Merge branch 'master' of github.com:adafruit/Adafruit_MQTT_Library
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@ -1,3 +1,21 @@
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/***************************************************
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Adafruit MQTT Library ESP8266 Adafruit IO SSL/TLS example
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Must use the latest version of ESP8266 Arduino from:
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https://github.com/esp8266/Arduino
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Works great with Adafruit's Huzzah ESP board & Feather
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----> https://www.adafruit.com/product/2471
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----> https://www.adafruit.com/products/2821
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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Written by Tony DiCola for Adafruit Industries.
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Time additions by Todd Treece for Adafruit Industries.
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MIT license, all text above must be included in any redistribution
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****************************************************/
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#include <ESP8266WiFi.h>
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#include <ESP8266WiFi.h>
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#include "Adafruit_MQTT.h"
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#include "Adafruit_MQTT.h"
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#include "Adafruit_MQTT_Client.h"
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#include "Adafruit_MQTT_Client.h"
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@ -61,21 +79,44 @@ void setup() {
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void loop() {
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void loop() {
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int8_t code;
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// Ensure the connection to the MQTT server is alive (this will make the first
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// connection and automatically reconnect when disconnected). See the MQTT_connect
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// function definition further below.
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MQTT_connect();
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// connect to adafruit io if not connected
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// wait 10 seconds for subscription messages
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if(! mqtt.connected()) {
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// since we have no other tasks in this example.
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mqtt.processPackets(10000);
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Serial.print("Connecting to Adafruit IO... ");
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// keep the connection alive
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if((code = mqtt.connect()) != 0) {
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Serial.println(mqtt.connectErrorString(code));
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while(1);
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}
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Serial.println("connected!");
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}
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mqtt.processPackets(1000);
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mqtt.ping();
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mqtt.ping();
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}
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}
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// Function to connect and reconnect as necessary to the MQTT server.
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// Should be called in the loop function and it will take care if connecting.
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void MQTT_connect() {
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int8_t ret;
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// Stop if already connected.
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if (mqtt.connected()) {
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return;
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}
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Serial.print("Connecting to MQTT... ");
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uint8_t retries = 3;
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while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
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Serial.println(mqtt.connectErrorString(ret));
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Serial.println("Retrying MQTT connection in 5 seconds...");
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mqtt.disconnect();
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delay(5000); // wait 5 seconds
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retries--;
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if (retries == 0) {
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// basically die and wait for WDT to reset me
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while (1);
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}
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}
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Serial.println("MQTT Connected!");
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}
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