Retro Style OLED Clock Sync Over WiFi

After playing with my ESP-12E Module and reading the Internet Time via NTP-Client, I got the Idea to make a nice OLED Clock with it, using the Special 7-Segment Character Set I designed previously for the Didel 1306 Graphic Library.

I had also to adapt the Didel Library so its working now with wire.h, so it works not only on UNO or MEGA, but also on ESP8266, STM32 and others.

The Clock gets the Time over your Wifi at startup, and then every day once get synched around midnight.

Connection Plan is quite simpe, only 4 wires to the I2C OLED

From OLED pins to ESP-12 Pins :

GND to G

Vcc to 3V

SCL to D1

SDA to D2