Hi, i bought a motorised TV lift that can handle some weight (80kg) and i planned originally to lift the tv from cabinet, but when i measured i noticed a slight problem, firstly that cabinet will have to be directlty on the floor instead of wall mounting it (i wall mount everything so it is easier to clean). And the main issue is that TV will be too darn high. I have a low sitting couch and center of tv will be about 130cm in height (eye level is say about 90cm).

Another option is simply have everything hanging and lifting the TV cabinet itself, which would allow me to have more optimal eye level tv, but it feels clunky and weird.

TV is 65'' so it is about 84cm in height. And lifting it from the cabinet feels more premium but i wonder if anyone else had the same issue and what was the solution?

Thanks in advance.

More info: Living room with low level seating couch. Also not sure if correct sub?
Edit: Also the wall behind is a real solid wall, so mounting anything is not an issue.

https://preview.redd.it/osuzo82lilpb1.png?width=1921&format=png&auto=webp&s=49d26dd12dc142423204a615ca1c80d62db1cd33

Hello makers,

I am looking to start a website for curated projects and curated parts in electronics. I have personally gone through the pain of ordering a part from Adafruit, a fingerprint sensor which never worked, and their tech support team literally did not take any responsibility for the defective part.

Think of it as an al-carte and buffet menu of digital projects covering length and breadth of beginner, intermediate and advanced level electronics, programming, and robotics. Example, you want to learn 555 Timer and its applications, and we offer a digital projects pack on 555 covering all important concepts- Monostable, Astable, Bistable, PWM, H-Bridge, etc. You buy the project pack from us, and have the option to order pre-tested parts from an authorized supplier.

Project pack will contain photographic step-by-step instructions, complete theory behind the project (indepth manuals), experimental readings and what instruments to use (multimeter, Oscilloscope).

I have started building the project packs already. I am wondering about the business model and pricing. Any suggestions? What if we charge a reasonable price of $10-$25 per project based on the complexity of the project? Or offer a bundle for say $60?

What do you think are the most pressing issues for a beginner trying to learn electronics? Is is the parts or organised curriculum or technical support?

In 555, I have planned around 11 projects covering all key concepts and ideas. I want to cover complete analog and digital electronics doing this.

What are your thoughts?

I want to create something valuable for the community.

An example of 555 as monostable below:

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https://preview.redd.it/4u0xbwn9qepb1.jpg?width=3000&format=pjpg&auto=webp&s=30a65793ed010796455976fce3cec1080fee1491

https://preview.redd.it/4q7c5xn9qepb1.jpg?width=3000&format=pjpg&auto=webp&s=48c2c9739d5313ec1a33f391a25861aeed94db9d

Best regards,

Jimmy

I'm planning to build a budget good performance speaker I'm planing to use (225W FULL RANGE) + (150W WOOFER) for this build Is this good?

Okay I dunno if this is the appropriate subreddit but here goes nothing...Also I'm an amateur with this kinda stuff so be gentle on me.

My goal is to build an "all in one" table hockey game, sorta like the american bubblehockey games. My plan is to base my build around an existing table hockey called "Stiga Play Off" (all you nordics know the game). On it's own it's a fun game but it's super simple. All plastic pieces and no electronics whatsoever. So I want to spice it up, I wanna make it into a hockey experience with lights and sounds, sorta like all the arcade hall games and flippers. I actually wanna take this on a whole another level. I want this to simulate how a real hockey match would play out. Music, lights, crowd noise, game sounds, ads, on screen slow mo, you name it! I want it to be an experience! So I will build a sturdy table on top of which I'm going to install the actual hockey game. I will install a jumbotron above the ice and surround the whole playing area with plexiglass/acrylic. Now inside the table I'm going to install speakers and some kind of computer that runs all the electronics that I plan to use on the project.

Here's the list of the electronics:

-Speakers (1 subwoofer, 2 stereo speakers. These would play music and sound effects throughout the game.)

-Physical buttons on the table (Two "READY" buttons on each side to start the game sequence and maybe an "ON/OFF" button on the side to power the whole thing up.)

