Nenad Jovicic
/
PMK2021_MQTT_ESP8266_test
MQTT ESP8266 basic test
main.cpp
- Committer:
- nenad
- Date:
- 2021-10-23
- Revision:
- 4:c7acdba5d4b5
- Parent:
- 1:276a09a95334
File content as of revision 4:c7acdba5d4b5:
/* mbed Microcontroller Library * Copyright (c) 2019 ARM Limited * SPDX-License-Identifier: Apache-2.0 */ #include "mbed.h" //#include "EthernetInterface.h" #include "platform/mbed_thread.h" #include <MQTTClientMbedOs.h> // Blinking rate in milliseconds #define BLINKING_RATE_MS 500 // Initialise the digital pin LED1 as an output DigitalOut led(LED1); InterruptIn button(USER_BUTTON); int arrivedcount = 0; TCPSocket socket; MQTTClient client(&socket); MQTT::Message message; int button_pressed=0; float version = 0.6; char* topic = "mbed-sample-pub"; char* topic_sub = "mbed-sample-sub"; WiFiInterface *wifi; const char *sec2str(nsapi_security_t sec) { switch (sec) { case NSAPI_SECURITY_NONE: return "None"; case NSAPI_SECURITY_WEP: return "WEP"; case NSAPI_SECURITY_WPA: return "WPA"; case NSAPI_SECURITY_WPA2: return "WPA2"; case NSAPI_SECURITY_WPA_WPA2: return "WPA/WPA2"; case NSAPI_SECURITY_UNKNOWN: default: return "Unknown"; } } int scan_demo(WiFiInterface *wifi) { WiFiAccessPoint *ap; printf("Scan:\n"); int count = wifi->scan(NULL,0); if (count <= 0) { printf("scan() failed with return value: %d\n", count); return 0; } /* Limit number of network arbitrary to 15 */ count = count < 15 ? count : 15; ap = new WiFiAccessPoint[count]; count = wifi->scan(ap, count); if (count <= 0) { printf("scan() failed with return value: %d\n", count); return 0; } for (int i = 0; i < count; i++) { printf("Network: %s secured: %s BSSID: %hhX:%hhX:%hhX:%hhx:%hhx:%hhx RSSI: %hhd Ch: %hhd\n", ap[i].get_ssid(), sec2str(ap[i].get_security()), ap[i].get_bssid()[0], ap[i].get_bssid()[1], ap[i].get_bssid()[2], ap[i].get_bssid()[3], ap[i].get_bssid()[4], ap[i].get_bssid()[5], ap[i].get_rssi(), ap[i].get_channel()); } printf("%d networks available.\n", count); delete[] ap; return count; } void messageArrived(MQTT::MessageData& md) { MQTT::Message &message = md.message; printf("Message arrived: qos %d, retained %d, dup %d, packetid %d\r\n", message.qos, message.retained, message.dup, message.id); printf("Payload %.*s\r\n", message.payloadlen, (char*)message.payload); ++arrivedcount; } void buttonFunction() { button_pressed=1; } int main() { button.rise(&buttonFunction); // attach the address of the flip function to the rising edge const char* hostname = "broker.mqttdashboard.com"; int port = 1883; // Network interface //EthernetInterface net; wifi = WiFiInterface::get_default_instance(); if (!wifi) { printf("ERROR: No WiFiInterface found.\n"); return -1; } int count = scan_demo(wifi); if (count == 0) { printf("No WIFI APs found - can't continue further.\n"); return -1; } printf("\nConnecting to %s...\n", MBED_CONF_APP_WIFI_SSID); int ret = wifi->connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2); if (ret != 0) { printf("\nConnection error: %d\n", ret); return -1; } printf("Success\n\n"); printf("MAC: %s\n", wifi->get_mac_address()); printf("IP: %s\n", wifi->get_ip_address()); printf("Netmask: %s\n", wifi->get_netmask()); printf("Gateway: %s\n", wifi->get_gateway()); printf("RSSI: %d\n\n", wifi->get_rssi()); //client = MQTTClient::(&socket); socket.open(wifi); socket.connect(hostname, port); int rc=0; MQTTPacket_connectData data = MQTTPacket_connectData_initializer; data.MQTTVersion = 3; data.clientID.cstring = "mbed-sample"; //data.username.cstring = "testuser"; //data.password.cstring = "testpassword"; if ((rc = client.connect(data)) != 0) printf("rc from MQTT connect is %d\r\n", rc); if ((rc = client.subscribe(topic_sub, MQTT::QOS2, messageArrived)) != 0) printf("rc from MQTT subscribe is %d\r\n", rc); while (true) { led = !led; thread_sleep_for(BLINKING_RATE_MS); if (button_pressed==1) { button_pressed=0; printf("sace publish\r\n"); // QoS 0 char buf[100]; sprintf(buf, "Hello World! QoS 0 message from app version %f\r\n", version); message.qos = MQTT::QOS0; message.retained = false; message.dup = false; message.payload = (void*)buf; message.payloadlen = strlen(buf)+1; client.publish(topic, message); //pc.printf("sace jild\r\n"); //client.yield(1000); //pc.printf("izjildovo\r\n"); } printf("sace jild\r\n"); client.yield(1000); printf("izjildovo\r\n"); } }