ESP32-WROVER-B/ESP32-WROVER-IB Datasheet Version 1.0 Espressif Systems About This Guide This document provides the specifications for the ESP32-WROVER-B/ESP32-WROVER-IB modules. Revision History For the revision history of this document, please refer to the last page. Documentation Change Notification Espressif provides email notifications to keep customers updated on changes to technical documentation. Please subscribe here. Certification Download certificates for Espressif products from here. Disclaimer and Copyright Notice Information in this document, including URL references, is subject to change without notice. THIS DOCUMENT IS PROVIDED AS IS WITH NO WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABIL-
ITY, NON-INFRINGEMENT, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. All liability, including liability for infringement of any proprietary rights, relating to use of information in this docu-
ment is disclaimed. No licenses express or implied, by estoppel or otherwise, to any intellectual property rights are granted herein. The Wi-Fi Alliance Member logo is a trademark of the Wi-Fi Alliance. The Bluetooth logo is a registered trademark of Bluetooth SIG. All trade names, trademarks and registered trademarks mentioned in this document are property of their respective owners, and are hereby acknowledged. Copyright 2018 Espressif Inc. All rights reserved. Contents 1 Overview 2 Pin Definitions 2.1 Pin Layout 2.2 Pin Description 2.3 Strapping Pins 3 Functional Description 3.1 CPU and Internal Memory 3.2 External Flash and SRAM 3.3 Crystal Oscillators 3.4 RTC and Low-Power Management 4 Peripherals and Sensors 5 Electrical Characteristics 5.1 Absolute Maximum Ratings 5.2 Recommended Operating Conditions 5.3 DC Characteristics (3.3V, 25C) 5.4 Wi-Fi Radio 5.5 BLE Radio 5.5.1 Receiver 5.5.2 Transmitter 6 Dimensions 7 U.FL Connector Dimensions 8 Learning Resources 8.1 Must-Read Documents 8.2 Must-Have Resources Revision History 1 3 3 4 5 7 7 7 7 8 9 10 10 10 10 11 11 11 12 13 14 15 15 15 16 List of Tables ESP32-WROVER-B/ESP32-WROVER-IB vs. ESP32-WROVER/ESP32-WROVER-I ESP32-WROVER-B/ESP32-WROVER-IB Specifications Pin Definitions Strapping Pins Power Consumption by Power Modes Absolute Maximum Ratings Recommended Operating Conditions DC Characteristics 1 2 3 4 5 6 7 8 9 Wi-Fi Radio Characteristics 10 Receiver Characteristics BLE 11 Transmitter Characteristics BLE 1 2 4 5 8 10 10 10 11 11 12 List of Figures 1 2 3 4 5 6 ESP32-WROVER-B/ESP32-WROVER-IB Pin Layout ESP32-WROVER-B/ESP32-WROVER-IB Schematics ESP32-WROVER-B/ESP32-WROVER-IB Peripheral Schematics ESP32-WROVER-B Dimensions ESP32-WROVER-IB Dimensions ESP32-WROVER-B/ESP32-WROVER-IB U.FL Connector Dimensions 3 13 14 15 15 16 1. OVERVIEW 1. Overview ESP32-WROVER-B is a powerful, generic WiFi-BT-BLE MCU module that targets a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding. At the core of this module is the ESP32-D0WD chip*. ESP32-WROVER-B has an additional SPI Pseudo static RAM (PSRAM) of 64 Mbits. As such, ESP32-WROVER-B features both 4 MB external SPI flash and 8 MB external PSRAM. The ESP32-WROVER-B module has a PCB antenna, while the ESP32-WROVER-IB uses an IPEX antenna. For dimentions of the IPEX connector, please see Chapter 9. The information in this datasheet is applicable to both of the two modules. Table 1: ESP32-WROVER-B/ESP32-WROVER-IB Chip embedded Module ESP32-D0WD ESP32-WROVER-B ESP32-WROVER-IB ESP32-D0WD Flash 4 MB 4 MB PSRAM Antenna 8 MB 8 MB PCB antenna IPEX antenna Dimensions (mm)
(180.15)x(31.40.2)x(3.50.15)
(180.15)x(31.40.2)x(3.50.15) The chip embedded is designed to be scalable and adaptive. There are two CPU cores that can be individually controlled, and the CPU clock frequency is 240 MHz. The user may also power off the CPU and make use of the low-power co-processor to constantly monitor the peripherals for changes or crossing of thresholds. ESP32 integrates a rich set of peripherals, ranging from capacitive touch sensors, Hall sensors, SD card interface, Ethernet, high-speed SPI, UART, I2S and I2C. Note:
