WEBVTT 00:00:00.040 --> 00:00:07.560 on our last episode of lus tech disasters one of the custom liquid 00:00:05.319 --> 00:00:12.960 cooled gaming machines in my home rack sprung a leak pouring gallons of water 00:00:10.440 --> 00:00:18.279 over every system beneath it and my initial thought was oh I forgot to screw 00:00:15.160 --> 00:00:20.640 in a fitting but as it turned out 00:00:18.279 --> 00:00:25.760 despite taking precautions to prevent it it wasn't a fitting not being screwed in 00:00:23.160 --> 00:00:31.400 it was a fitting completely corroding off of the block maybe some of the 00:00:28.240 --> 00:00:34.320 metals in our Looper incomp ible nope 00:00:31.400 --> 00:00:39.000 after spending hours inspecting them every other system's fittings were 00:00:36.800 --> 00:00:45.440 spotless not a hint of corrosion to be seen I was so dumbfounded that I turned 00:00:42.079 --> 00:00:47.719 to the YouTube comments for help and it 00:00:45.440 --> 00:00:51.879 actually worked there was a strong consensus on what the problem was so 00:00:50.000 --> 00:00:56.879 today with the help of pulseway who sponsored this video we're going to 00:00:53.320 --> 00:00:59.359 hopefully Rectify this silent killer and 00:00:56.879 --> 00:01:04.080 add a remote monitoring system so that uh if there ever is another leak hey at 00:01:02.120 --> 00:01:09.240 least I'll know about it before I come home at the end of the day and find that 00:01:06.240 --> 00:01:09.240 my computer peed 00:01:17.840 --> 00:01:25.119 itself the first really good Community theory was that the fancy fuel hose we 00:01:22.520 --> 00:01:30.159 were using as our tubing might use steel webbing to reinforce it which could 00:01:27.520 --> 00:01:34.360 introduce galvanic corrosion but this was actually due to a miscommunication 00:01:31.960 --> 00:01:39.720 on my part it's not fuel hose it's a general purpose hose and it uses a 00:01:36.759 --> 00:01:44.759 textile reinforcement rather than steel so we can scratch that one another 00:01:42.640 --> 00:01:49.280 interesting theory was that a micro crack in the delin plastic of the GPU 00:01:47.439 --> 00:01:53.399 block might have allowed the steel screws that hold it down to come in 00:01:51.320 --> 00:01:58.360 contact with the water but a close visual inspection reveals no cracks and 00:01:56.159 --> 00:02:03.200 the threading for all of those screws is completely clean which suggests that no 00:02:00.759 --> 00:02:07.119 corrosion occurred there a third theory was that a flaw in the plating of the 00:02:04.960 --> 00:02:11.280 affected fittings could allow galvanic corrosion to occur with the underlying 00:02:09.399 --> 00:02:17.360 metal which would explain why some of them were eaten While others remained 00:02:13.280 --> 00:02:19.280 perfect but the thing is when you or EK 00:02:17.360 --> 00:02:22.920 in this case is designing anything that involves metal and water galvanic 00:02:21.280 --> 00:02:28.000 corrosion is something that they carefully consider so while the most 00:02:26.120 --> 00:02:32.560 obvious way to avoid corrosion is to never mix Metals there are are many 00:02:30.400 --> 00:02:36.239 metals that are safe to mix especially when they're not directly connected and 00:02:34.599 --> 00:02:41.519 the underlying material of these fittings is brass which if you consult 00:02:39.000 --> 00:02:47.360 this anodic index should be fine with the copper and other metals in our Loop 00:02:44.200 --> 00:02:49.720 should be fine the story changes when 00:02:47.360 --> 00:02:53.879 you apply a voltage and well we obviously weren't intentionally doing 00:02:51.640 --> 00:02:58.959 that when you have a large power draw in one spot like a couple thousand watts of 00:02:56.239 --> 00:03:03.640 computers in a rack and a low power draw in another spot like a couple hundred 00:03:01.400 --> 00:03:07.799 Watts from a pump you're going to end up with a difference in voltage between 00:03:05.599 --> 00:03:13.120 them which accelerates corrosion dramatically and can make compatible 00:03:10.239 --> 00:03:18.560 Metals far less compatible but the good news is for this solution oh boy oh wow 00:03:16.560 --> 00:03:23.400 we don't have to worry about the details this is an isolation Transformer and you 00:03:21.640 --> 00:03:26.879 might be familiar with Transformers you would use one to take like a