It may be less fun and about the same price vs labor to just go down to the hardware store and pick up a sprinkler timer system, mine works just fine. -----Original Message----- From: Randy Ott [mailto:randy@THEOTTS.NET] Sent: Wednesday, June 18, 2003 8:21 AM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [PIC]: Emergency PIC application dev Watering the grass is an emergency? Randy ----- Original Message ----- From: "Picdude" To: Sent: Tuesday, June 17, 2003 5:28 PM Subject: [PIC]: Emergency PIC application dev > Need to implement a super-simple sprinkler system really quickly, and since I > don't live at that property, I need a controller. [ My (X10) home automation > controllers are all in storage so I don't have that option easily available.] > > Some quick discussion with a gardening-savvy neighbor gives me a watering > schedule of 3 times per day for, 5 mins each, and only on every alternate > day. The low-cost controllers I can find (up to ~$40 will not do this > easily), so it'll have to be a PIC controller. Woo-hoo!!! > > First thought, no prob, I have been working on a clock w/alarm and other > features, so I'll hack that code/circuit and for now I'll hardcode the > trigger times/days. Yes, I promise I'll do it the correct way later. > > I figure I can actually pull this coding off in a few hours. I'll modify the > buzzer output to drive a relay instead, which'll switch 24VAC to the valve. > Only cost out of my pocket is a 24VAC transformer from Radio Shack, which is > $6. Add the other plumbing, hoses, valves, spray heads, etc and I'm up to > $52 total max. > > But before I start, it seems like this would be a common app. Anyone here > know of such code available on the web? Seems better not to re-invent the > wheel, if this wheel already exists. > > Cheers, > -Neil. > > -- > http://www.piclist.com hint: The list server can filter out subtopics > (like ads or off topics) for you. See http://www.piclist.com/#topics > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.