sorry i couldn't edit my previous post .. i just forgot to mention that i'm thinking of using an ATX power supply to power the whole project .. and turn it ON/OFF as needed from the back (switch behind the power supply)
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Re: ON/OFF button for PIC16f877a (ambiguity)
sorry i couldn't edit my previous post .. i just forgot to mention that i'm thinking of using an ATX power supply to power the whole project .. and turn it ON/OFF as needed from the back (switch behind the power supply)
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Re: ON/OFF button for PIC16f877a (ambiguity)
Last time I checked, ATX supplies do not have 10V.
If you don't have any need for the pressure sensor to be on without the microcontroller being on as well, then derive the 5V for the microcontroller from the 10V supply in the same way you've derived the 3V from the 5V.
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