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wemosFastMQTTCheer.ino
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wemosFastMQTTCheer.ino
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#include "FastLED.h"
#include <pixeltypes.h>
#include <ESP8266WiFi.h>
#include <PubSubClient.h>
#include <WiFiManager.h>
FASTLED_USING_NAMESPACE
#if defined(FASTLED_VERSION) && (FASTLED_VERSION < 3001000)
#warning "Requires FastLED 3.1 or later; check github for latest code."
#endif
#define DATA_PIN D2
#define LED_TYPE WS2812
#define COLOR_ORDER GRB
#define NUM_LEDS 3
#define BRIGHTNESS 96
#define FRAMES_PER_SECOND 120
CRGB leds[NUM_LEDS];
WiFiClient wemosCL;
PubSubClient mqttClient(wemosCL);
const char* MQTT_broker = "iot.eclipse.org";
const int led = LED_BUILTIN;
const String mqttColours[] = {
"red" , "green" , "blue" ,
"cyan" , "white" , "purple" ,
"magenta", "yellow" , "orange" ,
"pink" , "oldlace", "warmwhite"
};
// Keep the order the same as mqttColours[]
const CRGB colourArray[] = {
0xFF0000, 0x00FF00, 0x0000FF,
0x00FFFF, 0xFFFFFF, 0x800080,
0xFF00FF, 0xFFFF00, 0xFFA500,
0xFFC0CB, 0xFDF5E6, 0xFDF5E6
};
void reconnect()
{
while (!mqttClient.connected())
{
if (mqttClient.connect("WemosMQTTclient"))
{
mqttClient.subscribe("cheerlights");
}
else
{
// Serial.print("Conn failed rc=");
// Serial.println(mqttClient.state());
delay(1000);
}
}
}
void setup()
{
Serial.begin(115200);
while (!Serial);
WiFiManager wifiManager;
wifiManager.setBreakAfterConfig(true);
//wifiManager.resetSettings();
if (!wifiManager.autoConnect("DL1-Ltd-Wemos", "configuration"))
{
delay(100);
digitalWrite(led, 1);
//ESP.reset();
delay(100);
digitalWrite(led, 0);
}
WiFi.mode(WIFI_STA);
WiFi.begin();
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
}
mqttClient.setServer(MQTT_broker, 1883);
mqttClient.setCallback(mqttCallBack);
delay(3000); // 3 second delay for recovery
FastLED.addLeds<LED_TYPE, DATA_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
FastLED.setBrightness(BRIGHTNESS);
}
void mqttCallBack(char* topic, byte* payload, unsigned int plLen)
{
String mqttMsg = String((char*)payload);
String mqttColour = mqttMsg.substring(0, plLen);
//Serial.print(plLen);
//Serial.print(" ");
//Serial.println(mqttColour);
int mqttColourMax = sizeof(mqttColours) / sizeof(mqttColours[0]);
for (int index = 0; index < mqttColourMax; index++)
{
if (mqttColour.equals(mqttColours[index]))
{
// Shuffle the old colours along the array
for (int indexO = NUM_LEDS; indexO > 0; indexO--)
{
leds[indexO] = leds[indexO - 1];
//Serial.print(indexO);
//Serial.print(" ");
//Serial.println(leds[indexO]);
FastLED.show();
}
//Serial.print("0 ");
//Serial.println(colourArray[index]);
leds[0] = colourArray[index];
FastLED.show();
}
}
}
void loop()
{
if (!mqttClient.connected())
{
reconnect();
}
mqttClient.loop();
}