カウントダウンだけで宴会は盛り上がるをIoT化してみた。

Q. 飲み会で一番盛り上がる瞬間は？

A. カンパイ！

# include <ESP8266WiFi.h>
# include <Adafruit_NeoPixel.h>
# include <Milkcocoa.h>

# define WLAN_SSID "" // Wi-Fi
# define WLAN_PASS "" // Wi-Fi

# define MOTORPIN 5 // Wio-Node IO5 => MOTOR
# define LEDPIN 4 // Wio-Node IO4 => WS2812
# define NUMPIXELS 5 // Number of LEDs
Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUMPIXELS, LEDPIN, NEO_GRB + NEO_KHZ800);

WiFiClient client;

# define MILKCOCOA_APP_ID "" // MilkCocoa Application ID
# define MILKCOCOA_DATASTORE "" // MilkCocoa Datastore Name
# define MILKCOCOA_SERVERPORT 1883

const char MQTT_SERVER[] PROGMEM = MILKCOCOA_APP_ID ".mlkcca.com";
const char MQTT_CLIENTID[] PROGMEM = __TIME__ MILKCOCOA_APP_ID;

Milkcocoa milkcocoa = Milkcocoa(&client, MQTT_SERVER, MILKCOCOA_SERVERPORT, MILKCOCOA_APP_ID, MQTT_CLIENTID);

int red, green, blue, strength, timer;

void onpush(DataElement *elem) {
 Serial.println("onpush");
 Serial.print("r:");
 Serial.print(elem->getInt("r"));
 Serial.print(",g:");
 Serial.print(elem->getInt("g"));
 Serial.print(",b:");
 Serial.print(elem->getInt("b"));
 Serial.print(",s:");
 Serial.print(elem->getInt("s"));
 Serial.print(",t:");
 Serial.print(elem->getInt("t"));
 Serial.println();

 red = elem->getInt("r");
 green = elem->getInt("g");
 blue = elem->getInt("b");
 strength = elem->getInt("s");
 timer = elem->getInt("t");

 if (strength) {
// countdown(red, green, blue);
 countdown(255, 0, 0);
 digitalWrite(MOTORPIN, HIGH); 
 delay(5000);
 digitalWrite(MOTORPIN, LOW); 
 } else {
 led(0, 255, 0);
 }
}

void led(int v_r, int v_g, int v_b) {
 strip.setBrightness(50);
 for(int i=0;i<NUMPIXELS;i++){
 strip.setPixelColor(i, strip.Color(v_r, v_g, v_b));
 strip.show();
 delay(50);
 }
}

void countdown(int v_r, int v_g, int v_b) {
 strip.setBrightness(50);
 int v_t;
 if (timer) {
 v_t = timer;
 } else {
 v_t = NUMPIXELS;
 }
 for(int i=0;i<v_t;i++){
 strip.setPixelColor(i, strip.Color(v_r, v_g, v_b));
 strip.show();
 }
 for(int i=0;i<v_t;i++){
 strip.setPixelColor(v_t-i-1, strip.Color(0, 0, 0));
 strip.show();
 delay(1000);
 }
}

void setupWiFi() {
 Serial.println(); Serial.println();
 Serial.print("Connecting to ");
 Serial.println(WLAN_SSID);
 WiFi.begin(WLAN_SSID, WLAN_PASS);
 while (WiFi.status() != WL_CONNECTED) {
 delay(500);
 Serial.print(".");
 }
 Serial.println();
 Serial.println("WiFi connected");
 Serial.println("IP address: ");
 Serial.println(WiFi.localIP());
}

void setup() {
 pinMode(15, OUTPUT); // for Wio-Node
 digitalWrite(15, 1); // for Wio-Node
 Serial.begin(115200);
 strip.begin();
 strip.show(); // Initialize all pixels to 'off'
 setupWiFi();
 Serial.println( milkcocoa.on(MILKCOCOA_DATASTORE, "push", onpush) );
 pinMode(MOTORPIN, OUTPUT); 
}

void loop() {
 milkcocoa.loop();
 led(255,255,255);
}