152 lines
4.6 KiB
C++
152 lines
4.6 KiB
C++
/***************************************************
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Adafruit MQTT Library WINC1500 Example
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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Written by Limor Fried/Ladyada for Adafruit Industries.
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MIT license, all text above must be included in any redistribution
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****************************************************/
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#include <SPI.h>
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#include "Adafruit_MQTT.h"
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#include "Adafruit_MQTT_Client.h"
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#include <WiFi101.h>
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/************************* WiFI Setup *****************************/
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#define WINC_CS 8
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#define WINC_IRQ 7
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#define WINC_RST 4
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#define WINC_EN 2 // or, tie EN to VCC
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char ssid[] = "yournetwork"; // your network SSID (name)
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char pass[] = "yourpassword"; // your network password (use for WPA, or use as key for WEP)
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int keyIndex = 0; // your network key Index number (needed only for WEP)
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int status = WL_IDLE_STATUS;
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/************************* Adafruit.io Setup *********************************/
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#define AIO_SERVER "io.adafruit.com"
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#define AIO_SERVERPORT 1883
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#define AIO_USERNAME "adafruitiousername"
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#define AIO_KEY "adafruitiokey"
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/************ Global State (you don't need to change this!) ******************/
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//Set up the wifi client
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WiFiClient client;
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Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
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// You don't need to change anything below this line!
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#define halt(s) { Serial.println(F( s )); while(1); }
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/****************************** Feeds ***************************************/
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// Setup a feed called 'photocell' for publishing.
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// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
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Adafruit_MQTT_Publish photocell = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/photocell");
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// Setup a feed called 'onoff' for subscribing to changes.
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Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/onoff");
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/*************************** Sketch Code ************************************/
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#define LEDPIN 13
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void setup() {
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WiFi.setPins(WINC_CS, WINC_IRQ, WINC_RST, WINC_EN);
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while (!Serial);
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Serial.begin(115200);
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Serial.println(F("Adafruit MQTT demo for WINC1500"));
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// Initialise the Client
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Serial.print(F("\nInit the WiFi module..."));
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// check for the presence of the breakout
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if (WiFi.status() == WL_NO_SHIELD) {
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Serial.println("WINC1500 not present");
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// don't continue:
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while (true);
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}
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Serial.println("ATWINC OK!");
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pinMode(LEDPIN, OUTPUT);
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mqtt.subscribe(&onoffbutton);
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}
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uint32_t x=0;
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void loop() {
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// Ensure the connection to the MQTT server is alive (this will make the first
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// connection and automatically reconnect when disconnected). See the MQTT_connect
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// function definition further below.
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MQTT_connect();
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// this is our 'wait for incoming subscription packets' busy subloop
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Adafruit_MQTT_Subscribe *subscription;
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while ((subscription = mqtt.readSubscription(5000))) {
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if (subscription == &onoffbutton) {
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Serial.print(F("Got: "));
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Serial.println((char *)onoffbutton.lastread);
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if (0 == strcmp((char *)onoffbutton.lastread, "OFF")) {
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digitalWrite(LEDPIN, LOW);
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}
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if (0 == strcmp((char *)onoffbutton.lastread, "ON")) {
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digitalWrite(LEDPIN, HIGH);
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}
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}
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}
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// Now we can publish stuff!
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Serial.print(F("\nSending photocell val "));
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Serial.print(x);
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Serial.print("...");
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if (! photocell.publish(x++)) {
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Serial.println(F("Failed"));
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} else {
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Serial.println(F("OK!"));
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}
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}
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// Function to connect and reconnect as necessary to the MQTT server.
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// Should be called in the loop function and it will take care if connecting.
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void MQTT_connect() {
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int8_t ret;
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// attempt to connect to Wifi network:
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while (WiFi.status() != WL_CONNECTED) {
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Serial.print("Attempting to connect to SSID: ");
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Serial.println(ssid);
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// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
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status = WiFi.begin(ssid, pass);
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// wait 10 seconds for connection:
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uint8_t timeout = 10;
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while (timeout && (WiFi.status() != WL_CONNECTED)) {
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timeout--;
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delay(1000);
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}
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}
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// Stop if already connected.
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if (mqtt.connected()) {
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return;
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}
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Serial.print("Connecting to MQTT... ");
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while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
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Serial.println(mqtt.connectErrorString(ret));
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Serial.println("Retrying MQTT connection in 5 seconds...");
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mqtt.disconnect();
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delay(5000); // wait 5 seconds
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}
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Serial.println("MQTT Connected!");
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}
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