ESPRESSIF SYSTEMS ESP32WROVERB Wi-Fi & Bluetooth Module User Manual
ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD Wi-Fi & Bluetooth Module
User Manual
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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.
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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 MERCHANTABILITY, 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 document 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 Š 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
10
5.1
Absolute Maximum Ratings
10
5.2
Recommended Operating Conditions
10
5.3
DC Characteristics (3.3V, 25°C)
10
5.4
Wi-Fi Radio
11
5.5
BLE Radio
11
5.5.1 Receiver
11
5.5.2 Transmitter
12
6 Dimensions
13
7 U.FL Connector Dimensions
14
8 Learning Resources
15
8.1 Must-Read Documents
8.2 Must-Have Resources
Revision History
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
10
Recommended Operating Conditions
10
DC Characteristics
10
Wi-Fi Radio Characteristics
11
10
Receiver Characteristics â BLE
11
11
Transmitter Characteristics â BLE
12
List of Figures
ESP32-WROVER-B/ESP32-WROVER-IB Pin Layout
ESP32-WROVER-B/ESP32-WROVER-IB Schematics
13
ESP32-WROVER-B/ESP32-WROVER-IB Peripheral Schematics
14
ESP32-WROVER-B Dimensions
15
ESP32-WROVER-IB Dimensions
15
ESP32-WROVER-B/ESP32-WROVER-IB U.FL Connector Dimensions
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
Module
Chip embedded
Flash
PSRAM
Antenna
Dimensions (mm)
ESP32-WROVER-B
ESP32-D0WD
4 MB
8 MB
PCB antenna
(18Âą0.15)x(31.4Âą0.2)x(3.5Âą0.15)
ESP32-WROVER-IB
ESP32-D0WD
4 MB
8 MB
IPEX antenna
(18Âą0.15)x(31.4Âą0.2)x(3.5Âą0.15)
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 ÂľA, 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
ESP32-WROVER-B Datasheet V1.0
1. OVERVIEW
Table 2: ESP32-WROVER-B/ESP32-WROVER-IB Specifications
Categories
Items
Specifications
802.11 b/g/n20/n40
Wi-Fi
Protocols
A-MPDU and A-MSDU aggregation and 0.4 Âľs guard interval support
Frequency range
2412-2462MHz(802.11b/g/n-HT20),2422-2452MHz(802.11n-HT40)
Protocols
Bluetooth v4.2 BR/EDR and BLE specification
NZIF receiver with â97 dBm sensitivity
Bluetooth
Radio
Class-1, class-2 and class-3 transmitter
AFH
Audio
CVSD and SBC
SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM,
Module interface
I2S, IR
GPIO, capacitive touch sensor, ADC, DAC
Hardware
On-chip sensor
Hall sensor
On-board clock
40 MHz crystal
Operating voltage/Power supply
2.7 ~ 3.6V
Operating current
Average: 80 mA
Minimum current delivered by
power supply
Recommended operating temperature range
Software
â40°C ~ 85°C
Package size
(18Âą0.15) mm x (31.4Âą0.2) mm x (3.5Âą0.15) mm
Wi-Fi mode
Station/SoftAP/SoftAP+Station/P2P
Security
WPA/WPA2/WPA2-Enterprise/WPS
Encryption
AES/RSA/ECC/SHA
Firmware upgrade
Software development
Espressif Systems
500 mA
UART Download / OTA (via network) / download and write
firmware via host
Supports Cloud Server Development / SDK for custom
firmware development
Network protocols
IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT
User configuration
AT instruction set, cloud server, Android/iOS app
ESP32-WROVER-B Datasheet V1.0
2. PIN DEFINITIONS
2.
Pin Definitions
2.1 Pin Layout
Keepout Zone
GND
GND
38
VDD33
IO23
37
EN
IO22
36
SENSOR_VP
TXD0
35
SENSOR_VN
RXD0
34
IO34
IO21
33
IO35
NC
32
IO32
IO19
31
IO33
IO18
30
10
IO25
IO5
29
11
IO26
NC
28
12
IO27
NC
27
13
IO14
IO4
26
14
IO12
IO0
25
15
GND
IO2
24
16
IO13
IO15
23
17
SD2
SD1
22
18
SD3
SD0
21
19
CMD
CLK
20
39:GND
Figure 1: ESP32-WROVER-B/ESP32-WROVER-IB Pin Layout
Espressif Systems
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
Name
No.
Type
Function
GND
Ground
3V3
Power supply.
EN
Chip-enable signal. Active high.
SENSOR_VP
GPIO36, ADC_H, ADC1_CH0, RTC_GPIO0
SENSOR_VN
GPIO39, ADC1_CH3, ADC_H, RTC_GPIO3
IO34
GPIO34, ADC1_CH6, RTC_GPIO4
IO35
GPIO35, ADC1_CH7, RTC_GPIO5
IO32
I/O
IO33
I/O
IO25
10
I/O
GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0
IO26
11
I/O
GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1
IO27
12
I/O
GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV
IO14
13
I/O
IO12
14
I/O
GND
15
IO13
16
I/O
SHD/SD2*
17
I/O
GPIO9, SD_DATA2, SPIHD, HS1_DATA2, U1RXD
SWP/SD3*
18
I/O
GPIO10, SD_DATA3, SPIWP, HS1_DATA3, U1TXD
SCS/CMD*
19
I/O
GPIO11, SD_CMD, SPICS0, HS1_CMD, U1RTS
SCK/CLK*
20
I/O
GPIO6, SD_CLK, SPICLK, HS1_CLK, U1CTS
SDO/SD0*
21
I/O
GPIO7, SD_DATA0, SPIQ, HS1_DATA0, U2RTS
SDI/SD1*
22
I/O
GPIO8, SD_DATA1, SPID, HS1_DATA1, U2CTS
IO15
23
I/O
IO2
24
I/O
IO0
25
I/O
IO4
26
I/O
NC1
27
NC2
28
IO5
29
I/O
GPIO5, VSPICS0, HS1_DATA6, EMAC_RX_CLK
IO18
30
I/O
GPIO18, VSPICLK, HS1_DATA7
IO19
31
I/O
GPIO19, VSPIQ, U0CTS, EMAC_TXD0
Espressif Systems
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
GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK,
HS2_CLK, SD_CLK, EMAC_TXD2
GPIO12,
ADC2_CH5,
TOUCH5,
RTC_GPIO15,
MTDI,
HSPIQ,
HS2_DATA2, SD_DATA2, EMAC_TXD3
Ground
GPIO13,
ADC2_CH4,
TOUCH4,
RTC_GPIO14,
MTCK, HSPID,
HS2_DATA3, SD_DATA3, EMAC_RX_ER
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,
ADC2_CH1,
TOUCH1,
RTC_GPIO11,
CLK_OUT1,
EMAC_TX_CLK
GPIO4, ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1,
SD_DATA1, EMAC_TX_ER
ESP32-WROVER-B Datasheet V1.0
2. PIN DEFINITIONS
Name
No.
Type
Function
NC
32
IO21
33
I/O
GPIO21, VSPIHD, EMAC_TX_EN
RXD0
34
I/O
GPIO3, U0RXD, CLK_OUT2
TXD0
35
I/O
GPIO1, U0TXD, CLK_OUT3, EMAC_RXD2
IO22
36
I/O
GPIO22, VSPIWP, U0RTS, EMAC_TXD1
IO23
37
I/O
GPIO23, VSPID, HS1_STROBE
GND
38
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 âGPIO_STRAPPINGâ.
