Search found 554 matches

by racemaniac
Thu Nov 16, 2017 5:13 pm
Forum: Projects
Topic: F405 & F411 versions of the BluePill
Replies: 321
Views: 4648

Re: F405 & F411 versions of the BluePill

nice :)
i hope to soon resume work on this :)
bit of a break now (had some holidays, lots of social events atm ^^')
by racemaniac
Mon Nov 06, 2017 3:01 pm
Forum: Projects
Topic: RGB lightsaber
Replies: 68
Views: 4596

Re: RGB lightsaber

Well done! thanks :) now back to improving my software for the board :) did some test in mixing multiple soundchannels, and it was a bit slow. So now rewriting that part (now working with the i2s in a circular dma loop, and using the xfer half complete & xfer complete interrupts to fill in parts of...
by racemaniac
Sat Nov 04, 2017 6:47 am
Forum: Projects
Topic: F405 & F411 versions of the BluePill
Replies: 321
Views: 4648

Re: F405 & F411 versions of the BluePill

btw, concerning the buttons Squonk, i like the small buttons you linked... but can't find them anywhere on aliexpress or ebay (okay, i could find them from 1 seller at a ridiculously high price more than 1€ a piece) Can we maybe find some buttons that are small enough and that can easily be sourced...
by racemaniac
Fri Nov 03, 2017 4:03 pm
Forum: Projects
Topic: F405 & F411 versions of the BluePill
Replies: 321
Views: 4648

Re: F405 & F411 versions of the BluePill

btw, concerning the buttons Squonk, i like the small buttons you linked... but can't find them anywhere on aliexpress or ebay (okay, i could find them from 1 seller at a ridiculously high price more than 1€ a piece) Can we maybe find some buttons that are small enough and that can easily be sourced ...
by racemaniac
Wed Nov 01, 2017 6:40 pm
Forum: Projects
Topic: F405 & F411 versions of the BluePill
Replies: 321
Views: 4648

Re: F405 & F411 versions of the BluePill

what i also like about the overhang is an easy place to route the 5v around the entire board, and it's easy having these edges where the fill zones can easily go to, when designing the board it made getting the planes get everywhere on the board a lot easier. i was also doubting keeping them, but bo...
by racemaniac
Wed Nov 01, 2017 10:30 am
Forum: Projects
Topic: F405 & F411 versions of the BluePill
Replies: 321
Views: 4648

Re: F405 & F411 versions of the BluePill

Concerning the dual supply: if we don't go for a dual supply, can someone draw me a schematic of what we would replace it by?
by racemaniac
Wed Nov 01, 2017 7:35 am
Forum: Projects
Topic: F405 & F411 versions of the BluePill
Replies: 321
Views: 4648

Re: F405 & F411 versions of the BluePill

Re: 50 mm long board and components in bottom of board I think with too many constraints, the board is going to take months to design and may never get produced. Perhaps move as many as possible to the top without wasting hours of time and potentially adding conflicts to the PCB tbh, personally i s...
by racemaniac
Tue Oct 31, 2017 5:08 pm
Forum: Projects
Topic: RGB lightsaber
Replies: 68
Views: 4596

Re: RGB lightsaber

found some time to assemble the above boards :) looking pretty good :). when doing a full test however i had to put an extra capacitor on the 3v3 rail since the sd card managed to pull enough current to restart the stm32 >_< besides that, everything seems to be working (i still have to test usb, but...
by racemaniac
Tue Oct 31, 2017 5:00 pm
Forum: Projects
Topic: F405 & F411 versions of the BluePill
Replies: 321
Views: 4648

Re: F405 & F411 versions of the BluePill

So, current things we haven't fully figured out yet if i'm following the thread correctly (must admit i currently am not reading every post in the greatest detail ^^'): - try to make the pcb with all components on 1 side (even though i haven't got confirmation yet that it will make a worthwhile pric...
by racemaniac
Tue Oct 31, 2017 3:38 pm
Forum: General discussion
Topic: I2C freezes the STM
Replies: 8
Views: 186

Re: I2C freezes the STM

i don't think there is anything that actually freezes the stm, but there are "freezes" that can be: - the code ending up in an error handler that just implements an infinite loop (but not sure if there are such handlers in the arduino core) - the peripheral ending in an error state, that isn't reso...