2015-07-06 22:43:52 +02:00
|
|
|
/***************************************************
|
2015-06-11 00:38:34 +02:00
|
|
|
Adafruit MQTT Library ESP8266 Example
|
|
|
|
|
|
|
|
Must use ESP8266 Arduino from:
|
|
|
|
https://github.com/esp8266/Arduino
|
|
|
|
|
2016-01-10 07:25:12 +01:00
|
|
|
Works great with Adafruit's Huzzah ESP board & Feather
|
2015-06-11 00:38:34 +02:00
|
|
|
----> https://www.adafruit.com/product/2471
|
2016-01-10 07:25:12 +01:00
|
|
|
----> https://www.adafruit.com/products/2821
|
2015-06-11 00:38:34 +02:00
|
|
|
|
2015-07-06 22:43:52 +02:00
|
|
|
Adafruit invests time and resources providing this open source code,
|
|
|
|
please support Adafruit and open-source hardware by purchasing
|
2015-06-11 00:38:34 +02:00
|
|
|
products from Adafruit!
|
|
|
|
|
2015-07-06 22:43:52 +02:00
|
|
|
Written by Tony DiCola for Adafruit Industries.
|
2015-06-11 00:38:34 +02:00
|
|
|
MIT license, all text above must be included in any redistribution
|
|
|
|
****************************************************/
|
2015-06-08 10:48:25 +02:00
|
|
|
#include <ESP8266WiFi.h>
|
|
|
|
#include "Adafruit_MQTT.h"
|
|
|
|
#include "Adafruit_MQTT_Client.h"
|
|
|
|
|
|
|
|
/************************* WiFi Access Point *********************************/
|
|
|
|
|
|
|
|
#define WLAN_SSID "...your SSID..."
|
|
|
|
#define WLAN_PASS "...your password..."
|
|
|
|
|
|
|
|
/************************* Adafruit.io Setup *********************************/
|
|
|
|
|
|
|
|
#define AIO_SERVER "io.adafruit.com"
|
2016-01-16 17:51:12 +01:00
|
|
|
#define AIO_SERVERPORT 1883 // use 8883 for SSL
|
2015-06-08 10:48:25 +02:00
|
|
|
#define AIO_USERNAME "...your AIO username (see https://accounts.adafruit.com)..."
|
2015-07-06 22:43:52 +02:00
|
|
|
#define AIO_KEY "...your AIO key..."
|
2015-06-08 10:48:25 +02:00
|
|
|
|
|
|
|
/************ Global State (you don't need to change this!) ******************/
|
|
|
|
|
|
|
|
// Create an ESP8266 WiFiClient class to connect to the MQTT server.
|
|
|
|
WiFiClient client;
|
2020-02-29 00:21:45 +01:00
|
|
|
// or... use WiFiClientSecure for SSL
|
2016-01-16 17:51:12 +01:00
|
|
|
//WiFiClientSecure client;
|
2015-06-08 10:48:25 +02:00
|
|
|
|
|
|
|
// Setup the MQTT client class by passing in the WiFi client and MQTT server and login details.
|
2016-08-15 19:06:17 +02:00
|
|
|
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
|
2015-06-08 10:48:25 +02:00
|
|
|
|
|
|
|
/****************************** Feeds ***************************************/
|
|
|
|
|
2015-07-06 22:43:52 +02:00
|
|
|
// Setup a feed called 'photocell' for publishing.
|
2015-06-08 10:48:25 +02:00
|
|
|
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
|
2016-08-15 21:24:21 +02:00
|
|
|
Adafruit_MQTT_Publish photocell = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/photocell");
|
2015-06-08 10:48:25 +02:00
|
|
|
|
2015-07-06 22:43:52 +02:00
|
|
|
// Setup a feed called 'onoff' for subscribing to changes.
|
2016-08-15 21:24:21 +02:00
|
|
|
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/onoff");
|
2015-06-08 10:48:25 +02:00
|
|
|
|
|
|
|
/*************************** Sketch Code ************************************/
|
|
|
|
|
2015-11-21 05:52:49 +01:00
|
|
|
// Bug workaround for Arduino 1.6.6, it seems to need a function declaration
|
|
|
|
// for some reason (only affects ESP8266, likely an arduino-builder bug).
|
|
|
|
void MQTT_connect();
|
|
|
|
|
2015-06-08 10:48:25 +02:00
|
|
|
void setup() {
|
|
|
|
Serial.begin(115200);
|
|
|
|
delay(10);
|
|
|
|
|
|
|
|
Serial.println(F("Adafruit MQTT demo"));
|
|
|
|
|
|
|
|
// Connect to WiFi access point.