* For details on the part number of the ESP32 series, please refer to the document ESP32 Datasheet. The integration of Bluetooth, Bluetooth LE and Wi-Fi ensures that a wide range of applications can be targeted, and that the module is future proof: using Wi-Fi allows a large physical range and direct connection to the internet through a Wi-Fi router, while using Bluetooth allows the user to conveniently connect to the phone or broadcast low energy beacons for its detection. The sleep current of the ESP32 chip is less than 5 A, making it suitable for battery powered and wearable electronics applications. ESP32 supports a data rate of up to 150 Mbps, and 20.5 dBm output power at the antenna to ensure the widest physical range. As such the chip does offer industry-leading specifications and the best performance for electronic integration, range, power consumption, and connectivity. The operating system chosen for ESP32 is freeRTOS with LwIP; TLS 1.2 with hardware acceleration is built in as well. Secure (encrypted) over the air (OTA) upgrade is also supported, so that developers can continually upgrade their products even after their release. Table 2 provides the specifications of ESP32-WROVER-B/ESP32-WROVER-IB. Espressif Systems 1 ESP32-WROVER-B Datasheet V1.0 1. OVERVIEW Table 2: ESP32-WROVER-B/ESP32-WROVER-IB Specifications Categories Items Wi-Fi Protocols Frequency range Protocols Bluetooth Radio Hardware Audio Module interface On-chip sensor On-board clock Operating voltage/Power supply Operating current Minimum current delivered by power supply Recommended operating tem-
perature range Package size Wi-Fi mode Security Encryption Software Firmware upgrade Software development Network protocols User configuration Specifications 802.11 b/g/n20/n40 A-MPDU and A-MSDU aggregation and 0.4 s guard in-
terval support 2412-2462MHz(802.11b/g/n-HT20),2422-2452MHz(802.11n-HT40) Bluetooth v4.2 BR/EDR and BLE specification NZIF receiver with 97 dBm sensitivity Class-1, class-2 and class-3 transmitter AFH CVSD and SBC SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR GPIO, capacitive touch sensor, ADC, DAC Hall sensor 40 MHz crystal 2.7 ~ 3.6V Average: 80 mA 500 mA 40C ~ 85C
(180.15) mm x (31.40.2) mm x (3.50.15) mm Station/SoftAP/SoftAP+Station/P2P WPA/WPA2/WPA2-Enterprise/WPS AES/RSA/ECC/SHA UART Download / OTA (via network) / download and write firmware via host Supports Cloud Server Development / SDK for custom firmware development IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT AT instruction set, cloud server, Android/iOS app Espressif Systems 2 ESP32-WROVER-B Datasheet V1.0 2. PIN DEFINITIONS 2. Pin Definitions 2.1 Pin Layout Keepout Zone 39:GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 GND VDD33 EN SENSOR_VP SENSOR_VN IO34 IO35 IO32 IO33 IO25 IO26 IO27 IO14 IO12 GND IO13 SD2 SD3 CMD GND IO23 IO22 TXD0 RXD0 IO21 NC IO19 IO18 IO5 NC NC IO4 IO0 IO2 IO15 SD1 SD0 CLK 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 Figure 1: ESP32-WROVER-B/ESP32-WROVER-IB Pin Layout Espressif Systems 3 ESP32-WROVER-B Datasheet V1.0 2. PIN DEFINITIONS 2.2 Pin Description ESP32-WROVER-B/ESP32-WROVER-IB has 38 pins. See pin definitions in Table 3. Table 3: Pin Definitions No. Name 1 GND 2 3V3 EN 3 SENSOR_VP 4 SENSOR_VN 5 IO34 6 7 IO35 Type P P I I I I I IO32 IO33 IO25 IO26 IO27 IO14 IO12 GND IO13 SHD/SD2*
SWP/SD3*
SCS/CMD*
SCK/CLK*
SDO/SD0*
SDI/SD1*
IO15 IO2 IO0 IO4 NC1 NC2 IO5 IO18 IO19 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 I/O I/O I/O I/O I/O I/O I/O P I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O
