RandomUser 3 weeks ago • 100%
Not sure I understand the problem fully, but you want a circuit to operate when you push the horn button, without affecting the horn operation.
Chances are the relay coil is drawing to much power.
Have you thought about adding a transistor to your circuit? It would draw very little current from the horn circuit but should allow you to drive something else. - such as your relay. It would of course require you to do some electronics.
RandomUser 3 weeks ago • 100%
Remember that you are also interviewing them. They won't expect you to know all the answers, but will want someone that they can work with. If you can, answer questions with the STAR method (situation, task, approach, result), but don't waffle. You can use one piece of experience in a variety of ways: teamwork, research, urgent deadline etc.
It's ok to say that you are nervous, they should try to put you at ease.
You may be asked 'trick questions', these are not usually to to you up but to see how you work an unknown problem. There is no right answer. Not knowing stuff is ok. Not being able to think up a plan is less so.
Remember whatever the outcome, this is really useful experience. See if you can get a site tour, ask about the tech used... You can then add this to your knowledge for later. In my experience, industry is frequently several years ahead of academia so you get a good chance to understand the real world.
RandomUser 2 months ago • 93%
I'd go with a good quality traditional key lock fitted properly in a good door and frame. Security isn't a single point task, it depends on many things so think like a bad person and do what you can to make your property a harder target than your neighbours.
A good lock on a bad door doesn't work, neither does a bad lock on a good door. Everything needs to work together. If you're likely to lose your keys or many people need access a smart lock may be an idea, but good probably isn't cheap. If it's just you and you can keep your keys safe, then I think tried, tested and simple kit is good.
Ultimately though, as ever, it's your risk assessment based on your needs.
RandomUser 2 months ago • 95%
If you watch lock picking lawyer, you may as well just leave it open. Most smart locks seem to prioritise convenience over security. -possibly check that your insurance is happy with a smart lock.
RandomUser 2 months ago • 100%
There's a good chance that it's the capacitors in the PSU that have failed. It's always the caps! Should be a very doable repair.
RandomUser 3 months ago • 100%
Ermmm.... If you use several pins to get the current rating, what happens if one of the pins fails or gets corroded? Won't you risk generating heat? Think I'd prefer nice big connectors for the power and to keep the data lines safely segregated. Depends on your needs and design I suppose.
RandomUser 3 months ago • 100%
It's like everything, practice slowly, get good form wired in, then when you write fast for exams your writing will be worse than normal, but still legible.
RandomUser 3 months ago • 100%
Practice writing slowly and with good form. Write regularly, give yourself practice pieces. At uni you will be writing FAST, so it'll get worse if you don't keep disciplined.
Alternatively, learn to touch type, and type any work you need to hand in. - if your handwriting is so bad, you may want to make your notes legible to yourself for revision.
RandomUser 4 months ago • 100%
Brilliant, many thanks. With all the old phones in my cupboards I'd hoped this was the answer, but it's good to get a second opinion.
I want to store a battery powered device long term (decades) as a reference article, it will never be switched on or charged again. The problem is that it contains a small LiPo battery that will be very hard to remove. Is there likely to be any significant risk I need to worry about? Once depleted will the battery be relatively inert?
RandomUser 4 months ago • 100%
This is very interesting. Have you considered studying social engineering? - I've found SE techniques quite understandable to help form a process to deal with people in a 'useful' way. Many years ago I was sent on a positive influencing course via work and discovered that most NTs can be quite easily manipulated with a few simple tricks. In the end I stopped using them as it felt unfair.
RandomUser 5 months ago • 100%
Butt your enclosure right up against the lock body, then you reduce shearing forces trying to pull it off the door. Extend the pull bar through your enclosure so you still have a manual override.
RandomUser 5 months ago • 66%
While I'm not adverse to home automation, is this something you need in your life, or just want? I like my perimeter security too be simple and tight, extra complications make the security audit much harder.
Will your insurance stand up to home made remote control unlocking?
To answer your question, place the servo in a suitably large enclosure and practically any adhesive should work, e.g. 3mM command strips or even velcro or double sided sticky. When confident that this is what you want, use a screw.
RandomUser 5 months ago • 100%
Aconitum napellus?
RandomUser 5 months ago • 93%
I've avoided the conversation entirely. Ever since the pandemic I've done my own hair with clippers. Made a good enough job of it, even if I've sometimes needed to do a small adjustment the next day.
For a simple style it's not that difficult if you take your time.
RandomUser 6 months ago • 100%
It's a long time since I had one that age but we clearly noticed when the kids had an upgrade and behaviour changed. I'd put it down to him enjoying his new capabilities and being to excited to sleep. Don't think it's a problem, just roll with it, it's not as if it's a toy you can take away!
