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DESCRIPTION

HICENDA The 1.3-inch OLED display module, model HT130C, is a high-performance passive matrix display designed for compact embedded applications. With a resolution of 128×64 dots, this module employs either the SSD1306 or SH1106 driver IC, communicating via the SPI interface. The module features a monochrome output in white or blue, a 6-pin configuration, and supports a wide operating temperature range from -20°C to +70°C. Its precise pixel pitch of 0.23 mm and IPS viewing orientation contribute to excellent display clarity across angles, making it suitable for wearables, portable electronics, and industrial instrumentation.

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GENERAL SPECIFICATION

Structural and Display Characteristics

OLED Technology Fundamentals

OLED (Organic Light Emitting Diode) panels emit light individually from each pixel, requiring no backlight and offering high contrast, rapid response, and superior viewing angles. The HT130C utilizes a passive matrix structure driven at a 1/64 duty cycle, allowing for power-efficient performance while preserving brightness and visibility.

Physical Dimensions and Viewing Attributes

Engineered for embedded environments, the module maintains a slim profile (3.1 mm thick) while offering a generous active display area of 31.42 mm × 16.7 mm. Its IPS-like display alignment ensures stable contrast and color reproduction from a wide range of viewing directions, supporting user-centric applications.

Interface and Driver IC Considerations

SPI Communication Protocol

The SPI (Serial Peripheral Interface) is preferred in embedded systems for its speed and simplicity. The 1.3-inch OLED module supports standard SPI signaling with a 6-pin connection, facilitating quick integration with microcontrollers like Arduino, STM32, or ESP32.

SSD1306 vs SH1106 Drivers

The SSD1306 and SH1106 are two widely used display controllers for OLED modules. While both support 128×64 resolutions, the SH1106 features a 132×64 internal buffer, offering slightly different memory addressing. Developers should verify compatibility within firmware libraries such as U8g2 or Adafruit SSD1306.

Applications and Implementation

Practical Use Cases

This module is widely adopted in environments requiring compact graphical output and low-power operation, including:

Wearable electronics and health monitors

Industrial control terminals

Battery-powered IoT devices

DIY projects and development platforms

Integration Advice

To ensure optimal performance, designers should:

Ensure stable voltage supply (commonly 3.3V or 5V with level shifting)

Observe SPI timing constraints for clean signal transmission

Choose compatible libraries that distinguish between SSD1306 and SH1106 memory mapping

Provide adequate decoupling capacitors near the power supply input

DRAWING

INTERFACE PIN FUNCTION

Summary and Perspective

In conclusion, the HT130C 1.3-inch OLED module is a well-balanced solution combining display clarity, hardware simplicity, and environmental reliability. Its straightforward SPI interface, paired with established controller ICs and mature firmware support, makes it a versatile and future-proof choice for engineers, makers, and system integrators. Whether you're crafting a commercial product or a personal project, this module offers a compact yet robust visual output that scales across industries and innovations.