tag:blogger.com,1999:blog-1821739376835446107.post1455739192775255175..comments2010-08-05T11:16:57.525+03:00Comments on Nur's old ideas blog: Water me, Man!!!Nurhttp://www.blogger.com/profile/00077364682813042061noreply@blogger.comBlogger27125tag:blogger.com,1999:blog-1821739376835446107.post-10856084266916183632010-08-05T11:16:57.525+03:002010-08-05T11:16:57.525+03:00I think its a pretty good idea not that there aren...I think its a pretty good idea not that there aren't other sites out there that already do something similar but I think it might catch on here pretty well.louishttp://www.louisvuittonbagmall.comnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-45011127628268276192009-09-22T15:25:07.115+03:002009-09-22T15:25:07.115+03:00i wanted to know the use of the various components...i wanted to know the use of the various components used here<br />1.390 ohm resistance<br />2.1K resistance<br />3.transistor.<br />i also wanted to know which of the 2 resistance acts a sensor??<br /><br />i tried this today and was wondering about the functionality of the components being used..ayshwarya rajagopalanhttps://www.blogger.com/profile/16640169336477241627noreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-66279465456037389402009-06-21T12:59:30.109+03:002009-06-21T12:59:30.109+03:00It would seem that changing (the undefined) distan...It would seem that changing (the undefined) distance between the two probe ends would change the point at which the signal would light the lamp, thereby one could expect that all one would have to do is timed experiments with plants that are expendable to arrive at a probe to probe distance giving the moisture level you prefer to maintain in a given plants soil.<br />Perhaps not. But I'll tryTony Ihttp://www.nwhabitat.comnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-80365889055147274582009-06-11T14:41:01.164+03:002009-06-11T14:41:01.164+03:00This is so great.
Im so bad at knowing when to wa...This is so great. <br />Im so bad at knowing when to water my plans. I love them, i do. Im just so bad with it! <br /><br />I'll definitely give this a go! i have a few plans around the house and a few in the balcony. How long will the battery last you think?<br /><br />Thanks again, this is great.IBM Lenovo Laptop Batterieshttp://www.sparepartswarehouse.comnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-19818888069141300332008-10-03T16:37:00.000+03:002008-10-03T16:37:00.000+03:00but is there any way to track result on a long ter...but is there any way to track result on a long term basis? will the batteries last?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-57902041115405005632008-06-10T18:33:00.000+03:002008-06-10T18:33:00.000+03:00hey anonymous T!thanks for the post.and straight t...hey anonymous T!<BR/>thanks for the post.<BR/><BR/>and straight to the answers:<BR/>1. in order to change the moisture threshold - try playing with the values of the PROBE resistor<BR/>(DO NOT TOUCH THE 390ohm resistor on the transistor's emitter)<BR/>i advise using a Solderless Breadboard - it's good for that.<BR/>and beware of the transistor - it can get REALLY hot (i got a round scare on my Nurhttps://www.blogger.com/profile/00077364682813042061noreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-29884611855409200212008-06-09T07:44:00.000+03:002008-06-09T07:44:00.000+03:00Saw lots of traffic on this when the circuit first...Saw lots of traffic on this when the circuit first got posted but then nothing since then.<BR/><BR/>Hoping to bump this back up as there are a couple of questions that need to get answered.<BR/><BR/>1) what components should you change if you want to vary the moisture level in your plant? (ie. a drier or wetter soil)<BR/><BR/>2) Anyone had a chance to do the p-channel mosfet?<BR/><BR/>I am brand Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-43373595870832476132008-04-04T22:22:00.000+03:002008-04-04T22:22:00.000+03:00Has anyone tried this with the p-channel mosfet wi...Has anyone tried this with the p-channel mosfet with the pull down resistor? If so could you post a new diagram? I've been trying to figure out where the pull down would go for like 3 weeks now. I'm just beginning electronic engineering.Ed Hagopianhttps://www.blogger.com/profile/01502041046154003155noreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-68060503287670502062008-04-04T20:35:00.000+03:002008-04-04T20:35:00.000+03:00Mine is working for a couple of days now on a bran...Mine is working for a couple of days now on a brand new battery. (I'm using an 2N1711 instead of the 2N2222)<BR/><BR/>To bad the soil has to be really dry for the LED to light.<BR/><BR/>If anyone has a schematic with a mosfet I'd definitely try building it.<BR/><BR/>Then if it drains to much power still I'm hooking it to 2 AA rechargeable batteries.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-54912831793776786002008-03-27T22:59:00.000+02:002008-03-27T22:59:00.000+02:00I built a couple of these using parts I had lying ...I built a couple of these using parts I had lying around, and the batteries died overnight.<BR/><BR/>I did swap the 2n2222 for 3904, that might have something to do with it but I don't know for sure what the difference is in these two transistors and I'm way too lazy to look it up. ;) I do want to try it with a mosfet as jeffm suggested.<BR/><BR/>awesome, simple circuit, Nur! thanks for Anonymoushttps://www.blogger.com/profile/01708556702865035027noreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-29154690310693368462008-03-06T20:36:00.000+02:002008-03-06T20:36:00.000+02:00So how long does a batter last?So how long does a batter last?