Suggestions on final year IoT projects that can be built under 20k ➤ Nep123.com

Suggestions on final year IoT projects that can be built under 20k

I’m from herald College and my first idea got rejected. (It was a electric rc skateboard with an app displaying speed, distance travelled and battery level.). Now I have no idea what to do. I came up with an pesticide spraying robot but the estimated cost went up to 30k. My budget is 15-20k.
I am so clueless and panicking rn.
Please suggest me some ideas for the project.


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