DIY graphic / pixel Poi displayed from SD card (with code)

EDIT: incorrect code paste has been corrected (wordpress widget issue), but keeps corrupting. Message me if you can’t get it working.

The Graphic poi (pixel poi) project is now coming to a close. The final stage was to enable the leds to be updated from a series of BMP files held on an SD card. This way, it is possible to hold a large number of images on the device. The poi run off a Teensy 3 micro controller (see the other posts about this). I’m not happy with the result from these WS2811 leds, they give a ‘dotted’ appearance that I can’t do anything about, so I will not be using them further. This is due to how the ws2811 work. Other leds move from one pixel point to the next without this ‘gap’, so they are better suited to POV.

Here are some images and some code to get it all going.

DIY graphic / pixel poi

DIY Gaphic / Pixel Poipattern BMP being loaded from SD cardphotograph of changing from one file to the next

and heres the code:
lots of this code comes from the good people over at the PJRC Forum where all things Teensy can be found. please go over and have a look and a chat if you need some help.