arduino/Adafruit_MQTT_Library
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Add date and time to client ID generation for more unique value.

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This commit is contained in:
Tony DiCola
2015-07-06 13:43:52 -07:00
parent 207bcd44dd
commit 9b92bb379c
4 changed files with 62 additions and 53 deletions
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31
examples/mqtt_esp8266/mqtt_esp8266.ino
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@ -1,4 +1,4 @@
/***************************************************
/***************************************************
Adafruit MQTT Library ESP8266 Example
Must use ESP8266 Arduino from:
@ -7,11 +7,11 @@
Works great with Adafruit's Huzzah ESP board:
----> https://www.adafruit.com/product/2471
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Tony DiCola for Adafruit Industries.
Written by Tony DiCola for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <ESP8266WiFi.h>
@ -28,7 +28,7 @@
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 1883
#define AIO_USERNAME "...your AIO username (see https://accounts.adafruit.com)..."
#define AIO_KEY "...your AIO key...";
#define AIO_KEY "...your AIO key..."
/************ Global State (you don't need to change this!) ******************/
@ -38,7 +38,10 @@ WiFiClient client;
// Store the MQTT server, client ID, username, and password in flash memory.
// This is required for using the Adafruit MQTT library.
const char MQTT_SERVER[] PROGMEM = AIO_SERVER;
const char MQTT_CLIENTID[] PROGMEM = AIO_KEY;
// Set a unique MQTT client ID using the AIO key + the date and time the sketch
// was compiled (so this should be unique across multiple devices for a user,
// alternatively you can manually set this to a GUID or other random value).
const char MQTT_CLIENTID[] PROGMEM = AIO_KEY __DATE__ __TIME__;
const char MQTT_USERNAME[] PROGMEM = AIO_USERNAME;
const char MQTT_PASSWORD[] PROGMEM = AIO_KEY;
@ -47,12 +50,12 @@ Adafruit_MQTT_Client mqtt(&client, MQTT_SERVER, AIO_SERVERPORT, MQTT_CLIENTID, M
/****************************** Feeds ***************************************/
// Setup a feed called 'photocell' for publishing.
// Setup a feed called 'photocell' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
const char PHOTOCELL_FEED[] PROGMEM = AIO_USERNAME "/feeds/photocell";
Adafruit_MQTT_Publish photocell = Adafruit_MQTT_Publish(&mqtt, PHOTOCELL_FEED);
// Setup a feed called 'onoff' for subscribing to changes.
// Setup a feed called 'onoff' for subscribing to changes.
const char ONOFF_FEED[] PROGMEM = AIO_USERNAME "/feeds/onoff";
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, ONOFF_FEED);
@ -68,7 +71,7 @@ void setup() {
Serial.println(); Serial.println();
Serial.print("Connecting to ");
Serial.println(WLAN_SSID);
WiFi.begin(WLAN_SSID, WLAN_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
@ -76,7 +79,7 @@ void setup() {
}
Serial.println();
Serial.println("WiFi connected");
Serial.println("WiFi connected");
Serial.println("IP address: "); Serial.println(WiFi.localIP());
// Setup MQTT subscription for onoff feed.
@ -97,7 +100,7 @@ void setup() {
}
Serial.println(F("Retrying MQTT connection"));
mqtt.disconnect();
delay(5000);
delay(5000);
}
Serial.println(F("MQTT Connected!"));
}
@ -117,13 +120,13 @@ void loop() {
Adafruit_MQTT_Subscribe *subscription;
while (subscription = mqtt.readSubscription(1000)) {
if (subscription == &onoffbutton) {
Serial.print(F("Got: "));
Serial.print(F("Got: "));
Serial.println((char *)onoffbutton.lastread);
}
}
// Now we can publish stuff!
Serial.print(F("\nSending photocell val "));
Serial.print(F("\nSending photocell val "));
Serial.print(x);
Serial.print("...");
if (! photocell.publish(x++)) {