Espressif Systems ESP32-S3-WROOM-1 Manuale utente
ESP32S3WROOM1
ESP32S3WROOM1U
User Manual
2.4 GHz WiFi (802.11 b/g/n) and Bluetooth®5 (LE) module
Built around ESP32S3 series of SoCs, Xtensa®dualcore 32bit LX7 microprocessor
Flash up to 16 MB, PSRAM up to 8 MB
36 GPIOs, rich set of peripherals
Onboard PCB antenna or external antenna connector
ESP32S3WROOM1 ESP32S3WROOM1U
Pre-release v0.6
Espressif Systems
Copyright © 2022
www.espressif.com
1 Module Overview
1 Module Overview
1.1 Features
CPU and OnChip Memory
• ESP32-S3 series of SoCs embedded, Xtensa®
dual-core 32-bit LX7 microprocessor, up to 240
MHz
• 384 KB ROM
• 512 KB SRAM
• 16 KB SRAM in RTC
• Up to 8 MB PSRAM
WiFi
• 802.11 b/g/n
• Bit rate: 802.11n up to 150 Mbps
• A-MPDU and A-MSDU aggregation
• 0.4 µs guard interval support
• Center frequency range of operating channel:
2412 ~2462 MHz
Bluetooth
• Bluetooth LE: Bluetooth 5, Bluetooth mesh
• 2 Mbps PHY
• Long range mode
• Advertising extensions
• Multiple advertisement sets
• Channel selection algorithm #2
Peripherals
• GPIO, SPI, LCD interface, Camera interface,
UART, I2C, I2S, remote control, pulse counter,
LED PWM, USB 1.1 OTG, USB Serial/JTAG
controller, MCPWM, SDIO host, GDMA, TWAI®
controller (compatible with ISO 11898-1), ADC,
touch sensor, temperature sensor, timers and
watchdogs
Integrated Components on Module
• 40 MHz crystal oscillator
• Up to 16 MB SPI flash
Antenna Options
• On-board PCB antenna (ESP32-S3-WROOM-1)
• External antenna via a connector
(ESP32-S3-WROOM-1U)
Operating Conditions
• Operating voltage/Power supply: 3.0 ~3.6 V
• Operating ambient temperature:
–65 °C version: –40 ~65 °C
–85 °C version: –40 ~85 °C
–105 °C version: –40 ~105 °C
• Dimensions: See Table 1
1.2 Description
ESP32-S3-WROOM-1 and ESP32-S3-WROOM-1U are two powerful, generic Wi-Fi + Bluetooth LE MCU
modules that are built around the ESP32-S3 series of SoCs. On top of a rich set of peripherals, the acceleration
for neural network computing and signal processing workloads provided by the SoC make the modules an ideal
choice for a wide variety of application scenarios related to AI and Artificial Intelligence of Things (AIoT), such as
wake word detection, speech commands recognition, face detection and recognition, smart home, smart
appliances, smart control panel, smart speaker, etc.
ESP32-S3-WROOM-1 comes with a PCB antenna. ESP32-S3-WROOM-1U comes with an external antenna
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ESP32-S3-WROOM-1 & WROOM-1U Datasheet v0.6
1 Module Overview
connector. A wide selection of module variants are available for customers as shown in Table 1. Among the
module variants, those embed ESP32-S3R8 operate at –40 ~65 °C ambient temperature,
ESP32-S3-WROOM-1-H4 and ESP32-S3-WROOM-1U-H4 operate at –40 ~105 °C ambient temperature, and
other module variants operate at –40 ~85 °C ambient temperature.
