The big feature of the free software, CircuitPython 4.1. is the speed. You can see the box below for more information on the benchmarks we ran but, in short, the new version is quite a bit quicker.
Basic operations, such as floating point and integer arithmetic, were about twice as fast, and it was particularly interesting to see that this performance improvement filtered all the way through to the devices controlled by the board.
We were able to flash NeoPixels at twice the rate using this firmware – we’re particularly pleased to see this, as we’ve run into performance issues running NeoPixel matrixes with CircuitPython in the past.
There are also big performance gains when controlling screens.
While the software has been moving along, so too has hardware support, and there’s now a greater range of supported hardware than ever before.
At the time of writing, there were 62 separate devices on the circuitpython.org downloads page, so there’s a great selection to choose from, if you want to get developing with this language.