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-38854433213686517892008-03-04T04:11:00.000+02:002008-03-04T04:11:00.000+02:00I have built this, but my only concern is that one...I have built this, but my only concern is that one of the electrodes is being eaten by the electrical chargeJustin Stockinghttps://www.blogger.com/profile/09918686360144244703noreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-12860968941460260472008-02-29T20:46:00.000+02:002008-02-29T20:46:00.000+02:00looks useful to many plants have died under my un-...looks useful to many plants have died under my un-watering handsAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-37245495753819525222008-02-29T02:07:00.000+02:002008-02-29T02:07:00.000+02:00I wonder if it worked?you should have an idea of v...I wonder if it worked?<BR/>you should have an idea of various parameters, like the min-max value of soil moisture wanted and the like. and will it work efficiently with smaller changes of moisture?<BR/><BR/>--Mark.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-89666701048721691822008-02-28T19:13:00.000+02:002008-02-28T19:13:00.000+02:00Very nice! But is it just me, or is this circuit e...Very nice! But is it just me, or is this circuit eating battery even though the LED is not on? (with probes directly connected to each other)Thomashttps://www.blogger.com/profile/10505730008288578183noreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-6538337624744004212008-02-28T10:05:00.000+02:002008-02-28T10:05:00.000+02:00Great concept. Love the idea of a dirt-cheap, dirt...Great concept. Love the idea of a dirt-cheap, dirt-sensing circuit. As someone who could can plead guilty to involuntary plant-slaughter, I can see the utility.<BR/><BR/>Unfortunately, the circuit as drawn is going to consume a little over 7mA in the idle "off" state, which is bound to be a battery-killer. Dead battery could mean dead plant. Consider using a p-channel MOSFET with a multi-megaohm Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-30878538615803746662008-02-28T06:05:00.000+02:002008-02-28T06:05:00.000+02:00that is awesome!how do I make one for my orchids?that is awesome!<BR/>how do I make one for my orchids?sneezyhttps://www.blogger.com/profile/02253819795419912576noreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-3867356226986670452008-02-28T01:43:00.000+02:002008-02-28T01:43:00.000+02:00Hey,Cool idea,I cannot read out the values of resi...Hey,<BR/><BR/>Cool idea,<BR/><BR/>I cannot read out the values of resistors and others, can you please add that too.<BR/><BR/>Keep inventing buddy.<BR/><BR/>Wish you luckAnishhttps://www.blogger.com/profile/00854176372331008437noreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-32941430091567695922008-02-28T00:36:00.000+02:002008-02-28T00:36:00.000+02:00About how long would you say the battery lasts?About how long would you say the battery lasts?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-10948099175169650212008-02-27T23:54:00.000+02:002008-02-27T23:54:00.000+02:00Just took a closer look at your schematics. The tr...Just took a closer look at your schematics. The transistor <B><I>diagram</I></B> is drawn correctly, but you have the emitter and collector <B><I>labels</I></B> swapped.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-37826786943631978692008-02-27T22:43:00.000+02:002008-02-27T22:43:00.000+02:00How does the electric current through the soil eff...How does the electric current through the soil effect the plant? or does it ?AppsByAaronhttps://www.blogger.com/profile/18408066246164061027noreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-72921306368086558232008-02-27T22:22:00.000+02:002008-02-27T22:22:00.000+02:00I should be able to tweak this to work on a pets w...I should be able to tweak this to work on a pets water dish, right?<BR/>I want an audible signal rather than a light though. What would I need to change?<BR/><BR/>Great idea!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-65598119225285904612008-02-27T21:41:00.000+02:002008-02-27T21:41:00.000+02:00Nice!! Simple elegance...One suggestion that woul...Nice!! Simple elegance...<BR/><BR/>One suggestion that would greatly extend battery life:<BR/>Can you use one of the flashing LEDs, with the built-in timing and charge storage cap?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-14246428017066518172008-02-27T21:35:00.000+02:002008-02-27T21:35:00.000+02:00I am trying to read your handwriting on schematics...I am trying to read your handwriting on schematics to get a parts list. Is this what I need:<BR/>3 VDC Battery<BR/>2N2222 transistor<BR/>390 resistor<BR/>1k resistor<BR/>LED<BR/><BR/>Any specs on the LED I need to look for?<BR/>Also, what should I change out if I wanted drier or wetter soil conditions (or possibly something I can set for each individual one I make, I have a ton of plants)? I 2707 Jackson Drivehttps://www.blogger.com/profile/06786573258654285893noreply@blogger.comtag:blogger.com,1999:blog-1821739376835446107.post-31504458195935418932008-02-27T21:20:00.000+02:002008-02-27T21:20:00.000+02:00Hey, Cap'n. I ain't too keen on the idea of elect...Hey, Cap'n. <BR/><BR/>I ain't too keen on the idea of electrocuting my begonia roots. It just seems cruel.<BR/><BR/>But I can get past that- <BR/><BR/>IF you revise the circuit to ditch the LED, and replace it with a digital flash audio player at plays a loud,looped, tinny scream of agony.<BR/><BR/>THAT would make a million dollars. <BR/><BR/>I'd buy five.<BR/><BR/>-BiggsMr. Biggshttps://www.blogger.com/profile/13710739024554489713noreply@blogger.com