During the chipâs 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 â0â or â1â, and hold these bits until the chip is powered
down or shut down. The strapping bits configure the deviceâs 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
MCUâs 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)
Pin
Default
MTDI
Pull-down
3.3V
1.8V
Booting Mode
Pin
Default
SPI Boot
Download Boot
GPIO0
Pull-up
GPIO2
Pull-down
Donât-care
Enabling/Disabling Debugging Log Print over U0TXD During Booting
Pin
Default
U0TXD Toggling
U0TXD Silent
MTDO
Pull-up
Espressif Systems
ESP32-WROVER-B Datasheet V1.0
2. PIN DEFINITIONS
Timing of SDIO Slave
Pin
Default
MTDO
GPIO5
Falling-edge
Input
Falling-edge
Input
Rising-edge
Input
Rising-edge
Input
Falling-edge Output
Rising-edge Output
Falling-edge Output
Rising-edge Output
Pull-up
Pull-up
Note:
⢠Firmware can configure register bits to change the settings of âVoltage of Internal LDO (VDD_SDIO)â and âTiming
of SDIO Slaveâ after booting.
⢠Internal pull-up resistor for MTDI is not populated in the module, as the flash and SRAM in ESP32-WROVERB/ESP32-WROVER-IB only support a power voltage of 3.3V (output by VDD_SDIO).
Espressif Systems
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 XtensaÂŽ 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 protect developersâ 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.
â 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.
â 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 memorymapped 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
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
â Active mode: The chip radio is powered on. The chip can receive, transmit, or listen.
â Modem-sleep mode: The CPU is operational and the clock is configurable. The Wi-Fi/Bluetooth baseband and radio are disabled.
â 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.
â 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.
â 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
Description
Power consumption
Wi-Fi Tx packet
Active (RF working)
Wi-Fi / BT Tx packet
Please refer to ESP32 Datasheet.
Wi-Fi / BT Rx and listening
Max speed 240 MHz: 30 mA ~ 50 mA
Modem-sleep
Normal speed 80 MHz: 20 mA ~ 25 mA
The CPU is powered on.
Slow speed 2 MHz: 2 mA ~ 4 mA
Light-sleep
0.8 mA
The ULP co-processor is powered on.
150 ÂľA
ULP sensor-monitored pattern
100 ÂľA @1% duty
RTC timer + RTC memory
10 ÂľA
Hibernation
RTC timer only
5 ÂľA
Power off
CHIP_PU is set to low level, the chip is powered off
0.1 ÂľA
Deep-sleep
Note:
⢠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 ÂľA.
Espressif Systems
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 moduleâs integrated SPI flash and PSRAM. GPIOs 16 and 17 are connected to the moduleâs integrated PSRAM.
For details, please see Section 6 Schematics.
Espressif Systems
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
Parameter
Min
Max
Unit
VDD33
â0.3
3.6
Tstore
Storage temperature
â40
150
°C
5.2 Recommended Operating Conditions
Table 7: Recommended Operating Conditions
Symbol
Parameter
Min
Typical
Max
Unit
VDD33
2.7
3.3
3.6
IV DD
Current delivered by external power supply
0.5
Operating temperature
â40
85
°C
5.3 DC Characteristics (3.3V, 25°C)
Table 8: DC Characteristics
Symbol
Parameter
Min
Typ
Max
Unit
CIN
Pin capacitance
pF
VIH
High-level input voltage
0.75 Ă VDD1
VDD + 0.3
VIL
Low-level input voltage
â0.3
0.25 Ă VDD
IIH
High-level input current
50
nA
IIL
Low-level input current
50
nA
VOH
High-level output voltage
0.8 Ă VDD
VOL
Low-level output voltage
0.1 Ă VDD
40
mA
28
mA
IOH
IOL
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)
RP U
Pull-up resistor
45
kďż˝
RP D
Pull-down resistor
45
kďż˝
0.6
VIL_nRST
Low-level input voltage of EN to reset the module
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
Table 9: Wi-Fi Radio Characteristics
Description
Min
Typical
Max
Unit
Input frequency
2412
2462
MHz
Output impedance*
âŚ
23
24
dBm
Tx power
Output power of PA for 11b mode
22
Sensitivity
DSSS, 1 Mbps
â98
dBm
CCK, 11 Mbps
â91
dBm
OFDM, 6 Mbps
â93
dBm
OFDM, 54 Mbps
â75
dBm
HT20, MCS0
â93
dBm
HT20, MCS7
â73
dBm
HT40, MCS0
â90
dBm
HT40, MCS7
â70
dBm
MCS32
â89
dBm
Adjacent channel rejection
â
OFDM, 6 Mbps
37
dB
OFDM, 54 Mbps
21
dB
HT20, MCS0
37
dB
HT20, MCS7
20
dB
For the module that uses an IPEX antenna, the output impedance is 50âŚ.