low voltage 00:03:25.599 --> 00:03:32.760 and make it a higher voltage or vice versa like to run your sewing machine from Asia yeah if you're in a different 00:03:30.840 --> 00:03:38.280 country that's a big one yeah in this case it's 120 volt on both sides you see 00:03:36.080 --> 00:03:42.560 that made in Canada thanks Hammond Manufacturing but it decouples the 00:03:40.120 --> 00:03:47.200 circuit giving us galvanic isolation or preventing a loop so in a 00:03:45.560 --> 00:03:52.000 nutshell we're taking anything that's plugged into this guy and we're giving 00:03:49.239 --> 00:03:56.400 it absolutely no path back to the main panel it's almost like Wi-Fi for your 00:03:54.400 --> 00:04:00.879 electricity I feel like our analogies are making this worse the point is no 00:03:59.079 --> 00:04:05.360 voltage differ fren wrap it before you tap 00:04:03.079 --> 00:04:08.920 it where do we want to put this thing how about how about up here on top of 00:04:06.920 --> 00:04:12.599 the tank the tank full of water I mean it should be fine right yeah I mean 00:04:10.879 --> 00:04:15.959 realistically while we're here I should probably have the pumps running off the 00:04:14.000 --> 00:04:19.680 UPS you'd have to run an extension cord all the way over there conveniently is 00:04:18.160 --> 00:04:22.240 that an extension cord that's all the way right there yeah I really don't 00:04:21.320 --> 00:04:26.440 think that's long enough I don't think it's worse than that yeah I don't think it's long enough look how long that is 00:04:24.720 --> 00:04:29.400 that's a 25-footer it'll work you want to bet everyone's lunch on it if I'm 00:04:28.040 --> 00:04:34.080 right you pay for everyone's lunch if I'm wrong wrong nothing happens fine it 00:04:32.400 --> 00:04:38.479 has to go all the way down to plug into the bottom UPS it has to be managed sure 00:04:37.039 --> 00:04:43.479 he's literally trying to Cable manage it as much as possible to prevent it from 00:04:40.479 --> 00:04:45.960 reaching dude these are so satisfying I 00:04:43.479 --> 00:04:49.840 will admit they are quite good LTT Store.com let's go that might be the 00:04:47.600 --> 00:04:54.639 best thing you've ever done my kid's right there what no he's 00:04:52.840 --> 00:05:00.680 not oh he's somewhere it's going to be so funny when you lose wow it reaches no 00:04:57.960 --> 00:05:05.360 way no way you're buying 's lunch Get Wrecked fine even though I owe him lunch 00:05:03.199 --> 00:05:09.840 technically yeah one of the big things that you guys 00:05:07.960 --> 00:05:12.919 said was hey no matter what caused this problem you should really have 00:05:11.320 --> 00:05:18.080 monitoring in place so that if it were to ever happen again you would know and 00:05:15.320 --> 00:05:23.280 on top of that we can make automation so if there's a leak shut off the pumps 00:05:21.039 --> 00:05:29.120 yeah it's going to be good theoretically everything is fine 00:05:25.759 --> 00:05:30.960 now I mean but maybe but that doesn't 00:05:29.120 --> 00:05:38.039 mean we're going to jop here okay what's next grounding grounding all right 00:05:34.440 --> 00:05:39.400 you're not going out for a week says who 00:05:38.039 --> 00:05:45.680 you going to stop me I have your stepdad's number keyword being 00:05:42.440 --> 00:05:47.560 step are you going to take that he might 00:05:45.680 --> 00:05:50.680 actually see this to take things to another level we're going to follow 00:05:48.960 --> 00:05:56.880 another recommendation that came up a lot in the comments some of you noticed 00:05:52.880 --> 00:05:59.199 that um I never grounded my rack while 00:05:56.880 --> 00:06:03.360 the systems themselves are theoretically grounded using the third prong of the 00:06:01.160 --> 00:06:09.560 plug that we plug into them the rack itself is not necessarily connected to 00:06:06.199 --> 00:06:12.440 ground so we got a whole bunch of these 00:06:09.560 --> 00:06:16.199 grounding leads and then what we just connect these from the back of every 00:06:13.720 --> 00:06:19.319 chassis to the rack uh you could but we also got this here 00:06:19.360 --> 00:06:25.160 catch o uh like a grounding bus bar so 00:06:23.199 --> 00:06:29.759 you just stick that in the rack and then screw all the little thingies onto it C 00:06:26.880 --> 00:06:32.639 man no no we got this we got this okay oh that just