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Hi,
I m planning on making a prepaid power system for 90 rooms. The Power can be paid for from the reception and balance is displayed at the reception and in each room.
Could anyone please suggest ideas on how to design the system. I m persnally thinking on making a unit using a 8052 connected to a relay and current and volatge sensors connected to it. Please suggest the way to connect all to the master device at the reception.
Your help will be greatly appreciated
Regards
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