$14.97
$24.85
Description The ESP32-WROOM-32 WiFi module is independently designed and developed by Espressif Systems. The core processor of this module, the ESP32-WROOM-32, provides a complete 802.11 b/g/n/e/i Wireless Local Area Network (WLAN) and Bluetooth 4.2 solution in a small physical form factor. This chip is specifically designed for low-power and mobile consumer electronics, wearables, and IoT devices. It integrates all WLAN and Bluetooth functionalities on-chip, featuring low cost and efficient layout. The ESP32-WROOM-32 also offers an open platform that supports flexible customization of functions for various application scenarios. ESP32-WROOM-32 Block Diagram The ESP32-WROOM-32 is a WiFi and Bluetooth system-on-chip (SoC) with industry-leading RF performance, low power consumption, and high integration. It integrates complete transmit/receive RF functions, including antenna switch, RF balun, power amplifier, low-noise amplifier, filters, power management module, and advanced self-calibration circuitry. The self-calibration circuitry enables dynamic automatic adjustment to eliminate defects in external circuits. The ESP32-WROOM-32 features two 32-bit LX6 CPUs with a main frequency of up to 240 MHz, adopting a 7-stage pipeline architecture. It also integrates a rich set of analog sensors and digital interfaces. The ultra-low-power RF architecture and patented power-saving technologies of the ESP32-WROOM-32 extend battery life in practical applications. The ESP32-WROOM-32 fully complies with WiFi 802.11 b/g/n/e/i and Bluetooth 4.2 standards, integrating WiFi/Bluetooth/BLE RF and low-power technologies, and supports an open Real-Time Operating System (RTOS). The integrated adjustment cache of the ESP32-WROOM-32 helps improve system performance and optimize system storage. The flexible RAM/ROM partitioning architecture allows users to customize it to meet specific requirements and use cases. The ESP32-WROOM-32 can operate as a standalone application or as a slave device to a host MCU. As a slave device, the ESP32-WROOM-32 provides WiFi and Bluetooth functionalities through SPI/SDIO or I2C/UART interfaces. Product Features 2.1 WiFi 802.11 b/g/n/e/i 802.11 n (2.4 GHz) with speeds up to 150 Mbps 802.11 e: QoS mechanisms for wireless multimedia technology WMM-PS, UAPSD A-MPDU and A-MSDU frame aggregation Block ACK Fragmentation and reassembly Automatic beacon 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 Bluetooth v4.2 full standard, including classic Bluetooth (BR/EDR) and Bluetooth Low Energy (BLE) Supports standard Class-1, Class-2, and Class-3 without the need for an external power amplifier Enhanced power control Output power up to 10 dBm NZIF receiver with BLE receive sensitivity of -98 dBm Adaptive Frequency Hopping (AFH) Standard HCI based on SDIO/SPI/UART interfaces High-speed UART HCI with speeds up to 4 Mbps Supports BT4.2 controller and host protocol stack Service Discovery Protocol (SDP) Generic Access Profile (GAP) Security Manager Protocol (SMP) Bluetooth Low Energy ATT/GATT HID Supports all GATT-based BLE applications SPP-Like BLE data transparent transmission protocol BLE Beacon A2DP/AVRCP/SPP, HSP/HFP, RFCOMM CVSD and SBC audio codec algorithms Bluetooth piconet and scatternet 2.3 CPU and Memory 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 supporting up to 4 Flash/SRAM connections, each Flash Max 16 MBytes Supply voltage: 2.2V to 3.6V 2.4 Clocks and Timers Built-in 8 MHz oscillator with self-calibration support Built-in RC oscillator with self-calibration support Supports external crystals from 2 MHz to 40 MHz Supports external 32 kHz crystal for RTC with self-calibration 2 timer groups, each including 2 64-bit general-purpose timers and 1 main system watchdog RTC timer with sub-second accuracy RTC watchdog 2.5 Peripheral Interfaces 12-bit SAR ADC with up to 18 channels 2 8-bit D/A converters 10 touch sensors Temperature sensor 4 SPI interfaces 2 I2S interfaces 2 I2C interfaces 3 UART interfaces 1 Host SD/eMMC/SDIO interface 1 Slave SDIO/SPI interface Ethernet MAC interface with dedicated DMA, supporting IEEE 1588 CAN 2.0 IR (TX/RX) Motor PWM LED PWM with up to 16 channels Hall sensor Ultra-low-power