The 0.91 Blue OLED Display with I2C/IIC Serial Interface Module is a compact OLED display module designed for displaying text, numbers, symbols, and small graphics in embedded electronics projects. Unlike traditional LCD displays, OLED screens use self-illuminating pixels, which means they do not require a backlight. This results in lower power consumption, higher contrast, and better readability even in dim environments.
This 0.91 OLED Display Module provides a resolution of 128 × 32 pixels and communicates through an I2C (Inter-Integrated Circuit) interface, requiring only two data lines (SDA and SCL, which stand for Serial Data Line and Serial Clock Line, respectively). Because of this simplified communication, the display can easily be connected to popular development boards such as Arduino, ESP32, ESP8266, Raspberry Pi, and STM32 microcontrollers.
In many electronics projects, a small display module is required to show sensor readings, device status, or system messages. This module is commonly used with sensors, microcontrollers, LEDs, resistors, and other components during prototyping. Engineers and students often use it to visualize data from temperature sensors, IoT systems, robotics controllers, and monitoring devices.
StemVolt provides this display module as a practical solution for electronics learners working on microcontroller-based projects.
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Features:
• OLED technology provides high contrast and clear blue display output
• I2C / IIC communication reduces the number of required microcontroller pins
• Wide operating voltage range from 2.8V to 5V
• Compact PCB design suitable for space-limited projects
• Self-illuminating pixels remove the need for backlight circuitry
• Wide viewing angle up to 160° for better visibility
• Easy integration with Arduino, ESP32, and other microcontrollers
Technical Specifications:
| Specification | Details |
|---|---|
| Display Type | OLED (Organic Light Emitting Diode) |
| Screen Size | 0.91 inch |
| Display Color | Blue |
| Interface | I2C / IIC |
| Operating Voltage | 2.8V – 5V DC |
| Resolution | 128 × 32 pixels |
| Power Consumption | Low, self-illuminating |
| Viewing Angle | Up to 160° wide angle |
| Compatibility | Arduino, Raspberry Pi, ESP32, ESP8266, STM32 |
| Dimensions | Approx. 38mm × 12mm |
| Backlight | Not required (self-illuminated) |
 Applications:
• Electronics prototyping and circuit learning
• Robotics control interface displays
• IoT sensor data monitoring systems
• Embedded system status indicators
Package Includes:
• 1 × 0.91 Blue OLED Display with I2C/IIC Serial Interface Module
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