Adafruit ESP32 Feather V2 ships with 8 MB Flash, 2 MB PSRAM, USB-C port, and more

Adafruit ESP32 Feather V2 (aka Huzzah32 Feather V2) is an upgrade to the company’s HUZZAH32 ESP32 Feather, still based on ESP32 WiFi & Bluetooth processor, and designed with the initial goal of replacing the obsolete CP2104 with the CP2012N USB to TLL chip.

But Adafruit ended up doing a complete redesign with extra storage (8MB flash in total), 2MB PSRAM, a USB-C port replacing the Micro USB port, an extra tactile switch, an RGB LED, lower power consumption, and more.

Adafruit ESP32 Feather V2

Adafruit ESP32 Feather V2 specifications:

  • Wireless module – Espressif Systems ESP32-PICO-Mini-02 (PDF datasheet) with an ESP32 dual-core Xtensa processor @ up to 240MHz with 2.4 GHz WiFi and Bluetooth Classic/LE, 8MB flash, 2MB PSRAM, PCB antenna, FCC/CE certification.
  • USB – USB Type-C port for power and programming via CP2102N chipset
  • I/Os
    • 16-pin and 12-pin GPIO headers with GPIOs, analog inputs, I2C, UART, SPI, DAC, etc…
    • STEMMA QT connector for I2C devices, with switchable 3.3V power, so you can go into low power mode.
  • Misc – Reset and User (I38) buttons, charge/user LEDs, NeoPixel RGB LED
  • Power Supply
    • 5V via USB Type-C port
    • 2-pin header for 3.7-4.2V LiPo battery
    • Built-in battery charging when powered over USB-C
  • Power consumption –  As low as 70uA in deep sleep mode as measured with Nordic Power Profiler Kit, 1.2mA in light sleep
  • Dimensions – 52.3 x 22.8 x 7.2mm (Adafruit Feather form factor)

Huzzah32 Feather V2

The extra features are possible thanks to the much more compact ESP32-PICO-Mini-02 (13.2 × 16.6 mm) module replacing the ESP32-WROOM-32 module in the original Huzzah32 ESP32 board. The company did have to switch some pins for I2C, UART, SPI, etc.. so the new board is not 100% firmware compatible, but that’s just a question of changing the pin numbers. Adafruit provides support for Arduino and MicroPython for the board, but somehow CircuitPython is not listed.

Adafruit ESP32 Feather V2 sells for $19.95 plus shipping… when it is in stock, which is not the case at the time of writing.

Via Geeky Gadgets

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3 Replies to “Adafruit ESP32 Feather V2 ships with 8 MB Flash, 2 MB PSRAM, USB-C port, and more”

  1. Is this still the same buggy CP2102N silicon, or has SiLabs fixed it in the mean time?

    When the RX Fifo runs full before stopping RX, it hangs hard. Happens frequently when you have a device on the UART side which pushes data (e.g. GPS/NMEA, serial logger, …) and you close the ttyUSB port. Only way out is a powercycle.

    When you have a device which only sends data on request, and you empty (i.e. read from) the FIFO, the hang does not happen.

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