1 | #include "r2ca.h"
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2 | #include "ESP8266.h"
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3 | #include "Client_ESP8266.h"
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4 | #include <PubSubClient.h>
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5 | #include <ArduinoJson.h>
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6 |
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7 | #include "../examples_gdef.h"
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8 |
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9 | char serverName[] = BLUEMIX_ORGANIZATION ".messaging.internetofthings.ibmcloud.com";
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10 | String clientName = String("d:") + String(BLUEMIX_ORGANIZATION) + String(":") + String(BLUEMIX_DEVICE_TYPE) + String(":") + String(BLUEMIX_DEVICE_ID);
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11 | String topicName = String("iot-2/evt/status/fmt/json");
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12 | char username[] = "use-token-auth";
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13 | char password[] = BLUEMIX_PASSWORD;
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14 |
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15 | ESP8266Client wifi_client;
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16 | PubSubClient client(serverName, 1883, 0, wifi_client);
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17 |
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18 | void MqttConnect()
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19 | {
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20 | while(!client.connected())
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21 | {
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22 | char clientStr[128];
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23 | clientName.toCharArray(clientStr,sizeof(clientStr));
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24 |
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25 | Serial.print("Trying to connect to: ");
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26 | Serial.println(clientStr);
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27 | client.connect(clientStr,username,password);
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28 | }
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29 | }
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30 |
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31 | void MqttRequest(int level)
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32 | {
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33 | MqttConnect();
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34 |
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35 | if(client.connected())
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36 | {
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37 | char topicStr[128];
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38 | topicName.toCharArray(topicStr,sizeof(topicStr));
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39 | char jsonStr[200];
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40 | DynamicJsonBuffer jsonBuffer;
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41 | JsonObject& root = jsonBuffer.createObject();
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42 | JsonObject& d = root.createNestedObject("d");
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43 | d["cds"] = level;
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44 | root.printTo(jsonStr, sizeof(jsonStr));
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45 |
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46 | boolean pubresult = client.publish(topicStr,jsonStr);
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47 |
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48 | Serial.print("attempt to send ");
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49 | Serial.println(jsonStr);
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50 | Serial.print("to ");
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51 | Serial.println(topicStr);
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52 |
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53 | if(pubresult)
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54 | Serial.println("successfully sent");
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55 | else
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56 | Serial.println("unsuccessfully sent");
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57 | }
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58 | else
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59 | {
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60 | Serial.println("connect error");
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61 | }
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62 | }
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63 |
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64 | void setup()
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65 | {
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66 | int ret;
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67 |
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68 | Serial.println("Echo Server : Start!");
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69 |
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70 | ret = WiFi.begin(Serial5, 115200);
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71 |
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72 | if(ret == 1) {
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73 | Serial.print("Cannot communicate with ESP8266.");
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74 | while(1);
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75 | } else if(ret == 2) {
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76 | Serial.println("FW Version mismatch.");
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77 | Serial.print("FW Version:");
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78 | Serial.println(WiFi.getVersion().c_str());
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79 | Serial.print("Supported FW Version:");
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80 | Serial.println(ESP8266_SUPPORT_VERSION);
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81 | while(1);
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82 | } else {
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83 | Serial.print("begin ok\r\n");
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84 | }
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85 |
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86 | Serial.print("FW Version:");
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87 | Serial.println(WiFi.getVersion().c_str());
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88 |
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89 | if (WiFi.setOprToStation()) {
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90 | Serial.print("to station ok\r\n");
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91 | } else {
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92 | Serial.print("to station err\r\n");
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93 | }
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94 |
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95 | if (WiFi.joinAP(STA_SSID, STA_PASSWORD)) {
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96 | Serial.print("Join AP success\r\n");
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97 | Serial.print("IP: ");
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98 | Serial.println(WiFi.getLocalIP().c_str());
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99 | } else {
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100 | Serial.print("Join AP failure\r\n");
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101 | }
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102 |
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103 | if (WiFi.stopServer()) {
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104 | Serial.print("Stop server ok\r\n");
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105 | } else {
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106 | Serial.print("Stop server err\r\n");
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107 | }
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108 |
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109 | if (WiFi.disableMUX()) {
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110 | Serial.print("single ok\r\n");
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111 | } else {
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112 | Serial.print("single err\r\n");
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113 | }
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114 |
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115 | MqttConnect();
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116 | Serial.println("MQTT set up");
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117 | }
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118 |
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119 | int cnt = 0;
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120 | void loop()
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121 | {
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122 | MqttRequest(cnt++);
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123 | delay(1000);
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124 | client.loop();
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125 |
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126 | if (Serial.available() > 0) {
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127 | Serial.read();
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128 | Serial.print("Pause : Input any char to continue.\n\r");
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129 | while(!(Serial.available() > 0));
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130 | Serial.print("Resume.\n\r");
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131 | Serial.read();
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132 | }
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133 | }
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