Arduino Current Voltage Total Energy MAX471 by armelroudaut

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Code for the Max471: https://www.youtube.com/watch?v=T4yyK0G9Zgg Arduino Energy Meter http://www.instructables.com/id/ARDUINO-ENERGY-METER/ Final code: http://www.instructables.com/id/ARDUINO-ENERGY-METER/step10/Data-logging-in-a-SD-card/ I mixed the 2 codes for be able to see how many watts is used since the beginning. Each 1/2 second the sensor take the voltage and amps, calculate the watts and the total, for have a better accuracy we can reduce the delay, take for exemple 1/4 sec, so change 7200 for 14 400(3600 = 1sec so we do 3600*4). It can be used for calculate the battery capacity for exemple : ).