Nenad Jovicic / Mbed OS PMK2021_MQTT_ESP8266_test

MQTT ESP8266 basic test

main.cpp@4:c7acdba5d4b5, 2021-10-23 (annotated)

Committer:
nenad
Date:
Sat Oct 23 17:55:37 2021 +0000
Revision:
4:c7acdba5d4b5
Parent:
1:276a09a95334 
praktikum->STM

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nenad 0:75fa10a22545 1 /* mbed Microcontroller Library
nenad 0:75fa10a22545 2 * Copyright (c) 2019 ARM Limited
nenad 0:75fa10a22545 3 * SPDX-License-Identifier: Apache-2.0
nenad 0:75fa10a22545 4 */
nenad 0:75fa10a22545 5
nenad 0:75fa10a22545 6 #include "mbed.h"
nenad 1:276a09a95334 7 //#include "EthernetInterface.h"
nenad 0:75fa10a22545 8 #include "platform/mbed_thread.h"
nenad 0:75fa10a22545 9 #include <MQTTClientMbedOs.h>
nenad 0:75fa10a22545 10 // Blinking rate in milliseconds
nenad 0:75fa10a22545 11 #define BLINKING_RATE_MS 500
nenad 0:75fa10a22545 12 // Initialise the digital pin LED1 as an output
nenad 0:75fa10a22545 13 DigitalOut led(LED1);
nenad 1:276a09a95334 14
nenad 0:75fa10a22545 15
nenad 0:75fa10a22545 16 InterruptIn button(USER_BUTTON);
nenad 0:75fa10a22545 17
nenad 0:75fa10a22545 18 int arrivedcount = 0;
nenad 0:75fa10a22545 19 TCPSocket socket;
nenad 0:75fa10a22545 20 MQTTClient client(&socket);
nenad 0:75fa10a22545 21 MQTT::Message message;
nenad 0:75fa10a22545 22
nenad 0:75fa10a22545 23 int button_pressed=0;
nenad 0:75fa10a22545 24
nenad 0:75fa10a22545 25 float version = 0.6;
nenad 0:75fa10a22545 26 char* topic = "mbed-sample-pub";
nenad 0:75fa10a22545 27 char* topic_sub = "mbed-sample-sub";
nenad 0:75fa10a22545 28
nenad 0:75fa10a22545 29
nenad 1:276a09a95334 30
nenad 1:276a09a95334 31
nenad 1:276a09a95334 32 WiFiInterface *wifi;
nenad 1:276a09a95334 33
nenad 1:276a09a95334 34 const char *sec2str(nsapi_security_t sec)
nenad 1:276a09a95334 35 {
nenad 1:276a09a95334 36 switch (sec) {
nenad 1:276a09a95334 37 case NSAPI_SECURITY_NONE:
nenad 1:276a09a95334 38 return "None";
nenad 1:276a09a95334 39 case NSAPI_SECURITY_WEP:
nenad 1:276a09a95334 40 return "WEP";
nenad 1:276a09a95334 41 case NSAPI_SECURITY_WPA:
nenad 1:276a09a95334 42 return "WPA";
nenad 1:276a09a95334 43 case NSAPI_SECURITY_WPA2:
nenad 1:276a09a95334 44 return "WPA2";
nenad 1:276a09a95334 45 case NSAPI_SECURITY_WPA_WPA2:
nenad 1:276a09a95334 46 return "WPA/WPA2";
nenad 1:276a09a95334 47 case NSAPI_SECURITY_UNKNOWN:
nenad 1:276a09a95334 48 default:
nenad 1:276a09a95334 49 return "Unknown";
nenad 1:276a09a95334 50 }
nenad 1:276a09a95334 51 }
nenad 1:276a09a95334 52
nenad 1:276a09a95334 53 int scan_demo(WiFiInterface *wifi)
nenad 1:276a09a95334 54 {
nenad 1:276a09a95334 55 WiFiAccessPoint *ap;
nenad 1:276a09a95334 56
nenad 1:276a09a95334 57 printf("Scan:\n");
nenad 1:276a09a95334 58
nenad 1:276a09a95334 59 int count = wifi->scan(NULL,0);
nenad 1:276a09a95334 60
nenad 1:276a09a95334 61 if (count <= 0) {
nenad 1:276a09a95334 62 printf("scan() failed with return value: %d\n", count);
nenad 1:276a09a95334 63 return 0;
nenad 1:276a09a95334 64 }
nenad 1:276a09a95334 65
