0.71inch DualEye LCD Module
0.71inch DualEye LCD Module is a 0.71inch dual-eye LCD module that uses two 160 × 160 pixel round IPS screens, with a built-in GC9D01 driver chip, communicating via an SPI interface. The module can be used with controllers such as ESP32, Raspberry Pi Pico, and Arduino for applications such as simulated electronic eyes or wearable devices.
| SKU | Product |
|---|---|
| 29381 | 0.71inch DualEye LCD Module |
Product Specifications
| Parameter | Specification |
|---|---|
| Operating Voltage | 3.3 V / 5 V |
| Resolution | 160 × 160 pixels |
| Display Driver | GC9D01 |
| Communication Interface | 4-wire SPI |
| Display Panel | IPS |
| Display Size | 18 × 18 mm |
| Pixel Pitch | 0.0375 × 0.1125 mm |
| Product Dimensions | 20.00 × 51.00 mm |
Pinout

| Pin | Description |
|---|---|
| VCC | Power supply positive (3.3 V / 5 V input) |
| GND | Ground |
| DIN | SPI communication MOSI pin |
| CLK | SPI communication SCLK pin |
| CS1 | EYE1 chip select pin, active low |
| CS2 | EYE2 chip select pin, active low |
| DC | Data/Command pin, low for command, high for data |
| RST1 | EYE1 reset pin, active low |
| RST2 | EYE2 reset pin, active low |
| BL1 | EYE1 backlight control pin |
| BL2 | EYE2 backlight control pin |
Communication Protocol

This LCD uses a 4-wire SPI communication interface. SPI communication controls data transmission timing through the combination of clock phase (CPHA) and clock polarity (CPOL). This module uses SPI Mode 0: CPOL = 0 (idle low), CPHA = 0 (sampled on the first edge), with the most significant bit first and the least significant bit last.
Product Dimensions

