I'm working on a project where I would like to conserve battery=
 power
by turning sensors and a radio module off when not needed. The=
 items
don't require much current, less than 10mA each. I'm interested=
 in
hearing thoughts on the following options:

1) Have the PIC control a small FET to switch device power=
 on/off
2) Power the device directly from a port pin
3) Use a port pin to drive an inverter/buffer which powers the=
 device

The PIC will periodically be in sleep mode.

Tim

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