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* - Port 1883 : MQTT, unencrypted

* - Port 8883 : MQTT, encrypted (TLS)

* Note: may You need an MQTT desktop client such as

* - The lightweight Java client included in this repo: org.eclipse.paho.mqtt.utility-1.0.0.jar or

* - A full desktop client like MQTT.fx https://learn.adafruit.com/desktop-mqtt-client-for-adafruit-io/installing-software

* To run this demo

* 1. Change WLAN_SSID/WLAN_PASS

* 2. Decide whether you want to use TLS/SSL or not (USE_TLS)

* 3. Change CLIENTID, TOPIC, PUBLISH_MESSAGE, WILL_MESSAGE if you want

* 4. Compile and run

* 5. Use your MQTT desktop client to connect to the same sever and subscribe

* to the defined topic to monitor the published message(s).

#define WLAN_SSID "yourSSID"

#define WLAN_PASS "yourPass"

#define USE_TLS 0

#define BROKER_HOST "test.mosquitto.org"

#define BROKER_PORT (USE_TLS ? 8883 : 1883 )

// Uncomment to set your own ClientID, otherwise a random ClientID is used

//#define CLIENTID "Adafruit Feather"

#define TOPIC "adafruit/feather"

#define WILL_MESSAGE "Goodbye!!"

AdafruitMQTT mqtt;

AdafruitMQTTTopic mqttTopic(&mqtt, TOPIC, MQTT_QOS_EXACTLY_ONCE);

char old_value = '0';

char value = '0';

/**************************************************************************/

/*!

@brief The setup function runs once when the board comes out of reset

/**************************************************************************/

void setup()

{

Serial.begin(115200);

// Wait for the USB serial port to connect. Needed for native USB port only

while (!Serial) delay(1);

Serial.println("MQTT Publish using Publisher Example\r\n");

// Print all software versions

Feather.printVersions();

while ( !connectAP() )

{

delay(500); // delay between each attempt

}

// Connected: Print network info

Feather.printNetwork();