Guru
Joined: 05/10/2019
Location: United KingdomPosts: 9203
| Posted: 03:31pm 24 Sep 2021 |
Yes. :)
If you have, say, a 'mite with an ESP-01 and a touch LCD display you can use it as a controller. Link it to the local wi-fi. Elsewhre, have another 'mite with an ESP-01 and, as long as it's on the same network, that one could be controlled by te first.
Or you could just have a little board with an ESP-01 and some sensors. Leave it to monitor a fish tank via your phone and send an alarm if the PH goes out or the temp drops.
Alternatively, use the connection to the network to connect to internet time or weather servers. Use one as a web server on your network and control it from your phone. There are lots of possible ideas.