barely fits yeah so that 00:06:31.520 --> 00:06:36.960 could go right there it's almost like it's made for a rack naturally we have 00:06:34.720 --> 00:06:40.800 to ground our grounding bar to something for it to work as a grounding bar 00:06:39.120 --> 00:06:44.720 unfortunately the rack is a bit of a ways from the panel and our electrician 00:06:42.560 --> 00:06:48.240 who is going to do this properly for us is unavailable today so instead we're 00:06:46.720 --> 00:06:54.639 going to have to open up the panel and tie the wires directly into the grounding bar it also means I didn't 00:06:50.960 --> 00:06:56.479 have the correct wire so Linus happened 00:06:54.639 --> 00:07:00.520 to have these like two pretty thick gauge wires so we're going to use those 00:06:58.840 --> 00:07:04.879 instead I also didn't have the correct connector so I cut these hammonded ones 00:07:02.840 --> 00:07:09.199 but connected them onto the long wire and now we have the right connector is 00:07:06.800 --> 00:07:15.080 this how you should do this probably not but it's just a ground it's probably 00:07:11.080 --> 00:07:19.400 fine right reys I don't know what I'm 00:07:15.080 --> 00:07:21.479 doing got it hey it worked there we go 00:07:19.400 --> 00:07:24.840 grounded I'm going to let lonus be the one to open the panel and stick his 00:07:22.879 --> 00:07:28.759 fingers in there cuz it's his house uh so we're just going to leave this for 00:07:26.560 --> 00:07:33.319 now Hammond sent us these sick little grounding kits and they have little just 00:07:31.440 --> 00:07:37.639 blade connectors so you hook one side up to the server one side up to the grounding bar and then if you need to 00:07:35.680 --> 00:07:41.360 take the server out for some reason you can easily disconnect it let's try it 00:07:39.120 --> 00:07:46.479 with one of Linus's Nas units here just unscrew 00:07:43.560 --> 00:07:51.159 that look at that wow now we just repeat like 10 times 00:07:49.960 --> 00:07:54.879 while Reese works on getting all the systems grounded let's talk sensors we 00:07:53.360 --> 00:07:59.039 have three different types starting with our leak sensor although calling it a 00:07:56.840 --> 00:08:02.759 sensor might be you know a bit generous this is B basically just like two wires 00:08:01.319 --> 00:08:06.120 you apply voltage to one side and as your leak Bridges the Gap with water it 00:08:04.639 --> 00:08:11.479 creates an electrical connection between the other side and on that side you're just sensing for any voltage so when 00:08:09.919 --> 00:08:15.039 there's no water it should be zero volish and when there is water say if we 00:08:13.919 --> 00:08:18.840 did 5 volts on this side it'll probably show like one or two volts on this side 00:08:17.159 --> 00:08:23.080 so that works and then we've got a flow sensor this one is really just to tell 00:08:20.440 --> 00:08:26.280 us if say the water runs out or the pump stops working which would obviously be 00:08:25.080 --> 00:08:30.199 bad cuz then the water inside the computers would boil which might cause a 00:08:28.080 --> 00:08:34.120 leak this way we can not ify ourselves if the water is not flowing and then 00:08:31.800 --> 00:08:37.159 we've also got a little float switch very simple this one if it's at the 00:08:35.640 --> 00:08:45.200 bottom current passes if it's at the top current doesn't pass so we stick it in the water tank here at the top and we 00:08:41.519 --> 00:08:45.200 can tell if it's full or 00:08:46.040 --> 00:08:53.279 not I you not this is how we're going to test it later but before we can install 00:08:50.680 --> 00:09:00.519 it we have to drain the loop which is going to be interesting this valve is 00:08:56.760 --> 00:09:02.160 open and nothing is coming out I saw a 00:09:00.519 --> 00:09:05.240 comment somebody said they had experience with hose bibs like that and 00:09:03.680 --> 00:09:08.480 they said that some of the manufacturers started using really crappy cheap 00:09:06.920 --> 00:09:11.519 materials in them that are not necessarily compatible with plumbing and 00:09:10.360 --> 00:09:17.560 I just looked up in there and you know what I saw corrosion I read the comment and I was 00:09:15.160 --> 00:09:22.640 like this is too stupid to be true lonus guess what doesn't happen 00:09:20.720 --> 00:09:27.079 when you open this hose bib 00:09:24.519 --> 