Specifications:
- Xtensa LX7 dual-core, 32-bit processor up to 240 MHz
- 8 MB Flash, 8 MB PSRAM, onboard SD card slot (32 GB FAT support)
- 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth BLE 5.0 Dual Mode support
- 11x GPIOs (all support PWM): 1x UART, 1x IIC, 1x IIS, 1x SPI, 9x 12-bit ADC
- 1x User LED, 1x Charge LED, 1x B2B Connector (for camera board)
- 1x Reset button, 1x Boot button
- 1x camera sensor board with OV2640 camera (1600x1200 px) and digital microphone, compatible with OV5640
- 1x FPC antenna with connector
- input voltage: USB Type-C 5V or BAT 4.2 V
- onboard 100 mA battery charger
- working temperature: -40°C ~ +65°C
- 21x17.5x15 mm (with expansion board)
Getting started guide
TinyML Case Studies (PDF)