LILYGO T-Circle

Note: T-Circle is the ESP32 version. Click here to switch to the ESP32-S3 versionT-Circle S3版本

Introduction

LILYGO T-Circle is an ESP32-based development board featuring a 0.75-inch round TFT LCD display, with a 160×160 resolution and 262K color support. It integrates the CST816D capacitive touch controller for accurate and responsive touch interaction.

The hardware utilizes the GCPD01N driver chip and connects to external devices via 12 pins, including 3.3V power, SPI interface (MOSI/SCK/CS), I2C communication lines (SDA/SCL), and a BLE enable pin (BLEEN). It is compatible with development frameworks like Arduino.

With its compact design combining high-precision display, capacitive touch, and low-power wireless communication, the T-Circle is ideal for smartwatches, IoT device interfaces, and miniature embedded system prototyping.

Appearance and function introduction

Appearance

Pinmap

Module Information and Specifications

Description

Related Links

Github:T-Circle

• GC9D01N
• TFT_eSPI-2.5.43
• MAX98357A
• MSM261S4030H0R)
• MP34DT05-A

Schematic Diagram

T-Circle-S3

Dependency Libraries

• Arduino_DriveBus-1.1.16
• Arduino_GFX-1.3.7
• ESP32-audioI2S-3.0.6
• DFRobot_MSM261
• FastLED-3.6.0

Software Design

Arduino Set Parameters

Development Platform

1. VS Code
2. Arduino IDE
3. Platform IO

Product Technical Support