Adafruit_MQTT_Library/examples/mqtt_cc3k/mqtt_cc3k.ino
2015-06-10 15:38:34 -07:00

156 lines
5.6 KiB
C++

/***************************************************
Adafruit MQTT Library CC3000 Example
Designed specifically to work with the Adafruit WiFi products:
----> https://www.adafruit.com/products/1469
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <Adafruit_SleepyDog.h>
#include <Adafruit_CC3000.h>
#include <SPI.h>
#include "utility/debug.h"
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_CC3000.h"
/*************************** CC3000 Pins ***********************************/
#define ADAFRUIT_CC3000_IRQ 3 // MUST be an interrupt pin!
#define ADAFRUIT_CC3000_VBAT 5 // VBAT & CS can be any digital pins.
#define ADAFRUIT_CC3000_CS 10
// Use hardware SPI for the remaining pins
// On an UNO, SCK = 13, MISO = 12, and MOSI = 11
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "...your SSID..." // can't be longer than 32 characters!
#define WLAN_PASS "...your password..."
#define WLAN_SECURITY WLAN_SEC_WPA2 // Can be: WLAN_SEC_UNSEC, WLAN_SEC_WEP,
// WLAN_SEC_WPA or WLAN_SEC_WPA2
/************************* Adafruit.io Setup *********************************/
#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...";
/************ Global State (you don't need to change this!) ******************/
// Setup the main CC3000 class, just like a normal CC3000 sketch.
Adafruit_CC3000 cc3000 = Adafruit_CC3000(ADAFRUIT_CC3000_CS, ADAFRUIT_CC3000_IRQ, ADAFRUIT_CC3000_VBAT);
// 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;
const char MQTT_USERNAME[] PROGMEM = AIO_USERNAME;
const char MQTT_PASSWORD[] PROGMEM = AIO_KEY;
// Setup the CC3000 MQTT class by passing in the CC3000 class and MQTT server and login details.
Adafruit_MQTT_CC3000 mqtt(&cc3000, MQTT_SERVER, AIO_SERVERPORT, MQTT_CLIENTID, MQTT_USERNAME, MQTT_PASSWORD);
// You don't need to change anything below this line!
#define halt(s) { Serial.println(F( s )); while(1); }
// CC3000connect is a helper function that sets up the CC3000 and connects to
// the WiFi network. See the cc3000helper.cpp tab above for the source!
boolean CC3000connect(const char* wlan_ssid, const char* wlan_pass, uint8_t wlan_security);
/****************************** Feeds ***************************************/
// 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.
const char ONOFF_FEED[] PROGMEM = AIO_USERNAME "/feeds/onoff";
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, ONOFF_FEED);
/*************************** Sketch Code ************************************/
void setup() {
Serial.begin(115200);
Serial.println(F("Adafruit MQTT demo"));
Serial.print(F("Free RAM: ")); Serial.println(getFreeRam(), DEC);
// Initialise the CC3000 module
Serial.print(F("\nInit the CC3000..."));
if (!cc3000.begin())
halt("Failed");
mqtt.subscribe(&onoffbutton);
while (! CC3000connect(WLAN_SSID, WLAN_PASS, WLAN_SECURITY)) {
Serial.println(F("Retrying WiFi"));
while(1);
}
Serial.println(F("Connected to WiFi!"));
//////////////////////////////
Serial.println(F("Connecting to MQTT..."));
int8_t ret;
while ((ret = mqtt.connect()) != 0) {
switch (ret) {
case 1: Serial.println(F("Wrong protocol")); break;
case 2: Serial.println(F("ID rejected")); break;
case 3: Serial.println(F("Server unavail")); break;
case 4: Serial.println(F("Bad user/pass")); break;
case 5: Serial.println(F("Not authed")); break;
case 6: Serial.println(F("Failed to subscribe")); break;
default: {
Serial.println(F("Connection failed"));
CC3000connect(WLAN_SSID, WLAN_PASS, WLAN_SECURITY); // y0w, lets connect to wifi again
return; // restart the loop
}
}
Serial.println(F("Retrying MQTT connection"));
delay(5000);
}
//////////////////////////////
Serial.println(F("MQTT Connected!"));
}
uint32_t x=0;
void loop() {
// Make sure to reset watchdog every loop iteration!
Watchdog.reset();
// 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)) {
if (subscription == &onoffbutton) {
Serial.print(F("Got: "));
Serial.println((char *)onoffbutton.lastread);
}
}
// Now we can publish stuff!
Serial.print(F("\nSending photocell val "));
Serial.print(x);
Serial.print("...");
if (! photocell.publish(x++)) {
Serial.println(F("Failed"));
} else {
Serial.println(F("OK!"));
}
}