00:09:32.120 no you're ballsy stick your phone light up there uhoh can you imagine if that's 00:09:29.480 --> 00:09:37.480 literally what caused all of this you've got to be kidding me you know whole room 00:09:34.480 --> 00:09:39.360 water cooling was exactly the same thing 00:09:37.480 --> 00:09:42.880 it was a vendor cheaping out on the parts that Reservoir was supposed to be 00:09:41.720 --> 00:09:48.279 stainless steel I mean you should have ched a plastic one but it wasn't made of 00:09:46.000 --> 00:09:52.279 stainless steel I use a plastic one yeah you also were the one who speced this 00:09:49.959 --> 00:09:55.320 supposedly brass hose bib smart guy so I bought it from a plumbing store so it 00:09:53.600 --> 00:09:59.040 looks like we were both Bamboozled you don't get to be all yeah but at least my 00:09:57.079 --> 00:10:03.600 idea was like a good one it's also good that I got this particulate filter yeah 00:10:01.600 --> 00:10:08.760 I found one that's plastic actually it's uh polypropylene I think nice oh no it's 00:10:06.680 --> 00:10:11.480 polyester it's like a t-shirt basically what are these made of H well those are 00:10:10.480 --> 00:10:15.560 metal but that's the same type that's already in the loop because I don't feel like going to the plumbing store and 00:10:14.120 --> 00:10:21.800 because I don't trust those things ever again I'm going to make my own valve 00:10:17.519 --> 00:10:24.200 I've got a little guy and a little valve 00:10:21.800 --> 00:10:29.079 look I fixed the leak it's going to get water everywhere 00:10:35.680 --> 00:10:42.240 we have to make sure that we put it the right way there's these very helpful 00:10:39.000 --> 00:10:45.000 arrows that I should follow oh look I 00:10:42.240 --> 00:10:48.320 even Drew arrows on the tubes so I just matched the arrow with the arrow and 00:10:46.200 --> 00:10:54.440 then I can't screw it up hey ree you leak tested this filter 00:10:51.440 --> 00:10:54.440 right 00:10:54.959 --> 00:11:00.279 uh filter installed is that closed 00:10:58.680 --> 00:11:03.920 beautiful water in the filter yay the sensors are 00:11:02.720 --> 00:11:08.200 great and all but they don't exactly work without something to read them in 00:11:06.079 --> 00:11:13.000 the past we bought little like relay or input output boards for zwave or Wi-Fi 00:11:11.200 --> 00:11:17.760 on Amazon but if you seen anything about how Linus's Wireless has been 00:11:15.040 --> 00:11:23.000 working I wanted something hardwired and then I stumbled upon a company called 00:11:19.760 --> 00:11:25.639 sequent Micro Systems which sounds super 00:11:23.000 --> 00:11:29.079 nerdy and to be honest it kind of is all they sell are these custom home and 00:11:27.440 --> 00:11:34.320 Industrial Automation boards and this one which is a Raspberry Pi hat just 00:11:31.320 --> 00:11:35.880 plugs into a rasp pie this one has 16 00:11:34.320 --> 00:11:39.880 Universal sensors on it that means we could handle all seven of the gaming 00:11:37.920 --> 00:11:43.040 computers in here for leak sensors we could put a couple on the floor our two 00:11:41.519 --> 00:11:46.880 flow sensors and still have room to spare it was a little complicated to get 00:11:45.360 --> 00:11:50.480 set up but they actually had really good customer service the guy was emailing me 00:11:48.720 --> 00:11:53.680 back within the hour responding and they have a bunch of different boards you get 00:11:51.839 --> 00:11:59.240 ones that have some sensors some power outputs you can get ones that have mosfets you can get ones that have just 00:11:56.600 --> 00:12:03.200 cereal like they make a lot of different different products and it's actually 00:12:00.920 --> 00:12:10.079 pretty awesome this one in particular requires separate power so you plug in a 00:12:06.200 --> 00:12:12.200 5vt power lead here and then it Powers 00:12:10.079 --> 00:12:15.000 the Raspberry Pi through it directly there's also a battery for a real-time 00:12:13.720 --> 00:12:21.279 clock that's on the board that they use for Hardware monitoring so if the Raspberry Pi becomes unresponsive this 00:12:19.079 --> 00:12:23.920 board can reboot the Raspberry Pi it's one of those things where you wouldn't 00:12:22.199 --> 00:12:27.480 really think about it for a house setup but if you were stuffing this in a wall 00:12:25.440 --> 00:12:30.600 somewhere for