jeje

/*
 Sketch which publishes temperature data from a DS1820 sensor to a MQTT topic.

 This sketch goes in deep sleep mode once the temperature has been sent to the MQTT
 topic and wakes up periodically (configure SLEEP_DELAY_IN_SECONDS accordingly).

 Hookup guide:
 - connect D0 pin to RST pin in order to enable the ESP8266 to wake up periodically
 - DS18B20:
     + connect VCC (3.3V) to the appropriate DS18B20 pin (VDD)