I regularly use Wifi ESP8266 to drive some led strips on my mapping installations, when i want the setup to be easy and fast to install.
I find it quite responsive and reliable, enough to use it in live condition to send some effects with no visible latency.
The wifi modules i'm using are these ones:
and using this code:
After few successes running it with around 250 pixels, i am right now doing some tests with leds matrices, to see the limits of these little chips.
You can see the current tests here:
https://www.youtube.com/watch?v=kqBOHhN ... L7OJqfn0BW
So far it is able to handle to run 960 pixels on a single chip, but with some latency (depending on the type of animation i am sending -> between 0.2 seconds and 1.5 seconds). I'm running out of leds for now, but i'm pretty shure the chip can handle more.
I found the latency ok with 512 pixels, enough to work with in live, but i have to continue my tests, i have started yesterday.
I will keep you in touch