Iam doing project where a ESP8266 microcontroller sends temperature and humidity via MQTT to a PC. Thats the plan. But I need a broker for MQTT. Right?
Does anybody knows a provider where I can create or use a broker online? Like a web interface. I cant install a program local. So the broker cant run local.
I did some research, but I found only options with costs. I want a free 1.
Thnaks for you attention and help.