ESP32 S3 Zero S3Fh4R2 Mini DEV Board WiFi+Bluetooth TYPE C ARDUINO ESP SUPERMINI

ESP32-S3 Zero S3FH4R2 Mini Development Board

Product Description

The ESP32-S3 Zero S3FH4R2 Mini Development Board is a compact and powerful development platform designed for IoT, wireless communication, robotics, automation, wearable electronics, and embedded applications. Based on the ESP32-S3, it features a dual-core Xtensa 32-bit LX7 processor with a clock speed of up to 240MHz, providing reliable performance for demanding embedded projects.

The board integrates 2.4GHz Wi-Fi and Bluetooth 5 LE for wireless connectivity and includes 4MB Flash and 2MB PSRAM for storing programs and handling memory-intensive applications. Its ultra-compact castellated design and onboard ceramic antenna make it suitable for direct integration into custom carrier boards.

With 24 GPIO pins and multiple interfaces including SPI, I2C, UART, I2S, and ADC, the ESP32-S3 Zero provides flexible hardware connectivity. Its USB interface, Arduino IDE compatibility, and low-power capabilities make it suitable for both prototyping and custom embedded product development.

Features

• ESP32-S3 dual-core Xtensa 32-bit LX7 processor
• Clock frequency up to 240MHz
• Integrated 2.4GHz Wi-Fi 802.11 b/g/n
• Bluetooth 5 LE support
• 512KB SRAM and 384KB ROM
• 4MB onboard Flash
• 2MB PSRAM
• USB full-speed controller
• 24 × GPIO pins
• 4 × SPI interfaces
• 2 × I2C interfaces
• 3 × UART interfaces
• 2 × I2S interfaces
• ADC support
• Castellated module design
• Onboard ceramic antenna
• Low-power operation
• USB Type-C interface
• Compatible with Arduino IDE
• Suitable for compact embedded projects

Specifications

Parameter	Specification
Product Type	Mini Development Board
Model	ESP32-S3 Zero S3FH4R2
Processor	Xtensa 32-bit LX7 Dual-Core
Clock Frequency	Up to 240MHz
Wi-Fi	2.4GHz 802.11 b/g/n
Bluetooth	Bluetooth 5 LE
SRAM	512KB
ROM	384KB
Flash	4MB
PSRAM	2MB
GPIO	24
SPI	4
I2C	2
UART	3
I2S	2
ADC	Supported
USB	Full-Speed USB
Antenna	Onboard Ceramic Antenna
Module Type	Castellated
Development	Arduino IDE Compatible

Design and Construction

The ESP32-S3 Zero features an ultra-compact castellated module design, allowing it to be soldered directly onto a custom carrier board or PCB. This design is especially useful for embedded products where PCB space is limited.

An integrated ceramic antenna provides wireless connectivity without requiring a separate external antenna in suitable applications. The board also provides 24 GPIO pins, allowing flexible connection of sensors, displays, motors, communication modules, and other peripherals.

The USB interface provides convenient programming and communication, while the compact construction makes the board suitable for portable and space-constrained projects.

Working Principle

The ESP32-S3 processor executes the application firmware and manages connected sensors, peripherals, and external devices. The integrated Wi-Fi and Bluetooth 5 LE capabilities allow the board to communicate wirelessly with smartphones, computers, routers, cloud services, and other compatible devices.

The onboard Flash stores firmware and application data, while PSRAM provides additional memory for applications requiring larger data buffers or more complex processing.

The available GPIO and peripheral interfaces allow users to connect external hardware through SPI, I2C, UART, I2S, and ADC interfaces.

Low-Power Operation

The ESP32-S3 Zero supports flexible power and clock management to reduce energy consumption when required. This makes it suitable for portable, battery-powered, and always-on IoT applications where power efficiency is important.

Applications

• IoT Devices: Develop connected sensors and smart devices.
• Smart Home Automation: Build wireless controllers and automation systems.
• Wearable Electronics: Suitable for compact and low-power wearable devices.
• Robotics: Provides processing and wireless connectivity for robots.
• Drone Projects: Suitable for wireless control and embedded drone systems.
• Wireless Sensor Networks: Collect and transmit sensor information.
• Industrial Automation: Useful for monitoring and control applications.
• DIY Electronics: Suitable for makers and hobbyists.
• Educational Projects: Useful for learning ESP32-S3 and embedded programming.
• Custom Embedded Products: Can be integrated directly into custom carrier boards.

Package Includes

• 1 × ESP32-S3 Zero S3FH4R2 Mini Development Board

Product Disclaimer

Product images are provided for representation only and may differ slightly from the actual product in terms of colour, dimensions, component placement, antenna appearance, or overall design.

Please verify the board’s pin configuration, power requirements, interface specifications, and electrical characteristics before connecting external components.