LILYGO T-Watch 2021
Programmable ESP32 smartwatch with 1.3-inch round GC9A01 IPS touchscreen (240×240), BMA423 accelerometer, vibration motor, RTC, WiFi, and BLE 4.2 — open-source and fully programmable with Arduino or MicroPython.
$25.62
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Specifications
Components
Dual-core Xtensa LX6 processor running at 240MHz with integrated WiFi and Bluetooth 4.2/BLE.
1.3-inch round IPS LCD with capacitive touch at 240×240 resolution.
Three-axis accelerometer with built-in pedometer, step counter, and activity recognition.
Bus Interfaces
Overview
The LILYGO T-Watch 2021 is an open-source programmable smartwatch based on the ESP32 microcontroller. It features a 1.3-inch round GC9A01 IPS LCD with capacitive touch at 240×240 resolution, a BMA423 three-axis accelerometer with pedometer functionality, a vibration motor for haptic feedback, and an onboard RTC for timekeeping. With 4MB Flash and 2MB PSRAM, it supports WiFi 802.11 b/g/n and Bluetooth 4.2/BLE connectivity. The watch is programmable via Arduino or MicroPython and supports a wide range of bus interfaces including UART, SPI, I2C, CAN, I2S, and SDIO, making it a versatile platform for custom smartwatch firmware, wearable IoT applications, and health-tracking experiments.
Use Cases
4smart-watch
Wearable
Body-worn computing devices including smartwatches, fitness bands, and health monitors.
IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
Fitness Tracker
Wearable device that counts steps, monitors activity, and tracks health metrics using motion sensors.
Where to Buy
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