OLED 1306 I2C Display
The OLED 1306 display is a popular display used in various embedded projects. It features an I2C interface, making it easy to control with just two data lines (SDA for data and SCL for clock). The 128x64 pixel display can show text, graphics, and animations with low power consumption. The I2C interface simplifies wiring and allows the display to communicate with microcontrollers using fewer pins.
Working of OLED 1306 I2C Display
The OLED 1306 display works by controlling pixels individually to produce images, text, or graphics. Since it uses the I2C protocol, communication between the microcontroller (like an Arduino or ESP32) and the display is performed through two data lines: SDA (Serial Data) and SCL (Serial Clock).
The controller sends a series of commands and data to the display to control the pixels. The display can be used to show static text or dynamic content by changing pixel values. The low power consumption of OLED displays is another advantage, making it ideal for battery-powered applications.
With the I2C interface, multiple devices can be connected to the same bus, and each device is identified by a unique address. This makes it possible to control several OLED displays or other I2C devices simultaneously with a minimal number of pins from the microcontroller.
Pinout of OLED 1306 I2C
| Pin | Label | Function |
|---|---|---|
| 1 | VCC | Power Supply (3.3V or 5V) |
| 2 | GND | Ground |
| 3 | SCL | Serial Clock Line (I2C) |
| 4 | SDA | Serial Data Line (I2C) |
| 5 | RES | Reset (optional, can be connected to VCC) |
| 6 | DC | Data/Command (optional, used to control data or command mode) |
| 7 | CS | Chip Select (optional, used in SPI mode) |
