Prepaid Energy Meter
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Transcript of Prepaid Energy Meter
ADVANCED PREPAID ENERGY METER
(GSM RECHARGE AND AUTO WARNING)
ByVishesh Chanana 04170102810Ravindra Verma 05970102810
Shivam Mehta 03370102810Naveen Singh 06770102810
In this project we will interface digital energy meter to the easy recharge unit and hence convert it into a prepaid energy meter
By using this technology, we will be able to minimize the losses occurred by corrupt employees
This also takes care of the excessive wastage of energy
BRIEFING
5V regulated power supplyMobile signal decoder BCD to Decimal decoderMicrocontroller interfaceLCD interfaceRelay interface circuit Memory interface
PERIPHERALS CAPITALISED
BLUEPRINT
The LCD screen(2 lines and 16 characters) is used for displaying the balanced amount and the units consumed.
The microcontroller AT89C51(40 pin, 128 byte RAM, 4K byte ROM), is used for controlling LCD display, start and stop functions, checking of balance and control the load as per balance.
The IC 8870, is used to provide GSM interface.The IC 74154, a BCD to decimal decoder, is attached
with microcontroller to interface with a dtmf decoder5V regulated voltage supply is used to provide
regulated voltage to the microcontroller
WORKING
SELF EXPLANATORY CIRCUIT