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The T-Watch S3 by LILYGO is built for makers and innovators who want to explore LoRa and ESP32-S3 technology in wearable form. Whether you’re prototyping IoT solutions, building mesh networks, or crafting smart gadgets, this TTGO watch S3 is:
Highly customizable
Versatile across applications
Perfect for experimentation and STEM projects
From smart communication to real-time control, the T-Watch S3 is your wrist-mounted playground for next-gen ideas. Ready to build something brilliant?
| MCU | ESP32-S3 |
| FLASH | 16MB |
| PS RAM | 8MB |
| Platform | Arduino-IDE, ESP-IDF, VS Code, Micropython |
| Wireless |
Wi-Fi: 802.11 b/g/n Bluetooth: BLE V5.0 |
| Onboard Functions | RTC, Microphone, MAX98357A, Power Detection, BMA423 3-axis acceleration sensor |
| DRV2605 | Haptic Driver Motor for ERM and LRA |
| AXP2101 | Highly Integrated Power Management Unit |
| SX1262 Low Power LoRa Transceiver Support Baud: 433Mhz, 868Mhz, 915Mhz |
If you need technical support regarding the LILYGO T-Watch S3 or any TTGO T-Watch products, please check the below link to find more details.
In order to be compatible with multiple versions of T-Watch, all examples include afile. For the first use, you need to define theT-Watch S3model you use in thefileconfig.hconfig.h
In the file, you can also see similar definitions, such as LILYGO_WATCH_LVGL,LILYGO_WATCH_HAS_MOTOR, this type of definition, it will be responsible for opening the defined module function, all definitions Will be available viewconfig.h
Tip: Youneed to turn on the switch whenyouturn it onfor thefirst time, and it is recommended to turn off the battery switch when it is not used for a long time.
| ESP32 | Attribute | Description |
|---|---|---|
| GPIO05 | CS | TFT_CS |
| GPIO18 | SCLK | TFT_SCLK |
| GPIO19 | MOSI | TFT_MOSI |
| GPIO27 | DC | TFT_DC |
| GPIO12 | BL | TFT_BL |
| ESP32 | Attribute | Description |
|---|---|---|
| GPIO21 | I2C | PN532_SDA |
| GPIO22 | I2C | PN532_SCL |
| GPIO39 | INT | PN532_INT |
| ESP32 | Attribute | Description |
|---|---|---|
| GPIO25 | I2S | I2S_WS |
| GPIO26 | I2S | I2S_BCK |
| GPIO33 | I2S | I2S_DOUT |
| ESP32 | Attribute | Description |
|---|---|---|
| GPIO21 | I2C | AXP202_SDA |
| GPIO22 | I2C | AXP202_SCL |
| GPIO35 | INT | AXP202_INT |
| ESP32 | Attribute | Description |
|---|---|---|
| GPIO23 | I2C | I2C_SDA |
| GPIO32 | I2C | I2C_SCL |
| GPIO38 | INT | I2C_INT |
| ESP32 | Attribute | Description |
|---|---|---|
| GPIO04 | 1-Wire | Motor |
| ESP32 | Attribute | Description |
|---|---|---|
| GPIO04 | 1-Wire | Motor |
| ESP32 | Attribute | Description |
|---|---|---|
| GPIO13 | 1-Wire | IR |
| ESP32 | Attribute | Description |
|---|---|---|
| GPIO37 | 1-Wire | RTC |