so I was able to find a local store where they have DS18 (but what a price, 2,30€ per piece, on ebay I ordered 5 pcs for such a price, and guess what - first I bought I mistakely connected wrong way so there was a little smoke in the room, so I can say I have 1 working DS18 for 4,60€, what a deal, nevermind )
So I started with some tests. It seems I was able to implement proper code for DS18 (right now I am working on ESP8266-12E dev board because it is more comfortable to play with connections on this board, but I guess all what is applicable on 12E is also on ESP8266-01 which I want to use in my final setup). I have to check power consumption of 12E, but I would say it will be higher than 01 model so not so convinient for funal product (guessing)
Code looks like this:
#define BLYNK_PRINT Serial
#define ONE_WIRE_BUS D2
char auth = "xxxxx";
char ssid = "xxx";
char pass = "xxx";
Blynk.begin(auth, ssid, pass);
float temp = sensors.getTempCByIndex(0);
So now I have connection to Blynk and I can see the temp value in the Blynk app on the cell phone. Also I see that deepsleep is working and after I see value in serial monitor ESP goes for 60 secs to sleep.
I tried to implement static IP into this code, but no success, I have seen several syntaxes, but none worked for me. Not sure where I did the mistake.
Anyway I measured time how long after reboot ESP sends first temp value and it seems the time is the same when ESP obtains IP from DHCP or I have on my router set mac reservation for the ESP - around 6 secs time from reboot to get 1st value in both cases
Also what I found out is not to good connection quality between wifi router and ESP - firstly I thought problem is I am too far from the wifi router, but the results were the same when I put ESP next to router. I am not sure if this is problem or why ESP has such a poor pings (see printscreen attached):
So not sure what could be the next steps. Decrease time ESP is alive by static IP in the code? Other code optimalization? Here we come to the point I am total noob
Thank you all