The ESP32-S3-DevKitC is an entry-level development board equipped with either ESP32-S3-WROOM-1 or ESP32-S3-WROOM-1U, a module named for its small size. This board integrates complete Wi-Fi and Bluetooth Low Energy functions. For more information, check ESP32-S3-DevKitC [1].
HardwareïESP32-S3 is a low-power MCU-based system on a chip (SoC) with integrated 2.4 GHz Wi-Fi and Bluetooth® Low Energy (Bluetooth LE). It consists of high-performance dual-core microprocessor (Xtensa® 32-bit LX7), a low power coprocessor, a Wi-Fi baseband, a Bluetooth LE baseband, RF module, and numerous peripherals.
ESP32-S3-DevKitC includes the following features:
Dual core 32-bit Xtensa Microprocessor (Tensilica LX7), running up to 240MHz
Additional vector instructions support for AI acceleration
512KB of SRAM
384KB of ROM
Wi-Fi 802.11b/g/n
Bluetooth LE 5.0 with long-range support and up to 2Mbps data rate
Digital interfaces:
45 programmable GPIOs
4x SPI
1x LCD interface (8-bit ~16-bit parallel RGB, I8080 and MOTO6800), supporting conversion between RGB565, YUV422, YUV420 and YUV411
1x DVP 8-bit ~16-bit camera interface
3x UART
2x I2C
2x I2S
1x RMT (TX/RX)
1x pulse counter
LED PWM controller, up to 8 channels
1x full-speed USB OTG
1x USB Serial/JTAG controller
2x MCPWM
1x SDIO host controller with 2 slots
General DMA controller (GDMA), with 5 transmit channels and 5 receive channels
1x TWAI® controller, compatible with ISO 11898-1 (CAN Specification 2.0)
Addressable RGB LED, driven by GPIO38.
Analog interfaces:
2x 12-bit SAR ADCs, up to 20 channels
1x temperature sensor
14x touch sensing IOs
Timers:
4x 54-bit general-purpose timers
1x 52-bit system timer
3x watchdog timers
Low Power:
Power Management Unit with five power modes
Ultra-Low-Power (ULP) coprocessors: ULP-RISC-V and ULP-FSM
Security:
Secure boot
Flash encryption
4-Kbit OTP, up to 1792 bits for users
Cryptographic hardware acceleration: (AES-128/256, Hash, RSA, RNG, HMAC, Digital signature)
ESP32S3-DevKitC allows 2 different applications to be executed in ESP32-S3 SoC. Due to its dual-core architecture, each core can be enabled to execute customized tasks in stand-alone mode and/or exchanging data over OpenAMP framework. See Inter-Processor Communication (IPC) folder as code reference.
For more information, check the datasheet at ESP32-S3 Datasheet [2] or the technical reference manual at ESP32-S3 Technical Reference Manual [3].
Supported FeaturesïThe esp32s3_devkitc board supports the hardware features listed below.
