128×32 is a OLED Display based on SSD1306 Display controller chip. The display is mounted on an easy to solder PCB. The SSD1306 Display interfaces to microcontrollers through a I2C serial bus interface.
OLED Technology, Self-luminous, need no back-light (consumes less energy)
High resolution: 128 * 32
Viewing angle:> 160 degree
Supports various microcontrollers: Fully compatible For Raspberry Pi, Arduino, 51 Series, MSP430 Series, STM32 / 2, CSR IC, etc.
Ultra-low power consumption: full screen lit 0.08W
Operating Voltage: DC 3.3 ~5v
Working Temperature: :-30 ~70 celcius
Module Size: 38.0MM * 11.9MM * 3.9MM (excluding header height)
I2C/IIC Interface, needs only 2 IO pins.
4.7k pull-up resistors are needed on both SDA and SCL lines.
Driver IC: SSD1306
Pixel color: White / blue
VCC (DC 3.3 ~5v)
Documents and Downloads：
SSD1306 Display Controller Datasheet
For Arduino Library
Adafruit SSD1306 library also install Adafruit GFX library
Make sure you are correctly setting the contrast value of the LCD (by writing to command register ) or you will be able to see very dim or nothing at all on the LCD.
When you are using u8glib, please make sure that you un-comment following statement : //U8GLIB_SSD1306_128X32 u8g(U8G_I2C_OPT_NONE|U8G_I2C_OPT_DEV_0); // I2C / TWI
In case of connection with NodeMCU Modules please follow following default pinouts with Adafruit library : I2C-SDA – D2/GPIO4,I2C-SCL – D1/GPIO5