ESP32-WROVER-B - D-I-U ESP-WROOM-32WiFi+Bluetooth Dual Core CPU LeXin Original
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- Product Code: GBL260110894447_01
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ESP32-WROOM-32WiFiThe module is independently designed and developed by Anxinke Technology, and its core processor isESP32-WROOM-32Provides a complete set of 802.11 b/g/n/e/i wireless local area network (WLAN) and Bluetooth 4.2 solutions with minimal physical size. This chip is designed specifically for low-power and mobile consumer electronics devices, wearable and IoT devices. It integrates all the functions of WLAN and Bluetooth on the chip, and has the characteristics of low cost and good layout.ESP32-WROOM-32At the same time, it provides an open platform that supports users to flexibly customize functions for different application scenarios.
ESP32-WROOM-32Function Block Diagram
ESP32-WROOM-32It is a WiFi and Bluetooth system on chip (SoC) with the advantages of RF performance, low power consumption, and high integration. ESP32-WROOM-32 integrates complete transmit/receive RF functionality, including antenna on/offOff, RF balunPower amplifier, low-noise amplifier, filter, power management module, and advanced self calibration circuit. The self calibration circuit achieves dynamic automatic adjustment to eliminate defects in external circuits.ESP32-WROOM-32withtwoathirty-twoPositionLX6 CPU,Main frequency up to240MHz, usingsevenHierarchical pipeline architecture.ESP32-WROOM-32It also integrates rich analog sensing and digital interfaces.
ESP32-WROOM-32The ultra-low power RF architecture and patented power-saving technology have extended the battery life of practical applications.
ESP32-WROOM-32Fully compliant with WiFi 802.11b/g/n/e/i and Bluetooth 4.2 standards, integrated with WiFi/Bluetooth/BLE RF and low-power technology, and supports an open real-time operating system RTOS. The adjustment cache integrated in ESP32-WROOM-32 helps improve system performance and optimize system storage. The flexible RAM/ROM partitioning architecture allows users to customize to meet special requirements and usage scenarios.
ESP32-WROOM-32Can be used as a standalone application or as a slave device for the host MCU. As a slave device, ESP32-WROOM-32 provides WiFi and Bluetooth functionality through SPI/SDIO or I2C/UART interfaces.
twoProduct Features
2.1 WiFi.1WiFi
•802.11 b/g/n/e/i
•802.11 n（2.4 GHz）, with a speed of up to150 Mbps
•802.11 e：QoSMechanism implementation of wireless multimedia technology
•WMM-PS, UAPSD
•A-MPDUandA-MSDUFrame aggregation technology
•Block reply
•Sharding and restructuring
•BeaconAutomatic monitoring/scanning
•802.11 iSecurity features: pre authentication andTSN
•supportWPA／WPA2／WPA2-Enterprise／WPSencryption
•Infrastructure based network（Infrastructure BSS）StationMode/SoftAPpattern
•Wi-Fi Direct（P2P）TheP2PdiscoverP2P GOMode andP2Ppower management
•UMACompatibility and authentication
•Antenna Diversity and Selection
two point twoBluetoothtwoBluetooth
•Bluetoothv4.2Complete standard, including traditional Bluetooth（BR/EDR）And low-power Bluetooth（BLE）
•support standardClass-1、Class-2andClass-3And no external power amplifier is required
•Enhanced precision power control
•Output power up to+10dBm
•NZIFThe receiver has-98dBmofBLEReceiving sensitivity
