HOME AUTOMATION: Simultaneous Manual and Automated Control

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developing home automation project: far have developed android app , relay controlled circuit along fan dimmers/ speed controller (triac controlled) , works fine.
on minor demonstration, professor asked me develop logic on how control switches both manually , through android app in sync.

currently connecting common of relays 240v ac , load wires no (normally open) pin of relays. thing load wires connected no of switch on switch board gets 240 v if switched on board.
here lies problem:
i can switch on , off app when switch manually off when it's on can't switch off. because getting 240v ac switch board.

is there way can make both manual , relay operation work in sync.
that when switch off or on board/app switches off , on irrespective of how , previous state , source was(app controlled via bluetooth+uno/ manually via switch board).
thanks!

you can use 2 way swich. here diagram. think 1 way swich of house replaced 2 way switch of similar size.


Arduino Forum > International > India (Moderators: Nishant_Sood, jo_v) > HOME AUTOMATION: Simultaneous Manual and Automated Control


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