Most Users here are happy to help, but with this little information it just looks like this.
I tried for a minute or two and then gave up, please do the work for me.
I recommend reading this
so far as I can tell, from the little information you have given, you flashed Espurna to your H801 and could not figure out how to setup everything correctly.
Since I never used Espurna I can not tell you what you have to do/click there to achieve your desire.
But many people here used, are using Sonoff-Tasmota which also supports the H801.
Basic configuration for all new MQTT devices are the same, set up the Wifi connection, Setup the MQTT Broker on the Server, verify the Broker is working, configure the ne MQTT device to use the Broker and then configure openHAB.
Just a simple search for H801 provided 18 results. Did you check this before?