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I/O I/O I/O TOUCH5, RTC_GPIO15, MTDI, HSPIQ, Function Ground Power supply. Chip-enable signal. Active high. GPIO36, ADC_H, ADC1_CH0, RTC_GPIO0 GPIO39, ADC1_CH3, ADC_H, RTC_GPIO3 GPIO34, ADC1_CH6, RTC_GPIO4 GPIO35, ADC1_CH7, RTC_GPIO5 GPIO32, XTAL_32K_P (32.768 kHz crystal oscillator input), ADC1_CH4, TOUCH9, RTC_GPIO9 GPIO33, XTAL_32K_N (32.768 kHz crystal oscillator output), ADC1_CH5, TOUCH8, RTC_GPIO8 GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0 GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1 GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK, EMAC_TXD2 GPIO12, ADC2_CH5, HS2_DATA2, SD_DATA2, EMAC_TXD3 Ground GPIO13, ADC2_CH4, HS2_DATA3, SD_DATA3, EMAC_RX_ER GPIO9, SD_DATA2, SPIHD, HS1_DATA2, U1RXD GPIO10, SD_DATA3, SPIWP, HS1_DATA3, U1TXD GPIO11, SD_CMD, SPICS0, HS1_CMD, U1RTS GPIO6, SD_CLK, SPICLK, HS1_CLK, U1CTS GPIO7, SD_DATA0, SPIQ, HS1_DATA0, U2RTS GPIO8, SD_DATA1, SPID, HS1_DATA1, U2CTS GPIO15, ADC2_CH3, TOUCH3, MTDO, HSPICS0, RTC_GPIO13, HS2_CMD, SD_CMD, EMAC_RXD3 GPIO2, ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0, SD_DATA0 GPIO0, EMAC_TX_CLK GPIO4, ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1, EMAC_TX_ER
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GPIO5, VSPICS0, HS1_DATA6, EMAC_RX_CLK GPIO18, VSPICLK, HS1_DATA7 GPIO19, VSPIQ, U0CTS, EMAC_TXD0 TOUCH4, RTC_GPIO14, MTCK, HSPID, RTC_GPIO11, ADC2_CH1, CLK_OUT1, TOUCH1, Espressif Systems 4 ESP32-WROVER-B Datasheet V1.0 2. PIN DEFINITIONS Name NC IO21 RXD0 TXD0 IO22 IO23 GND No. 32 33 34 35 36 37 38 Type
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I/O I/O I/O I/O I/O P Function
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GPIO21, VSPIHD, EMAC_TX_EN GPIO3, U0RXD, CLK_OUT2 GPIO1, U0TXD, CLK_OUT3, EMAC_RXD2 GPIO22, VSPIWP, U0RTS, EMAC_TXD1 GPIO23, VSPID, HS1_STROBE Ground 2.3 Strapping Pins ESP32 has five strapping pins, which can be seen in Chapter 6 Schematics:
MTDI GPIO0 GPIO2 MTDO GPIO5 Software can read the values of these five bits from register GPIO_STRAPPING. During the chips system reset (power-on-reset, RTC watchdog reset and brownout reset), the latches of the strapping pins sample the voltage level as strapping bits of 0 or 1, and hold these bits until the chip is powered down or shut down. The strapping bits configure the devices boot mode, the operating voltage of VDD_SDIO and other initial system settings. Each strapping pin is connected to its internal pull-up/pull-down during the chip reset. Consequently, if a strapping pin is unconnected or the connected external circuit is high-impedance, the internal weak pull-up/pull-down will determine the default input level of the strapping pins. To change the strapping bit values, users can apply the external pull-down/pull-up resistances, or use the host MCUs GPIOs to control the voltage level of these pins when powering on ESP32. After reset, the strapping pins work as normal-function pins. Refer to Table 4 for a detailed boot-mode configuration by strapping pins. Table 4: Strapping Pins Voltage of Internal LDO (VDD_SDIO) 3.3V 0 Booting Mode SPI Boot 1 Dont-care 1.8V 1 Download Boot 0 0 Enabling/Disabling Debugging Log Print over U0TXD During Booting U0TXD Toggling 1 U0TXD Silent 0 Pin MTDI Default Pull-down Pin GPIO0 GPIO2 Default Pull-up Pull-down Pin MTDO Default Pull-up Espressif Systems 5 ESP32-WROVER-B Datasheet V1.0 2. PIN DEFINITIONS Pin MTDO GPIO5 Default Pull-up Pull-up Note:
Falling-edge Input Falling-edge Output 0 0 Timing of SDIO Slave Falling-edge Input Rising-edge Output 0 1 Rising-edge Input Falling-edge Output 1 0 Rising-edge Input Rising-edge Output 1 1 Firmware can configure register bits to change the settings of Voltage of Internal LDO (VDD_SDIO) and Timing of SDIO Slave after booting. Internal pull-up resistor for MTDI is not populated in the module, as the flash and SRAM in ESP32-WROVER-