Have fun, it doesn't get much easier, but it does get different.
RandomUser 6 months ago • 100%
Thought I did so well on my phone. It kept auto correcting code to coffee. Maybe it was telling me something.
Yes, plan for it!
RandomUser 6 months ago • 100%
All the other comments are great advice. As an ex chemist who does quite a bit of code I'll add:
Do you want code that works, or code that works?! It's reasonably easy to knock out ugly code that only works once, and that can be just what you need. It takes a little more effort however to make it robust. Think about how it can fail and trap the failures. If you're sharing code with others, this is even more important a people do 'interesting' things.
There's a lot of temporary code that's had a very long life in production, this has technical debt... Is it documented? Is it stable? Is it secure? Ideally it should be
Code examples on the first page of Google tend to work ok, but are not generally secure, e.g doing SQL queries instead of using prepared statements. Doesn't take much extra effort to do it properly and gives you peace of mind. We create sboms for our code now so we can easily check if a component has gained a vulnerability. Doesn't mean our code is good, but it helps. You don't really want to be the person who's code helped let an attacker in.
Any code you write, especially stuff you share will give you a support and maintenance task long term. Pirate for it!
Code sometimes just stops working. - at least I'm my experience. Sacrifice something to the gods and all will be fine.
Finally, you probably know more than you think. You've plenty of experience. Most of the time I can do what I need without e.g. classes, but sometimes I'll intentionally use a technique in a project just to learn it. I can't learn stuff if I don't have a use for it.
I'm still learning, so if I've got any part of the above wrong, please help me out.
RandomUser 7 months ago • 95%
Yes prime minister is the most accurate documentary about British politics of all time.
RandomUser 7 months ago • 100%
Do you on now anyone who uses disposable vapes? There may be a useful battery in one of those if you can't find an alternative.
RandomUser 7 months ago • 100%
There's a lot of Scotland, and don't underestimate driving times. Argyll is good, but can be rather wet any time of the year. Going around now you should be safe from the midgies. Recommend getting onto some of the islands too, and boat rides are always nice. Kerrera is a lovely little island just by Oban. It has a very atmospheric castle, though the teashop isn't as good as it was so pack a lunch. If you like a dram, make a tour of some distilleries, each has it's own character. Argyll has lots of archeology & standing stones if that's your thing. There are loads of lumpy bits of you like walking too. Pretty much anywhere is good, tourist hotspot are ok, but try to get off the beaten track once in a while.
If you're driving, and going onto country roads, please please please learn to reverse.
If you're lucky you may get to spot some wild haggis, but they're quite rare now. The farmed ones are cute but have a nasty bite so be careful.
Also don't neglect the borders, loads of history.
It may not sound your thing, but consider geocaching... It takes you to some interesting out of the way places.
RandomUser 8 months ago • 100%
I like a cheap watch, I made my two watches using Ali parts and Seiko movements. They look good enough to me and do their job perfectly. If anything goes wrong it won't break the bank to fix. Imagine scratching a rolex!
RandomUser 8 months ago • 100%
Nice one. I love the 1100 series, always fun picks.
RandomUser 9 months ago • 100%
You will get stressed, maybe even angry. It's ok. Take a deep breath and walk away for a moment.
There doesn't seem to be much emotional support for men, but sometimes it's needed. Talk to someone, anyone, even talking to random people on the internet can help.
Enjoy the ride, you're in for a great adventure, and while it doesn't feel like it at the time, they really do grow up quick.
RandomUser 10 months ago • 93%
3 day working week will more likely mean companies cutting staff by 50%. Can't imagine most people being able to live when only working 3 days.
RandomUser 10 months ago • 97%
Why wasn't there security on the device? My works devices are password protected and it's a disciplinary offence if I share passwords or give unauthorized access.
If he gave them the login creds, then he should be penalised .
If he logged in and gave the device to non parliamentary staff, he should also be penalised.
He got caught because it cost money, which is the lesser offence. Cyber security should be more robust for ministers than it is for most companies, but seemingly not.
RandomUser 11 months ago • 100%
Update, for what it's worth.
Over summer, and after getting the place properly watertight the wood gradually straightened out. It's not perfect but getting there and all bay one of the sills are pretty much acceptable.
I think the problem was that the underside of the wood was more humid than the top side which could dry out.
Lessons are: don't expose wood to repeated large changes in temp and humidity over a prolonged period. If you do however, be patient, there's a chance that it will fix itself.
So glad I didn't panic and replace them.
