TweetMatrix.ino

#include <ESP8266WiFi.h>
#include <FastLED.h>

#include <LEDMatrix.h>
#include <LEDText.h>
#include <FontMatrise.h>

//ESP stuff
const char* ssid     = "CaseGuest";
const char* password = "";

const char* host = "api.thingspeak.com";

String tweet = "";



// Change the next 6 defines to match your matrix type and size

#define LED_PIN        6
#define COLOR_ORDER    GRB
#define CHIPSET        WS2812B

#define MATRIX_WIDTH   10
#define MATRIX_HEIGHT  10
#define MATRIX_TYPE    HORIZONTAL_ZIGZAG_MATRIX

cLEDMatrix<MATRIX_WIDTH, MATRIX_HEIGHT, MATRIX_TYPE> leds;

cLEDText ScrollingMsg;

const unsigned char TxtDemo[] = { EFFECT_FRAME_RATE "\x04" EFFECT_SCROLL_LEFT tweet(String)};

void setup()
{
  Serial.begin(9600);
  delay(1000);
  
  //wifi connection stuff
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
  
  WiFi.begin(ssid, password);
  
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected");  
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());  
  

  
  FastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds[0], leds.Size());
  FastLED.setBrightness(100);
  FastLED.clear(true);
  delay(500);
  FastLED.showColor(CRGB::Red);
  delay(1000);
  FastLED.showColor(CRGB::Lime);
  delay(1000);
  FastLED.showColor(CRGB::Blue);
  delay(1000);
  FastLED.showColor(CRGB::White);
  delay(1000);
  FastLED.show();

  ScrollingMsg.SetFont(MatriseFontData);
  ScrollingMsg.Init(&leds, leds.Width(), ScrollingMsg.FontHeight() + 1, 0, 0);
  ScrollingMsg.SetText((unsigned char *)TxtDemo, sizeof(TxtDemo) - 1);
  ScrollingMsg.SetTextColrOptions(COLR_RGB | COLR_SINGLE, 0xff, 0x00, 0xff);
}


void loop()
{
  getTweet();
  
  for(int x=0;x<100;x++)
  {
  if (ScrollingMsg.UpdateText() == -1)
    ScrollingMsg.SetText((unsigned char *)TxtDemo, sizeof(TxtDemo) - 1);
  else
    FastLED.show();
  delay(10);
  }
  Serial.println("hey");
  delay(10000);
}

void getTweet()
{
  delay(1000);
  Serial.print("connecting to ");
  Serial.println(host);
  
  // Use WiFiClient class to create TCP connections
  WiFiClient client;
  const int httpPort = 80;
  if (!client.connect(host, httpPort)) {
    Serial.println("connection failed");
    return;
  }
  
  // We now create a URI for the request
  String url = "/channels/225462/fields/1/last.txt";
  Serial.print("Requesting URL: ");
  Serial.println(url);
  
  // This will send the request to the server
  client.print(String("GET ") + url + " HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" + 
               "Connection: close\r\n\r\n");
  delay(500);

  // Read all the lines of the reply from server and print them to Serial
  int x = 0;
  while(client.available())
  {

    String line = client.readStringUntil('\r');
    
    if(x == 19)
    {
      Serial.println(line.substring(21));
      tweet = line;
    }
    
    
    //String line = client.readStringUntil('\r');
    //Serial.println(line + "LineNumber: " + x);
    x++;
  }
  
  Serial.println();
  Serial.println("closing connection");
  
}