Cygnet by Blues Inc
Cygnet is a Feather-compatible STM32-based MCU, and a lower-cost alternative to our popular Swan MCU. Like the Swan, Cygnet is offered in a Feather standard form factor and uses a STM32L4 part while still providing plenty of flash and RAM to run the majority of your Notecard-powered applications.
The board has three independent power options – USB, battery, or line power – and provides a software-switchable 2 Amp regulator for powering external sensors. When operating in its low-power operating mode, the entire Cygnet board draws only 4uA while retaining all of its memory, making it ideal for battery-powered devices.
Cygnet features support for C/C++ and Arduino, and includes a CORTEX Debug connector, enabling the use of debugging frameworks and tooling such as STLink, JLink, OpenOCD, GDB and more. All of which enable both native and custom integrations into advanced development environments such as Visual Studio Code, IAR, and STM32CUBEIDE.
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CircuitPython 10.0.0-alpha.7
This is the latest development release of CircuitPython that will work with the Cygnet.
Alpha development releases are early releases. They are unfinished, are likely to have bugs, and the features they provide may change. Beta releases may have some bugs and unfinished features, but should be suitable for many uses. A Release Candidate (rc) release is considered done and will become the next stable release, assuming no further issues are found.
Please try alpha, beta, and rc releases if you are able. Your testing is invaluable: it helps us uncover and find issues quickly.
Release Notes for 10.0.0-alpha.7
Modules included in this download
analogio array bitbangio board builtins busio busio.SPI busio.UART collections digitalio math microcontroller os pulseio pwmio storage struct supervisor sys time usb_cdcFeatures: Breadboard-Friendly, Feather-Compatible, Battery Charging
Absolute Newest
Every time we commit new code to CircuitPython we automatically build binaries for each board and language. The binaries are stored on Amazon S3, organized by board, and then by language. These releases are even newer than the development release listed above. Try them if you want the absolute latest and are feeling daring or want to see if a problem has been fixed.
Previous Versions of CircuitPython
All previous releases of CircuitPython are available for download from Amazon S3 through the button below. For very old releases, look in the OLD/ folder for each board. Release notes for each release are available at GitHub button below.
Older releases are useful for testing if you something appears to be broken in a newer release but used to work, or if you have older code that depends on features only available in an older release. Otherwise we recommend using the latest stable release.