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how to sense the status of the device through micro??

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shanthiga

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hi,
pls help to design a circuit. i want to check the status of the devices(light,heater) whether on or off using PIC 18F series mc?
 

u need Light & heat sensors to detect, another way use a current sensor if the current is draining then the Device is working
 

shanthiga said:
hi, pls help to design a circuit. i want to check the status of the devices(light,heater) whether on or off using PIC 18F series mc?
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Frankly speaking i didnt get the idea behind your requirement. Whenever an appliance is powered, you may connect an Indicator bulb across the power line to detect its status. (Wether Powered or Not) Why do you need a micro controller there?...cheers
 

tx to all.. the thing is i want to control the electrical devices remotely as well i need the feedback of their status. so in my GUI i need to show their status...

if i use sensors, then i have to built different ccts for each appliances...how to use current sensor?? is this is the best solution( cost)?
 

four devices..incandescent lamp, heater( <1500W)..mainly for incandescent lamp..
 

instead of using different kind of sensors simply use the current sensors with each device, if the current is flowing it means the device is working thatz it
 

tx a lot .

is it cost too much? is it the best solution? may i know the schematic diagram to control incandescent lalmp( 100W)
 

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