5.5 BLE Radio
5.5.1 Receiver
Table 10: Receiver Characteristics â BLE
Parameter
Conditions
Min
Typ
Max
Unit
Sensitivity @30.8% PER
â97
dBm
Maximum received signal @30.8% PER
dBm
Co-channel C/I
+10
dB
F = F0 + 1 MHz
â5
dB
F = F0 â 1 MHz
â5
dB
F = F0 + 2 MHz
â25
dB
F = F0 â 2 MHz
â35
dB
F = F0 + 3 MHz
â25
dB
F = F0 â 3 MHz
â45
dB
Adjacent channel selectivity C/I
Espressif Systems
11
ESP32-WROVER-B Datasheet V1.0
5. ELECTRICAL CHARACTERISTICS
Parameter
Out-of-band blocking performance
Intermodulation
Conditions
Min
Typ
Max
Unit
30 MHz ~ 2000 MHz
â10
dBm
2000 MHz ~ 2400 MHz
â27
dBm
2500 MHz ~ 3000 MHz
â27
dBm
3000 MHz ~ 12.5 GHz
â10
dBm
â36
dBm
5.5.2 Transmitter
Table 11: Transmitter Characteristics â BLE
Parameter
Conditions
Min
RF transmit power
Gain control step
RF power control range
Max
Unit
dBm
dBm
â1
+2
dBm
F = F0 Âą 2 MHz
â52
dBm
F = F0 Âą 3 MHz
â58
dBm
F = F0 Âą > 3 MHz
â60
dBm
â f 1avg
265
kHz
â f 2max
247
kHz
â f 2avg /â f 1avg
â0.92
ICFT
â10
kHz
Drift rate
0.7
kHz/50 Âľs
Drift
kHz
Adjacent channel transmit power
Espressif Systems
12
Typ
1.59
ESP32-WROVER-B Datasheet V1.0
6. DIMENSIONS
Dimensions
ăâ¸ăă
ăăâ¸ăă
ăâ¸ă
ăâ¸ă
Figure 4: ESP32-WROVER-B Dimensions
ăâ¸ăă
ăăâ¸ăă
ăâ¸ă
ăâ¸ă
Figure 5: ESP32-WROVER-IB Dimensions
Espressif Systems
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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
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ESP32-WROVER-B Datasheet V1.0
8.
8.
LEARNING RESOURCES
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 ESP32DevKitCâthe 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 Espressifâs 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 âESP32 Certification and Testâ.
⢠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. �����������
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ESP32-WROVER-B Datasheet V1.0
REVISION HISTORY
Revision History
Date
Version
Release notes
2018.05
V1.0
First release.
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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.
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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 prĂŠsent appareil est conforme aux CNR d'ISED applicables aux appareils radio exempts de licence.
L'exploitation est autorisĂŠe aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radioĂŠlectrique subi, mĂŞme 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 contrĂ´lĂŠs.Installation et mise en
Ĺuvre de ce matĂŠriel devrait avec ĂŠchangeur distance minimale entre 20 cm ton corps.Lanceurs ou ne peuvent
pas coexister cette antenne ou capteurs avec dâautres.
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same meaning may be used.
Espressif Systems
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ESP32-WROVER-B Datasheet V1.0
Source Exif Data:
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