Unexpected Maker FeatherS3 Neo ESP32-S3 Dev Board

Name: Unexpected Maker FeatherS3 Neo ESP32-S3 Dev Board
Brand: Unexpected Maker
SKU: IOWC-1225
Price: 2099.00 INR
Availability: OutOfStock

₹2,099.00 (Inclusive of all taxes)

Out of Stock

The Unexpected Maker FeatherS3 Neo is an ESP32-S3 development board in the Feather form factor, featuring a 240 MHz dual-core processor, 8 MB flash, 2 MB PSRAM, and integrated 2.4 GHz Wi-Fi with a 3D antenna, optimized for low-power IoT prototyping.

Features

ESP32-S3 Dual-Core Power: Features a 240 MHz dual-core Xtensa LX7 processor with 8 MB flash and 2 MB PSRAM for demanding IoT applications and wireless protocols.
Integrated Wi-Fi & 3D Antenna: Equipped with 2.4 GHz 802.11b/g/n Wi-Fi and an efficient onboard 3D antenna for robust wireless connectivity in compact designs.
Optimized Low-Power Design: Includes dual 700mA LDO regulators and a power path optimized for battery operation, extending runtime for remote sensing projects.
Feather-Form Factor & Expandability: Adopts the standard Feather footprint with 22 GPIO pins, USB-C, and a QWIIC/STEMMA connector for rapid sensor and display integration.
Developer-Friendly Features: Comes with built-in LED indicators, back-feed protected USB-C, and supports development with Arduino IDE, ESP-IDF, and MicroPython.

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Description

The Unexpected Maker FeatherS3 Neo is a feature-packed development board built around the Espressif ESP32-S3 microcontroller. It combines high-performance processing with integrated wireless connectivity in the popular Adafruit Feather form factor, making it an ideal platform for IoT device prototyping and wireless sensor nodes.

Its architecture is centered on a 240 MHz dual-core Xtensa LX7 processor, supported by 8 MB of SPI flash and an additional 2 MB of PSRAM, providing ample resources for complex firmware, Over-the-Air (OTA) updates, and data buffering. The board’s integrated 2.4 GHz Wi-Fi radio, coupled with a proprietary 3D antenna, ensures reliable network connectivity without requiring external antenna components, simplifying enclosure design.

Power management is a key focus, with dual 700mA 3.3V LDO regulators and a circuit design optimized for battery-powered operation. This allows developers to build devices that leverage the ESP32-S3’s deep sleep modes for extended field deployment. The board includes a USB-C port with back-feed protection, 22 accessible GPIO pins, and a QWIIC/STEMMA QT connector for plug-and-play expansion with a vast ecosystem of sensors, displays, and actuators.

Key Features

High-Performance ESP32-S3 Core: Dual-core 240 MHz processor with 8 MB flash and 2 MB PSRAM for advanced IoT applications.
Integrated Wireless with Onboard Antenna: 2.4 GHz 802.11b/g/n Wi-Fi with a space-saving 3D antenna eliminates the need for external RF components.
Battery-Optimized Power Circuitry: Dual LDO regulators and an optimized power path support efficient operation from LiPo batteries or USB.
Standard Feather Footprint: Compatible with the wide range of Feather-wing expansion boards for rapid prototyping.
Modern USB-C Connectivity: USB-C port provides programming, serial communication, and power, featuring back-feed protection.
Expansion via QWIIC/STEMMA: I2C connector enables quick daisy-chaining of sensors and peripherals without soldering.
Comprehensive GPIO Access: Breaks out 22 versatile GPIO pins for interfacing with displays, sensors, and other digital/analog components.
Developer Convenience Features: Includes user-programmable RGB NeoPixel LED and status LEDs for visual feedback during development.

Applications

Prototyping low-power Wi-Fi sensor nodes for smart home and environmental monitoring.
Building portable, battery-operated data loggers and IoT edge devices.
Developing interactive prototypes with displays and sensors using the Feather-wing ecosystem.
Creating educational tools and maker projects requiring wireless connectivity and GPIO access.
Implementing mid-complexity IoT gateways or hubs that aggregate sensor data.

Technical Specifications

Microcontroller / SoC	Espressif ESP32-S3 (Dual-core Xtensa LX7)
Processor Speed	240 MHz
Wireless Protocols	2.4 GHz Wi-Fi (802.11b/g/n)
Memory	8 MB SPI Flash, 2 MB PSRAM
GPIO Pins	22
USB Interface	USB-C with Back-Feed Protection
Expansion Connector	QWIIC / STEMMA QT (I2C)
Form Factor	Adafruit Feather Compatible
Antenna	Integrated 3D Antenna
Regulators	Dual 700mA 3.3V LDO
Dimensions (Shipping)	11 x 8 x 2 cm
Weight (Shipping)	0.012 kg

Frequently Asked Questions

How do I program the FeatherS3 Neo and what development frameworks are supported?

You can program the FeatherS3 Neo using the Arduino IDE with the ESP32 board package, Espressif's official ESP-IDF framework for advanced features, or MicroPython for rapid scripting. Connect via the USB-C port, select the correct COM port, and choose 'Unexpected Maker FeatherS3' or a Generic ESP32-S3 board definition. The board supports serial flashing automatically over USB without needing manual boot mode buttons.

What is the power supply range and how do I connect a battery for low-power operation?

The board is designed to operate from a single-cell LiPo battery (3.7V nominal) connected via the onboard JST PH connector or from the USB-C port (5V). The dual 3.3V LDO regulators provide stable power. For lowest power consumption, design your firmware to utilize the ESP32-S3's deep sleep modes. The optimized power path ensures the battery is disconnected from the USB supply when USB is plugged in, protecting against back-feed.

Can I use an external antenna with this board, and how do I access the GPIO pins?

No, the FeatherS3 Neo uses a proprietary, permanently attached 3D antenna and does not have an external antenna connector. For GPIO access, you must solder the provided male headers to the board's edge pads. The 22 broken-out GPIOs support functions like SPI, I2C, UART, ADC, and touch inputs. A color pinout card is included for reference. The QWIIC/STEMMA connector provides a solderless I2C bus for compatible peripherals.