led = array();
            $led["id"] = $result["id"];
            $led["status"] = $result["status"];

            $response["success"] = 1;

            $response["relays"] = array();

            // Push all the items 
            array_push($response["relays"], $led);

            // Show JSON response
            echo json_encode($response);
        } else {
            // If no data is found
            $response["success"] = 0;
            $response["message"] = "No data on relays found";

            // Show JSON response
            echo json_encode($response);
        }
    } else {
        // If no data is found
        $response["success"] = 0;
        $response["message"] = "No data on relays found";

        // Show JSON response
        echo json_encode($response);
    }
} else {
    // If required parameter is missing
    $response["success"] = 0;
    $response["message"] = "Parameter(s) are missing. Please check the request";

    // echoing JSON response
    echo json_encode($response);
}
?>
...