4. T-Watch MPR121¶
4.1. Description¶
The T-Watch MPR121 is an ESP32-based programmable watch kit consisting of Core PCB and MPR121 backplane. You can even program the T-Watch MPR121 with Arduino, ESP-IDF or MicroPython.
4.2. Feature¶
- Main chip: ESP32, dual core MCU (integrated dual mode Bluetooth/wifi), PMU power management
- Display: 1.54 inch LCD capacitive touch screen
- Sensor: BMA423 three-axis accelerometer, built-in step counting algorithm, activity recognition / tracking, advanced gesture recognition, etc.
- Combination kit: lithium battery, design open mold, and thick strap, and black and white
- Development platform: ESP-IDF (native SDK), Arduino, Lua, MicroPython, Scratch
- Support TF card reading and writing
- Support for expandable module use
4.3. Pin details¶
4.3.1. Display¶
ESP32 | Attribute | Description |
---|---|---|
GPIO05 | CS | TFT_CS |
GPIO18 | SCLK | TFT_SCLK |
GPIO19 | MOSI | TFT_MOSI |
GPIO27 | DC | TFT_DC |
GPIO12 | BL | TFT_BL |
4.3.2. TF Card¶
ESP32 | Attribute | Description |
---|---|---|
GPIO13 | CS | TF_CS |
GPIO15 | MOSI | TF_MOSI |
GPIO02 | MISO | TF_MISO |
GPIO14 | SCLK | TF_SCLK |