-LED lights (many lights, standard white "on ice" lights and some really cool colorful "intermission/power break" lights that move or flash with the music.)

-Screens for the jumbotron (At least two small screens that show the score and some other cool stuff like ads and game stats. Possibly even highlights and slow motion video of the goals.)

-Cameras (At least one camera that captures the whole game from above, preferably located inside the "jumbotron". If possible, two very very tiny cameras inside each one of the goals just like in a real hockey game. In a perfect world these cameras would capture a slow motion video of a goal being scored and you would see it instantly on the jumbotron. Just like in a real hockey game.)

-Puck shooting mechanism (Plan is to make a puck size hole in the middle of the faceoff circle and when the game starts it shoots the puck up through the hole. Haven't put much thought into how this mechanism would work but I'm sure we'll figure this out.)

-Goal sensors (Two sensors under each goal which then trigger when the puck passes through. So when the puck goes in the goal it falls through a hole on the floor of the goal and then rolls into a slot underneath where it can be shot back up into the game. Optical sensors maybe?)

-A computer to run all of this (Preferably a computer with usb memory or SD-card slots so you could store recorded games and stats. It would obviously be used for many other things too such as creating playoff tournaments if many people wanna see whose the best of them all.)

-All the wiring and cables to connect and power up everything.

-Other stuff like possibly a small keyboard for inserting player/team names + debugging and all that jazz.

Now hear me out, all this sounds super duper overkill for a tablehockey game LOL but I wanna see if I can pull this off.

So what do you guys think? Is all of this even possible to make? What kinda elctronics should I purchase for this project? Does there exist a small computer that could run two screens, 3 cameras, speakers, lights, physical buttons etc..? Possibly a SBC like a rasperry pi or something? I have no experience with SBC's myself but I'm eager to learn and what better way to learn than to make a real world project like this. I also have friends who are willing to help me on this project, mainly with 3d printing and coding side of it.

Video: https://www.youtube.com/watch?v=otlP7usU7jw

I would like to build the litter box shown in the video myself. I have tried to contact the publisher via comment, unfortunately without success. After this stood a week, I deleted it again.

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Therefore, I would like to ask you and collect ideas or implementation possibilities.

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My craftsmanship is average, I am a professional programmer and could therefore cover this. I have a little experience with Raspberry-PI, but not yet with Arduino.

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I suspect that several sensors were installed here, especially probably in relation to weight, as well as possibly IR sensors to additionally detect whether a cat is currently in the box.

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Furthermore, I see that some kind of panel is connected, probably for operation.

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What parts would I need to rebuild it and what is the best way to go about it?

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Thanks in advance!

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Hey guys, I’m trying to build a full-featured, high connectivity, rugged, apocalypse/cyberpunk inspired cyberdeck for cybersecurity uses. What is the best Pelican style protector case for a large cyberdeck?

Hi parents!
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Hi! I need some help. We hired an electrician to do some wiring in our new rental home and we asked him to install an electrical box behind the TV so that the cords wouldn’t be seen. Well the box he installed seemed WAYYYY too high and when we asked him why he put it that high he said he just put it where there were holes before, which didn’t seem right and I asked him if it would be a big deal to move it and he said yes it would be.

Well, we just now went to hang the TV and the only way to cover the box completely is to mount the TV really high. Not only does it look weird to have it that high it’s also uncomfortable to watch because you have to strain your neck a lot. So, I’m not sure what to do and thought I would see if anyone has any suggestions or solutions on how to fix it.

The GOAL is to have the TV lower (maybe 12 inches) and the box not seen. I don’t know anything about the electric box or how hard it would be to move. The box itself is really large and seems much bigger than what we actually need – all we need is one electrical plug for the TV. It’s a smart TV. But, if we move it then I'm assuming we have to drywall and repaint.. what a pain!

If it’s too hard to move the original box… is it possible to add a 2nd outlet box below (behind the TV) that is somehow connected behind the wall to the top box… so that you can plug the TV into the lower outlet box and just cover the top box with a hollow shelf or something? Or another way to rewire it? Maybe something wireless (I know that's a stretch).