industrial controls you want to make sure this thing is 00:12:28.600 --> 00:12:34.360 operational if there's an issue it fixes itself imagine if you had like 200 of 00:12:32.680 --> 00:12:37.480 them right in a perfect world I'd just hook that sensor pin right up to this 00:12:36.120 --> 00:12:41.000 board and be done with it but unfortunately Electronics can sometimes 00:12:39.120 --> 00:12:44.120 be a bit more complicated in our case we need to add something called a pull-up 00:12:42.440 --> 00:12:49.199 resistor and that just makes sure that when there's no pulse being sent the 00:12:46.320 --> 00:12:52.800 sensor reads a high signal like close to our voltage around 5 volts if we didn't 00:12:51.320 --> 00:12:58.160 have that the sensor wire can actually sometimes float between ground and 5 00:12:54.600 --> 00:12:59.959 volts which looks a lot like a pulse 00:12:58.160 --> 00:13:03.800 which obviously we don't want the pull-up resistor makes sure it's only 00:13:01.959 --> 00:13:06.920 ever reading the correct value so it's very important to add if you had an 00:13:05.440 --> 00:13:11.279 Arduino that was reading the sensor instead they actually have a pullup pin 00:13:08.839 --> 00:13:14.560 mode which does it on the board but in our case we're just going to add one on 00:13:12.880 --> 00:13:18.560 this breadboard and in the future we'll just solder it into a piece of wire and 00:13:16.079 --> 00:13:18.560 be done with 00:13:22.600 --> 00:13:27.279 it does the flow sensor work uh yeah we 00:13:25.920 --> 00:13:33.399 literally just finished wiring it let me start screen recording here is it in like a home this done or like what is it 00:13:30.519 --> 00:13:38.360 do to control this no it can be if you want right now I just wrote a little 00:13:36.079 --> 00:13:41.639 script um obviously we have to interpret the data cuz all we're getting is pulses 00:13:40.279 --> 00:13:46.560 uh luckily they just give you a formula you take the pulses per second or Hertz 00:13:44.639 --> 00:13:51.560 and divide by 5.5 that's your liters per minute so I made a little script to do 00:13:47.959 --> 00:13:55.120 that cool hey 9 L per minute so we're 00:13:51.560 --> 00:13:57.320 getting roughly almost exactly 50 pulses 00:13:55.120 --> 00:14:02.480 per second 50 HZ that's the heartbeat of the whole setup and then if we go to the 00:13:59.600 --> 00:14:07.720 other sensor which I did flow to it's off right now right no flow oh 00:14:06.120 --> 00:14:12.240 no flow to the pool right now so what we'll do is adjust this script to send 00:14:09.880 --> 00:14:15.959 that data to the pulseway API and then we can make whatever workflows we want 00:14:13.639 --> 00:14:20.040 in pulseway and then on top of that we can just make a little script that sends 00:14:17.880 --> 00:14:23.000 it to home assistant if you want super home assistant also allows like custom 00:14:21.440 --> 00:14:26.120 components so you could have it on your phone now that the pool Loop is refilled 00:14:24.800 --> 00:14:30.160 and running we should be able to take a look at our flow from both of the pumps 00:14:28.399 --> 00:14:33.399 I found this little terminal app called TTY plot and you can Plum data from a 00:14:32.040 --> 00:14:38.279 script to it and it makes a little graph in your terminal it's very cute this top 00:14:35.560 --> 00:14:43.000 one is the local Loop so if I adjust the speed on the pump here right now it's on 00:14:40.519 --> 00:14:49.959 low if we go to High hey look at that this is the 00:14:45.880 --> 00:14:52.519 Outdoor Loop only pushing around 5 L per 00:14:49.959 --> 00:14:58.440 minute which is pretty low and then the indoor Loop seems to hang out around 10 00:14:55.920 --> 00:15:01.800 5 L per minute yeah that's pretty bad oh hey look everything grounded yeah look 00:15:00.120 --> 00:15:06.240 at that it's all grounded you won't be out for weeks we were we were 00:15:04.320 --> 00:15:09.199 overthinking it each of them we just found a screw and put it underneath the 00:15:07.639 --> 00:15:13.600 screw oh that's great uh the only thing is we didn't ground it into the panel yet so it's not technically grounded 00:15:11.839 --> 00:15:18.680 anything right I did run the wire over there oh okay mostly is this you yeah I 00:15:15.880 --> 00:15:22.480 grounded it huh okay we should probably shut the panel off before we open