Digital pins works. However you need to use native index markers. For example D0 may be D16. You can find relation for your hardware here. For NodeMCU it look like this :
"pins": {
"D0": 16, "D1": 5, "D2": 4, "D3": 0, "D4": 2,
"D5": 14, "D6": 12, "D7": 13, "D8": 15, "D9": 3,
"D10": 1
}Working like charm.
One of my favourite widgets is the Slider and Iâm pleased to say that @saurabh47 has now added a Slider to his Blynk Web Dashbaord.
In the current code the range is set from 0 to 100 but we use a much smaller range in most of our projects. If you have a big range you might want to split the range over 2 or 3 Sliders as itâs difficult to gauge the values in the dashboard. There is a pop up though that indicates the value you have selected.
All tested and working.
Hello All,
How to add other widgets?
Currentlyâ only two widgets are available.
Contribution are highly welcome
Such a good idea, I liked it very much.
I hope it will be developed further.
I think, Blynk founders should also think of having an official open IOT platform on the webâŚ
I find the thingspeak (https://thingspeak.com) cool as an IOT platform. Also Arduino introduced âArduino Cloudâ https://cloud.arduino.cc/
WHY NOT also Blynk IOT platform on the web?
I guess it should be rather easy for Blynk guysâŚ
Soon, my friend, very soon 
When is soon? 
soon is next year
Actually, UI is ready. Now we are fixing old technical debt. Our initial plan was to launch at the September. However, I donât know if we fit this timeline. We will try.
is it available on local server?
No. There is also big chance it will not be shipped within the local server.
what is custom server?
Whats up ?
keep watching and waiting
very soon !
Hi. whatâs up ? 
Still 29 days left 