Remembering that the ideal design has zero parts, I'd suggest powering the part off the port pin. That's assuming the load is less than 25mA (which you say it is), and is a 5V load. For larger loads that are not 5V, I've used the Micrel MIC2514. It's a nice high side switch with overcurrent protection. Harold On Wed, 5 Jun 2002 09:38:08 -0500 Tim McDonough writes: > 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 > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu > > FCC Rules Online at http://hallikainen.com/FccRules Lighting control for theatre and television at http://www.dovesystems.com ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu