Anonymous
Send MIDI to electrical switch 2016-07-22 10:12:01 Post No.1026468
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Send MIDI to electrical switch 2016-07-22 10:12:01 Post No.1026468
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Send MIDI to electrical switch
Anonymous
2016-07-22 10:12:01
Post No. 1026468
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Sup diy. I'm a circuity retard, go easy on me.
I've had a stupid kid's toy for the longest time and it was just collecting dust in my basement. It's a series of four lights connected to a controller box, and when powered on, one light is lit up at a given time. The controller box has a microphone that will progress which light is lit up based on the sound it hears (bass notes / kicks / etc). After taking a pair of wire cutters to the mic wire and touching the wires together (without the microphone sensor in the line), upon releasing the wires from contact, the lights progressed.
I'm wondering if there's a way to send MIDI notes to a channel and have it act as a switch for that wire, so each note sent to it will progress the lights by one step. Obviously USB to MIDI out interfaces already exist, so I'd like to know how to use one of those (or something like it) to achieve that result.
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>>1026468
Relay would work if you don't need high speed. If you do, try a BJT, or if you need more power, a MOSFET
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>>1026500
Excellent, so how could I get it working with a MIDI cable running from my computer (USB to MIDI) to the relay?
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My roomates and I have a well used front loading dryer that constantly grabs clothes between the drum and the front of the dryer which causes either burn or grease marks and spins the clothing item around, often stretching it. It also sounds like the drum is a bit loose and causes alot of noise.
Looking online it seems like most people get theirs stuck in the lint filter opening, but ours isn't the case.
We'd rather get a repair man or buy a new one only as a last resort. Does anyone know a relatively easy fix to this?
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>>1026405
They do have a set of rollers which will wear out over time, so it might bounce up and down, front and back- which in turn will pinch the clothes. Or its the front seal which is a bit worn out and has a gap, my bet would be worn rollers though
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>>1026413
>front seal
yep
buy a kit that comes with the plastic rim piece, felt, and shims
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Thanks for the input, I'll take a closer look and see which it might be.
Battery-powered lawn and garden tools.
Do they really have the power to replace my 2 stroke and 4 stroke powered trimmer, blower, and mower?
Is now the right time to switch?
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>>1026293
I use the EGO lawn mower and EGO weedeater. I have the rapid charger so the mower battery is ready in 30 mins. If the grass is dry and I have it set at about 1.5", I can mow for about 45 mins. I mowed it the other day when the grass was damp and it gave out in about 30 mins.
The weedeater hasnt ever died on me mid charge. I love them both. Gonna get the edger soon
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They have as much power as an asthmatic chemotherapy patient with anorexia.
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>>1026297
That's funny, because mine cuts just as well as a gas powered mower.
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Alright. Making a start of my outdoor wood fired oven
Materials I have:
Rebar for reinforcing base
24 4 3/8" X 8 7/8" Hard fire brick for oven bottom
36 4 1/2" X 9" Soft fire brick for the vault part
Big bag of vermiculite
2 clay flue pipes.
The base will be cinder block with storage inside for wood etc, one side will be a basalt slab to do food prep on. The vault will be a half pipe and not a dome shape
I probably need some fire proof mortar mix, that sheet insulation material, and a metal frame for the firebrick base
I am missing anything?
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I got the brick today /diy?
Youd better step up if you have opinions
So this board is from an old AT&T handset phone. I noticed that the dip socket has what looks like these ferrite cores that every pin goes through. Does anyone know why that would be?
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>>1026124
i'm surprised there's even a machined socket in there. those phones were made with anything even slightly unnecessary cut out for cost.
was there even a chip in there?
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>>1026175
Yeah there was. When I get home I can see what it was.
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>>1026177
It also has nichicon caps, so cost wasn't apparently an issue
Anonymous
HVAC evaporator freezes, I tried everything, what next? 2016-07-21 16:13:36 Post No.1026122
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HVAC evaporator freezes, I tried everything, what next? 2016-07-21 16:13:36 Post No.1026122
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HVAC evaporator freezes, I tried everything, what next?
Anonymous
2016-07-21 16:13:36
Post No. 1026122
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>few days ago notice weird sound coming from vents
>go down to investigate, the HVAC fan was whistling (??)
