ESP32 WiFi & Bluetooth Dual-Core MCU Module

The ESP32 WiFi and Bluetooth chip is the latest generation of Espressif products. It has a dual-core 32-bit MCU, which integrates WiFi HT40 and Bluetooth/BLE 4.2 technology inside

Specifications
CPU and Memory
Xtensa Dual-Core 32-bit LX6 microprocessors, up to 600 DMIPS
448 KByte ROM
520 KByte SRAM
16 KByte SRAM in RTC
QSPI Flash/SRAM, up to 4 x 16 MBytes
Power supply: 2.2 V to 3.6 V
Clocks and Timers
Internal 8 MHz oscillator with calibration
Internal RC oscillator with calibration
External 2 MHz to 40 MHz crystal oscillator
External 32 kHz crystal oscillator for RTC with calibration
Two timer groups, including 2 x 64-bit timers and 1 x main watchdog in each group
RTC timer with sub-second accuracy
RTC watchdog
Advanced Peripheral Interfaces
12-bit SAR ADC up to 18 channels
2 8-bit D/A converters
10 touch sensors
Temperature sensor
4 SPI
2 I2S
2 I2C
3 UART
1 host (SD/eMMC/SDIO)
1 slave (SDIO/SPI)
Ethernet MAC interface with dedicated DMA and IEEE 1588 support
CAN 2.0
IR (TX/RX)
Motor PWM
LED PWM up to 16 channels
Hall sensor
Ultra low power analog pre-amplifier
Development Support
SDK Firmware for fast on-line programming
Open source toolchains based on GCC
Operating Temperature Range: -40 C to + 85 C
Package size: 18mm x 25mm x 3mm

Documents :
- ESP WROOM 32 Datasheet : https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf