Adafruits Dht library

Sounds like a simple one but I'm struggling to get this right.
Using a esp8266 which runs @ at 80m/c's, a couple of sources say that the callibration constant should be 30, as in:
DHT dht(DHTPIN, DHTTYPE, 30);
Other sources say 11.
I've tried various values and cant get the bloomin thing to work right, on a Dht11, 22 and Am2302.
Has anyone had any experience or success with this, or should I go find another library.

I was reading through the adarfuit library.

It said:

// Initialize DHT sensor.
// Note that older versions of this library took an optional third parameter to
// tweak the timings for faster processors. This parameter is no longer needed
// as the current DHT reading algorithm adjusts itself to work on faster procs.

Click to expand...

dr pepper said:

Using a esp8266 which runs @ at 80m/c's, a couple of sources say that the callibration constant

Click to expand...

Also... I struggled here as the esp8266 is a wifi module?

Just goes to show, open yer eyes and you'll see.
Ok so I need to update my dht library, I assumed it was up to date as I keep checking and updating them periodically, they must have changed the name of the lib for the version your suggesting.
Yep the esp8266 is a wifi module, however the arduino ide has a downloadable compatible compiler for it, so instead of using it the boring way with At commands over serial, you can actually program it directly in C, and for a lot of apps you dont need a second proc, and there are versions such as the esp8266 07 that have plenty of io, and the chip is way more powerfull than an atmega.
The esp8266 also has spiffs, theres a load of unused memory onboard, and spiffs allows you to use it as though it was a Sd card, nifty if you want to host a html webpage.