If we cover the box with something decorative like a hollow shelf we still have the issue of how to plug the TV in without the cords being seen.

Here are some pictures showing what I'm talking about. https://imgur.com/a/QhpEJOs

Thanks in advance for any suggestions.

I want to keep her away from some of the house plants she loves to eat so I thought this might be a fun way to do it.

Edit: to clarify here, I’m not trying to torment my cat. The bubbles are catnip infused and she’s distracted by them but ultimately leaves the room so I was being dramatic saying she’s afraid of them.

I'm planning out a project that requires a gasket in a round hole that's been cut into a 3/4" birch plywood board. I'm sure this won't be easy but is it possible with this type of plywood? If so what methods/options do I have to cut a groove on the inside edge of this circle that's cut out of the board? I'm looking for a cheap method, I have a dremell and I'm hoping there's a solution there with the right toolhead. I'm a bit confused with this one so please halp!

Canada's Secret Billionaire? (Fast Money in Tech)

I know a lot of Techie people who got rich in Tech but this guy got real big money in tech.

anyway...

Is anyone here game for a collaboration? I have some ideas that you might have something to add.

Hello

I'm looking into building myself a DIY painting frame (essentially a monitor with a raspberry pi, in a frame).

I've not got very far with the project yet. I have a monitor to do it with (a 1080p 22" HANNS G one), but no pi yet.

The monitor I have has physical buttons on a tiny circuit board to control the brightness and screen position etc. Does anyone know if there's a way of controlling this with the pi automatically (specifically brightness. I don't have any soldering experience so preferably something easy (even if it's a bit more round about).

As a bonus, I'd like to display information allongside each painting (overlayed in the corner on the press of a button or something. Is that doable?

Thanks

If anyone’s got any idea how to create a voice modifier that can alter audio to a demonic echo as well as thrown around As thought it’s coming from higher, lower or other sides other than the true origin I would like to implement this with a mask for real time alteration

I am looking for someone to help with a project who has a bit more experience with things, I have basic soldering knowledge, have used arduinos and a few other microcontrollers (im more on team gamedev/lighting tech).

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My project that I am think is this (I tried to make this sound like a pitch, i know it sounds like a youtube video).

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Problem "Why is communication between teams so expensive during live shows, looking on ebay at clear-coms is outrageous hundred bucks Canadian for just the headset, unacceptable, and wired at that, gross, no one likes wires. Why is this still the way things are being done?"

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What I am trying to accomplish "I am trying to make a really basic system which enables the techs to talk to backstage."

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Things I have thought of (and why I shot them down):

1. Walkie - Talkies : Tried these a few times, and I would keep getting weird interference across multiple walkie talkies, both from the venues internal com system which runs over FM and from neighboring venues also using walkie talkies.

2. Wired headsets (I could still be convinced to do this): Cables are so expensive, they dont fit in my budget.

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The most recent idea I have,

We use something like a wemos d1 mini, which has both a single analogue in and a digital out, so Mic in and headset out. I was thinking that this could work via wifi, and possible connection to mumble or teamspeak. How would it be suggested that I do this? I was considering setting up a trello or something simular on github for this project, I just want to know if people are interested and I can make a better writeup.

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The end goal is for the tuner to detect whether I'm + - 7 cents out of tune and use servos to either vibrate my left or right shoulder to tell me which direction I'm out of tune; Left side for flat, right side for sharp, which would help me stay in tune during the show/trio. My idea is to possibly either crack open a TM-60 tuner (standard for most TX bands) and keep the board, lights, tuner on button, and tuning clip jack and see if I can reprogram the board and change the output to said servos or maybe an Arduino board to do so, but my dilemma is in how to do it.

I have a cheap projector and I want to change the LCD screen of it. It's about 10.5cmx6.5cm, where can I found a better screen? Is there any sites, repository or other places to buy it? Any company provides that kind of pieces?

Also, is there any other places I should change for better quality visual?

For context, it's a vamvo L4200. Thanks everybody