hi there
been sometime since i read about ohms law.. looking for a memory boost.
im not an electronic expert but i have a pretty good understanding of the concepts
however, either im tired or just forgot something here
im trying to figure this out.
i have a pic and a sensor
i want the pic to use 3 volts and the sensor needs 5 volts
so, using resistors, what would i do?
i thought i seen a resistor drop voltage calculator or something, can't find it
i need to limit the current on the pic and leave the sensor as is with the 5 volts.
also..
if i left the pic to use 5 volts, would it be less efficient than if it ran at 3?
thanks
clonus
been sometime since i read about ohms law.. looking for a memory boost.
im not an electronic expert but i have a pretty good understanding of the concepts
however, either im tired or just forgot something here
im trying to figure this out.
i have a pic and a sensor
i want the pic to use 3 volts and the sensor needs 5 volts
so, using resistors, what would i do?
i thought i seen a resistor drop voltage calculator or something, can't find it
i need to limit the current on the pic and leave the sensor as is with the 5 volts.
also..
if i left the pic to use 5 volts, would it be less efficient than if it ran at 3?
thanks
clonus