The LILYGO T-Watch 2021 is an ESP32-based programmable smartwatch designed for IoT development, smart wearables, and custom applications. Featuring a 1.3-inch capacitive touch IPS LCD screen, Wi-Fi, Bluetooth, vibration motor, and real-time clock (RTC), this device is ideal for embedded development projects. Key Features ESP32 T-Micro32 Plus MCU with Wi-Fi & Bluetooth BLE 4.2 support. 1.3-inch round IPS capacitive touch screen (GC9A01). 240×240 high-resolution display for clear visuals. BMA423 three-axis accelerometer for motion sensing and pedometer functions. Vibration motor & RTC (Real-Time Clock) for enhanced functionality. Multiple communication interfaces: UART, SPI, I2C, CAN, I2S, SDIO. Supports T-U2T Flash Upload Tool for fast and easy programming. Specifications Feature Details MCU T-Micro32 Plus Flash Memory 4MB PSRAM 2MB Wireless Wi-Fi 802.11 b/g/n, Bluetooth BLE 4.2 Bus Interfaces UART, SPI, I2C, CAN, I2S, SDIO Screen 1.3-inch GC9A01 Capacitive Touch IPS LCD Resolution 240×240 pixels Accelerometer BMA423 (Three-axis acceleration, Pedometer) Onboard Functions RTC, Power Detection, Vibration Motor, Charging Detection Programming USB Type-C + T-U2T Flash Upload Tool Pin Diagram Refference [Github] T Watch 2021 Applications Smart Wearables & Custom Smartwatch Projects IoT & Embedded Systems Development Real-Time Data Monitoring & Display Motion Sensing & Fitness Applications Wireless Communication & BLE-based IoT Solutions Package Contents 1 x T-WATCH-2021 1 x Power Cable Note: No case or battery is included. Users must configure their own. 3D printable case files are available for custom enclosure design. Important Information: Due to the lack of a built-in download chip on the mainboard, the T-Watch 2021 requires a T-U2T USB downloader for flashing programs. If you don’t already have a T-U2T, you need to purchase the compatible version. If you already own a T-U2T, you only need the corresponding T-U2T series products, so there’s no need to purchase additional ones.
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