pre-amplifier for analog signals 2.6 Security Mechanisms Supports all IEEE 802.11 security features, including WFA, WPA/WPA2, and WAPI Secure boot Flash encryption 1024-bit OTP, with up to 768 bits available for user use Cryptographic hardware accelerator: AES HASH (SHA-2) library RSA ECC Random Number Generator (RNG) 2.7 Applications General low-power IoT sensor hub General low-power IoT logger Video streaming transmission for cameras OTT TV boxes/set-top box devices Music players Network music players Audio streaming devices Wi-Fi toys Counters Toy anti-loss devices Wi-Fi voice recognition devices Headsets Smart outlets Home automation Mesh networks Industrial wireless control Baby monitors Wearable electronics Wi-Fi location-aware devices Secure ID tags Health and medical applications Motion monitoring and anti-loss alarms Temperature loggers Product Basic Parameters: Category Parameter Description Wireless Parameters Standards Certification FCC/CE/TELEC Wireless Standards 802.11 b/g/n/e/i Bluetooth 4.2 (BR/EDR/BLE) Frequency Range 2.4GHz-2.5GHz (2400M-2483.5M) Hardware Parameters Data Interfaces UART/SPI/I2C/I2S/IR/CAN GPIO/PWM Operating Voltage 3.0~3.6V Operating Current Average: 90mA Operating Temperature -40°~125° Storage Temperature Room temperature Package Size 18mm*25.50mm*3mm External Interface N/A Software Parameters Wireless Network Modes Station/SoftAP/SoftAP Station Security Mechanisms WFA、WPA/WPA2,WAPI Encryption Types WEP/TKIP/AES Firmware Upgrade Local serial port burning / Cloud upgrade / Host download and burning Software Development Supports customer-defined servers Provides SDK for customer secondary development Network Protocols IPv4, TCP/UDP/HTTP/FTP User Configuration AT command set, cloud server, Android/iOS APP Interface Definition: Pin Function Definition of ESP32-WROOM-32 Name Pin Number Function GND 1 Ground 3V3 2 Power supply EN 3 Chip enable,active high SENSOR_VP 4 GPI36, SENSOR_VP, ADC_H, ADC1_CH0, RTC_GPIO0 SENSOR_VN 5 GPI39, SENSOR_VN, ADC1_CH3, ADC_H, RTC_GPIO3 IO34 6 GPI34, ADC1_CH6, RTC_GPIO4 IO35 7 GPI35, ADC1_CH7, RTC_GPIO5 IO32 8 GPIO32, XTAL_32K_P (32.768 kHz crystal oscillator input), ADC1_CH4, TOUCH9, RTC_GPIO9 IO33 9 GPIO33, XTAL_32K_N (32.768 kHz crystal oscillator output), ADC1_CH5, TOUCH8, RTC_GPIO8 IO25 10 GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0 IO26 11 GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1 IO27 12 GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV IO14 13 GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK, EMAC_TXD2 IO12 14 GPIO12, ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI, HSPIQ, HS2_DATA2, SD_DATA2, EMAC_TXD3 GND 15 接地 IO13 16 GPIO13, ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3, EMAC_RX_ER SHD/SD2 17 GPIO9, SD_DATA2, SPIHD, HS1_DATA2, U1RXD SWP/SD3 18 GPIO10, SD_DATA3, SPIWP, HS1_DATA3, U1TXD SCS/CMD 19 GPIO11, SD_CMD, SPICS0, HS1_CMD, U1RTS SCK/CLK 20 GPIO6, SD_CLK, SPICLK, HS1_CLK, U1CTS SDO/SD0 21 GPIO7, SD_DATA0, SPIQ, HS1_DATA0, U2RTS SDI/SD1 22 GPIO8, SD_DATA1, SPID, HS1_DATA1, U2CTS IO15 23 GPIO15, ADC2_CH3, TOUCH3, MTDO, HSPICS0, RTC_GPIO13, HS2_CMD, SD_CMD, EMAC_RXD3 IO2 24 GPIO2, ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0, SD_DATA0 IO0 25 GPIO0, ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1, EMAC_TX_CLK IO4 26 GPIO4, ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1, EMAC_TX_ER IO16 27 GPIO16, HS1_DATA4, U2RXD, EMAC_CLK_OUT IO17 28 GPIO17, HS1_DATA5, U2TXD, EMAC_CLK_OUT_180 IO5 29 GPIO5, VSPICS0, HS1_DATA6, EMAC_RX_CLK IO18 30 GPIO18, VSPICLK, HS1_DATA7 IO19 31 GPIO19, VSPIQ, U0CTS, EMAC_TXD0 NC 32 – IO21 33 GPIO21, VSPIHD, EMAC_TX_EN RXD0 34 GPIO3, U0RXD, CLK_OUT2 TXD0 35 GPIO1, U0TXD, CLK_OUT3, EMAC_RXD2 IO22 36 GPIO22, VSPIWP, U0RTS, EMAC_TXD1 IO23 37 GPIO23, VSPID, HS1_STROBE GND 38 Ground ESP32-WROOM-32 Boot Mode Configuration Pin Default SPI Boot Mode Download Boot Mode GPIO0 Pull-up 1 0 GPIO2 Pull-down N/A 0 Appearance and Dimensions The appearance dimensions of the ESP32-WROOM-32 module are 18mm25.50mm(2.8 ± 0.1)mm (as shown in the figure). The module uses 4MB of SPI Flash in a WSOP-8 package. The module is equipped with a 3dBi PCB on-board antenna.
Wifi And Bluetooth Module
