Recommendation for an Inexpensive PLC with Mobile HMI App

[BryanG]

Has any of you used a mobile app as an HMI for Raspberry PI?

If you only need something basic then you might considder NodeRed Dashboard.

More difficult to learn, but far more capable than node-red dashboard is uibuilder, which can be added to node-red. The designs are done in html and javascript. The brain of the guy who programmed it seems to run at more than triple the speed of mine And that would be on a good day for me.
https://www.youtube.com/watch?v=NIeJ_VTI3i8
https://www.youtube.com/watch?v=_AFib8OxdSs

 

[(8{)} ( .)]

Hands down Node-Red

 

[az_]

Thank you everyone for all the informative responses. I think I'm leaning towards inexpensive PLCs rather than Raspberry Pi or Arduino. So, if I want to interface a PLC with wifi feature such as Click Plus with an HMI mobile app like HMI Droid, I assume I need some intermediary device that can host an MQTT broker?

I'm also kind of looking for the same and right now thinking of going for CLICK PLUS PLC as it provides MQTT client. I'm on the same boat as you, seeking some advice from experts. This also provides mobile app.

 

[azby]

https://www.ezautomation.net/HMI-PLC-All-in-One/eztouchplc-family.php

Check it out