Arduino ESP-32 Wifi+Bluetooth Develop Board CP2102 Interface

In addition to Wi-Fi, the NodeMCU ESP32 also features a Bluetooth interface. The integrated CP2102 allows you to easily program the board via micro-USB.

Specifications
Processor: Tensilica LX6 dual-core
Clock speed: 240 MHz
SRAM: 512 kB
Memory: 4 MB
Wireless standard: 802.11 b/g/n
Frequency: 2.4 GHz
Bluetooth: Classic / LE
Data interfaces: UART / I2C / SPI / DAC / ADC
Operating voltage: 3.3 V (can be operated via 5-V micro-USB)
Operating temperature: -40 to 125°C
Dimensions: 48 x 26 x 11.5 mm