I have a well-stocked supply of electronic "stuff," so this project won't cost more than about $US 30. I have bi-color (green-red) LEDs, small toggle switches, a few resistors, and wire on hand. I just ordered a heavy-duty case and some contact strips.
Jon: The dilemma you cite -- putting all the bells and whistles in software -- is one that has confounded the auto industry, too. Doing such things in software, you end up with a series of nested menus and a manual in your lap.
True. In a few years we'll probably look for a new car. I hope to find one without all sorts of confounding electronics. I like gadgets as much as anyone, but they shouldn't stand in the way of getting things done as easily as possible.
Good luck finding a car without confounding electronics, Jon. Some of those electronics, though, can be pretty handy. Some are annoying, though. My Taurus locks the backdoors when I turn off the ignition. If I have passangers or packages in the backseat, I have to remember to unlock the doors before exiting the car.
Jon Titus " I like gadgets as much as anyone, but they shouldn't stand in the way of getting things done as easily as possible." I agree. I went all out on a thermostat for my house...all programmable. Well last winter the unit screwed up on me and refused to let me raise the temperature in my house when it got really cold. Luckily I had kept my old unit and just put it back in place. Sometimes all the tech just gets in the way!
Hi, Cadman-LT: A good solution. Lucky you kept your old thermostat. The control signals for heating and air conditioning are just on or off. I suppose a switch would do in a pinch. Turn on the heat when you need it and turn it off when you're comfortable. Not practical at night, though!
Well, Chuck, the UI can be better. I have the same brand of sprinkler system. I find it interesting that the controller box in the picture looks fancier more colorful, but is EXACTLY the same as the one I have. I guess that in a business like this, the core competency is not the controller, but the system parts. There are lots of controller electronics and displays that would make this easy and do what Jon wants. On the other hand, Jon's solution is a good one. We have exactly the same problem.
Charles Murray, you're absolutely right about that.
I own a 2008 Saturn Astra, and I'm completely unable to set the clock without referring to the owner's manual. I can never remember the steps required to get to the clock controls via the car's "Board Computer" and display, because it's not something I need to do very often.
I also own a 2011 Kia Sedona, and it's very simple to set the clock: push the "Hour" button to increment the hours, and push the "Minute" button to increment the minutes. That's the *right* way to design the controls for a car's clock.
I did almost the same many years ago by placing a single switch in the common lead to the sprinkler valves. Where I live, we frequently have a few consecutive days of morning showers. During those days I open the switch thus disabling the valves. During the drier days, I close the switch and watering resumes as programmed. I located the switch indoors to make it convenient. More recently, I replaced the switch with a relay. The relay is connected to a low-power embedded web server. I can now control it from my iPad.
Hi, Ricardo. Most of the solenoid-type valves I'm familiar with include a means to open or close the valve. So we don't need power. Most of the time this manual valve renains closed and the solenoid valve simply bypasses it. Twist on the valve knob and the valve opens. I have 11 zones and don't want to go to three different control boxes in the yard to manually turn sprinkler zones on or off. Also, I like to water the lawn and plants at night when the sun is down and heat won't evaporate the water. We have high water pressure at night. Darned if I'll get up every 20 minutes starting at 2:00 AM to open and close valves.
I read your post about watering @ nite. Here in Fla. the local water authority recommends AGAINST watering at nite on the basis that it can breed lawn fungus. They recommend that sprinkler systems be set for early morning watering only.
Not much fungus to worry about here in Utah where we have low humidity almost year round. The dryness and heat usually causes the lawn to dry completely within a few hours. Of course the local stores sell fertilizer with a fungicide in case someone thinks they have a fungus problem. (I couldn't find a map of lawn-fungus prevalence in the US.)
With average humidity here hovering in the range of 60% to 99.99% from mid-March thru mid-November, I can assure you that "fungus is among us"!!! In fact, IF you've seen some news reports, concerning weathre conditions in the "Liquid" Sunshine State, you're probably aware that our current patterns make us more akin to the monsoon season of S.E. Asia, than the U.S. of A. It's rained very hard at least twice a day now for the past two weeks. And, when I mean very hard, I mean VERY HARD, blindingly teeming rain that lasts for hours, not seconds or minutes!
I work for a large healtchcare system and one of our ongoing challenges is helping nurse users struggle through multiple layers of menus to set up medical equipment. The equipment is designed by people that love technology for people that don't really care about how 'cool' it is; they just want to take care of patients. Simply put, nurses are people focussed, we tend to be equipment focussed.
Perhaps we can all learn a lesson in user interfaces from this.
The issue is appropriate technology. Sometimes that means very little technology at all. If these companies had a brain, they would provide something simple at the same price as now and sell their complicated unit at an additional price. They would limit support issues and make more money.
Engineers are not immune to the "See How Clever I Am" syndrome.
The latest are "smart controllers" that take information like your location, soil type and what plants are in each zone then, based on weather information received via a satellite link, decide when and how long to run each zone.
I don't need that "smart controller" stuff though. All I want is a network enabled controller that I can store, recall and create new schedules through a GUI on any computer or control with an iPhone, iPad or Android mobil device.
I can't understand why Hunter, Rainbird or Toro haven't made that available yet. Seems like a logical step between a manual controller and those "smart controllers".
This post of the RAIN BIRD controller really hits home in a big way. We had a HARDIE controller that performed well for about 15 years before finally giving up the ghost. It had six zone control with a processor, several switches, AND a big dial.
The "beauty" part of this HARDIE controller lied in the fact that even though it had two independently settable ON times (A & C, on one of the switches), you could override this at ANY time or day! So, here in west central Florida, where we are on water restrictions for once per day, once per week, IF the lawn care specialist applied the chemical treatment on an "off" day, it IS permitted to water in per their recommendation.
After the HARDIE unit failed, I purchased a RAIN BIRD @ the local LOWES, installed it & "programmed" it for the time, day, length, etc. However, it is far more "intelligent" & more "sophisitcated", so I cannot OVERRIDE it to accommodate the example described above. When I called the RAIN BIRD hotline, described the revised operation mode, I was politiely told, "Sorry, you can't do that!" IF ONLY I had my HARDIE again!!!! Wish I bought TWO of them 15 years ago!!!!!! I might just throw this one in the garbage & buy one of those "old-fashioned" time clock style sprinkler controllers. No brains!, but they did work forever!!!!
Earlier this week I received an Orbit 12-station slide-switch sprinkler timer from Orbit, a company in North Salt Lake City. It lets people set independent zone times with a slider control for each zone and a slide switch turns each zone on or off. I plan to use it to replace my RainBird timer this weekend and will report back with the results, probably in a separate blog. In the meantime, you can find more information here: http://www.orbitonline.com/products/Timers/02/01/10/700/
Truchard will be presented the award at the 2014 Golden Mousetrap Awards ceremony during the co-located events Pacific Design & Manufacturing, MD&M West, WestPack, PLASTEC West, Electronics West, ATX West, and AeroCon.
In a bid to boost the viability of lithium-based electric car batteries, a team at Lawrence Berkeley National Laboratory has developed a chemistry that could possibly double an EV’s driving range while cutting its battery cost in half.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.