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HELP required - the input of 8051 controller

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Adil Israr

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HELP REquired

HELLO Friends,
I am new here, i have not used microcontroller before. I want to know that how much votage is required for the input of 8051 controller, and how can i conrol relays through it.

I want to control a relay through GSM detector using 8051 controller, detector gives output voltage of 5 to 6V.

Thank YOu
 

Re: HELP REquired

for knowing what operating voltage for 8051 , you need to share part number of it from the specific vendor. it comes in different flavour.
 

Re: HELP REquired

8051 is nowadays just a [micro-] processing core (an instruction set really), integrated into many different microcontrollers from many vendors in many flavors. You’ll need to refer to the datasheet of your specific part to get the info you’re after.
In any case, controlling relays will require some type of interfacing (such as an external transistor, a diode and some resistors, in the simplest case).

Arthur
 

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