DIYmalls 0.96" inch OLED Display Screen Module I2C IIC 128x64 SS - D - 1306 3.3V-5V Yellow+Blue for Arduino U NO Mega-2560 Nano ESP8266 NodeMCU ESP32 (Pack of 3)

-0.96 OLED connects easily using I2C over four lines (power, ground, clock, and data) at address 0x3c. The address is changeable with some soldering, but unless you really need to, don't risk it.
-The actual (7-bit) I2C address of OLED is 0x3C, not 3D, not the (8-bit) address printed on the back of screen said 0x78 or 0x7A. 0x78 is 0x3C left-shifted by 1 bit, which is how i2c addresses are sent on the bus. You must properly define this address in any sketch, or you will not get data sent to the display and may mistake it for being DOA.
- This is a "monochrome" screen with yellow LEDs on the top 1/4, and blue LEDs on the bottom 3/4 of the screen. You cannot control these colors. They are fixed. But this is useful when you want to have a heading in yellow, and then data displayed below in blue.
-You get a full 128x64 pixels, but there's a gap separating the yellow section and the blue. So you get 128x16 yellow pixels at the top, and 128x48 pixels below it, all usable, with both parts separated by a gap approximately equivalent to the width of 2 pixels.
-Comes with 3x 0.96 oled with pin headers already soldered on, so no soldering required.

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