1. Display panel: LCD
2. Display size: 1.85 inches
3. Resolution: 360 x 360
4. Display color: 262K colors
5. Display interface: QSPI
6. Display driver: ST77916
7. Touch chip: CST816S
8. Touch interface: I2C
9. Interface: USB Type-C
10. Main control chip: ESP32-S3R8
11. SRAM / ROM: 512KB SRAM / 384KB ROM
12. PSRAM / Flash: 8MB PSRAM / 16MB Flash
13. Screen type: TFT LCD
14. Screen control chip: Display: ST77916; Touch: CST816S
15. On-board equipment:
- QMI8658 six-axis sensor
- ES8311 audio codec chip
- ES7210 echo cancellation algorithm chip
- BQ27220 battery detection chip
- PCF85063 real-time clock
- Dual microphone array
- On-board speaker pad - Micro SD
- Lithium battery charging and discharging interface
16. Exposed interfaces: I2C, UART, USB pads
17. Power supply interface: USB Type-C / 3.7V lithium battery interface
18. Equipped with ESP32-S3R8 high-performance Xtensa 32-bit LX7 dual-core processor, with a main frequency of up to 240 MHz
19. Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with built-in antenna
20. Built-in 512KB SRAM and 384KB ROM, sealed with 8MB PSRAM and externally connected 16MB Flash
21. Adopting Type-C interface, enhancing user convenience and device compatibility
22. Equipped with a 1.85-inch capacitive touch high-definition LCD screen, 360 × 360 resolution, 262K color
23. Equipped with ST77916 driver chip and CST816S capacitive touch chip, communicating via QSPI and I2C interfaces respectively, occupying fewer interface pin resources
24. Equipped with dual microphone arrays, capable of implementing noise reduction and echo cancellation audio algorithms, suitable for precise voice recognition and near-field/far-field voice wake-up applications
25. Equipped with QMI8658 six-axis inertial measurement unit (3-axis acceleration, 3-axis gyroscope)
26. Equipped with PWR power switch-off button and BOOT user-defined button, facilitating function development
27. Equipped with 3.7V MX1.25 lithium battery charging and discharging interface
28. Exposed 1 GPIO, 1 UART and 1 USB interface, available for external devices and debugging use, flexible configuration of peripheral functions