>>912257 Forgot to add, in terms of purity it goes:
PIC -> STM -> Arduino -> RasPi
In terms of ease of use it goes:
RasPi -> Arduino -> STM -> PIC
I'm a PIC man myself but in fairness I think that's because I got started before the arduino and raspi... Comment too long. Click here to view the full text.
I have never seen a thread about /diy/ related chemistry such as home laboratories, simple experiments, and amateur research.
I was wondering if that is due to either lack of interest or if discussing these things is a violation of the rules. Going to err on the side of caution regarding this until I get some response as to whether or not it's OK to discuss those sorts of things here.
1.) Difficulty obtaining materials due to legal restrictions 2.) There isn't actually that much use for DIY chemistry. Other than household cleaning supplies and soap, I can't even think of anything off the top of my head that I'd need to do any chemistratin' for. Okay, well, I guess actually I made some copper chloride for etching circuit boards, but, other than that, nada. It's a fairly niche topic. 3.) It's kinda dangerous, depending on what exactly you're... Comment too long. Click here to view the full text.
A while ago I found this old old knife on my family's property. I'm trying to remove the rust (which is really thick) with lemon juice + salt and steel wool. I'm having some success, but is there any better way to do this? If anyone knows possibly the approximate age or manufacturer of the thing that'd be awesome.
Hi /diy/ I'm working with gases and pneumatic tanks and I'm wondering if any of you have a lot of experience?
I want to experiment with co2 enriched horticulture.
My plan is to use a 24 oz Paintball tank with a low pressure regulator. The regulator limits the pressure coming out of the tank to 200 psi which is low enough for my electronically controlled gas solenoid to moderate. I want the solenoid to open when the co2 drops below a certain ppm. This is going to be detected using mq-135 gas sensors, one at the top of the enclosure, one at the bottom,... Comment too long. Click here to view the full text.
>>907577 Its readily apparent you have no fucking clue what you're doing.
A 24oz container of CO2 will only take up 13.5cu.ft of space at room temperature and sea level.
Using this small of a tank for anything other than a single plant in a small container would be pointless.
If this is for something hobbyist related, such as a mini greenhouse or the like, you are better off using nature to raise CO2 levels. I have a 25' greenhouse that I put compost piles in during the winter. Put of plenty of... Comment too long. Click here to view the full text.
>>907079 Fun gimick for hardware reviewers. Not really practical for people.
You still need a radiator. The performance gain the reviewers see is from the huge sink it is. Once its at capacity its not much better than water cooling.
You're also not running up against any sort of performance wall with air cooled boards any more. This might have a use if you need to get one more .1v out of your cpucore to get another 200mhz. Realistically that's not a worthwhile gain and you could probably get it by just... Comment too long. Click here to view the full text.
>>907093 I did it. It was cool. Had a small fish tank with a rounded front sitting around. The oil was very expensive, though. Wouldn't do it again, although it cooled the components fairly well. It's too risky with kids, and I can't fathom submerging expensive parts in it.
Hi guys. I'm wondering how to make a display where 3 or 4 leds slowly fade in and out. I'd like a blue, white green and red one and I'll have them behind some acrylic to wash the light a bit. What I'm wondering is, if its not possible to do this with single components. What about a arduino type thing ? I don't really want to learn or buy an arduino. So I was wondering is there some little chip one can programme and put on a breadboard that could achieve this task ?? Many thanks..
Arduino is complete overkill for a project like this so you're right to look for something else. Any low end microcontroller like something from the PIC12F or an Atiny families more than enough. You can implement PWM LED fading in software on any digital output, it doesn't have to be an "analog" (PWM) output.
> inb4 somebody tries to start a PIC, AVR, ARM debate.
One of the reason the Arduino is popular is because it can be programmed just by plugging the USB cable into your computer. Most dev boards come with bootloaders... Comment too long. Click here to view the full text.
There's nothing really wrong with Arduino, while it's certainly overkill for the application, it's still a good learning tool as long as you realize that Arduino should just be a stepping stone towards pure AVR or other platforms. Nothing wrong with either of them. The thing you quickly need to realize is that 'Arduino' is really just the ATMega mounted on top of a vastly overpriced board, if you go the Arduino route, first up buy a Chinese one, such as Funduino, it's much, much cheaper than straight Arduino and works just as well. The let's... Comment too long. Click here to view the full text.
I'm looking to get a kickass turntable this Christmas, which makes this piece of junk obsolete. So, I'm going to completely dismantle it and rebuild it. I'm going to 86 the speakers and make it so I just plug it in via aux. I know the whole player is shitty, i just want to make something interesting looking. Has it been done before? Can I see some builds?
>>911071 >I know the whole player is shitty, i just want to make something interesting looking. Interesting idea, but I'm not sure if I'd even bother to go that far with it. Even with the guts ripped out, these made in China Crosleys are only good for firewood.
Just my opinion, but try checking out a nice turntable from the 70's era. Some of the best built equipment comes from the 70's, early 80's. Not sure who makes a really decent turntable these days. Some research will definitely pay off.
>>911087 >1) look for a belt driven. If the belt isn't showing, then don't get it Nothing wrong with direct drive, though. And a reasonably good belt driven model doesn't necessarily have to have an external belt.
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