vnd,foo
esp32s3_devkitc/esp32s3/appcpu targetï
Type
Location
Description
Compatible
CPU
on-chip
Espressif Xtensa LX7 CPU2
ADC
on-chip
ESP32 ADC2
Bluetooth
on-chip
Bluetooth HCI for Espressif ESP321
CAN
on-chip
ESP32 Two-Wire Automotive Interface (TWAI)1
Clock control
on-chip
ESP32 Clock (Power & Clock Controller Module) Module1
Counter
on-chip
ESP32 general-purpose timers1 3
on-chip
ESP32 counters4
DMA
on-chip
ESP32 GDMA (General Direct Memory Access)1
Flash controller
on-chip
ESP32 flash controller1
espressif,esp32-flash-controller
GPIO & Headers
on-chip
ESP32 GPIO controller2
I2C
on-chip
ESP32 I2C2
I2S
on-chip
ESP32 I2S2
Input
on-chip
ESP32 touch sensor input1
Interrupt controller
on-chip
ESP32 Interrupt controller1
IPM
on-chip
ESP32 soft inter processor message1
Mailbox
on-chip
ESP32 soft mailbox1
Memory controller
on-chip
ESP32 pseudo-static RAM controller1
MTD
on-chip
Flash node1
on-chip
Fixed partitions of a flash (or other non-volatile storage) memory1
Pin control
on-chip
ESP32 pin controller1
PWM
on-chip
ESP32 LED Control (LEDC)1
on-chip
ESP32 Motor Control Pulse Width Modulator (MCPWM)2
RNG
on-chip
ESP32 TRNG (True Random Number Generator)1
SDHC
on-chip
ESP32 SDHC controller1
on-chip
ESP32 SDHC controller slot2
Sensors
on-chip
ESP32 temperature sensor1
on-chip
ESP32 Pulse Counter (PCNT)1
Serial controller
on-chip
ESP32 UART3
on-chip
ESP32 UART1
SPI
on-chip
ESP32 SPI2
SRAM
on-chip
Generic on-chip SRAM2
Video
on-chip
ESP32 LCD CAM Peripheral interface1
Watchdog
on-chip
ESP32 XT Watchdog Timer1
on-chip
ESP32 watchdog2
Wi-Fi
on-chip
ESP32 SoC Wi-Fi1
esp32s3_devkitc/esp32s3/procpu targetï
Type
Location
Description
Compatible
CPU
on-chip
Espressif Xtensa LX7 CPU2
ADC
on-chip
ESP32 ADC2
Bluetooth
on-chip
Bluetooth HCI for Espressif ESP321
CAN
on-chip
ESP32 Two-Wire Automotive Interface (TWAI)1
Clock control
on-chip
ESP32 Clock (Power & Clock Controller Module) Module1
Counter
on-chip
ESP32 general-purpose timers4
on-chip
ESP32 counters4
DMA
on-chip
ESP32 GDMA (General Direct Memory Access)1
Flash controller
on-chip
ESP32 flash controller1
espressif,esp32-flash-controller
GPIO & Headers
on-chip
ESP32 GPIO controller2
I2C
on-chip
ESP32 I2C2
I2S
on-chip
ESP32 I2S2
Input
on-chip
ESP32 touch sensor input1
on-board
Group of GPIO-bound input keys1
Interrupt controller
on-chip
ESP32 Interrupt controller1
IPM
on-chip
ESP32 soft inter processor message1
Mailbox
on-chip
ESP32 soft mailbox1
Memory controller
on-chip
ESP32 pseudo-static RAM controller1
MTD
on-chip
Flash node1
on-chip
Fixed partitions of a flash (or other non-volatile storage) memory1
Pin control
on-chip
ESP32 pin controller1
PWM
on-chip
ESP32 LED Control (LEDC)1
on-chip
ESP32 Motor Control Pulse Width Modulator (MCPWM)2
RNG
on-chip
ESP32 TRNG (True Random Number Generator)1
SDHC
on-chip
ESP32 SDHC controller1
on-chip
ESP32 SDHC controller slot2
Sensors
on-chip
ESP32 temperature sensor1
on-chip
ESP32 Pulse Counter (PCNT)1
Serial controller
on-chip
on-chip
ESP32 UART1
SPI
on-chip
ESP32 SPI2
SRAM
on-chip
Generic on-chip SRAM2
Video
on-chip
ESP32 LCD CAM Peripheral interface1
Watchdog
on-chip
ESP32 XT Watchdog Timer1
on-chip
Wi-Fi
on-chip
ESP32 SoC Wi-Fi1
PrerequisitesïEspressif HAL requires WiFi and Bluetooth binary blobs in order work. Run the command below to retrieve those files.
west blobs fetch hal_espressif
Note
It is recommended running the command above after west update.
The esp32s3_devkitc board supports the runners and associated west commands listed below.
The board could be loaded using the single binary image, without 2nd stage bootloader. It is the default option when building the application without additional configuration.
