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We have ✅ 7 available of the AF-3405 in our Sydney warehouse. An extra 100 units available with a short lead time.

Express post delivery (2-5 business days)

The Adafruit HUZZAH32 ESP32 Feather Board brings the powerful Espressif ESP32 dual-core processor into the Adafruit Feather form factor. With WiFi, Bluetooth Classic, and BLE support, a built-in USB-to-serial converter, automatic bootloader reset, and LiPo battery charging, it's a fully featured wireless development board that's compatible with the entire Feather ecosystem of add-on Wings.

The WROOM32 module provides a 240 MHz dual-core processor, 520 KB SRAM, 4 MB SPI Flash, and an on-board PCB antenna. The ESP32 is a significant upgrade from the ESP8266, offering more GPIO, additional analog inputs, dual analog outputs, extra peripherals, and two cores for concurrent WiFi and application processing.

Key Features

  • ESP32 Dual-Core 240 MHz – Tensilica LX6 with 600 DMIPS and 520 KB SRAM
  • 802.11b/g/n WiFi – Integrated transceiver with on-board PCB antenna
  • Bluetooth Classic and BLE – Dual-mode wireless connectivity
  • 4 MB SPI Flash – WROOM32 module with tuned antenna
  • Built-in USB-to-Serial – Program and debug over USB with automatic bootloader reset
  • LiPo Battery Charger – Built-in charging circuit for 3.7V LiPo batteries
  • Feather Form Factor – Compatible with 50+ FeatherWing add-on boards
  • Rich Peripherals – 3× UART, 3× SPI, 2× I²C, 2× I²S, 2× DAC, 12× ADC channels
  • 10 Capacitive Touch Inputs – Built-in touch sensing
  • Hall Sensor – On-chip magnetic field detection
  • PWM on Every GPIO – Flexible output control

Ideal For

  • WiFi and Bluetooth IoT projects
  • Battery-powered wireless sensor nodes
  • Expanding functionality with FeatherWing add-ons
  • Upgrading from ESP8266-based Feather projects

Package Contents

  • 1× Adafruit HUZZAH32 ESP32 Feather Board – Fully assembled and tested
  • 1× Header strip (unsoldered)
Note: LiPo battery and USB cable not included. Light soldering required to attach the included header strip. This board is recommended for makers with some microcontroller experience, as not all ESP32 peripherals have complete documentation and example code yet.
Tip: Need a more compact option without the Feather extras? Check out the HUZZAH32 ESP32 Breakout Board for a stripped-down, size-optimised version.

Resources

The Adafruit HUZZAH32 – ESP32 Feather Board appears in the following collections:

SKU AF-3405