B/ESP32-WROVER-IB only support a power voltage of 3.3V (output by VDD_SDIO). Espressif Systems 6 ESP32-WROVER-B Datasheet V1.0 3. FUNCTIONAL DESCRIPTION 3. Functional Description This chapter describes the modules and functions integrated in ESP32-WROVER-B/ESP32-WROVER-IB. 3.1 CPU and Internal Memory ESP32-D0WD contains two low-power Xtensa 32-bit LX6 microprocessors. The internal memory includes:
448 kB of ROM for booting and core functions. 520 kB of on-chip SRAM for data and instructions. 8 kB of SRAM in RTC, which is called RTC FAST Memory and can be used for data storage; it is accessed by the main CPU during RTC Boot from the Deep-sleep mode. 8 kB of SRAM in RTC, which is called RTC SLOW Memory and can be accessed by the co-processor during the Deep-sleep mode. 1 kbit of eFuse: 256 bits are used for the system (MAC address and chip configuration) and the remaining 768 bits are reserved for customer applications, including Flash-Encryption and Chip-ID. 3.2 External Flash and SRAM ESP32 supports multiple external QSPI flash and SRAM chips. More details can be found in Chapter SPI in the ESP32 Technical Reference Manual. ESP32 also supports hardware encryption/decryption based on AES to pro-
tect developers programs and data in flash. ESP32 can access the external QSPI flash and SRAM through high-speed caches. Up to 16 MB of external flash can be mapped into CPU instruction memory space and read-only memory space simultaneously. When external flash is mapped into CPU instruction memory space, up to 11 MB+248 KB can be mapped at a time. Note that if more than 3 MB+248 KB are mapped, cache performance will be reduced due to speculative reads by the CPU. When external flash is mapped into read-only data memory space, up to 4 MB can be mapped at a time. 8-bit, 16-bit and 32-bit reads are supported. External SRAM can be mapped into CPU data memory space. SRAM up to 8 MB is supported and up to 4 MB can be mapped at a time. 8-bit, 16-bit and 32-bit reads and writes are supported. ESP32-WROVER-B/ESP32-WROVER-IB integrates 4 MB of external SPI flash. The 4-MB SPI flash can be memory-
mapped onto the CPU code space, supporting 8, 16 and 32-bit access. Code execution is supported. In addition to the 4 MB SPI flash, ESP32-WROVER-B/ESP32-WROVER-IB also integrates 8 MB PSRAM for more memory space. 3.3 Crystal Oscillators The module uses a 40-MHz crystal oscillator. Espressif Systems 7 ESP32-WROVER-B Datasheet V1.0 3. FUNCTIONAL DESCRIPTION 3.4 RTC and Low-Power Management With the use of advanced power-management technologies, ESP32 can switch between different power modes. Power modes Active mode: The chip radio is powered on. The chip can receive, transmit, or listen. Modem-sleep mode: The CPU is operational and the clock is configurable. The Wi-Fi/Bluetooth base-
band and radio are disabled. Light-sleep mode: The CPU is paused. The RTC memory and RTC peripherals, as well as the ULP co-processor are running. Any wake-up events (MAC, host, RTC timer, or external interrupts) will wake up the chip. Deep-sleep mode: Only RTC memory and RTC peripherals are powered on. Wi-Fi and Bluetooth connection data are stored in the RTC memory. The ULP co-processor is functional. Hibernation mode: The internal 8-MHz oscillator and ULP co-processor are disabled. The RTC recovery memory is powered down. Only one RTC timer on the slow clock and certain RTC GPIOs are active. The RTC timer or the RTC GPIOs can wake up the chip from the Hibernation mode. The power consumption varies with different power modes and work statuses of functional modules. Please see Table 5 for details. Table 5: Power Consumption by Power Modes Power mode Active (RF working) Description Wi-Fi Tx packet Wi-Fi / BT Tx packet Wi-Fi / BT Rx and listening Modem-sleep The CPU is powered on.
