ESP-WROOM-32 WiFi & BLE 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.

Compared to the ESP8266 (the previous generation), the ESP-WROOM-32 has a significant performance improvement. It is equipped with a high-performance dual-core Tensilica LX6 MCU. One core handles high speed connection and the other for standalone application development. The dual-core MCU has a 240 MHz frequency and a computing power of 600 DMIPS. In addition, it supports Wi-Fi HT40, Classic Bluetooth/BLE 4.2, and more GPIO resources.

ESP32 chip integrates a wealth of hardware peripherals, including capacitive touch sensors, Hall sensors, low noise sensor amplifiers, SD card interfaces, Ethernet interfaces, high-speed SDIO / SPI, UART, I2S and I2C, etc. Engineered for mobile devices, wearable electronics and Internet of Things (IoT) applications, the ESP32 achieves ultra-low power consumption with a combination of several proprietary software applications. The state-of-the-art power saving features include fine resolution clock gating, power modes, and dynamic power scaling.

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Specifications and Features of ESP-WROOM-32

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

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