nenad 1:276a09a95334 66 /* Limit number of network arbitrary to 15 */
nenad 1:276a09a95334 67 count = count < 15 ? count : 15;
nenad 1:276a09a95334 68
nenad 1:276a09a95334 69 ap = new WiFiAccessPoint[count];
nenad 1:276a09a95334 70 count = wifi->scan(ap, count);
nenad 1:276a09a95334 71
nenad 1:276a09a95334 72 if (count <= 0) {
nenad 1:276a09a95334 73 printf("scan() failed with return value: %d\n", count);
nenad 1:276a09a95334 74 return 0;
nenad 1:276a09a95334 75 }
nenad 1:276a09a95334 76
nenad 1:276a09a95334 77 for (int i = 0; i < count; i++) {
nenad 1:276a09a95334 78 printf("Network: %s secured: %s BSSID: %hhX:%hhX:%hhX:%hhx:%hhx:%hhx RSSI: %hhd Ch: %hhd\n", ap[i].get_ssid(),
nenad 1:276a09a95334 79 sec2str(ap[i].get_security()), ap[i].get_bssid()[0], ap[i].get_bssid()[1], ap[i].get_bssid()[2],
nenad 1:276a09a95334 80 ap[i].get_bssid()[3], ap[i].get_bssid()[4], ap[i].get_bssid()[5], ap[i].get_rssi(), ap[i].get_channel());
nenad 1:276a09a95334 81 }
nenad 1:276a09a95334 82 printf("%d networks available.\n", count);
nenad 1:276a09a95334 83
nenad 1:276a09a95334 84 delete[] ap;
nenad 1:276a09a95334 85 return count;
nenad 1:276a09a95334 86 }
nenad 1:276a09a95334 87
nenad 0:75fa10a22545 88 void messageArrived(MQTT::MessageData& md)
nenad 0:75fa10a22545 89 {
nenad 0:75fa10a22545 90 MQTT::Message &message = md.message;
nenad 1:276a09a95334 91 printf("Message arrived: qos %d, retained %d, dup %d, packetid %d\r\n", message.qos, message.retained, message.dup, message.id);
nenad 1:276a09a95334 92 printf("Payload %.*s\r\n", message.payloadlen, (char*)message.payload);
nenad 0:75fa10a22545 93 ++arrivedcount;
nenad 0:75fa10a22545 94 }
nenad 0:75fa10a22545 95
nenad 0:75fa10a22545 96 void buttonFunction() {
nenad 0:75fa10a22545 97
nenad 0:75fa10a22545 98 button_pressed=1;
nenad 0:75fa10a22545 99
nenad 0:75fa10a22545 100 }
nenad 0:75fa10a22545 101
nenad 0:75fa10a22545 102
nenad 0:75fa10a22545 103
nenad 0:75fa10a22545 104
nenad 0:75fa10a22545 105 int main()
nenad 0:75fa10a22545 106 {
nenad 0:75fa10a22545 107 button.rise(&buttonFunction); // attach the address of the flip function to the rising edge
nenad 0:75fa10a22545 108
nenad 0:75fa10a22545 109 const char* hostname = "broker.mqttdashboard.com";
nenad 0:75fa10a22545 110 int port = 1883;
nenad 0:75fa10a22545 111 // Network interface
nenad 1:276a09a95334 112 //EthernetInterface net;
nenad 0:75fa10a22545 113
nenad 1:276a09a95334 114 wifi = WiFiInterface::get_default_instance();
nenad 1:276a09a95334 115 if (!wifi) {
nenad 1:276a09a95334 116 printf("ERROR: No WiFiInterface found.\n");
nenad 1:276a09a95334 117 return -1;
nenad 1:276a09a95334 118 }
nenad 1:276a09a95334 119
nenad 1:276a09a95334 120 int count = scan_demo(wifi);
nenad 1:276a09a95334 121 if (count == 0) {
nenad 1:276a09a95334 122 printf("No WIFI APs found - can't continue further.\n");
nenad 1:276a09a95334 123 return -1;
nenad 1:276a09a95334 124 }
nenad 0:75fa10a22545 125
nenad 1:276a09a95334 126 printf("\nConnecting to %s...\n", MBED_CONF_APP_WIFI_SSID);
nenad 1:276a09a95334 127 int ret = wifi->connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
nenad 1:276a09a95334 128 if (ret != 0) {
nenad 1:276a09a95334 129 printf("\nConnection error: %d\n", ret);
nenad 1:276a09a95334 130 return -1;
nenad 1:276a09a95334 131 }
nenad 1:276a09a95334 132
nenad 1:276a09a95334 133 printf("Success\n\n");
nenad 1:276a09a95334 134 printf("MAC: %s\n", wifi->get_mac_address());
nenad 1:276a09a95334 135 printf("IP: %s\n", wifi->get_ip_address());
nenad 1:276a09a95334 136 printf("Netmask: %s\n", wifi->get_netmask());
nenad 1:276a09a95334 137 printf("Gateway: %s\n", wifi->get_gateway());
nenad 1:276a09a95334 138 printf("RSSI: %d\n\n", wifi->get_rssi());
nenad 1:276a09a95334 139
nenad 1:276a09a95334 140
nenad 1:276a09a95334 141
nenad 0:75fa10a22545 142
nenad 0:75fa10a22545 143 //client = MQTTClient::(&socket);
nenad 1:276a09a95334 144 socket.open(wifi);
nenad 0:75fa10a22545 145 socket.connect(hostname, port);
nenad 0:75fa10a22545 146
nenad 0:75fa10a22545 147 int rc=0;
nenad 0:75fa10a22545 148
nenad 0:75fa10a22545 149 MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
nenad 0:75fa10a22545 150 data.MQTTVersion = 3;
nenad 0:75fa10a22545 151 data.clientID.cstring = "mbed-sample";
nenad 0:75fa10a22545 152 //data.username.cstring = "testuser";
nenad 0:75fa10a22545 153 //data.password.cstring = "testpassword";
nenad 0:75fa10a22545 154 if ((rc = client.connect(data)) != 0)
nenad 1:276a09a95334 155 printf("rc from MQTT connect is %d\r\n", rc);
nenad 0:75fa10a22545 156
nenad 0:75fa10a22545 157 if ((rc = client.subscribe(topic_sub, MQTT::QOS2, messageArrived)) != 0)
nenad 1:276a09a95334 158 printf("rc from MQTT subscribe is %d\r\n", rc);
nenad 0:75fa10a22545 159
nenad 0:75fa10a22545 160
nenad 0:75fa10a22545 161
nenad 0:75fa10a22545 162
nenad 0:75fa10a22545 163
nenad 0:75fa10a22545 164
nenad 0:75fa10a22545 165
nenad 0:75fa10a22545 166 while (true) {
nenad 0:75fa10a22545 167 led = !led;
nenad 0:75fa10a22545 168 thread_sleep_for(BLINKING_RATE_MS);
nenad 0:75fa10a22545 169 if (button_pressed==1) {
nenad 0:75fa10a22545 170 button_pressed=0;
nenad 1:276a09a95334 171 printf("sace publish\r\n");
nenad 0:75fa10a22545 172 // QoS 0
nenad 0:75fa10a22545 173 char buf[100];
nenad 0:75fa10a22545 174 sprintf(buf, "Hello World! QoS 0 message from app version %f\r\n", version);
nenad 0:75fa10a22545 175 message.qos = MQTT::QOS0;
nenad 0:75fa10a22545 176 message.retained = false;
nenad 0:75fa10a22545 177 message.dup = false;
nenad 0:75fa10a22545 178 message.payload = (void*)buf;
nenad 0:75fa10a22545 179 message.payloadlen = strlen(buf)+1;
nenad 0:75fa10a22545 180 client.publish(topic, message);
nenad 0:75fa10a22545 181 //pc.printf("sace jild\r\n");
nenad 0:75fa10a22545 182 //client.yield(1000);
nenad 0:75fa10a22545 183 //pc.printf("izjildovo\r\n");
nenad 0:75fa10a22545 184 }
nenad 1:276a09a95334 185 printf("sace jild\r\n");
nenad 0:75fa10a22545 186 client.yield(1000);
nenad 1:276a09a95334 187 printf("izjildovo\r\n");
nenad 0:75fa10a22545 188
nenad 0:75fa10a22545 189 }
nenad 0:75fa10a22545 190 }