it 00:15:20.519 --> 00:15:28.560 yeah where's the where's the one for this oh this one oh my gosh okay this is 00:15:26.040 --> 00:15:32.440 not an insulated screwdriver and is not rated for electrical work the only 00:15:30.839 --> 00:15:38.399 reason I'm doing this is because this panel is completely off deenergized I do 00:15:36.440 --> 00:15:45.399 not recommend this don't try it at home Etc oh my goodness who put this in here 00:15:42.079 --> 00:15:46.959 this screw is uh it's like it's shallow 00:15:45.399 --> 00:15:54.720 it's just camming out every time can I try to do it hold on hold on we might not even need it my 00:15:50.959 --> 00:15:58.240 God oh my God zero zero okay so 00:15:54.720 --> 00:16:00.319 everything in here is safe I mean well 00:15:58.240 --> 00:16:03.240 we hope the rack is hooked up now see you got a little ground cable going in 00:16:01.720 --> 00:16:06.639 there definitely not spliced inside the panel uh that 00:16:12.759 --> 00:16:18.240 one now that the flow sensors are working let's wire up a leak sensor like 00:16:16.759 --> 00:16:22.040 I mentioned before we have to apply power to one side so we'll plug this 00:16:20.120 --> 00:16:26.120 into 5vt here and then the other side instead of getting a pull up resistor 00:16:23.839 --> 00:16:29.399 gets a pull down resistor it functions in a very similar way but instead of 00:16:27.440 --> 00:16:32.759 pulling the voltage up to your kind of voltage Supply level it's pulling it 00:16:31.199 --> 00:16:36.759 down to zero because the path goes to ground the last thing we've got to do is 00:16:34.360 --> 00:16:44.319 adjust the sensor on the board to be a 0 to10 volt sensor boom we can see that 00:16:39.560 --> 00:16:47.000 it's reading about 0.17 volts when in 00:16:44.319 --> 00:16:52.399 theory nothing is connected okay if I bridge this now with a screwdriver which 00:16:49.120 --> 00:16:54.720 is metal it goes from like 0.1 volts 00:16:52.399 --> 00:17:00.600 right up to 5 which makes sense when I let go there's no path and it reads 0.14 00:16:58.079 --> 00:17:06.120 now we just need to try with some water hey it immediately registered .5 00:17:04.160 --> 00:17:09.839 volts now instead of printing this to the terminal let's send this data to 00:17:07.799 --> 00:17:13.679 pulseway fortunately for us pulseway has a cool feature called custom fields and 00:17:11.480 --> 00:17:18.039 it allows you to attach custom bits of data to systems an entire site you can 00:17:16.039 --> 00:17:20.720 do it globally if you want typically you would use this with their script system 00:17:19.360 --> 00:17:26.280 say if you wanted to store the bit locker keys for all the systems on your network or the Windows licenses or check 00:17:24.600 --> 00:17:29.320 battery data things that you would only need to read like once a day or 00:17:27.839 --> 00:17:33.120 something like that but in our case we want to read these sensors like every 5 00:17:30.960 --> 00:17:36.880 Seconds fortunately they also have an API so we can just edit our little 00:17:35.440 --> 00:17:40.840 script instead of printing it to the console send it to the pulseway API and 00:17:39.160 --> 00:17:44.039 then that'll set the data while I don't technically need the pulseway agent 00:17:42.400 --> 00:17:47.799 running on our sensor Raspberry Pi I'm going to install it anyways cuz then we 00:17:45.520 --> 00:17:51.360 can have monitoring uh obviously if the sensor Raspberry Pi dies that would be 00:17:49.960 --> 00:17:55.320 not great and we'd want to know about that once it is installed it's really easy to connect to the account they 00:17:54.120 --> 00:18:00.679 actually have a command called like pulseway registration just go register 00:17:57.880 --> 00:18:04.600 no proxy C custom server yes and just pops out this big QR code and Bam it 00:18:03.400 --> 00:18:10.559 updates the config file and starts running pulseway we should be able to see it in the pulseway window now hey 00:18:08.000 --> 00:18:14.280 look at that Dreamhouse sensor Pi 4 now let's send some data I went ahead and 00:18:12.600 --> 00:18:18.000 created a couple custom fields in pulse white one for the flow rate of the loop 00:18:16.159 --> 00:18:22.960 inside the house and one for the flow rate of the loop that goes to the pool 00:18:19.640 --> 00:18:24.640 and then when we run this output updated 