Samsung VFD with ESP8266 NTP clock and weather

Board:

if module ESP-01 use "Generic ESP8266 module" and set "SPIFFS 1M", check for PUYA flag.

Library requirements:

• Arduino IDE + ESP8266 SDK
• Library for 20T202DA2JA SPI VFD https://github.com/adafruit/SPI_VFD (see in Arduino IDE library)
• NtpClient + WifiUdp (see in Arduino IDE library)
• Time (see in Arduino IDE library)
• ArduinoJson (see in Arduino IDE library)
• TinyXML2 (install manually)
• WifiManager (see in Arduino IDE library)

Hardware requirements:

• 3D model of case
• Samsing VFD with serial interface, or search words: "samsung vfd 20x2", "20T202DA2J" or "20T202DA2JA"
• ESP-01 or ESP-12 module
• 5V to 3.3V DCDC

Use openweathermap.org. My URL works only for my city!