Note
Simple boot does not provide any security features nor OTA updates.
MCUboot bootloaderïUser may choose to use MCUboot bootloader instead. In that case the bootloader must be built (and flashed) at least once.
There are two options to be used when building an application:
Sysbuild
Manual build
Note
User can select the MCUboot bootloader by adding the following line to the board default configuration file.
CONFIG_BOOTLOADER_MCUBOOT=ySysbuildï
The sysbuild makes possible to build and flash all necessary images needed to bootstrap the board with the ESP32-S3 SoC.
To build the sample application using sysbuild use the command:
west build -b esp32s3_devkitc/esp32s3/procpu --sysbuild samples/hello_world
By default, the ESP32 sysbuild creates bootloader (MCUboot) and application images. But it can be configured to create other kind of images.
Build directory structure created by sysbuild is different from traditional Zephyr build. Output is structured by the domain subdirectories:
build/ âââ hello_world â  âââ zephyr â  âââ zephyr.elf â  âââ zephyr.bin âââ mcuboot â âââ zephyr â âââ zephyr.elf â âââ zephyr.bin âââ domains.yaml
Note
With --sysbuild option the bootloader will be re-build and re-flash every time the pristine build is used.
For more information about the system build please read the Sysbuild (System build) documentation.
Manual buildïDuring the development cycle, it is intended to build & flash as quickly possible. For that reason, images can be built one at a time using traditional build.
The instructions following are relevant for both manual build and sysbuild. The only difference is the structure of the build directory.
Note
Remember that bootloader (MCUboot) needs to be flash at least once.
Build and flash applications as usual (see Building an Application and Run an Application for more details).
# From the root of the zephyr repository west build -b esp32s3_devkitc/esp32s3/procpu samples/hello_world
The usual flash target will work with the esp32s3_devkitc board configuration. Here is an example for the Hello World application.
# From the root of the zephyr repository west build -b esp32s3_devkitc/esp32s3/procpu samples/hello_world west flash
Open the serial monitor using the following command:
After the board has automatically reset and booted, you should see the following message in the monitor:
***** Booting Zephyr OS vx.x.x-xxx-gxxxxxxxxxxxx ***** Hello World! esp32s3_devkitcBoard variants using Snippetsï
ESP32 boards can be assembled with different modules using multiple combinations of SPI flash sizes, PSRAM sizes and PSRAM modes. The snippets under snippets/espressif provide a modular way to apply these variations at build time without duplicating board definitions.
The following snippet-based variants are supported:
Snippet name
Description
Flash memory size
flash-4M
Board with 4MB of flash
flash-8M
Board with 8MB of flash
flash-16M
Board with 16MB of flash
flash-32M
Board with 32MB of flash
PSRAM memory size
psram-2M
Board with 2MB of PSRAM
psram-4M
Board with 4MB of PSRAM
psram-8M
Board with 8MB of PSRAM
PSRAM utilization
psram-reloc
Relocate flash to PSRAM
psram-wifi
Wi-Fi buffers in PSRAM
To apply a board variant, use the -S flag with west build:
west build -b <esp_board_name_qualifier> -S flash-32M -S psram-4M samples/hello_world
Note: These snippets are applicable to boards with compatible hardware support for the selected flash/PSRAM configuration.
DebuggingïESP32-S3 support on OpenOCD is available at OpenOCD ESP32 [5].
ESP32-S3 has a built-in JTAG circuitry and can be debugged without any additional chip. Only an USB cable connected to the D+/D- pins is necessary.
Further documentation can be obtained from the SoC vendor in JTAG debugging for ESP32-S3 [4].
Here is an example for building the Hello World application.
# From the root of the zephyr repository west build -b esp32s3_devkitc/esp32s3/procpu samples/hello_world west flash
You can debug an application in the usual way. Here is an example for the Hello World application.
# From the root of the zephyr repository west build -b esp32s3_devkitc/esp32s3/procpu samples/hello_world west debugReferencesï
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4