00:18:22.960 --> 00:18:31.360 count 9.45 and then if we go to the site if we 00:18:28.200 --> 00:18:34.240 go to Sebastian Dreamhouse custom fields 00:18:31.360 --> 00:18:39.559 we can see that it's 9.45 let's see if it stays that way if I go ahead and turn 00:18:36.640 --> 00:18:44.039 the pump down boom 8.72 perfect now we just have to install 00:18:42.240 --> 00:18:48.400 pulseway on some machines so we can make them turn off when bad things happen 00:18:47.120 --> 00:18:52.520 we're first going to make a workflow in pulseway I made one here called shut off 00:18:50.280 --> 00:18:55.200 water cooled computers ideally you would make a system group and then put all the 00:18:54.120 --> 00:19:00.240 systems in it but for now we're just going to use this one which is land five and just set that manually I'm creating 00:18:58.559 --> 00:19:03.360 this is an ad hoc workflow which means you have to manually trigger it but you 00:19:01.760 --> 00:19:07.400 can also set them up to run on a schedule say like every day at 2: a.m. 00:19:05.880 --> 00:19:13.080 or you can set it to run based off of a notification like CPU usage too high or 00:19:09.600 --> 00:19:15.000 disc full then we just say shut down and 00:19:13.080 --> 00:19:19.000 there isn't an option to just shut off computer because this is like an IT 00:19:16.880 --> 00:19:22.480 management solution right generally you don't want to like fully shut off a 00:19:21.039 --> 00:19:27.880 computer because now you can't manage it anymore they do have an option for reboot but we're going to say execute a 00:19:25.480 --> 00:19:32.240 power shell command of shutdown I'm also going to add a send EMA email task if 00:19:29.760 --> 00:19:35.000 the condition check fails because it would be a little weird for this 00:19:33.200 --> 00:19:40.799 workflow to get triggered and then the custom field read a value that's fine 00:19:38.720 --> 00:19:44.880 like you there's something wrong at that point so we should we should get 00:19:42.760 --> 00:19:48.480 notified if that's the case if the flow goes below one liter per minute it 00:19:46.400 --> 00:19:54.000 should shut off land five it should have it should have done it did it do it uh I 00:19:52.200 --> 00:19:58.799 wouldn't say that it's definitely run the you're 00:19:56.320 --> 00:20:03.480 about to be signed out Windows will shut down in less than a minute what no way 00:20:01.679 --> 00:20:08.600 wait it's going to shut down in a minute it says it says less than a minute she's 00:20:06.360 --> 00:20:11.679 shutting down boys maybe I need to adjust that script a little bit to make 00:20:10.080 --> 00:20:17.360 it a little more urgent in terms of the shutting down but not bad yeah and when 00:20:14.840 --> 00:20:21.600 we combine that with the leak sensors basically we can set it so that in the 00:20:19.559 --> 00:20:26.400 event that something goes bad everything shuts off the last part 00:20:24.760 --> 00:20:29.760 of our little Electronics project here is being able to turn the pumps on and 00:20:27.760 --> 00:20:32.720 off so if we detect it leak from one of the leak sensors we can shut off the 00:20:31.480 --> 00:20:42.919 pump and limit the amount of water that gets out and the amount of damage how do you do that with relays each of these is 00:20:37.400 --> 00:20:46.440 a 40 amp 250 volt relay which is way 00:20:42.919 --> 00:20:49.200 overkill for what we need I can just 00:20:46.440 --> 00:20:52.960 plug a Serial cable into this which is in this case an Ethernet cable and plug 00:20:51.240 --> 00:20:57.080 the other side into our sensor board and then control this remotely from the 00:20:55.240 --> 00:21:01.720 raspy and the sensor board that means we can put this right next to the pumps run 00:20:59.000 --> 00:21:04.559 an etherite cable back over here and Bob sh Uncle we can control the pumps 00:21:02.919 --> 00:21:07.640 remotely long term I think we could mount it in the big isolation 00:21:05.960 --> 00:21:11.320 Transformer box that actually has a switch already so we could probably just 00:21:09.360 --> 00:21:16.360 wire this up to the switch but for now we're just going to do this to try it 00:21:13.080 --> 00:21:18.799 this is um not my finest work but I've 00:21:16.360 --> 00:21:22.919 spliced the relay in between the load wire on this power bar and these are all 00:21:21.360 --> 00:21:28.159 