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Adafruit_MQTT_Library
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adds ping to the end of the main loop in examples

This commit is contained in:
Todd Treece 2015-10-22 14:13:19 -04:00
parent 7c2b558ee9
commit 4dc6f1e486
5 changed files with 55 additions and 57 deletions
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16
examples/mqtt_cc3k/mqtt_cc3k.ino
View File

@ -104,16 +104,6 @@ void loop() {
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// Try to ping the MQTT server
/*
if (! mqtt.ping(3) ) {
// MQTT pings failed, let's reconnect by forcing a watchdog reset.
Serial.println("Ping fail! Resetting...");
Watchdog.enable(8000);
delay(10000);
}
*/
// this is our 'wait for incoming subscription packets' busy subloop
Adafruit_MQTT_Subscribe *subscription;
@ -133,6 +123,12 @@ void loop() {
} else {
Serial.println(F("OK!"));
}
// ping the server to keep the mqtt connection alive
if(! mqtt.ping()) {
Serial.println(F("MQTT Ping failed."));
}
}
// Function to connect and reconnect as necessary to the MQTT server.

14
examples/mqtt_esp8266/mqtt_esp8266.ino
View File

@ -90,14 +90,6 @@ void loop() {
// function definition further below.
MQTT_connect();
// Try to ping the MQTT server
/*
if (! mqtt.ping(3) ) {
// MQTT pings failed, lets reconnect
Serial.println("Ping fail!");
}
*/
// this is our 'wait for incoming subscription packets' busy subloop
Adafruit_MQTT_Subscribe *subscription;
while ((subscription = mqtt.readSubscription(1000))) {
@ -117,7 +109,13 @@ void loop() {
Serial.println(F("OK!"));
}
// ping the server to keep the mqtt connection alive
if(! mqtt.ping()) {
mqtt.disconnect();
}
delay(1000);
}
// Function to connect and reconnect as necessary to the MQTT server.

13
examples/mqtt_ethernet/mqtt_ethernet.ino
View File

@ -91,13 +91,6 @@ void loop() {
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// Try to ping the MQTT server
if (! mqtt.ping(3) ) {
// MQTT pings failed, let's reconnect by forcing a watchdog reset.
Serial.println("Ping fail! Resetting...");
delay(10000);
}
// this is our 'wait for incoming subscription packets' busy subloop
Adafruit_MQTT_Subscribe *subscription;
@ -117,6 +110,12 @@ void loop() {
} else {
Serial.println(F("OK!"));
}
// ping the server to keep the mqtt connection alive
if(! mqtt.ping()) {
mqtt.disconnect();
}
}
// Function to connect and reconnect as necessary to the MQTT server.

55
examples/mqtt_fona/mqtt_fona.ino
View File

@ -113,30 +113,10 @@ void loop() {
// Make sure to reset watchdog every loop iteration!
Watchdog.reset();
// check if we're still connected
if (!fona.TCPconnected() || (txfailures >= MAXTXFAILURES)) {
Serial.println(F("Connecting to MQTT..."));
int8_t ret, retries = 5;
while (retries && (ret = mqtt.connect()) != 0) {
Serial.println(mqtt.connectErrorString(ret));
Serial.println(F("Retrying MQTT connection"));
retries--;
if (retries == 0) halt("Resetting system");
delay(5000);
}
Serial.println(F("MQTT Connected!"));
txfailures = 0;
}
// Try to ping the MQTT server
/*
if (! mqtt.ping(3) ) {
// MQTT pings failed, lets reconnect
Serial.println("Ping fail!");
}
*/
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// this is our 'wait for incoming subscription packets' busy subloop
Adafruit_MQTT_Subscribe *subscription;
@ -158,4 +138,31 @@ void loop() {
Serial.println(F("OK!"));
txfailures = 0;
}
// ping the server to keep the mqtt connection alive
if(! mqtt.ping()) {
Serial.println(F("MQTT Ping failed."));
}
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
}
Serial.println("MQTT Connected!");
}

14
examples/mqtt_yun/mqtt_yun.ino
View File

@ -74,14 +74,6 @@ void loop() {
// function definition further below.
MQTT_connect();
// Try to ping the MQTT server
/*
if (! mqtt.ping(3) ) {
// MQTT pings failed, lets reconnect
Console.println("Ping fail!");
}
*/
// this is our 'wait for incoming subscription packets' busy subloop
Adafruit_MQTT_Subscribe *subscription;
while ((subscription = mqtt.readSubscription(1000))) {
@ -101,7 +93,13 @@ void loop() {
Console.println(F("OK!"));
}
// ping the server to keep the mqtt connection alive
if(! mqtt.ping()) {
Serial.println(F("MQTT Ping failed."));
}
delay(1000);
}
// Function to connect and reconnect as necessary to the MQTT server.