A few people have expressed interest in my indoor, semi-automated growing setup so here's the lowdown.. In a corner of my workshop is a cupboard with a footprint of 1.6x1.2m, 2.2m high. This is insulated with a mixture of glasswool, foam board and expanding foam (depending on what I could install where), and lined with diamond pattern aluminumised mylar (the diamond pattern provides diffuse reflection to avoid hotspots).

Inside the cupboard I have 750W of full-spectrum LED lighting, a 500W oil-filled radiator, and a small fan to keep air moving around. There's a vent which pulls air from the outside and a extractor fan which also vents outside. Being able to pull cool air from the outside (even in summer) is extremely useful as the lights can put out quite a lot of heat.

My main growsystem is an Amazon low-pressure aeroponics system, and I've also got some airpots to do some soil-based growing in. Aero on the right, pots on the left. If you're not familiar with aeroponics, it's a system where the plants roots hang in open space and nutrient-rich water is sprayed or misted over them. High-pressure aero uses mist and low pressure uses sprayers. High pressure aero is currently one of the best known ways to maximise plant growth but low-pressure is pretty good too and you don't need anywhere near as much gear like pressure vessels and solenoid and so on. I just have an aquarium pump which drives the sprayers. In my experience aero is considerably more efficient than soil, non-soil media or other hydroponics - but on the other hand it's very twitchy. If your nutrient balance is off or your pH is wrong or worse, you pump fails - things can go wrong very quickly.

The airpots are totally new to me. People say they're good but I have no idea. I have a mixture of compost, perlite and coco coir to go into them so we'll see how that works out. I'm going to use organic nutrients only on them, I have some seaweed derived stuff which should be good throughout the entire grow process.

So that's the hardware, now on to the fun bit - the automation...

On top of the cabinet is a board hosting a Raspberry Pi model A - these days I'd use a Zero W but they didn't exist when I built this. In it's mostly-bare state the board looks like this. Quick explanation - the red board is mains-rated relays which let me switch the connections above it on and off using the Pi. This is where the lights, fan and heater are wired to. The small junction block left of the relays is connected to mains.

The block up and left of the Pi is 5V, which drives the Pi, the relay control electronics and provides power to the junction block on the right. There are various sensors wired in to that block and connected back to the Pi.

Wired up on my bench for testing it looks like this, and in situ it looks like this (this was on a previous iteration of the cupboard but it's basically the same now). The orange cables on the left are lights, fan and heater. The black cables top are the sensors.

Temperature is monitored using five DS18B20 sensors, which are cheap and reasonably accurate serial devices so you can run a whole bunch of them off a single pin on the pi. I monitor my water temperature, the temperature at the plant stem, at the wall, inside my workshop (but outside the cupboard) and outside temperature. The wall/stem temperature is the important one, that determines whether heating or cooling is engaged. I monitor the exterior and interior temperatures to know how effective my insulation is being. If water temperature gets too high I might add an agent which protects against microbial infections that like warmer water.

I do have a DHT22 humidity sensor but they're hella flaky and it's currently not working. I will replace it at some point but past experience suggests humidity is high whatever I do.

The Pi has a python script which runs every five minutes. It reads all the sensors, decides what (if anything) to do, then logs everything in a sqlite database. If it's 'night' (which is actually day outside, for temperature management reasons) it turns the lights off, if it's 'day' it turns them on. If it's cold it turns the heater on, if it's hot the fan. There's a bit of smartness where it actually aims for a midpoint of temperature because otherwise it's always aiming for highest temperature then immediately cooling again, then heating and so on - a stable temperature is better for the plants. At 'night' I tend to run the fan to drop the temperature: plants often like it cooler during darkness, get some fresh air in and attempt to lower the humidity a bit.

There is a web interface which lets me see what's going on - current temperature and status, plus some lovely lovely charts (who doesn't love a nice chart?). I can also turn the lights out from here in case I need to go in an do some maintenance for anything. 750W of LED light is painfully bright, it's much more comfortable (and safer!) to turn them off while topping up reservoirs or changing water or whatever.

It would be relatively trivial to add sensors for moisture or pH to add an auto-watering or auto-adjusting nutrient systems, but I haven't felt the need to do that yet.

Happy to do my best to answer any questions anyone has.

What have you been watching and reading this week? You don't need to give us a whole essay if you don't want to, but please write something! Feel free to talk about something you saw that was cool, something that was bad, ask for recommendations, or anything else you can think of.

