Adafruit 3405 HUZZAH32 ESP32 Feather Board

Adafruit 3405 HUZZAH32 ESP32 Feather Board Description

The HUZZAH32 is the ESP32-based Feather, made with the official WROOM32 module. Adafruit have packed in everything you love about Feathers: built in USB-to-serial converter, automatic bootloader reset, lithium-ion/polymer charger, and just about all of the GPIOs brought out, so you can use it with any of our Feather Wings.

That module nestled in at the end of this Feather contains a dual-core ESP32 chip, 4MB of SPI Flash, tuned antenna, and all the passives you need to take advantage of this powerful new processor. The ESP32 has both WiFi and Bluetooth Classic/LE support. That means it's perfect for just about any wireless or Internet-connected project.

Because it's part of the Feather eco-system, you can take advantage of the 50+ Wings that Adafruit have designed to add all sorts of cool accessories.

The ESP32 is a perfect upgrade from the ESP8266 that has been so popular. In comparison, the ESP32 has way more GPIO, plenty of analog inputs, two analog outputs, multiple extra peripherals (like a spare UART), two cores so you don't have to yield to the WiFi manager, much higher-speed processor, etc.

Comes fully assembled and tested, with a USB interface that lets you quickly use it with the Arduino IDE or the low-level ESP32 IDF. Includes headers so you can solder it in and plug into a solderless breadboard. Lithium polymer battery and USB cable are not included.

• 240MHz dual core Tensilica LX6 microcontroller with 600 DMIPS
• Integrated 520KB SRAM
• Integrated 802.11b/g/n HT40 Wi-Fi transceiver, baseband, stack and LWIP
• Integrated dual mode Bluetooth (classic and BLE)
• 4MByte flash include in the WROOM32 module
• On-board PCB antenna
• Ultra-low noise analog amplifier
• Hall sensor
• 10x capacitive touch interface
• 32kHz crystal oscillator
• 3x UARTs (only two are configured by default in the Feather Arduino IDE support, one UART is used for boot-loading/debug)
• 3x SPI (only one is configured by default in the Feather Arduino IDE support)
• 2x I2C (only one is configured by default in the Feather Arduino IDE support)
• 12x ADC input channels
• 2x I2S Audio
• 2x DAC
• PWM/timer input/output available on every GPIO pin
• OpenOCD debug interface with 32kB TRAX buffer
• SDIO master/slave 50MHz
• SD-card interface support
• Dimensions: 51.0 x 22.7 x 7.3mm (2.0 x 0.9 x 0.3in.)
• Weight: 6.8g (0.2oz.)

Please note: The ESP32 is still targeted to developers.

Not all of the peripherals are fully documented with example code and there are some bugs still being found and fixed. Adafruit got all of their Featherwings working under Arduino IDE, so you can expect things like I2C and SPI and analog reads to work. But other elements are still under development.

For that reason, we recommend this Feather for makers who have some experience with microcontroller programming and not as a first development board.