D-duino-B is an ESP8266+1.3OLED board.
I think ESP8266 + OLED will be very helpful when we develop some projects. Some customers tell me SMT mirco USB connector is not stable and RST button on the back is not convenient for the 1st version D-duino. So I decide to give a upgrade of D-duino-B.
D1 is always connected to OLED's SDA pin.
D2 is always connected to OLED's SCL pin.
Code example has already been put on github.
Control chip of OLED is SH1106. When you use d-duino examples to test remember change SSD1306 to SH1106
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