connected with won nuts so they should be relatively safe and if we plug this 00:21:25.240 --> 00:21:30.520 in this power bar should not be powered d 00:21:32.279 --> 00:21:37.679 power bar not powered that's good now 00:21:36.159 --> 00:21:44.200 let's plug in the relay board it does need its own source of power specifically 12vt instead of 5vt this 00:21:41.039 --> 00:21:45.360 time so we'll wire that up here there's 00:21:44.200 --> 00:21:50.200 also a few dip switches you want to toggle on this board we enabled TX and 00:21:47.240 --> 00:21:53.200 RX and then the termination switch and then we just did the termination switch 00:21:51.480 --> 00:21:57.240 on this side that's because each of these is the end device if you had a 00:21:55.480 --> 00:22:01.840 bunch in between Daisy chains you would just turn the termination one on on each 00:21:59.679 --> 00:22:05.200 one on the end if the board was mounted directly on the Raspberry Pi we could 00:22:03.240 --> 00:22:08.720 use their command line Library directly but instead since it's going over cial I 00:22:06.720 --> 00:22:12.320 had to turn off the cereal functionality on there so it's just passing through 00:22:10.559 --> 00:22:18.760 and then enable cereal on the Raspberry Pi and in theory 00:22:15.320 --> 00:22:20.880 hey cool you see them 00:22:18.760 --> 00:22:24.559 clicking now we can plug this 00:22:24.960 --> 00:22:32.240 in you ready yeah on see that's l up and 00:22:30.039 --> 00:22:36.840 then we go off now I've just got to make a little script to toggle it based on 00:22:33.919 --> 00:22:40.600 the leak sensor and hope it works so we've done the demo where if the pump 00:22:38.240 --> 00:22:45.440 fails the systems turn off but what we haven't demoed is if a leak sensor gets 00:22:43.080 --> 00:22:50.400 triggered the pump turns off well let's do it okay I'll go lick a leak 00:22:48.240 --> 00:22:55.279 sensor 5 Volt's not going to hurt I've licked a battery before but how many 00:22:52.159 --> 00:22:56.520 amps is it 5 amps it's fine 5 amps yeah 00:22:55.279 --> 00:23:01.080 I wouldn't lick that I'm going to lick it I wouldn't lick that I'm going to do it well make sure you get it on camera 00:22:59.480 --> 00:23:06.360 yeah yeah fine fine I won't lick it I'll just dip it in the water on the floor go 00:23:03.000 --> 00:23:10.000 for it and 00:23:06.360 --> 00:23:12.200 dip oh my God all right we've got a 00:23:10.000 --> 00:23:17.000 light on that same power bar oh well did the flow stop I mean yeah okay now let 00:23:14.799 --> 00:23:22.320 me unlick okay obviously we have to fix up the wiring here a little bit is it 00:23:19.440 --> 00:23:26.279 going and she's gone hey so 00:23:24.320 --> 00:23:30.039 theoretically well there's a lot more protections than there were before most 00:23:28.679 --> 00:23:35.080 of them are just sitting on the concrete floor so if it leaks I'm sure they'll work 00:23:32.640 --> 00:23:39.520 great I have a box we'll put it all in a we'll make it nice you know it also work 00:23:36.760 --> 00:23:43.279 great pway who sponsored today's video you should try a free trial of pway 00:23:41.400 --> 00:23:48.960 today and as a member of our audience you can save 40% on all of pulse's plans 00:23:45.960 --> 00:23:50.559 just go to LMG Dogg lt24 or click the 00:23:48.960 --> 00:23:54.000 link down in the description thank you so much for sponsoring this video 00:23:52.240 --> 00:23:59.080 pulseway is your solution for Remote Management of all manner of systems not 00:23:56.440 --> 00:24:02.600 just janky basement water water cooled ones yeah we built our own monitoring 00:24:00.840 --> 00:24:05.880 system and then used pulseway to do all the system stuff and they have a fully 00:24:03.960 --> 00:24:10.320 featured mobile app so you can diagnose and even fix problems on the go yeah 00:24:08.440 --> 00:24:14.400 like if your pump stops working yeah you'll know even when you're in France 00:24:12.360 --> 00:24:17.799 Windows updates uh temperature monitoring you won't be able to do 00:24:15.720 --> 00:24:20.799 anything about it disc usage monitoring but you'll know no you can call your 00:24:19.080 --> 00:24:25.720 team get them to do well you think I'm going to come to your house and fix your water tooling while you're in France 00:24:23.200 --> 00:24:28.640 it's the pulseway pitch oh that would be helpful