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Adafruit ESP32-S3 Feather with 4MB Flash 2MB PSRAM

Adafruit ESP32-S3 Feather with 4MB Flash 2MB PSRAM

We have ✅ 2 available of the AF-5477 in our Sydney warehouse. An extra 100 units available with a short lead time.

Express post delivery (2-5 business days)

The Adafruit ESP32-S3 Feather with 4 MB Flash and 2 MB PSRAM brings the dual-core ESP32-S3 to the Feather ecosystem with Wi-Fi, Bluetooth LE, and native USB. The 2 MB PSRAM provides extra memory for large data buffers, making it well-suited for CircuitPython or projects that need fast SRAM access alongside roomier PSRAM storage.

Native USB means it can act as a keyboard, mouse, MIDI device, or disk drive without an external USB-to-serial converter. It includes USB-C, LiPo battery charging and monitoring, a STEMMA QT port with switchable power, and a NeoPixel — all in the standard Feather form factor.

Key Features

  • ESP32-S3 Dual-Core 240 MHz Tensilica – Wi-Fi and Bluetooth LE (no Bluetooth Classic)
  • Native USB – HID, MIDI, mass storage, and CDC serial without an external chip
  • 4 MB Flash + 2 MB PSRAM – Extra memory for large buffers and CircuitPython
  • 512 KB SRAM – Fast on-chip memory for performance-critical operations
  • USB-C – Power, charging, and native USB communication
  • LiPo Battery Support – JST connector with charging and battery fuel gauge monitoring
  • STEMMA QT / Qwiic – I2C port with independently switchable power
  • NeoPixel – Addressable RGB LED with controllable power pin
  • Low Power – ~100 µA deep sleep current
  • FCC/CE Certified Module – Compact module with PCB antenna
  • Feather Form Factor – Compatible with FeatherWings

Also Available

Ideal For

  • CircuitPython projects requiring PSRAM for large buffers
  • Wi-Fi and BLE IoT devices with native USB
  • USB HID and MIDI projects
  • Arduino, CircuitPython, and ESP-IDF development

Package Contents

  • 1× Adafruit ESP32-S3 Feather with 4 MB Flash + 2 MB PSRAM
Note: The ESP32-S3 supports Bluetooth LE only, not Bluetooth Classic. For Classic Bluetooth, use the ESP32 Feather V2. LiPo battery and USB cable sold separately.

The Adafruit ESP32-S3 Feather with 4MB Flash 2MB PSRAM appears in the following collections:

SKU AF-5477
by Adafruit