LilyGo T-Circle S3 with 0.75-inch Touch Display

The LilyGo T-Circle S3 is a round, highly integrated development board based on the ESP32-S3 with a built-in touch display, IMU sensor, and battery charging capability. The compact module combines computing power, sensors, and wireless communication in a single device and is ideal for wearables, smart controllers, or IoT applications. The round 0.75-inch TFT color display (240×240 pixels) with capacitive touch enables direct user interaction, while the integrated 6-axis sensor precisely detects movements and changes in position. Inside, an ESP32-S3 dual-core processor with 16 MB Flash and 8 MB PSRAM operates, supporting both Wi-Fi 2.4 GHz and Bluetooth 5 (LE + Mesh). Thanks to the integrated charging IC (ETA7003), the board can be charged or operated directly via USB-C. A JST connector allows the connection of a 3.7 V Li-Ion battery, making the board an ideal foundation for portable or mobile IoT devices. The T-Circle S3 can be programmed via the Arduino IDE, ESP-IDF, or PlatformIO, offering great flexibility for makers, developers, and educational institutions.

Recommended Accessories:

• LiPo Battery  JST 1.25

Features:

• ESP32-S3 dual-core processor with Wi-Fi and Bluetooth 5
• Round 0.75-inch color display (240×240 pixels) with touch function
• 16 MB Flash memory and 8 MB PSRAM
• Integrated 6-axis sensor (accelerometer & gyroscope)
• USB-C port for charging and programming
• Charging IC (ETA7003) for Li-Ion battery integrated
• Supports Arduino IDE, ESP-IDF, and PlatformIO

Application Examples:

• Smartwatch or fitness tracker prototypes
• Smart control devices with touch operation
• Motion or position detection in IoT systems
• Compact status displays or control units
• Portable sensor or communication modules

Documentation:

• Github 

Technical Specifications:

• Manufacturer: LILYGO
• Manufacturer SKU: H738
• Microcontroller: ESP32-S3 dual-core Xtensa LX7
• Flash Memory: 16 MB
• PSRAM: 8 MB
• Display: 0.75 inch TFT LCD, 240×240 pixels, capacitive touch
• Sensors: 6-axis IMU (accelerometer & gyro), hall sensor
• Wireless: Wi-Fi 2.4 GHz 802.11 b/g/n, Bluetooth 5 LE / Mesh
• Power supply: 3.7 V Li-Ion battery (JST 1.25 mm) or USB-C
• Charging IC: ETA7003 integrated
• Programming environment: Arduino IDE, ESP-IDF, PlatformIO
• Dimensions: 32 × 32 × 17 mm
• Weight: 20 g

Scope of Delivery:

• 1 × LilyGo T-Circle S3 with 0.75-inch touch display