Interface: GND connected to the negative terminal of the power supply, VCC connected to the positive terminal of the power supply, SCL as the clock signal pin, SDA as the bidirectional data communication pin. Features: OLED display offers a wide viewing angle, low power consumption, high contrast, thin profile, fast response time, and broad operating temperature range. Suitable for flexible panel applications. Operation: Supports multiple control commands for adjusting brightness, contrast, and boost circuit; capable of displaying characters and graphics. Product Name: OLED Display Compatibility: Compatible with standard microcontrollers and development boards Operating Voltage: 3.3V–5.5V Interface Type: PH2.0 4-pin terminal Mounting Hole Spacing: 8 mm Mounting Hole Diameter: 4.7 mm Color: As shown in product image Material: Plastic Package Includes: 1 × OLED Display Module Note: Due to lighting conditions and screen calibration, actual product color may vary slightly from images. Measurement tolerance: ±1–3 cm.