Adafruit Feather STM32F405 Express

Product ID: 4382
$39.95
Qty Discount
1-9 $39.95
10-99 $35.96
100+ $31.96

Description

ST takes flight in this Feather board. The new STM32F405 Feather (video) that we designed runs CircuitPython at a blistering 168MHz – our fastest CircuitPython board ever! We put a STEMMA QT / Qwiic port on the end, so you can really easily plug and play I2C sensors.

This Feather has lots of goodies:

  • STM32F405 Cortex M4 with FPU and 1MB Flash, 168MHz speed
  • 192KB RAM total - 128 KB RAM for general usage + 64 KB program-only/cache RAM
  • 3.3V logic, but almost all pins are 5V compliant!
  • USB C power and data - our first USB C Feather!
  • LiPo connector and charger
  • SD socket on the bottom, connected to SDIO port
  • 2 MB SPI Flash chip
  • Built in NeoPixel indicator
  • I2C, UART, GPIO, ADCs, DACs
  • Qwiic/STEMMA-QT connector for fast I2C connectivity
  • We use the built-in USB DFU bootloader to load firmware. It does not come with a UF2 bootloader.

With CircuitPython basics running on this board, it's fast to get all our drivers working, then use the built in plotter in Mu to instantly get sensor data displaying within 3 minutes of unboxing.

You can use MicroPython, CircuitPython or Arduino IDE with this board, with some caveats. This board and chipset is new so expect rapid developments and updates!

We tested this in Arduino STM32duino with all our FeatherWings and only the RFM69/RFM9x libraries did not work (they are very platform specific). Its an extraordinarily fast Feather, and our first foray into STM32 - very exciting!

https://www.youtube.com/embed/6GXRRuFuFy0

https://www.youtube.com/embed/jV8eq0YJerM?start=306

https://www.youtube.com/embed/-pMvd85atNg?start=99

https://www.youtube.com/embed/CZ6TtvYJTeI

Technical Details

Product Dimensions: 52.0mm x 23.0mm x 10.0mm / 2.0" x 0.9" x 0.4"

Product Weight: 6.2g / 0.2oz

RoHS 2 2011 65 EU Compliant
RoHS 2 2015 863 EU Compliant

Learn

ST takes flight in this fantastic Feather board with STEMMA QT
Take the leap into Real Time Operating Systems with this simple example for the STM32 Feather
Easily make an expandable Sip and Puff using the ST LPS33 sensor, STM32F405 Feather, and CircuitPython
A Controller Area Network connects microcontrollers and sensors together.