Description:

 Processor:
- ESP32-S2FN4R2 Wi-Fi SoC

Memory:
- 4MB Flash
- 2MB PSRAM
- 320KB SRAM

Wireless Connectivity:
- 2.4 GHz Wi-Fi (802.11 b/g/n)
- Bluetooth 5 (LE)

GPIO:
- 27 digital input/output pins

Interfaces:
- ADC, DAC, I2C, SPI, UART, and USB OTG

Size:
- 34.4 × 25.4 mm

Weight: 2.4g

Serial Port Connection 

1. Press and hold the Boot Button
2. Connect the USB cable.
3. Release the Boot Button.

Flash Mode

- Press and hold the Boot button, then press and release the Reset button. After that, release the Boot button to enter flashing mode.

Package Included:

 - 1 x ESP32 S2 Mini Development Board

Video Reference