•Adaptive frequency hopping（AFH）
•based onSDIO／SPI／UARTInterface standardsHCI
•Speed up to4MbpsThe highwayUARTHCI
•supportBT4.2controllerandhostprotocol stack
•Service Discovery Protocol（SDP）
•Universal Access Application（GAP）
•Security Management Agreement（SMP）
•Bluetooth Low Energy
•ATT／GATT
•HID
•Can support all based onGATTLow power Bluetooth applications
•SPP-LikeLow power Bluetooth data transmission protocol
•BLEBeacon
•A2DP／AVRCP／SPP,HSP／HFP,RFCOMM
•CVSDandSBCAudio Encoding and Decoding Algorithm
•Bluetooth Micro Network（Piconet）And scattering net（Scatternet）
2.3 CPUAnd storage
• Xtensa ® 32-bit LX6Dual core processor with high computing power600 DMIPS
• 448 KByte ROM
• 520 KByte SRAM
• RTCChinese16 KByte SRAM
• QSPICan connect at mostfouraFlash／SRAMEach oneFlashMaxfor16 MBytes
•Supply voltage:2.2Vto3.6V
two point fourClock and Timer
•built-in8 MHzOscillators, supporting self calibration
•built-inRCOscillators, supporting self calibration
•Support external connection2 MHzto40 MHzCrystal oscillator
•Support external connection32 kHzCrystal oscillator, used forRTC, supports self calibration
• 2A timer group, each group includingtwoa64-bitUniversal Timer andoneA main system watchdog
•With sub second level accuracyRTCtimer
• RTCwatchdog
two point fiveperipheral interface
• 12-bit SAR ADCUp toeighteenA channel
• 2a8-bit D/Aconverter
• 10A touch sensor
•temperature sensor
• 4aSPI
• 2aI2S
• 2aI2C
• 3aUART
• 1aHost SD／eMMC／SDIO
• 1aSlave SDIO／SPI
•With dedicatedDMAThe EthernetMACInterface, supportsIEEE 1588
• CAN 2.0
• IR（TX／RX）
•motorPWM
• LED PWMUp tosixteenA channel
•Hall sensor
•Ultra low power pre analog amplifier
two point sixsafety mechanism.6safety mechanism
•Support allIEEE 802.11The security features includeWFA、WPA／WPA2andWAPI
•Safe startup
• Flashencryption
• 1024-bit OTPUsers can access up to768 bits
•Encryption hardware accelerator:
– AES
– HASH（SHA-2）Library
– RSA
– ECC
–Random number generator（RNG）
two point sevenapplication
•Universal low power consumptionIoTsensorHub
•Universal low power consumptionIoTrecorder
•Video streaming transmission of cameras
• OTTTV box/set-top box equipment
•music player
–Network music player
–Audio streaming devices
• Wi-Fitoy
–counter
–Toy anti loss device
• Wi-FiSpeech recognition device
•headset
•smart socket
•Home automation
• Meshnetwork
•Industrial wireless control
•baby monitor
•Wearable Electronics
• Wi-FiLocation aware devices
•safetyIDlabel
•healthcare
–Sports monitoring and anti loss alarm
–Temperature Recorder
three、ESP32-WROOM-32Main parameters of the module
three point oneparameter table
category | parameter | Instructions |
wireless parameters | Standard Certification | FCC/CE/TELEC |
wireless standard | 802.11 b/g/n/e/i Bluetooth 4.2 (BR/ADR/BLE) | |
frequency range | 2.4GHz-2.5GHz (2400M-2483.5M) | |
Hardware specifications | data interface | UART/SPI/I2C/I2S/IR/CAN |
GPIO/PWM | ||
Working Voltage | 3.0~3.6V | |
operating current | Average value: 90mA | |
Operating Temperature | -40°~125° | |
Storage temperature | room temperature | |
Package size | 18mm*25.50mm*3mm | |
external interface | N/A | |
software parameters | Wireless network mode | station/softAP/SoftAP+station |
safety mechanism | WFA、 WPA/WPA2,WAPI | |
encryption type | WEP/TKIP/AES | |
Upgrade firmware | Local serial port burning/cloud upgrade/host download burning | |