If you want to, feel free to find the thing you're talking about and link to its pages on Anilist, MAL, or any other database you use!

Consider three examples:

1. I am a farmer. I have a piece of land that can grow just enough potatoes to feed me. I work this land, I gather potatoes, ad nauseam.

2. I am a farmer, but this time I have ten times the amount of land. I hire four workers and also work myself. Together we grow enough potatoes to feed all of us, and we also have a surplus. I sell this surplus potato for ¤5000. I am a greedy man, so I take ¤3000 for myself and give ¤500 to each of my workers.

3. The situation is the same as in 2, but this time I am a just man. I share the money equally, so everyone including myself gets ¤1000.

It seems to me that in the first case the land can be considered personal property, since there is no exploitation and no surplus is generated. In the second example the land is clearly a piece of private property, because I use it to exploit other people, taking most of the profit for myself.

But what about the third example? On one hand, the profit is distributed equally, so there is technically no exploitation, right? On the other hand, I am alienated from the workers, because I still have the power to fire one of them (or all of them if I know I can replace them) or to distribute goods unfairly (even if I don't do that). What is the Marxist point of view here?

This is going to sound like a total rant, but I just don't know what to do anymore. I've been completely screwed by OnePlus and they really just don't care. I bought a OnePlus 6T back at the end of November and received it in early December. It has barely worked for about two weeks since then. The ticket I have open with them is ridiculously long. And then they just went dead silent on me. I assumed I was being ignored. I even got the perma-hold ignore on the phone too. But today OnePlus finally replied after 27 days!! During all this time I just went out and bought a Pixel 3XL and I am tickled pink with it.

If anyone wants a good laugh at my expense you are welcome to read my story on my site read my story on my site.

From the bottom of my heart - be careful spending your money with OnePlus.

*edit - formatting

There are loads of music streaming platforms to choose from and I'm curious why you decide to use your current one.

I see most people use Apple Music and Spotify but other platforms seem convincing like Google Play Music, Deezer, or Pandora.

I feel like it's impossible to remember passwords that are long, random, and unique for every service. I have too many accounts.

On the other hand, I don't like the idea of giving up control of my passwords to a password manager and using the ones it generates and stores. It feels weird that I wouldn't "know" my passwords.

Is this a hangup I should just get past? What do I do if I need to login somewhere but cannot access my password manager?

Blatantly stealing from the excellent post by /u/judah, I figured I'd make a sysadmin version because sysadmins tend to be underrepresented in tech discussions. Please keep your answers as cross-platform as possible without being uselessly generic.

I'll start. Realize that the system is going to go down, and accept that reality. Accept failure. How you respond to failure is how people who aren't sysadmins will see and value you.

I think we can all (generally!) agree that the right-wing is too easy of a target here, and most of us seem to be left-ish. So, waves, what's leftism currently doing wrong, or on track to start doing wrong?

pretty straightforward ask. i have some basic, rusty Spanish (on and off learning) and a bit of Esperanto to my name (currently learning) but not much else

eventually i want to speak French conversationally since my boyfriend can and i think it'd be neat to converse with him in more than English, but that's a long term goal.

What are you reading currently? Fiction or non-fiction, any genre, any language! Tell us what you're reading, and talk a bit about it.

Notes: I could not start the thread yesterday on Friday like I used to, I'm sorry for the delay.

Past weeks: Week #1 · Week #2 · Week #3 · Week #4 · Week #5 · Week #6 · Week #7 · Week #8 · Week #9 · Week #10 · Week #11 · Week #12

My friend and I are considering finishing a prototype of a Reddit app. We've already agreed to the following features on first release (if we keep going).

• Similar urls to current Reddit website (so you can change the URL to reddit.com and see the same page)
• voting, commenting, posting selftexts and links
• Directly uploading image posts may come later if it looks complicated
• Masstagger integrated.
• Dark theme (other options in later releases)
• Primary use case: desktop and mobile web.
• Performance first. Reddit's 1 minute load time on default mobile, missing/broken features on i.reddit.com/.compact, and a few tiny complaints on the desktop site are the primary reasons we are considering writing this app. Native is not in our collective skillsets or radar, so we're going to go the extra mile to make sure the app respects both your time and your battery where possible. We did do some research and found that Reddit has actually been negligent in this regard on mobile web, meanwhile we have years of experience in the subject.
• Mailbox (send/receive messages, orange icon on new message/comment reply/thread reply).
• No infinite scroll
• View source JSON of comments/posts.

What are some features/ideas that members of this community would really like in a Reddit app?