ESP-WROOM-32 ESP32 ESP-32 ESP8266 WiFi/WLAN+Bluetooth Module Dual Core 240MHz

ESP32 function block diagram

• ESP32 is a WiFi and Bluetooth system-on-chip (SoC) with industry-leading RF performance, low power and high integration advantages. The ESP32 integrates complete transmit / receive RF functions including antenna switches, RF balun, power amplifiers, low noise amplifiers, filters, power management modules and advanced self-calibration circuitry. The self-calibration circuit implements dynamic auto-tuning to eliminate defects in external circuitry. ESP32 with two 32-bit, LX6 CPU, clocked at up to 240MHz, using 7-level pipeline architecture. ESP32 also integrates a wealth of analog sensing and digital interface.

• ESP32's ultra-low-power RF architecture and patented power-saving technology extend the battery life of practical applications.

• ESP32 fully complies with WiFi 802.11b / g / n / e / i and Bluetooth 4.2 standards, integrated WiFi / Bluetooth / BLE RF and low power technology, and supports open real-time operating system RTOS. ESP32's integrated tuning cache helps improve system performance and optimize system storage. The flexible RAM / ROM partition architecture allows users to customize to meet specific requirements and usage.

• ESP32 can be used as a standalone application or as a slave for a host MCU. As a slave, the ESP32 provides WiFi and Bluetooth via the SPI / SDIO or I2C / UART interface.

Product features

2.1 WiFi.1WiFi

• 802.11 b / g / n / e / i

• 802.11 n (2.4 GHz) at speeds up to 150 Mbps

• 802.11 e: QoS mechanism to implement wireless multimedia technology

• WMM-PS, UAPSD

• A-MPDU and A-MSDU frame aggregation techniques

• Block reply

• Fragmentation and reorganization

• Beacon automatic monitoring / scanning

• 802.11 i security features: pre-authentication and TSN

• Supports WPA / WPA2 / WPA2-Enterprise / WPS encryption

• Infrastructure BSS Station mode / SoftAP mode

• Wi-Fi Direct (P2P), P2P discovery, P2P GO mode, and P2P power management

• UMA compatible and certified

• Antenna diversity and selection

2.2 Bluetooth 2 Bluetooth

• Bluetooth v4.2 complete standard, including traditional Bluetooth (BR / EDR) and low power Bluetooth (BLE)

• Supports standard Class-1, Class-2 and Class-3, and eliminates the need for external power amplifiers

• Enhanced precision power control

• Output power up to + 10 dBm

• The NZIF receiver has BLE receive sensitivity of -98 dBm

• Adaptive Frequency Hopping (AFH)

• Standard HCI based on SDIO / SPI / UART interface

• High-speed UART HCI with speeds up to 4 Mbps

• Supports BT 4.2 controller and host protocol stack

• Service Discovery Protocol (SDP)

• Universal Access Application (GAP)

• Security Management Protocol (SMP)

• Low power Bluetooth

• ATT / GATT

• HID

• Supports all GATT-based low-power Bluetooth applications

• SPP-Like Low Power Bluetooth Data Transparency Protocol

• BLE Beacon

• A2DP / AVRCP / SPP, HSP / HFP, RFCOMM

• CVSD and SBC audio codec algorithms

• Bluetooth piconet and Scatternet

2.3 CPU and storage

• Xtensa® 32-bit LX6 dual-core processor with computing power up to 600 DMIPS

• 448 KByte ROM

• 520 KByte SRAM

• 16 KByte SRAM in RTC

• QSPI can connect up to 4 Flash / SRAMs, up to 16 MBytes per Flash

• Supply voltage: 2.2V to 3.6V

2.4 clock and timer

Built-in 8 MHz oscillator for self-calibration

• Built-in RC oscillator for self-calibration

• Supports external 2 MHz to 40 MHz crystal

• Supports external 32 kHz crystal for RTC, supports self-calibration

• 2 timer groups each consisting of 2 64-bit general-purpose timers and 1 master system watchdog

• RTC timers with sub-second precision

• RTC watchdog

2.5 Peripheral interface

• 12-bit SAR ADC with up to 18 channels

• 2 8-bit D / A converters

• 10 touch sensors

•Temperature Sensor

• 4 SPIs

• 2 I2S

• 2 I2C

• 3 UARTs

• 1 Host SD / eMMC / SDIO

• 1 Slave SDIO / SPI

• Ethernet MAC interface with dedicated DMA to support IEEE 1588

• CAN 2.0

• IR (TX / RX)

• Motor PWM

• LED PWM, up to 16 channels

•Hall sensor

• Ultra-low power preamplifier

Security mechanism .6 security mechanism

• Supports all IEEE 802.11 security features, including WFA, WPA / WPA2 and WAPI

• Safe start

• Flash encryption

• 1024-bit OTP, user-available up to 768 bits

Encrypted hardware accelerator:

• AES

• HASH (SHA-2) library

• RSA

• ECC

• random number generator (RNG)

Application

• Universal low power IoT sensor hub

• Universal low power IoT recorder

• Video streaming of the camera

• OTT TV box / set-top box device

• music player

- Network music player

- Audio streaming media device

• Wi-Fi toys

- Counter

- toys anti-lost device

• Wi-Fi speech recognition device

• Headset

• Smart socket

• Home automation

• Mesh network

• Industrial wireless control

• Baby monitor

• Wearable electronic products

• Wi-Fi location-aware devices

• Security ID tag

•  Healthcare

Motion monitoring and anti-lost alarm

Temperature recorder