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1.28-Inch Round TFT LCD Display Module 240x240 RGB GC9A01 SPI Interface

$19.68 USD

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1.28-Inch Round TFT IPS LCD Display Module — 240×240 GC9A01 SPI

Add a stunning circular display to your next project with this 1.28-inch round IPS TFT LCD module. Driven by the GC9A01 controller over a simple 4-pin SPI interface, it delivers crisp 240×240 resolution with full viewing angle IPS technology — making it the go-to choice for DIY smartwatch faces, round instrument clusters, wearable HMIs, and compact embedded displays.

Available in three variants: the classic round display, a square version, and a red-PCB round version — all sharing the same GC9A01 driver and pinout for drop-in compatibility.

Technical Specifications

Display Size: 1.28 inch diagonal, circular active area Ø32.4mm
Resolution: 240 × 240 pixels (RGB)
Driver IC: GC9A01
Display Type: IPS TFT LCD, 65K colors
Interface: 4-pin SPI (MOSI, SCK, CS, DC) + RST, BL
Header Pitch: 2.54mm, 8-pin
Working Voltage: 2.8V – 3.3V (logic); 5V tolerant with onboard level shifter (variant dependent)
Viewing Angle: Full angle (IPS panel)
Panel Size: 35.6 × 38.1 × 1.5mm
PCB Size: 44 × 36 × 5mm
Operating Temperature: −20°C to +70°C
Operating Humidity: 5% – 95% RH (non-condensing)

Available Variants

1.28 TFT Round — standard circular display, black PCB
1.28 TFT Red — circular display, red PCB
1.28 TFT Square — square IPS display, same GC9A01 driver and pinout

SPI Pinout (Standard)

VCC — 3.3V or 5V power
GND — Ground
SCL / SCK — SPI clock
SDA / MOSI — SPI data
CS — Chip select (active low)
DC / RS — Data/Command select
RST — Reset (active low)
BL — Backlight control (PWM dimmable)

Compatible Platforms & Libraries

Arduino — TFT_eSPI library (Bodmer), configure for GC9A01 driver; also compatible with Adafruit GFX
ESP32 / ESP8266 — TFT_eSPI with hardware SPI for high refresh rates
Raspberry Pi Pico (RP2040) — MicroPython gc9a01 library available
STM32 — HAL SPI with GC9A01 initialization sequence
LVGL — compatible display driver for advanced GUI development

Typical Applications

DIY smartwatch and fitness tracker displays
Round instrument cluster gauges (speed, RPM, temperature)
Wearable HMI and status displays
Portable weather station displays
ESP32-based clock and calendar displays
Industrial round panel meters
Retro-style analog gauge simulators

GC9A01 vs ST7789: Why Round?

The GC9A01 is specifically designed for circular display panels, with built-in support for the non-rectangular active area. Unlike rectangular ST7789 or ILI9341 displays, the GC9A01 renders a true circle without masking — making it the only practical choice for smartwatch-style and round instrument applications.