Watch @EmojiTetra Live on ESP32 OLED Display https://yoursunny.com/t/2018/EmojiTetra-OLED/

emojitetra-server.py

#!/usr/bin/python3

# Watch @EmojiTetra Live on ESP32 OLED Display
# https://yoursunny.com/t/2018/EmojiTetra-OLED/

import datetime
import re
import twitter
from http.server import HTTPServer, BaseHTTPRequestHandler

twttr = twitter.Api(consumer_key='XXXXXXXXXXXXXXXXXXXXXXXXX',
                    consumer_secret='XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX',
                    access_token_key='88888888-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX',
                    access_token_secret='XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX')


class Handler(BaseHTTPRequestHandler):
    def do_GET(self):
        if self.path == '/robots.txt':
            self.handleRobotsTxt()
        elif self.path == '/emojitetra.txt':
            self.handleEmojiTetra()
        else:
            self.send_response(404)
            self.end_headers()

    def handleRobotsTxt(self):
        self.send_response(200)
        self.send_header('Content-Type', 'text/plain')
        self.end_headers()
        self.wfile.write('User-Agent: *\nDisallow: /\n'.encode('ascii'))

    def handleEmojiTetra(self):
        timeline = twttr.GetUserTimeline(
            screen_name='EmojiTetra', count=5, trim_user=True)
        ok = False
        for tweet in timeline:
            lines = tweet.text.split('\n')
            if len(lines) != 11:
                continue
            ts = datetime.datetime.strptime(
                tweet.created_at, '%a %b %d %H:%M:%S %z %Y').replace(tzinfo=None)
            since = (datetime.datetime.utcnow() - ts).total_seconds()
            score = lines[8][8:].strip()
            output = '{}\n{}\n'.format(since, score)
            for i, line in enumerate(lines):
                for ch in line[:7]:
                    if ch == '\u25fd':
                        output += '.'
                    else:
                        output += 'X'
                output += '\n'
            ok = True
            break

        if not ok:
            self.send_response(503)
            self.end_headers()
            return
        self.send_response(200)
        self.send_header('Content-Type', 'text/plain')
        self.end_headers()
        self.wfile.write(output.encode('ascii'))


def run(port=8000):
    httpd = HTTPServer(('', port), Handler)
    httpd.serve_forever()


if __name__ == '__main__':
    import argparse
    parser = argparse.ArgumentParser(description='EmojiTetra HTTP server.')
    parser.add_argument('--port', type=int, default=8000,
                        help='listening port number')
    args = parser.parse_args()
    run(port=args.port)

EmojiTetra.ino

// Watch @EmojiTetra Live on ESP32 OLED Display
// https://yoursunny.com/t/2018/EmojiTetra-OLED/

#include <HTTPClient.h>
#include <U8g2lib.h> // https://github.com/olikraus/U8g2_Arduino/tree/e4178df6b8c69f1880d6d44719a286540e9e94a5
#include <WiFi.h>

const char* WIFI_SSID = "my-wifi";
const char* WIFI_PASS = "my-password";

U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, 15, 4, 16);

void
setup()
{
  Serial.begin(115200);
  Serial.println();

  WiFi.begin(WIFI_SSID, WIFI_PASS);
  Serial.println("WiFi connecting");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.println(WiFi.status());
  }
  Serial.println("WiFi OK");
  delay(1000);

  u8g2.begin();
  u8g2.setFont(u8g2_font_helvR08_tf);
  u8g2.setDisplayRotation(U8G2_R3);
}

void
display(const String& r)
{
  u8g2.clearBuffer();

  int pos0 = r.indexOf('\n');
  u8g2.drawStr(0, 8, r.substring(0, pos0).c_str());
  int pos1 = r.indexOf('\n', pos0 + 1);
  u8g2.drawStr(0, 18, r.substring(pos0 + 1, pos1).c_str());

  pos0 = pos1 + 1;
  for (int i = 0; i < 11; ++i) {
    pos1 = r.indexOf('\n', pos0);
    for (int j = 0; j < pos1 - pos0; ++j) {
      int x = j * 9;
      int y = 28 + i * 9;
      if (r[pos0 + j] == 'X') {
        u8g2.drawBox(x, y, 8, 8);
      }
    }
    pos0 = pos1 + 1;
  }

  u8g2.sendBuffer();
}

void
loop()
{
  Serial.println("HTTP request");
  HTTPClient http;
  http.begin("http://house-server.example:8000/emojitetra.txt");
  int httpCode = http.GET();
  Serial.print("HTTP code ");
  Serial.println(httpCode);
  if (httpCode == 200) {
    String payload = http.getString();
    Serial.println(payload);
    display(payload);
  }
  http.end();

  delay(15000);
}