The 1.3-inch OLED Navigation Module combines a crisp 128×64 pixel OLED display with an EC11 rotary encoder and two dedicated push buttons onto a single compact PCB — delivering a complete, ready-to-use front panel UI solution for menu navigation, parameter adjustment, and interactive control in embedded projects without any external wiring between separate components.

The 1.3-inch SH1106-driven OLED delivers sharp, high-contrast monochrome white-on-black visuals with no backlight required, ensuring crisp readability even in bright environments at minimal power consumption. The display communicates via I²C at a default address of 0x3C, requiring only two wires (SDA and SCL) from your microcontroller — keeping GPIO usage to an absolute minimum. An onboard solder jumper allows the I²C address to be switched to 0x3D when running two modules on the same bus.

The EC11 rotary encoder provides 20 pulses per rotation with 20 detents for satisfying, precise step-by-step navigation through menus and settings — with a built-in push-button function on the PSH pin for confirm/select actions. A dedicated CON (KEY1) confirm button and BAK (KEY0) back/return button round out the navigation set, giving your project a full four-input UI panel in one module. Onboard 4.7kΩ pull-up resistors on the I²C lines remove the need for external pull-ups. Fully compatible with Arduino, ESP32, Raspberry Pi, and STM32, and supported by the U8g2, Adafruit SSD1306, and U8x8 display libraries.