software development | Support customers to customize servers Provide SDK to customers for secondary development | |
network protocol | IPv4, TCP/UDP/HTTP/FTP | |
User Configuration | AT+Instruction set, cloud server, Android/iOS APP
|
three point twoInterface Definition
ESP32-WROOM-32Definition of Pin Function
| name | serial number | function |
| GND | one | grounding |
| 3V3 | two | power supply |
| EN | three | Enable chip, high level effective. |
| SENSOR_VP | four | GPI36, SENSOR_VP, ADC_H, ADC1_CH0, RTC_GPIO0 |
| SENSOR_VN | five | GPI39, SENSOR_VN, ADC1_CH3, ADC_H, RTC_GPIO3 |
| IO34 | six | GPI34, ADC1_CH6, RTC_GPIO4 |
| IO35 | seven | GPI35, ADC1_CH7, RTC_GPIO5 |
| IO32 | eight | GPIO32, XTAL_32K_P (32.768 kHz crystal oscillator input), ADC1_CH4, TOUCH9, RTC_GPIO9 |
| IO33 | nine | GPIO33, XTAL_32K_N (32.768 kHz crystal oscillator output), ADC1_CH5, TOUCH8, RTC_GPIO8 |
| IO25 | ten | GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0 |
| IO26 | eleven | GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1 |
| IO27 | twelve | GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV |
| IO14 | thirteen | GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK, EMAC_TXD2 |
| IO12 | fourteen | GPIO12, ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI, HSPIQ, HS2_DATA2, SD_DATA2, EMAC_TXD3 |
| GND | fifteen | grounding |
| IO13 | sixteen | GPIO13, ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3, EMAC_RX_ER |
| SHD/SD2 | seventeen | GPIO9, SD_DATA2, SPIHD, HS1_DATA2, U1RXD |
| SWP/SD3 | eighteen | GPIO10, SD_DATA3, SPIWP, HS1_DATA3, U1TXD |
| SCS/CMD | nineteen | GPIO11, SD_CMD, SPICS0, HS1_CMD, U1RTS |
| SCK/CLK | twenty | GPIO6, SD_CLK, SPICLK, HS1_CLK, U1CTS |
| SDO/SD0 | twenty-one | GPIO7, SD_DATA0, SPIQ, HS1_DATA0, U2RTS |
| SDI/SD1 | twenty-two | GPIO8, SD_DATA1, SPID, HS1_DATA1, U2CTS |
| IO15 | twenty-three | GPIO15, ADC2_CH3, TOUCH3, MTDO, HSPICS0, RTC_GPIO13, HS2_CMD, SD_CMD, EMAC_RXD3 |
| IO2 | twenty-four | GPIO2, ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0, SD_DATA0 |
| IO0 | twenty-five | GPIO0, ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1, EMAC_TX_CLK |
| IO4 | twenty-six | GPIO4, ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1, EMAC_TX_ER |
| IO16 | twenty-seven | GPIO16, HS1_DATA4, U2RXD, EMAC_CLK_OUT |
| IO17 | twenty-eight | GPIO17, HS1_DATA5, U2TXD, EMAC_CLK_OUT_180 |
| IO5 | twenty-nine | GPIO5, VSPICS0, HS1_DATA6, EMAC_RX_CLK |
| IO18 | thirty | GPIO18, VSPICLK, HS1_DATA7 |
| IO19 | thirty-one | GPIO19, VSPIQ, U0CTS, EMAC_TXD0 |
| NC | thirty-two | - |
| IO21 | thirty-three | GPIO21, VSPIHD, EMAC_TX_EN |
| RXD0 | thirty-four | GPIO3, U0RXD, CLK_OUT2 |
| TXD0 | thirty-five | GPIO1, U0TXD, CLK_OUT3, EMAC_RXD2 |
| IO22 | thirty-six | GPIO22, VSPIWP, U0RTS, EMAC_TXD1 |
| IO23 | thirty-seven | GPIO23, VSPID, HS1_STROBE |
| GND | thirty-eight | grounding |
ESP32-WROOM-32Startup mode configuration
pin
|
default |
SPIstartup mode |
Download Startup Mode |
GPIO0
|
pull-up |
one |
0 |
GPIO2
|
pull down |
Unrelated items |
0 |
three point threeAppearance and size
ESP32-WROOM-32The external dimensions of the module are18mm*25.50mm*（2.8 ± 0.1）mm(As shown in the figure)The module uses SPI Flash with a capacity of 4MB and packaged as WSOP-8. The module uses a 3DBi PCB board mounted antenna.
ESP32-WROOM-32Minimum System Circuit
