I have a hot question for you.
My system consist of:
- raspberry pi 3;
- tablet android;
The aim of my application is the following: raspberry read the data from the ESP8266 (pin status) and displays it on the tablet using a node red dashboard.
My question is: is a router necessary for the communication between the devices (raspberry with ESP8266 and tablet) or can I use an alternative way for example MQTT?
Then I have another question: is possible to pass a tablet parameter (for example the GPS position) to the raspberry? In the detail, instead of use a GPS sensor connected to raspberry, I would use the data from the GPS tablet sensor.
Thanks in advance and have a good week end.