Feather of the Day: Adafruit Feather STM32F405 Express #Adafruit #Feather
The Adafruit Feather ecosystem is so rich with hardware diversity, we wanted to share them, one each day. Today is the Adafruit Feather STM32F405 Express!
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.
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Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
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Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: Open Hardware is In, New CircuitPython and Pi 5 16GB, and much more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
This board is kind of pricy but that it has a fast processor stm32f405 168 Mhz and can possibly do 100s of Mflops of single precision floating point maths.
And the few features I liked about this board is
– the uSD slot at the bottom, the app runs within the SOC and the uSD can be simply used as external storage, practically a flash drive. with uSD capacities running in gigabytes, this is very significant as a logger etc
– other things good about this board is the lipo charger and connector
– and more the on board external flash etc, probably unnecessary but may be useful at times.
This board is kind of pricy but that it has a fast processor stm32f405 168 Mhz and can possibly do 100s of Mflops of single precision floating point maths.
And the few features I liked about this board is
– the uSD slot at the bottom, the app runs within the SOC and the uSD can be simply used as external storage, practically a flash drive. with uSD capacities running in gigabytes, this is very significant as a logger etc
– other things good about this board is the lipo charger and connector
– and more the on board external flash etc, probably unnecessary but may be useful at times.