Led hoop using fastspi
That’s fantastic! Thank you for sharing 
Out of curiosity - what are the details on it? (what leds, what controller, what extra bits? Anything nifty you learned while doing it? Any feed back on the library itself?
As of right now I’m just using sample code I’m really trying to learn fast SPI but I’m not very good at to be completely honest with you. I’m really more of a hardware type guy coding is never really been my strong point.
Adriuno mini
Lpd8860
4 3.7v batteries
The hardest part so far was trying to get everything to fit in the tube.
I’m not completely clueless when it comes to coding I can edit and manipulate someone else’s code really well but to make my own is really hard.
I’ve been building LED infused walking sticks/spinning staffs for years - and yeah, getting everything to fit in has been a bear The inside of the tube is about 3/4" diameter, has 300 leds, an NRF radio, an accelerometer, and a 4Ah, 6V NiMH battery. The last stick i built before that one had a ~10" strip on one edge with no leds where the battery was, everyone thought the damned thing was a sword laugh - the current one is a bit better off. There’s only about 3" of un-lit space on either end of the staff (but my center of gravity is about 2in off, out of roughly 4’ long) - but it now has 300 leds in it vs. the 40 the previous one had. Still working on diffusion and now that i’ve got the hardware a bit further along, next up will be programming.
There’s so much low level hardware stuff to do with this library (more led chipsets to support, fully supporting Due/DigiX, supporting DMA on teensy 3 and due/digix, etc…) - but mark and I really want to bring the library up to the next level in terms of helping people write led code. I have a whole higher level library for creating/managing/manipulating/layering patterns, arranging blocks of leds, providing oscillators of various types to give values some life, vs. simply static values or ranges, etc… I really can’t wait until I can devote some more time to that layer of the code, not just so that my own projects can stop running test programs, but also so that I can start passing them around to other people to play with as well.
There’s also someone else in this community who has been building an effects library on top of FastSPI_LED as well. That might be worth checking out.
my next project is going to be a set of pixel poi that will be able to display images. I want to add Bluetooth to my hoop and poi so I can load / change effects via a phone but that’s down the road.
I been toying around with making a staff but my budget for lights is slim lol
As is often the case, I failed to copiously document the process of building this version of the walking stick - but it’s a lot more take-apart-able than the last few, maybe I should take it apart and show off the different pieces of it. (I’m particularly proud of the fact that the power switch/recharging port connects to the batteries/rest of the system by plug, and that the micro controller/accelerometer/radio combination connects to the leds and the rest by plug - makes the world a lot easier to swap out/upgrade vs. everything soldered together. Of course, I already want to completely redo how I did that stuff).
I also did not take pictures as I should have but really it’s a very simple project the hardest part might have been the batteries I just used 2 of wire but did not cut them why are the minute the batteries using the solder connector tabs .
Don’t even talk about budgets. That’s my biggest issue here: so many ideas, not enough to get them accomplished. (Though I just placed an order for another 10 meters of LPD8806 strips.) So it’s a (very) slow process, at least for me. That and also the severe lack of time to work on all these projects.
As for POV poi, look at my timeline for some pictures of one I’m working on. It works off of a micro SD card though and you want Bluetooth. So you’ll have to figure that part on your own.
Unfortunately because of my daughter’s marching season, ALL of my projects have been on hold till further notice. It sucks because I really want to finish this and have an end product. I have several folks in town interested, I just don’t have the time. I also wish I had a 3D printer to design some enclosures for the PCB that will go inside the tube.
Ah, to be dreaming …