does anyone know of a good/reliable/fast WS2812/neopixel library?
@Makuna is there an example in your lib that's just straightforward "set this neopixel to this color?"
@skorokithakis BTW, my library has its own gitter channel ;-) NeoPixelTest example is the simplest. It has a lot of comments in it. But here is simple one. NOTE that I am using the Dma Method (reliable on esp8266), if you don't know what this is, read the Wiki.
#include <NeoPixelBus.h>
const uint16_t PixelCount = 4;
NeoPixelBus<NeoGrbFeature, Neo800KbpsMethod> strip(PixelCount);
void setup() {
// this resets all the neopixels to an off state
strip.Begin();
strip.Show();
}
void loop() {
delay(5000);
strip.SetPixelColor(0, RgbColor(128,0,0));
strip.Show();
delay(5000);
strip.SetPixelColor(0, RgbColor(0));
strip.Show();
}
And as far as I know, my library is the only one that is stable on the esp8266, there is a Github Issue in the "other" library that is tracking and comparing all the libraries. I haven't checked if its gotten improved.
@Makuna that's great, thank you!
is there a staging json for 2.4.0-rc1 or should I just pull from github?
can someone tell me how to compare a byte array i receive from a socket with a literal string? :/
strcmp()
@martinayotte thanks, it was complaining about unsigned char to const char and making me want to smash the compiler, but it turns out a cast worked
normal
yeah, but very frustrating when you don't know what to do :/
is sscanf available in the stdlib?
can someone tell me what i'm doing wrong here?:
packet is "Params: 100|1000|70"
unsigned int initial, pixelDuration, height = 0;
sscanf((const char *)packet, "Params: %d|%d|%d", &initial, &pixelDuration, &height);Printing the params returns:
0
1073656464
0
hmm, looks like packet isn't what i thought, which is very odd
ah, never mind, i forgot to add
== 0 to strncmp :/