Description
Product Overview
The 0.96 Inch OLED Display with 4×4 Matrix Keypad is an all-in-one human-machine interface (HMI) solution specifically designed for makers, engineers, and embedded developers . This innovative module combines a crisp White OLED display with a responsive 16-button tactile keypad, allowing you to build interactive control panels, menu systems, and data entry interfaces without the mess of complex wiring.
Traditionally, connecting a 4×4 matrix keypad requires 8 individual digital I/O pins, which consumes significant resources on your microcontroller . This module solves that problem by integrating an I2C interface for both the display and the keypad. Both components share the same two-wire bus (SDA/SCL), saving valuable pins for other sensors and actuators .
At the heart of the display is the advanced SSD1315 driver IC, which is a drop-in upgrade from the classic SSD1306. It features a built-in 128 x 64-bit SRAM buffer, supports 256-step contrast control, and ensures a wide -40°C to 85°C operating temperature range . Whether you are creating a smart home thermostat, a retro gaming console, or a data logging terminal, this module provides the perfect balance of visual feedback and input control.
Key Features
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Integrated Design: Combines a 0.96″ White OLED and a 4×4 Matrix Keypad on a single compact PCB.
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I2C Communication: Uses only 2 pins (SDA/SCL) to control the display and read the keyboard, leaving your microcontroller’s other pins free .
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High-Contrast Display: 128×64 pixel resolution with bright white graphics on a true black background, offering excellent visibility and wide viewing angles .
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Advanced SSD1315 Driver: Features a built-in 128×64-bit SRAM buffer, internal oscillator, and charge pump, reducing external component requirements .
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Tactile Keypad: 16 physical buttons arranged in a 4×4 matrix provide responsive tactile feedback for robust user input .
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Wide Compatibility: Fully compatible with Arduino, ESP32, ESP8266, Raspberry Pi, and STM32 via the I2C protocol .
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Durable & Reliable: Industrial-grade design with a wide operating temperature range of -40°C to 85°C .
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Low Power Consumption: OLED technology consumes power only on lit pixels, making it ideal for battery-powered applications .
Technical Specifications
| Parameter | Value |
|---|---|
| Display Type | Graphic OLED (Passive Matrix) |
| Display Color | White |
| Resolution | 128 × 64 pixels |
| Active Area | 21.744 × 10.864 mm |
| Module Size (approx.) | 84 × 36 mm |
| Driver IC | SSD1315 |
| Interface | I2C (Display + Keypad share bus) |
| Keypad Type | 4 x 4 Matrix Membrane / Tactile |
| Operating Voltage | 3.3V – 5V DC |
| Operating Temperature | -40°C to +85°C |
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