>look carefully, refrigerant pipe is frozen
>open the duct and see the evaporator in a block of ice (air passing through small cracks = whistling)
>defrost it, check internet, go though the list:
>clogged air filter
I just changed it
>dirty evaporator coils
they look clean, I can see through the fins
>low refrigerant
had the system checked a few weeks ago - refrigerant was normal
>compressor doesn't stop when the thermostat tells it to
compressor stops
>fan not strong enough
fan is REALLY strong (I can barely keep my head in the duct when it's running)
what now?
I don't feel like spending a few hundred $ just to find out what's wrong
The only thing that (kind of) works is leaving the fan on "ON" (instead of "AUTO") but I still have problems when the system is "in recovery" (in the afternoon when the house needs to be cooled from 82 (day temp) to 72 (evening temp) and the system has to run for 1-2 hours continuously). It would work fine if I were to leave the temp on 72 all day (with fan "ON") but it's a waste of money to cool the house when there's no one home.
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>>1026122
This Old House just covered that a few weeks ago, in that particular case the HVAC was oversized (too powerful) and had to be replaced.
Chek on youtube, that's where I saw it.
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>>1026123
Yeah ... my house is from 1984 but the HVAC is from 2009
I bought the house last year but the previous owner died and his estate lawyer sold the house
This means I have no information about past problems (which should have had enough time to be seen)
I'll have to check the outside unit and compare to the size of the house and see if that's the case.
Then I'll probably have to get a more powerful fan (if possible).
I like cold and getting a SMALLER system is the last thing I'll do
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>>1026122
A frozen evaporator coil means that its getting too cold.
Oversized units that dont get enough airflow over them can do this.
Appropriately sized units with obstructed airflow either in the supply side, or a malfunctioning blower.
Or the unit is low on refrigerant and the low pressure side is too low in pressure.
Call an HVAC guy and tell them your evaporator is freezing over. Common problem
I accidentally spiller some oil based paint down my kitchen sink, the amount that went down probably was no more than 250ml, and I immediately ran the hot water tap for a few minutes.
I noticed the water was slightly slower to go down, and use of a plunger helped that, but now I'm worried about it it potentially making the drain easier to clog in the future, and haven't got a clue how I would remove residual paint from the pipes.
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>>1025991
Pour a little bit of acetone down the drain would be my first idea. If not that. Then a lye based drain cleaner should do it.. Really depends what ur pipes are made of.
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>>1025992
>Really depends what ur pipes are made of.
They are galvanised pipes not PVC, I'm not sure how that affects things
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>>1025995
It means the acetone won't eat through them, if that's something that happens. Not sure what the lye will do to the zinc/zinc oxide though.
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You know what should be a bigger Instructables meme? Wire hangars.
>has decent structural integrity with any kind of decent design
>easy to work with and only requires two sets of pliers to fuck around with
>is a nice heavy gauge single conductor wire for solenoids and heating elements and the like
>is something most people have in their house and don't have to order off Alibaba, unlike mint tins and neodymium magnets
>comes in a variety of vibrant colors to meme out with
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>>1025843
>is something most people have in their house
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I make shit with those all the time, just made a phone holder the other day. I remember seeing on TV African kids making toy guns out of them too, never done that though.
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>>1025868
>African kids making toy guns out of them
Had to be African kids. American kids would be arrested for this.
Hard Drive Guy
Recovering Hard Drive 2016-07-21 01:47:50 Post No.1025793
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Recovering Hard Drive 2016-07-21 01:47:50 Post No.1025793
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Recovering Hard Drive
Hard Drive Guy
2016-07-21 01:47:50
Post No. 1025793
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Hey /diy/. So my hard drive just died, and I
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OP here. 2005 Laptop is being stupid..
I want to know if any of you have experience with DIYing recovering files off a hard drive or even repairing it? I backed up important files (thank god), but I would still like my hard drive back...
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>>1025793
Died how? Clicking of death? Its worth its weight in aluminum then. Otherwise try popping it in the freezer. That might get you a few minutes of use out of it to get some files off. If its just bad sectors use a recovery tool.
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>>1025797
No idea. I restarted my computer, then suddenly it wouldn't boot past the UEFI startup screen. I loaded an alternate hard drive fine, so it isn't my UEFI or motherboard. I swapped the cables, so it isn't the cables. I dusted it, so it isn't the connections either.