Table 1: Ordering Information
Ordering Code Chip Embedded Flash (MB) PSRAM (MB) Dimensions (mm)
ESP32-S3-WROOM-1-N4 ESP32-S3 4 0
18 × 25.5 × 3.1
ESP32-S3-WROOM-1-N8 ESP32-S3 8 0
ESP32-S3-WROOM-1-N16 ESP32-S3 16 0
ESP32-S3-WROOM-1-H4 (105 °C) ESP32-S3 4 0
ESP32-S3-WROOM-1-N4R2 ESP32-S3R2 4 2 (Quad SPI)
ESP32-S3-WROOM-1-N8R2 ESP32-S3R2 8 2 (Quad SPI)
ESP32-S3-WROOM-1-N16R2 ESP32-S3R2 16 2 (Quad SPI)
ESP32-S3-WROOM-1-N4R8 (65 °C) ESP32-S3R8 4 8 (Octal SPI)
ESP32-S3-WROOM-1-N8R8 (65 °C) ESP32-S3R8 8 8 (Octal SPI)
ESP32-S3-WROOM-1-N16R8 (65 °C) ESP32-S3R8 16 8 (Octal SPI)
ESP32-S3-WROOM-1U-N4 ESP32-S3 4 0
18 × 19.2 × 3.2
ESP32-S3-WROOM-1U-N8 ESP32-S3 8 0
ESP32-S3-WROOM-1U-N16 ESP32-S3 16 0
ESP32-S3-WROOM-1U-H4 (105 °C) ESP32-S3 4 0
ESP32-S3-WROOM-1U-N4R2 ESP32-S3R2 4 2 (Quad SPI)
ESP32-S3-WROOM-1U-N8R2 ESP32-S3R2 8 2 (Quad SPI)
ESP32-S3-WROOM-1U-N16R2 ESP32-S3R2 16 2 (Quad SPI)
ESP32-S3-WROOM-1U-N4R8 (65 °C) ESP32-S3R8 4 8 (Octal SPI)
ESP32-S3-WROOM-1U-N8R8 (65 °C) ESP32-S3R8 8 8 (Octal SPI)
ESP32-S3-WROOM-1U-N16R8 (65 °C) ESP32-S3R8 16 8 (Octal SPI)
At the core of the modules is an ESP32-S3 series of SoC *, an Xtensa®32-bit LX7 CPU that operates at up to
240 MHz. You can 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-S3 integrates a rich set of peripherals including SPI, LCD, Camera interface, UART, I2C, I2S, remote
control, pulse counter, LED PWM, USB Serial/JTAG controller, MCPWM, SDIO host, GDMA, TWAI®controller
(compatible with ISO 11898-1), ADC, touch sensor, temperature sensor, timers and watchdogs, as well as up to
45 GPIOs. It also includes a full-speed USB 1.1 On-The-Go (OTG) interface to enable USB
communication.
Note:
* For more information on ESP32-S3 series of SoCs, please refer to ESP32-S3 Series Datasheet.
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Contents
Contents
1 Module Overview 2
1.1 Features 2
1.2 Description 2
2 Pin Definitions 7
2.1 Pin Layout 7
2.2 Pin Description 7
3 Get Started 10
3.1 What You Need 10
3.2 Hardware Connection 10
3.3 Set up Development Environment 11
3.3.1 Install Prerequisites 11
3.3.2 Get ESP-IDF 11
3.3.3 Set up Tools 12
3.3.4 Set up Environment Variables 12
3.4 Create Your First Project 12
3.4.1 Start a Project 12
3.4.2 Connect Your Device 12
3.4.3 Configure 13
3.4.4 Build the Project 13
3.4.5 Flash onto the Device 14
3.4.6 Monitor 15
4 U.S. FCC Statement 17
5 IC Statement 19
6 Related Documentation and Resources 21
Revision History 22
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2 Pin Definitions
2 Pin Definitions
2.1 Pin Layout
The pin diagram is applicable for ESP32-S3-WROOM-1 and ESP32-S3-WROOM-1U, but the latter has no
keepout zone.
GND
3V3
EN
IO4
IO5
IO6
IO7
IO20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
GND
IO1
IO2
TXD0
RXD0
IO42
IO41
IO40
IO39
IO38
IO37
IO36
IO35
IO0
41
GND
Keepout Zone
GND
GND GND GND
GND
GNDGNDGND
18
19
20
IO10
IO11
IO12
21
22
23
IO13
IO14
IO21
15
16
17
IO3
IO46
IO9
24
25
26
IO47
IO48
IO45
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IO15
IO16
IO17
IO18
IO8
IO19
Figure 1: Pin Layout (Top View)
2.2 Pin Description
The module has 41 pins. See pin definitions in Table 2.
