Help microcomputer

[Vaibhav Khanna]

I want to build a device which remains connected to a server(via wifi) when impacted mechanically could send a signal to server and hence to a mobile app. 

I want to set a basic prototype for the same. 

help would be appreciated. 

 

[HarryA1]

This unit will work stand alone (with out a UNO) and has wifi>

https://www.amazon.com/HiLetgo-Version-NodeMCU-Internet-Development/dp/B010O1G1ES/ref=sr_1_22/136-5999016-8336545?ie=UTF8&qid=1496770085&sr=8-22-spons&keywords=arduino+wifi&psc=1

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