MicroPython Forum (Archive)

Provides an average frequency output of 237 kHz for an expected frequency of 250 kHz. Increasing p_size allow you to get closer to the expected frequency, but uses more memory. By analyzing the frequency spectrum, a second frequency appears at high frequency. It is related to the loop and the size ...

Hiya safetyfactorman, Thanks for sharing your thoughts! I think that micropython is headed towards some kind of relationship with the IEC61131-3 world. I think that if micropython becomes an IEC61131-3 language, that it will revolutionize both the IEC61131-3 standard, and micropython. What leads you...

OK now I am super super interested it appears that RMT should be capable of driving steppers very well. It's one of the use cases I hope it will prove useful for. Driving Neopixels is another... OK a python function can simply generate the step timing needed for the acceleration write it to a list ...

I've created a class to drive multiple stepper axis using RMT. https://gitlab.com/olivier.len02/micropython-multiaxis So far, the max frequency I can rich is around 17kHz. Is there a way to improve the step frequency? You're only using RMT to send a single pulse at a time - see where you're sending...

MCHobby wrote: ↑

Fri Dec 27, 2019 11:20 am

Do you know if the SAMD support will cover the Metro Grand Central? That would be awesome.

The Grand Central M4 Express is a SAMD51 so yes, it will be a goal to make the port work on it! I don't have one so it'll be great if you could test with yours.

I enjoy the SAMD support. It will be possible to upload MicroPython on Feather M0 Express (from Adafruit) instead of CircuitPython. However, it will be necessary to compile the SAMD firmware... I've been able to run the MicroPython SAMD port on a Trinket M0 and an Itsy Bitsy M4. But, to be clear, a...

MicroPython v1.12 is expected to be released within a few days and it'll have littlefs built-in...

The v1.12 release is imminent...

The folks working on the successor to the Propeller - the Propeller 2 - have ported MicroPython to their new silicone and are using it for active development. Lachlan and Brian have given two presentations on their efforts to the Melbourne MicroPython Meetup: https://www.youtube.com/watch?v=Xcm6kVhI...

Hey Paul, please report back - I'd be curious to know what the startup time is on an ESP32 w/o PSRAM. Thanks!