The FeatherS3 board is an ESP32-S3 development board in the Feather format. It includes a USB-C connector, battery charging, onboard RGB LED, ultra low deep sleep current, dual LDOs, and dual STEMMA/QT connectors. The FeatherS3 uFL comes with a u.FL connector for an external antenna, and the FeatherS3 with onboard antenna comes with an onboard 3d high gain antenna.

The FeatherS3 boards are compatible with all Adafruit and 3rd party Feather wings and shields.

Features & Specifications

• Dual 32 bit Xtensa LX7 cores @ up to 240 MHz
• RISC-V Ultra Low Power Co-processor
• 2.4 GHz Wifi - 802.11 b/g/n
• Bluetooth 5, BLE + Mesh
• 16 MB QSPI Flash
• 8 MB of extra QSPI PSRAM
• 2x 700 mA 3.3 V LDO Regulators
• LDO2 is user controlled & auto-shuts down in deep-sleep
• ULTRA LOW Deep Sleep Current
• USB-C Connector with back-feed protection
• Native USB + USB Serial JTAG
• LiPo Battery Charging
• Low power RGB LED
• VBAT and 5 V Sense Pins
• 3D High Gain Antenna or u.FL connector
• 2x STEMMA QT connectors, 1 on LDO1 and 1 on LDO2
• 21x GPIO including castellated headers
• Feather Format compatibility
• Board Dimensions: 52.3 mm x 22.9 mm
• Max Thickness: 6.6 mm at JST PH battery connector

Feather S3 with onboard antenna pinout

Feather S3 uFL pinout

Documentation

• FeatherS3 Info Page
• ESP32-S3 Getting Started Guide
• ESP32-S3 Datasheet
• Schematic, reference card, and more in the Unexpected Maker ESP32-S3 GitHub Repo

Note: The FeatherS3 uFL does not ship with an antenna. The customer is responsible for choosing and supplying their own 2.4 GHz antenna.