|
|
|
|
Serial.println(); Serial.println();
|
|
|
|
Serial.print("Connecting to ");
|
|
|
|
Serial.println(WLAN_SSID);
|
2015-07-06 22:43:52 +02:00
|
|
|
|
2015-06-08 10:48:25 +02:00
|
|
|
WiFi.begin(WLAN_SSID, WLAN_PASS);
|
|
|
|
while (WiFi.status() != WL_CONNECTED) {
|
|
|
|
delay(500);
|
|
|
|
Serial.print(".");
|
|
|
|
}
|
|
|
|
Serial.println();
|
|
|
|
|
2015-07-06 22:43:52 +02:00
|
|
|
Serial.println("WiFi connected");
|
2015-06-08 10:48:25 +02:00
|
|
|
Serial.println("IP address: "); Serial.println(WiFi.localIP());
|
|
|
|
|
|
|
|
// Setup MQTT subscription for onoff feed.
|
|
|
|
mqtt.subscribe(&onoffbutton);
|
|
|
|
}
|
|
|
|
|
|
|
|
uint32_t x=0;
|
|
|
|
|
|
|
|
void loop() {
|
2015-07-05 23:29:13 +02:00
|
|
|
// 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();
|
|
|
|
|
2015-06-08 10:48:25 +02:00
|
|
|
// this is our 'wait for incoming subscription packets' busy subloop
|
2016-01-10 07:03:59 +01:00
|
|
|
// try to spend your time here
|
|
|
|
|
2015-06-08 10:48:25 +02:00
|
|
|
Adafruit_MQTT_Subscribe *subscription;
|
2016-01-10 07:03:59 +01:00
|
|
|
while ((subscription = mqtt.readSubscription(5000))) {
|
2015-06-08 10:48:25 +02:00
|
|
|
if (subscription == &onoffbutton) {
|
2015-07-06 22:43:52 +02:00
|
|
|
Serial.print(F("Got: "));
|
2015-06-08 10:48:25 +02:00
|
|
|
Serial.println((char *)onoffbutton.lastread);
|
|
|
|
}
|
|
|
|
}
|
2015-07-06 22:43:52 +02:00
|
|
|
|
2015-06-08 10:48:25 +02:00
|
|
|
// Now we can publish stuff!
|
2015-07-06 22:43:52 +02:00
|
|
|
Serial.print(F("\nSending photocell val "));
|
2015-06-08 10:48:25 +02:00
|
|
|
Serial.print(x);
|
|
|
|
Serial.print("...");
|
|
|
|
if (! photocell.publish(x++)) {
|
|
|
|
Serial.println(F("Failed"));
|
|
|
|
} else {
|
|
|
|
Serial.println(F("OK!"));
|
|
|
|
}
|
|
|
|
|
2015-10-22 20:13:19 +02:00
|
|
|
// ping the server to keep the mqtt connection alive
|
2016-01-10 07:03:59 +01:00
|
|
|
// NOT required if you are publishing once every KEEPALIVE seconds
|
|
|
|
/*
|
2015-10-22 20:13:19 +02:00
|
|
|
if(! mqtt.ping()) {
|
|
|
|
mqtt.disconnect();
|
|
|
|
}
|
2016-01-10 07:03:59 +01:00
|
|
|
*/
|
2015-06-08 10:48:25 +02:00
|
|
|
}
|
2015-07-05 23:29:13 +02:00
|
|
|
|
|
|
|
// 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... ");
|
|
|
|
|
2016-01-10 07:03:59 +01:00
|
|
|
uint8_t retries = 3;
|
2015-07-05 23:29:13 +02:00
|
|
|
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
|
2015-07-02 13:01:05 +02:00
|
|
|
Serial.println(mqtt.connectErrorString(ret));
|
2015-07-05 23:29:13 +02:00
|
|
|
Serial.println("Retrying MQTT connection in 5 seconds...");
|
|
|
|
mqtt.disconnect();
|
|
|
|
delay(5000); // wait 5 seconds
|
2016-01-10 07:03:59 +01:00
|
|
|
retries--;
|
|
|
|
if (retries == 0) {
|
|
|
|
// basically die and wait for WDT to reset me
|
|
|
|
while (1);
|
|
|
|
}
|
2015-07-05 23:29:13 +02:00
|
|
|
}
|
|
|
|
Serial.println("MQTT Connected!");
|
2016-08-15 19:06:17 +02:00
|
|
|
}
|