Dave with a 47k resistor the current at 12 volts is only about 255 Micro amps. I have used this method hundreds of times and never had any problems. The input resistor can be as high as 270K and stil works well.
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Re: Watt's the wattage when used on a PIC?
Dave with a 47k resistor the current at 12 volts is only about 255 Micro amps. I have used this method hundreds of times and never had any problems. The input resistor can be as high as 270K and stil works well.
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