Flanigan2004
New member
I am trying to build a very large POV(persistance of vision) display and have, as someone who is pretty new to Teensy and Arduino generally, I seem to have bitten off more than I can chew, or at least more than I planned on chewing. Anyways, I have calculated that I need to refresh my 4 118-led-long strips 3280 times per second . You can probably already see the problem here, as that would require a bitrate of over 12mb/s per strip, while the WS28XX can only do 800kb/s. Also, hypothetically, if one were dumb enough to buy 4 ws2812B strips and install them on the giant spinning globe of death they already built, the low pwm rate would look funky in motion (don't ask me how I know )
So, I'm planning to buy some SK9822 led strips(offbrand Adafruit dotstars) and use those as the datarate of 30mb/s is plenty and the pwm frequency is higher. But, I need to drive 4 of them at once and the best solution would seem to be getting them going on a single Teensy 4.0, as then I could potentially use movie2serial to show images on the display, although right now I'm just trying to draw a vertical line. But, simply using FastLED won't work because it's too slow when doing 4 at once. So, what would it entail to modify octoWS2811 to work with SK9822 strips at a higher datarate, and would the Teensy be able to handle the computational load that would generate?
Also, if you have any further comments on my dilemma or a potentially better way of getting this working please let me know.
So, I'm planning to buy some SK9822 led strips(offbrand Adafruit dotstars) and use those as the datarate of 30mb/s is plenty and the pwm frequency is higher. But, I need to drive 4 of them at once and the best solution would seem to be getting them going on a single Teensy 4.0, as then I could potentially use movie2serial to show images on the display, although right now I'm just trying to draw a vertical line. But, simply using FastLED won't work because it's too slow when doing 4 at once. So, what would it entail to modify octoWS2811 to work with SK9822 strips at a higher datarate, and would the Teensy be able to handle the computational load that would generate?
Also, if you have any further comments on my dilemma or a potentially better way of getting this working please let me know.