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The ULP co-processor is powered on. ULP sensor-monitored pattern RTC timer + RTC memory RTC timer only CHIP_PU is set to low level, the chip is powered off Light-sleep Deep-sleep Hibernation Power off Note:
Power consumption Please refer to ESP32 Datasheet. Max speed 240 MHz: 30 mA ~ 50 mA Normal speed 80 MHz: 20 mA ~ 25 mA Slow speed 2 MHz: 2 mA ~ 4 mA 0.8 mA 150 A 100 A @1% duty 10 A 5 A 0.1 A When Wi-Fi is enabled, the chip switches between Active and Modem-sleep mode. Therefore, power consumption changes accordingly. In Modem-sleep mode, the CPU frequency changes automatically. The frequency depends on the CPU load and the peripherals used. During Deep-sleep, when the ULP co-processor is powered on, peripherals such as GPIO and I2C are able to operate. When the system works in the ULP sensor-monitored pattern, the ULP co-processor works with the ULP sensor periodically; ADC works with a duty cycle of 1%, so the power consumption is 100 A. Espressif Systems 8 ESP32-WROVER-B Datasheet V1.0 4. PERIPHERALS AND SENSORS 4. Peripherals and Sensors Please refer to Section 4 Peripherals and Sensors in ESP32 Datasheet. Note:
External connections can be made to any GPIO except for GPIOs in the range 6-11, 16, or 17. GPIOs 6-11 are connected to the modules integrated SPI flash and PSRAM. GPIOs 16 and 17 are connected to the modules integrated PSRAM. For details, please see Section 6 Schematics. Espressif Systems 9 ESP32-WROVER-B Datasheet V1.0 5. ELECTRICAL CHARACTERISTICS 5. Electrical Characteristics 5.1 Absolute Maximum Ratings Stresses beyond the absolute maximum ratings listed in the table below may cause permanent damage to the device. These are stress ratings only, and do not refer to the functional operation of the device. Table 6: Absolute Maximum Ratings Symbol VDD33 Tstore Parameter
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Storage temperature Min 0.3 40 Max 3.6 150 Unit V C 5.2 Recommended Operating Conditions Table 7: Recommended Operating Conditions Symbol VDD33 IV DD T Parameter
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Current delivered by external power supply Operating temperature Min 2.7 0.5 40 Typical 3.3
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Max 3.6
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85 Unit V A C 5.3 DC Characteristics (3.3V, 25C) Symbol CIN VIH VIL IIH IIL VOH VOL IOH IOL RP U RP D VIL_nRST Table 8: DC Characteristics Parameter Pin capacitance High-level input voltage Low-level input voltage High-level input current Low-level input current High-level output voltage Low-level output voltage High-level source current (VDD = 3.3V, VOH =
2.64V, PAD_DRIVER = 3) Low-level sink current (VDD = 3.3V, VOH =
0.495V, PAD_DRIVER = 3) Pull-up resistor Pull-down resistor Low-level input voltage of EN to reset the mod-
ule Min
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0.75 VDD1 0.3
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0.8 VDD
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Typ 2
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40 28 45 45 0.6 Max
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VDD + 0.3 0.25 VDD 50 50
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0.1 VDD
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Unit pF V V nA nA V V mA mA k k V 1. VDD is the I/O voltage for a particular power domain of pins. More details can be found in Appendix IO_MUX of ESP32 Datasheet. Espressif Systems 10 ESP32-WROVER-B Datasheet V1.0 5. ELECTRICAL CHARACTERISTICS 5.4 Wi-Fi Radio Description Input frequency Output impedance*
Output power of PA for 11b mode Table 9: Wi-Fi Radio Characteristics Min 2412
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Tx power Typical
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*
22 Sensitivity 23 DSSS, 1 Mbps CCK, 11 Mbps OFDM, 6 Mbps OFDM, 54 Mbps HT20, MCS0 HT20, MCS7 HT40, MCS0 HT40, MCS7 MCS32 OFDM, 6 Mbps OFDM, 54 Mbps HT20, MCS0 HT20, MCS7
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98 91 93 75 93 73 90 70 89 Adjacent channel rejection 37 21 37 20
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Max 2462
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24
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Unit MHz dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dB dB dB dB
For the module that uses an IPEX antenna, the output impedance is 50. 5.5 BLE Radio 5.5.1 Receiver Table 10: Receiver Characteristics BLE Parameter Sensitivity @30.8% PER Maximum received signal @30.8% PER Co-channel C/I Adjacent channel selectivity C/I Conditions
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F = F0 + 1 MHz F = F0 1 MHz F = F0 + 2 MHz F = F0 2 MHz F = F0 + 3 MHz F = F0 3 MHz Min
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0
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Typ 97
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+10 5 5 25 35 25 45 Max
