ESP-wroom-32 CP2102 Wifi+BT

Features 
240 MHz dual core Tensilica LX6 microcontroller with 600 DMIPS
Integrated 520 KB SRAM
Integrated 802.11 b/g/n HT40 Wi-Fi transceiver, baseband, stack and LWIP
Integrated dual mode Bluetooth (classic and BLE)
4 MB flash, memory-mapped to the CPU code space
2.3V to 3.6V operating voltage
-40°C to +125°C operating temperature
On-board PCB antenna or IPEX connector for external antenna
Ultra-low noise analog amplifier

Sensors
Hall sensor
10x capacitive touch interfaces
32 kHz crystal oscillator

34x GPIO
3 x UARTs, including hardware flow control
3 x SPI
2 x I2S
12 x ADC input channels
2 x DAC
2 x I2C
PWM/timer input/output available on every GPIO pin
OpenOCD debug interface with 32 kB TRAX buffer
SDIO master/slave 50 MHz
Supports external SPI flash up to 16 MB
SD-card interface support

Security Related
WEP, WPA/WPA2 PSK/Enterprise
Hardware accelerated encryption: AES/SHA2/Elliptical Curve Cryptography/RSA-4096

Performance
Supports sniffer, Station, SoftAP and Wi-Fi direct mode
Max data rate of 150 Mbps@11n HT40, 72 Mbps@11n HT20, 54 Mbps@11g, and 11
Mbps@11b
Maximum transmit power of 19.5 dBm@11b, 16.5 dBm@11g, 15.5 dBm@11n
Minimum receiver sensitivity of -98 dBm
135 Mbps UDP sustained throughput
5 µA power consumption in deep sleep