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Been getting some pretty fucked up messages sent to a family member from this uk mobile - 07490973104 is there anyway of finding out who this belongs to? Would be much appreciated
Pic for attention
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>>1025787
Call your phone company and have them block the number.
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the subject of the messages makes me want to find out who it is, to find out the truth so blocking would do the opposite
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>>1025787
If its some really nasty harassment you can go directly to the police if there's no joy with the service provider and they'll pursue it
Hey fellas. I posted the other day asking if anyone had experience with PEX. Well after trying to get under the house I've run into a bit of a problem. There's standing water under there that's not draining anywhere. I found pic related that looks pretty much what under my house looks like, except there's a lot more than the little seen here.
The reason I need to get under there is our washing machine isn't draining to the septic due to a break in the line halfway there (which happens to be in the middle of underneath the house). The drain links up with a drain for a tub via a T that it came disconnected so it just drains out the top of that T instead of going any further.
How can I get this water out so I can get under there to fix this shit? I thought maybe I can dig a hole and then dig a trough to drain it. I can't really afford a pump. What are my options? Please help me.
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>>1025719
a trench
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drag a garden hose under there
put end of hose in lowest part
place brick on hose to hold in place
place other end of hose outside at a lower level than water
use wet/dry shop vac to start siphon
wait for water to drain
use heavy cardboard or light plywood or similar material to make a work path for crawling on
get under there and get it fixed
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>>1025728
yeah...
I'm guessing the tricky bit here is finding one.
>place other end of hose outside at a lower level than water
https://www.youtube.com/watch?v=vaho7JSVS1I
putting together one of these should be less than $20, just add a hose to intake water, and a hose on the other end to get it far away from house. or buy one for $30.
also, if you HAVE a shop vac, just use that.
If you can figure out where the water is coming from, stop it, and the water should drain into the ground over a day or two.
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What's the coolest projects you'll done with a MCU?
Also, how do you personally control 7 segment displays? TTL/CMOS, an LED Driver (like MAX7219), charlieplexing, etc.
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>>1025596
cool clock, Ahmed.
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>>1025596
You can get a micro with enough IO, or use multiplexers
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>>1025596
>charlieplexing
7seg displays have common anode or common cathode so charlieplexing doesn't work. Control multiple 7-segments like an LED matrix. 7 outputs from your MCU or a shift register to all separate inputs. Turn one on at a time very fast so it looks like a solid light.
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What material is this desk made of?
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>>1025511
laminated particle board
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>>1025511
Pure deskonium.
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Heya diy. My roommate just moved out and I'm moving everything around. I now have freedom with two bedrooms, a kitchen, and living room. Any deep cleaning tips? I spent an hour last night cleaning bath tubs.
I'll be running to the store later for any needed cleaning supplies.
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Also, am I allowed to get new carpet in an apartment I'm renting? After living here for two years now this cheap carpet is starting to get matted.
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>>1025307
No.
But you could always choose to just rip it all up anyways if you aren't scared of your landlord.
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>>1025307
Just get a rug doctor if your worried about that carpet, or just some baking soda for and lye then wet vacuum it up
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Pokemon Go launching in Japan in Mcdonalds.
I would imagine they put pokestops inside all the Mcdonalds so people can sit and play.
Just wondering what is the solution for good GPS indoor for pokemon go?
How do they make the Mcdonalds receive GPS signal inside restaurant where I can sit down and farm the pokestop of that restaurant?
I saw some weekass GPS repeaters on the ebays for cars, which from its advertisement doesnt seem to bridge >3m, and has a signal strength of 1m.
Are there ways to diy a GPS indoor repeater or booster or whatever?
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If your phone isn't adequate I'd start there.
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OP has a very good observation, GPS won't work if the signal is blocked by concrete, even with a good GPS receiver it'll need to be a few meters from a window depending on the height of surrounding buildings
But if I was running the project I'd over come this at the software level with pokemon appearing based on free WiFi unique to McDonald's premises
Interested in seeing some sauce on this
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You phone doesn't only use satellites for determining your position. It also uses cell towers. This is why you don't lose location service under a dense canopy of trees as you would with a standalone GPS receiver.