RandomUser 11 months ago • 100%
Have used one for muscular problems in the past with success. The pads have to be in the right place, and the settings right before it works properly, so there may be some experimentation needed.
If it's running and a pad comes loose you get an 'exciting' shock.
Don't think they can be used permanently.
If it's muscle spasms, have you checked for electrical problems like a trapped nerve?
Good luck with the pain management.
RandomUser 1 year ago • 100%
I apologise for my country. If it makes any difference, I didn't vote for the idiots. Sorry.
RandomUser 1 year ago • 50%
Not sure if this vid will help you, but it's real life experience of carrying for someone who has the disease.
Apparently other people have said it's accurate and helps. I've no connection other than following the creator for his excellent technical content.
RandomUser 1 year ago • 100%
Arduino and esp32 are both good places to start. On YouTube look up ralph s bacon I think he is - He does lots of microcontroller stuff, and of course the likes of big clive will teach you all about basic electronic circuits.
If you're a complete newbie, get a kit and work through the tutorials.
Stuff you'll need at first is a microcontroller, prototyping breadboard and a few components (should all come in the kit of you go that route). When you have something that works that you want to keep, you can think about a cheap (ish) soldering station and either veroboard, or look into getting your own boards made.
A multimeter will help a lot (cheapish will do) and depending on how deep you get, a bench power supply and an oscilloscope, but you can live without those for a while.
Get good quality solder, and using extra food quality flux changed the game for me. If you are an older person, magnification really helps too!
Get components in 10's or more as you'll save a little and it doesn't matter much if you let out the magic smoke. For hobby stuff, Alix is your friend.
Have fun.
RandomUser 1 year ago • 100%
It's from Ali. CuSn8 alloy.
Do self build watches get the love in here? This is my second build, I wanted a more relaxed every day watch with good readability as my eyesight is starting to go. I also fancied a bronze case and will let the patina form naturally. Any scratches, marks or dings will, I think, add character. Inside is a Seiko nh36 to give me some options later if decide I need day/date. Thought I'd made a mistake with the white hands but now really like them. It's nothing special or expensive but it meets my needs perfectly.
Apologies if this is the wrong community. I have a house renovation project ongoing. Before winter I fitted European oak internal windowsills which over winter have badly warped (cupped and bowed). I'll have to replace them so would be grateful of any advice as to how to stop new ones doing the same. We were told that the wood was dried, and it was sanded and given several coats of Danish oil prior to fitting. I think they were glued in place with PU adhesive, but I didn't do that but so am not sure. The winter was relatively hard with dramatic changes of humidity and temperature in the unheated house, if that would have an effect. One window sill was not fitted but was left in the house all the time. It's still in perfect condition. The sills are approximately 20mm thick and 200mm deep. The warping is in the order of 5-10mm. Any advice as to what went wrong or how to prevent it happening again would be much appreciated as it's heartbreaking seeing that much oak being spoilt.
RandomUser 1 year ago • 100%
The PI is always a good place to start, but they're not cheap anymore. You can still do some useful things at the command line (not sure how fun, but a great education), python is there and very accessible. - get a camera and you could do some great things with open CV. Not sure what packages are out there though. Think you'd just have to follow some web tutorials.
As an alternative, have you considered an Arduino kit? Lots of great projects, all very well documented. Playing with LEDs, sensors, motors etc may keep their attention longer than a bash prompt.
RandomUser 1 year ago • 100%
Practice is essential. My game improved when I started buying multiples of the same lock. As LPL said, learn to pick locks, not a lock. A range of tools helps, I have a few different tension wrenches I made out of wiper blade. With basic tools it's easy and rewarding to make these and they do make life easier. Good tension control is really important as it lets you feel what is happening in the lock. I wouldn't spend a fortune on picks at the start, your skills are probably weaker than your tools, though having said that, sometimes you do need the right pick for the job. I have an American Lock clone with such a tight keyway I've only picked it twice. With a thinner pick it would probably be easy. Bosnian Bill said "if what you are doing doesn't work, try something else", so try a different tension wrench or pick, or start on a different pin. It's easy to keep picking the same lock and thinking you are improving in lock sport. You may have just learned how far to push each pin on that one lock to get an open.
As with everything, practice, practice, practice, oh, and have fun.
RandomUser 1 year ago • 100%
I don't yet have a 3d printer, and it's a bit large to print in single pieces. I'm toying with the idea of a black plastic 2-3mm front, have tested it and the LEDs will shine through rather nicely. The case can then be whatever I have laying around, painted black. May do the edges in either brass or alu L section as it'll make the construction a bit easier. All depends on time really.