For explanations of pin names and function names, as well as configurations of peripheral pins, please refer to
ESP32-S3 Series Datasheet.
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2 Pin Definitions
Table 2: Pin Definitions
Name No. Type aFunction
GND 1 P GND
3V3 2 P Power supply
EN 3 I
High: on, enables the chip.
Low: off, the chip powers off.
Note: Do not leave the EN pin floating.
IO4 4 I/O/T RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3
IO5 5 I/O/T RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4
IO6 6 I/O/T RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5
IO7 7 I/O/T RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6
IO15 8 I/O/T RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P
IO16 9 I/O/T RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N
IO17 10 I/O/T RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6
IO18 11 I/O/T RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, CLK_OUT3
IO8 12 I/O/T RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7, SUBSPICS1
IO19 13 I/O/T RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D-
IO20 14 I/O/T RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+
IO3 15 I/O/T RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2
IO46 16 I/O/T GPIO46
IO9 17 I/O/T RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD, SUBSPIHD
IO10 18 I/O/T RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4,
SUBSPICS0
IO11 19 I/O/T RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5,
SUBSPID
IO12 20 I/O/T RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6,
SUBSPICLK
IO13 21 I/O/T RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7,
SUBSPIQ
IO14 22 I/O/T RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS,
SUBSPIWP
IO21 23 I/O/T RTC_GPIO21, GPIO21
IO47 24 I/O/T SPICLK_P_DIFF,GPIO47, SUBSPICLK_P_DIFF
IO48 25 I/O/T SPICLK_N_DIFF,GPIO48, SUBSPICLK_N_DIFF
IO45 26 I/O/T GPIO45
IO0 27 I/O/T RTC_GPIO0, GPIO0
IO35 b28 I/O/T SPIIO6, GPIO35, FSPID, SUBSPID
IO36 b29 I/O/T SPIIO7, GPIO36, FSPICLK, SUBSPICLK
IO37 b30 I/O/T SPIDQS, GPIO37, FSPIQ, SUBSPIQ
IO38 31 I/O/T GPIO38, FSPIWP, SUBSPIWP
IO39 32 I/O/T MTCK, GPIO39, CLK_OUT3, SUBSPICS1
IO40 33 I/O/T MTDO, GPIO40, CLK_OUT2
IO41 34 I/O/T MTDI, GPIO41, CLK_OUT1
Cont’d on next page
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2 Pin Definitions
Table 2 – cont’d from previous page
Name No. Type aFunction
IO42 35 I/O/T MTMS, GPIO42
RXD0 36 I/O/T U0RXD, GPIO44, CLK_OUT2
TXD0 37 I/O/T U0TXD, GPIO43, CLK_OUT1
IO2 38 I/O/T RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1
IO1 39 I/O/T RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0
GND 40 P GND
EPAD 41 P GND
aP: power supply; I: input; O: output; T: high impedance. Pin functions in bold font are the default
pin functions.
bIn module variants that have embedded OSPI PSRAM, i.e., that embed ESP32-S3R8, pins IO35,
IO36, and IO37 connect to the OSPI PSRAM and are not available for other uses.
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3 Get Started
3 Get Started
3.1 What You Need
To develop applications for module you need:
• 1 x ESP32-S3-WROOM-1 or ESP32-S3-WROOM-1U
• 1 x Espressif RF testing board
• 1 x USB-to-Serial board
• 1 x Micro-USB cable
• 1 x PC running Linux
In this user guide, we take Linux operating system as an example. For more information about the configuration
on Windows and macOS, please refer to ESP-IDF Programming Guide.
3.2 Hardware Connection
1. Solder the ESP32-S3-WROOM-1 or ESP32-S3-WROOM-1U module to the RF testing board as shown in
Figure 2.
Figure 2: Hardware Connection
2. Connect the RF testing board to the USB-to-Serial board via TXD, RXD, and GND.
3. Connect the USB-to-Serial board to the PC.
4. Connect the RF testing board to the PC or a power adapter to enable 5 V power supply, via the Micro-USB
cable.
5. During download, connect IO0 to GND via a jumper. Then, turn ”ON” the testing board.
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