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Unit dBm dBm dB dB dB dB dB dB dB Espressif Systems 11 ESP32-WROVER-B Datasheet V1.0 5. ELECTRICAL CHARACTERISTICS Parameter Out-of-band blocking performance Intermodulation 5.5.2 Transmitter Conditions 30 MHz ~ 2000 MHz 2000 MHz ~ 2400 MHz 2500 MHz ~ 3000 MHz 3000 MHz ~ 12.5 GHz
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Min 10 27 27 10 36 Typ
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Max
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Unit dBm dBm dBm dBm dBm Table 11: Transmitter Characteristics BLE Parameter RF transmit power Gain control step RF power control range Adjacent channel transmit power f 1avg f 2max f 2avg/ f 1avg ICFT Drift rate Drift Conditions
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F = F0 2 MHz F = F0 3 MHz F = F0 > 3 MHz
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Min
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1
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247
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Typ 1.59
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52 58 60
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0.92 10 0.7 2 Max
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+2
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265
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Unit dBm dBm dBm dBm dBm dBm kHz kHz
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kHz kHz/50 s kHz Espressif Systems 12 ESP32-WROVER-B Datasheet V1.0 6. DIMENSIONS 6 Dimensions Figure 4: ESP32-WROVER-B Dimensions Figure 5: ESP32-WROVER-IB Dimensions Espressif Systems 13 ESP32-WROVER-B Datasheet V1.0 7. U.FL CONNECTOR DIMENSIONS 7. U.FL Connector Dimensions Unit: mm Figure 6: ESP32-WROVER-B/ESP32-WROVER-IB U.FL Connector Dimensions Espressif Systems 14 ESP32-WROVER-B Datasheet V1.0 8. LEARNING RESOURCES 8. Learning Resources 8.1 Must-Read Documents The following link provides documents related to ESP32. ESP32 Datasheet This document provides an introduction to the specifications of the ESP32 hardware, including overview, pin definitions, functional description, peripheral interface, electrical characteristics, etc. ESP-IDF Programming Guide It hosts extensive documentation for ESP-IDF ranging from hardware guides to API reference. ESP32 Technical Reference Manual The manual provides detailed information on how to use the ESP32 memory and peripherals. ESP32 Hardware Resources The zip files include the schematics, PCB layout, Gerber and BOM list of ESP32 modules and development boards. ESP32 Hardware Design Guidelines The guidelines outline recommended design practices when developing standalone or add-on systems based on the ESP32 series of products, including ESP32, the ESP-WROOM-32 module, and ESP32-
DevKitCthe development board. ESP32 AT Instruction Set and Examples This document introduces the ESP32 AT commands, explains how to use them, and provides examples of several common AT commands. Espressif Products Ordering Information 8.2 Must-Have Resources Here are the ESP32-related must-have resources. ESP32 BBS This is an Engineer-to-Engineer (E2E) Community for ESP32 where you can post questions, share knowledge, explore ideas, and help solve problems with fellow engineers. ESP32 GitHub ESP32 development projects are freely distributed under Espressifs MIT license on GitHub. It is established to help developers get started with ESP32 and foster innovation and the growth of general knowledge about the hardware and software surrounding ESP32 devices. ESP32 Tools This is a webpage where users can download ESP32 Flash Download Tools and the zip file ESP32 Certifi-
cation and Test. ESP-IDF This webpage links users to the official IoT development framework for ESP32. ESP32 Resources This webpage provides the links to all available ESP32 documents, SDK and tools. Espressif Systems 15 ESP32-WROVER-B Datasheet V1.0 REVISION HISTORY Revision History Date 2018.05 Release notes First release. Version V1.0
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment .This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
ISED RSS Warning:
This device complies with Innovation, Science and Economic Development Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR d'ISED applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. ISED RF exposure statement:
This equipment complies with ISED radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Le rayonnement de la classe b repecte ISED fixaient un environnement non contrls.Installation et mise en uvre de ce matriel devrait avec changeur distance minimale entre 20 cm ton corps.Lanceurs ou ne peuvent pas coexister cette antenne ou capteurs avec dautres.
,IC:21098-ESPWROVERB" or Contains FCC ID:2AC7Z-ESP32WROVERB,IC:21098-ESPWROVERB Any similar wording that expresses the same meaning may be used. Espressif Systems 16 ESP32-WROVER-B Datasheet V1.0