Comments (3)
/* This example shows how to use MQTT on the main dev boards on the market
*
* This code mainly rely on Joël Gähwiler MQTT Livrary
* https://github.com/256dpi/arduino-mqtt
*
*
* HOW TO USE:
* under connect method, add your subscribe channels defined at the beginning of the code.
* under messageReceived (callback method) add actions to be done when a msg is received.
* to publish, call client.publish(topic,msg)
* in loop take care of using non-blocking method or it will corrupt.
* Alberto Perro & DG - Officine Innesto 2019
* Updated to Wio Terminal from DG
* TODO: add ESP32 board.
*/
#define BROKER_IP "broker.hivemq.com"
#define DEV_NAME "mqttdevice"
#define MQTT_USER ""
#define MQTT_PW ""
#define MQTT_SUB "presence"
#define MQTT_PUB "channel"
const char ssid[] = "salottino";
const char pass[] = "scherze771";
#include <MQTT.h>
#ifdef WIO_TERMINAL
#include "rpcWiFi.h"
#elif ARDUINO_SAMD_MKRWIFI1010
#include <WiFiNINA.h>
#elif ARDUINO_SAMD_MKR1000
#include <WiFi101.h>
#elif ESP8266
#include <ESP8266WiFi.h>
#else
#error unknown board
#endif
WiFiClient net;
MQTTClient client;
unsigned long lastMillis = 0;
#include <Adafruit_NeoPixel.h>
#define LED_PIN BCM27
#define LED_COUNT 60
Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);
void connect() {
Serial.print("checking wifi...");
while (WiFi.status() != WL_CONNECTED) {
Serial.print(".");
delay(1000);
}
Serial.print("\nconnecting...");
while (!client.connect(DEV_NAME, MQTT_USER, MQTT_PW)) {
Serial.print(".");
delay(1000);
}
Serial.println("\nconnected!");
client.subscribe(MQTT_SUB); //SUBSCRIBE TO TOPIC /hello
}
void messageReceived(String &topic, String &payload) {
Serial.println("incoming: " + topic + " - " + payload);
Serial.println(topic);
if (topic == "presence") {
client.publish(MQTT_PUB, "READ");
Serial.println("TOT");
if (payload == "true") {
Serial.println("open");
digitalWrite(LED_BUILTIN, HIGH);
client.publish(MQTT_PUB, "Led ON"); //PUBLISH TO TOPIC /hello MSG world
colorWipe(strip.Color(255, 0, 0), 50); // Red
} else if (payload == "false") {
Serial.println("closed");
colorWipe(strip.Color( 0, 0, 255), 50); // Blue
digitalWrite(LED_BUILTIN, LOW);
client.publish(MQTT_PUB, "Led OFF"); //PUBLISH TO TOPIC /hello MSG world
}
}
}
void setup() {
strip.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
strip.show(); // Turn OFF all pixels ASAP
strip.setBrightness(50); // Set BRIGHTNESS to about 1/5 (max = 255)
Serial.begin(115200);
WiFi.begin(ssid, pass);
client.begin(BROKER_IP, 1883, net);
client.onMessage(messageReceived);
connect();
}
void loop() {
client.loop();
if (!client.connected()) {
connect();
}
// publish a message roughly every second.
if (millis() - lastMillis > 5000) {
lastMillis = millis();
//client.publish(MQTT_PUB, "world"); //PUBLISH TO TOPIC /hello MSG world
//Serial.println("print");
}
}
// Some functions of our own for creating animated effects -----------------
// Fill strip pixels one after another with a color. Strip is NOT cleared
// first; anything there will be covered pixel by pixel. Pass in color
// (as a single 'packed' 32-bit value, which you can get by calling
// strip.Color(red, green, blue) as shown in the loop() function above),
// and a delay time (in milliseconds) between pixels.
void colorWipe(uint32_t color, int wait) {
for(int i=0; i<strip.numPixels(); i++) { // For each pixel in strip...
strip.setPixelColor(i, color); // Set pixel's color (in RAM)
strip.show(); // Update strip to match
delay(wait); // Pause for a moment
}
}
// Theater-marquee-style chasing lights. Pass in a color (32-bit value,
// a la strip.Color(r,g,b) as mentioned above), and a delay time (in ms)
// between frames.
void theaterChase(uint32_t color, int wait) {
for(int a=0; a<10; a++) { // Repeat 10 times...
for(int b=0; b<3; b++) { // 'b' counts from 0 to 2...
strip.clear(); // Set all pixels in RAM to 0 (off)
// 'c' counts up from 'b' to end of strip in steps of 3...
for(int c=b; c<strip.numPixels(); c += 3) {
strip.setPixelColor(c, color); // Set pixel 'c' to value 'color'
}
strip.show(); // Update strip with new contents
delay(wait); // Pause for a moment
}
}
}
// Rainbow cycle along whole strip. Pass delay time (in ms) between frames.
void rainbow(int wait) {
// Hue of first pixel runs 5 complete loops through the color wheel.
// Color wheel has a range of 65536 but it's OK if we roll over, so
// just count from 0 to 5*65536. Adding 256 to firstPixelHue each time
// means we'll make 5*65536/256 = 1280 passes through this loop:
for(long firstPixelHue = 0; firstPixelHue < 5*65536; firstPixelHue += 256) {
// strip.rainbow() can take a single argument (first pixel hue) or
// optionally a few extras: number of rainbow repetitions (default 1),
// saturation and value (brightness) (both 0-255, similar to the
// ColorHSV() function, default 255), and a true/false flag for whether
// to apply gamma correction to provide 'truer' colors (default true).
strip.rainbow(firstPixelHue);
// Above line is equivalent to:
// strip.rainbow(firstPixelHue, 1, 255, 255, true);
strip.show(); // Update strip with new contents
delay(wait); // Pause for a moment
}
}
// Rainbow-enhanced theater marquee. Pass delay time (in ms) between frames.
void theaterChaseRainbow(int wait) {
int firstPixelHue = 0; // First pixel starts at red (hue 0)
for(int a=0; a<30; a++) { // Repeat 30 times...
for(int b=0; b<3; b++) { // 'b' counts from 0 to 2...
strip.clear(); // Set all pixels in RAM to 0 (off)
// 'c' counts up from 'b' to end of strip in increments of 3...
for(int c=b; c<strip.numPixels(); c += 3) {
// hue of pixel 'c' is offset by an amount to make one full
// revolution of the color wheel (range 65536) along the length
// of the strip (strip.numPixels() steps):
int hue = firstPixelHue + c * 65536L / strip.numPixels();
uint32_t color = strip.gamma32(strip.ColorHSV(hue)); // hue -> RGB
strip.setPixelColor(c, color); // Set pixel 'c' to value 'color'
}
strip.show(); // Update strip with new contents
delay(wait); // Pause for a moment
firstPixelHue += 65536 / 90; // One cycle of color wheel over 90 frames
}
}
}
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