RandomUser 1 year ago • 100%
Project was to display tide information (time and height) on an LED panel. Fingers crossed the image loads! OK, it's not an Arduino as such, it's an ESP32, but I programmed it on the arduino IDE. I get the time from an NTP time server and tide data from an API. A bit of messing around with daylight savings times and I display the next four tides on the Hub75 LED matrix. Date and clock is shown on the other side. Every 24 hours I pull new data down and sync the clock. The good: It works as planned. The bad: API keys and wifi creds are all hard coded so will need a firmware update if either change. Don't think I have sufficient pins left to allow me to read from an SD card. The ugly: The wiring behind it is not beautiful. The code could do with a review and tidy. - Maybe even a bit of error handling wouldn't go amiss. Red and Blue are a bit jarring so close together and the blue is a bit swamped , especially when the brightness is turned down. I may make an enclosure to keep it all together and keep the dust off and add a pir sensor to turn the display off when there's no movement. Or I may get bored and dismantle it!
I bought a slate clock as a restoration project but didn't spot at the time that it had been painted black. Any advice on how to remove the paint without causing damage? Will commercial paint stepper do the job?
RandomUser 1 year ago • 92%
many technical jobs are vocational in nature as it's impossible to turn it off after work. As long as it's not affecting your personal life & work life balance (and not affecting your friends and relations) then you are very lucky. Most people don't enjoy their work so you're in a good place. Importantly though, don't feel obligated to do work problems on your own time and don't let management expect it. Only do it if you want to.
I like the saying "give a man a job he loves and he'll never work again". it's been true for much of my working life.
RandomUser 1 year ago • 100%
If you're new to it, then the tutorials in the kit are great. Really encourages you to think about what these little boards can do. I got one of the elegoo sensor kits to explore further. - I know people who use the kits professionally for early stage prototyping.
RandomUser 1 year ago • 100%
Nordic looks interesting, and is now on the list for as/when I need zigbee. - No experience of it sorry. The PI unit is attractive for it's operating voltage... I'm currently struggling with getting an esp32 powered nicely from a lithium battery. Have to say though that I'm really impressed with the esp32.
RandomUser 1 year ago • 100%
It's a while since I've wild camped so not sure if the status has changed. When I did it was more 'accepted' than 'permitted'. Also, the good spots are closely guarded secrets, so you're mostly on your own there! I don't know you're experience, but for anyone else thinking about wild camping: You want water relatively accessible and depending on the weather, some shelter. (I've always drunk from fast flowing streams, never pools and survived without treating the water. You also want seclusion as you really don't want to be getting any attention from walkers or land owners.
This time of year you won't be getting much sleep, so decide if you want the evening or morning sun - I prefer the morning sun as it dries any dew off my kit. Looking at the map you should be able to plan a route and spot some quite nice spots if you think about the above. Only spend one night in a location.
I used to leave work early, drive down, get half a walk in, a night camp, finish the walk and be back to work for 9AM. One memorable morning was waking up on top of one of the Carnedds.
My preference was always to bivvi rather than tent as it was easier to carry and far easier to find a hidden spot. - The pleasure, as with most bivvying is generally retrospecive, but great fun. Pitch up at dusk and leave at first light, leave no trace bar some flattened grass and all is good. - Just make sure you pack enough calories and water.
The first wild camp I ever did was on the side of Tryfan in just my sleeping bag on a clump of heather. It would had been perfect if I hadn't put my hand in goat muck earlier in the evening. - Took two days to wash the stink out.
Happy days. Have fun.
While not quite Arduino, I have an ESP32 (Arduino IDE) project to pull tide data via API and show it on a HUB75 led matrix. I've got most of the parts working separately but not quite got them all together yet. What is everyone else doing?
RandomUser 1 year ago • 100%
As a reddit refugee, this is my first post and it's taken a few hours to get to this point. My work involves getting non technical users to use high end tech and agree that language and terminology can make or break a deployment. Reddit is easy, sign in here and away you go, not quite so with Lemmy. I have learned that if a system isn't explained as simply as possible, in terms that your grandmother (or boss) can understand, adoption will be harder.
I'm not saying dumb it down entirely, but nobody cares about servers. Providers may be too abstract. Maybe go as far as calling them 'Homes' - or something else real world tangible. Once a user gets that on board they can then understand that different homes can talk to each other to form a village or community.
I enjoyed the 'thing explainer' books... Cut out all the technical jargon, focus on the user experience and save the detail for those who want to know.
As I say, I'm new here so apologise if I have spoken out of turn out caused offence, I'm watching and learning, and thought my fresh first hand experience may be of use.