Adafruit HUZZAH32 – ESP32 Feather Board

The HUZZAH32 Feather is an ESP32-based development board, featuring the official WROOM32 module, designed to deliver a seamless development experience. It integrates all the essentials that you love about Feather boards: built-in USB-to-serial converter, automatic bootloader reset, Lithium Ion/Polymer charging capability, and nearly all GPIOs exposed for easy integration with Feather Wings. This Feather is perfect for wireless or Internet-connected projects due to its dual-core ESP32 chip with WiFi and Bluetooth Classic/LE support.

Key features include 4MB of SPI Flash, a tuned antenna, and all necessary passive components for making the most out of the powerful ESP32 processor. It’s part of the Feather ecosystem, so it’s compatible with over 50 Feather Wings, offering endless possibilities for your projects.

The ESP32 brings a significant upgrade over the ESP8266, with more GPIO pins, additional analog inputs and outputs, extra peripherals like a spare UART, dual cores for efficient processing, and a faster clock speed. It’s an excellent choice for developers and makers who need more advanced functionality in their IoT and wireless applications.

However, the ESP32 is still developer-targeted, meaning some peripherals may not be fully documented or bug-free. For instance, while I2C, SPI, and analog reads work under the Arduino IDE, other features are still being refined. As a result, we recommend this Feather for users with some microcontroller programming experience, rather than for beginners.

Key Specifications:

• 240 MHz dual-core Tensilica LX6 microcontroller (600 DMIPS)
• Integrated 520 KB SRAM
• Dual-mode Bluetooth (Classic and BLE)
• 4MB flash (WROOM32 module)
• On-board PCB antenna
• 10 capacitive touch interfaces
• 12 ADC input channels
• 3 UARTs, 3 SPI, 2 I2C, 2 DAC, 2 I2S audio interfaces
• PWM/timer input/output available on every GPIO pin
• SD card interface support, SDIO controller 50 MHz
• OpenOCD debug interface with 32 kB TRAX buffer

The board is fully assembled and tested, with a USB interface for quick use with both the Arduino IDE and low-level ESP32 IDF. Headers are included for easy soldering and breadboard use. Note that a Lipoly battery and USB cable are not included, but they are available separately in the store.

Product Dimensions: 51.0mm x 22.7mm x 7.3mm (2.0" x 0.9" x 0.3")
Product Weight: 6.8g (0.2oz)