Number of strings / pixels per output ?

[dave21w]

Hi, new here and as usual leaving everything till the last minute 
Anyway i'm building a small megatree, 18 strips of WS2812bs, each strip will be 1.5M long with 90 pixels, I have all my wiring sorted and mounting frame etc but before I begin I have a couple of questions.
Going to be running it using an ESP32 with WLED installed, can I have one single string of pixels which would be 1620 (power injection is sorted) or should I be breaking it up into 2, 3 or 4 seperate strings, obviously I can enable more outputs in the hardware setup on the ESP but need to make sure I get the hardware setup and build right before moving on to xlights integration.

Thanks
Dave

[Gilrock]

I'd say the more outputs the better.  How many pixels do you want to die if one goes bad?  Also there is a mathematical limit to the number of pixels that can be sent data during a time slice depending on the frame rate you are running.  I seem to remember somewhere around 600-700 pixels a Falcon board would have to drop from 25ms to 20ms updates and I can't believe an ESP32 could outperform an FPGA device.

[dave21w]

Thanks for the info