Samsung VFD with ESP8266 NTP clock and weather

Build requirements:

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

Do not forget to change build option to SPIFFS 1M. Attention! ESP-01 from PUYA can’t work with SPIFFS, module will work with default parameters! Use ESP-12 or hardcode default parameters.

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