Search found 206 matches

by marfis
Mon Mar 25, 2019 8:31 pm
Forum: General Discussion and Questions
Topic: Comparison of the three Pyboard D models?
Replies: 11
Views: 3153

Re: Comparison of the three Pyboard D models?

@chuckbook you are right, sorry about the noise😃
by marfis
Mon Mar 25, 2019 4:58 pm
Forum: General Discussion and Questions
Topic: Comparison of the three Pyboard D models?
Replies: 11
Views: 3153

Re: Comparison of the three Pyboard D models?

The 723 and 767 both have USB HS. The 722 doesnt. The max observable transfer speed over usb fs is around 6-8Mbit/sec. With USB HS you could peak at 400Mbit/sec but I‘m not sure how fast the pyboard can deliver data with that pace - but it will likely be much faster than FS. On the REPL you probably...
by marfis
Fri Mar 22, 2019 7:43 pm
Forum: General Discussion and Questions
Topic: Pyboard D
Replies: 5
Views: 1658

Re: Pyboard D

dhylands wrote:
Fri Mar 22, 2019 2:35 pm
I just bought some from store.micropython.org
me too 😃
by marfis
Wed Mar 20, 2019 7:23 pm
Forum: Programs, Libraries and Tools
Topic: Fast RGB to HSV (And vice versa) calculations?
Replies: 18
Views: 5028

Re: Fast RGB to HSV (And vice versa) calculations?

mattyt wrote:
Wed Mar 20, 2019 4:05 am

It's possible that it has been added to the ESP32 port since that post but I couldn't find anything obvious in the codebase that made it clear...
according to this
https://github.com/micropython/micropython/issues/4607

it doesn‘t have priority for Damien.
by marfis
Thu Feb 14, 2019 12:08 pm
Forum: Other Boards
Topic: Where can I see the internal reference buffer settings for STM32 in micropython?
Replies: 3
Views: 1346

Re: Where can I see the internal reference buffer settings for STM32 in micropython?

you can always check the HW registers... e.g. stm.mem32[stm.VREFBUF]

assigning 5 for example activates the 2.5v reference
by marfis
Thu Jan 03, 2019 2:35 am
Forum: Other Boards
Topic: NRF52: NFC support?
Replies: 3
Views: 1513

Re: NRF52: NFC support?

thanks for the reply. What if have figured out so far is that nordic has updated their nrfx lib with nfc support. And with some minor mods i was able to compile it with micropython (static assert macros must be defined). Where I‘m stuck at the moment is how to use the different nrfx nfc functions - ...
by marfis
Thu Dec 20, 2018 6:57 am
Forum: Programs, Libraries and Tools
Topic: BMI160 9DOF IMU with pyboardV11
Replies: 7
Views: 2374

Re: BMI160 9DOF IMU with pyboardV11

Do you mean with the bosch sensor? No I cant give recommendations there. The SenseHat though is great value for getting things to work quickly. It may be a bit big though. I‘m not sure if the lsm9ds1 sensor from ST on the SenseHat is a bit outdated now since the board has been around for some time. ...
by marfis
Wed Dec 19, 2018 4:57 pm
Forum: Programs, Libraries and Tools
Topic: BMI160 9DOF IMU with pyboardV11
Replies: 7
Views: 2374

Re: BMI160 9DOF IMU with pyboardV11

I used the 9DOF sensor on the SenseHat and managed to use it together with peters fusion library that you have linked.

viewtopic.php?f=5&t=1693
by marfis
Fri Nov 16, 2018 3:51 pm
Forum: Other Boards
Topic: NRF52: NFC support?
Replies: 3
Views: 1513

NRF52: NFC support?

I wonder if there is some work being done on the NFC support for the nRF52. Other users seems to have asked the same questions so I thought I open a separate topic.

I'm willing to join or help on this issue but need some pointers within the nRF SDK on where / how a possible integration could be done.
by marfis
Fri Nov 16, 2018 3:31 pm
Forum: Other Boards
Topic: [nRF52] How do I increase the amount of flash allocated to micropython's micro file system?
Replies: 8
Views: 2824

Re: [nRF52] How do I increase the amount of flash allocated to micropython's micro file system?

@c45713 The the experiements it was basically found that FATFS on internal flash used a bit to much in overhead, at least for nrf51 and in practice also for nrf52. The findings were that 50 pages had to be reserved in order to even make the FATFS structures, then the file storage came on top of this...