When the eps8266 enter deep-sleep it will loose connection with server and device will show offline.
have a look at this Battery Powered ESP8266 Temperature/Humidity Monitor with DHT11 - #17 by adam
When the eps8266 enter deep-sleep it will loose connection with server and device will show offline.
have a look at this Battery Powered ESP8266 Temperature/Humidity Monitor with DHT11 - #17 by adam