I made this in uni. pls rate

i made this in uni. pls rate

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What is it?

for you moms vibrator?

Idk man it kinda looks like a pcb

adafruit.com/product/2348

remade it myself in kicad + added some leds. Will get populated and used in a project next semester

What is it even? It looks like a empty circuit board.

Neat board bro, we made circuit boards in 7th grade at school.

Motors are HUGE inductors, I would split your power fill, get you some chunky decoupling capacitors, and check your return currents.

Depending on the voltage that sees it might violate the electrical clearance requirements. If you had a mask over everything you weren't going to solder you might be okay.

it has a ground mask and obviously some caps. i dont think that it will use such big motors on our project. Just some cheap chink ones

Well, other than not having as many connections between the ground planes as I'd like I see no major problems. Enjoy assembly.

t. EE

nice

looks all right
some of the drills need better placement
there aren't any bleeds, weak traces, or shorted pads
that's good

thx
>some of the drills need better placement
>there aren't any bleeds, weak traces, or shorted pads
all machines that we used were old as fuck and therefore not as accurate. We also had to align our mask by hand after we drilled em holes.
Our prof said best thing we could make in our lab would be 8mil, but also said that we should atleast traces with a width of atleast 10mil and it worked out pretty okay

what is that can you put gentoo on it

thanks for sharing
what kind of CAD did you use?

kicad. see

see pic related is original from adafruit

I have a project that I want to redo with a circuit board, it's used to drive 220v solenoids, can you just put heavy loads like that through a basic pcb or should I take special precautions?

so basically you're being a nigger/chink and stealing/ripping off other designs.
nice

dude
you have to check the electrical characteristics of the PCB, ie thickness of the copper and material of the board.
You might be able to somewhat, but probably not for 100% of the time, probably more likely drive the circuit for 1 min and let it rest 14 mins.

looks like it now doesn't it

A PCB can handle pretty high voltages when designed right.

I do get the impression that you are fairly new to electronics. Do you realize the dangers associated with these voltages? I'm sorry if I sound patronizing but for a reason unknown to me newbies always want to do something using mains or other high voltages which is very, VERY dangerous and not just for touching.

Almost all mains related subsystems of hobby project can be bought as off-the-shelf products which isn't that exciting but actually the way to go.

>Open source is bad

Do you even KNOW what board you're on, Sup Forumsirgin?

That's a bold assumption without checking the license of the source (yes, it's the same for hardware).

Not him, just a beginner here trying to learn this shit. Always wondered why electronics convert mains into 12 V, 5 V or something like that. They seem to convert it to DC too. What are these dangers? All I know is high school V=Ri shit, doesn't higher voltage means lower current and so less heat dissipated?

well it's for private/educational use only, so i don't think there is anything wrong with it, m9

captcha: calle valle

Alright, I was just planning on getting it printed at some service, I might be able to avoid running mains on the board anyway.
I get you, thanks for the warning. It's a pretty simple circuit however and at least I've specced my components right according to the datasheets of everything involved.
What do you mean by subsystem? It's just some solid state relays driven by a microcontroller, also the mc part is powered by an internal ac/dc converter. Should I be using more elaborate components that include some kind of failsafe etc..?

>oesn't higher voltage means lower current and so less heat dissipated?
can you overvolt CPU's and memory infinitely without any difference in heat?

if you are going through a service, they will probably walk you through selecting the right board and weight
just don't expect getting a 3-mil board with 1/2 oz copper is going to run mains voltages at 15A without problems like fire.

>What do you mean by subsystem?
Just an arbitrary part of your project. You could consider the power supply a subsystem of your project. Instead if risking electrocution and/or fire by designing it yourself you can buy one that passed all safety certifications.

>Should I be using more elaborate components that include some kind of failsafe etc..?
Make sure the circuit breaker has a sane value, none of the hot side can be touched directly or indirectly and you have a decent enclosure made of flame retarding material.

Semiconductors work a little different compared to passive components (including PCB traces and wires), dont'cha think?

>can you overvolt CPU's and memory infinitely without any difference in heat?
Different thing.

He was asking if transporting power at higher voltages is more efficient and it is. At higher voltages losses in the form of heat is reduced.

Your example with the CPU is different because this is increasing the voltage on a load which will increase power consumption proportionally by voltage squared.

>Just an arbitrary part of your project.
Yea I got that far lol
I'll look into flame retarding project cases next time, good tip.

Whoa... So if I had 110 V mains and switched to 220 V my stuff is gonna melt down? I thought it would simply use 110 V out of the "available" 220 V

do semiconductors have wires in them?
this is wrong. are you talking about DC or AC?

Actually the relation between supply voltage and dissipated power is proportional to voltage^2 for both ohmic loads and CPUs.

In the case of an Ohmic load:
P = V^2 / R

P = power
V = voltage
R = resistance

In case of CPUs:
P = C * V^2 * f

C = cpu specific constant
f = frequency

Upping your voltage by 10% will increase power by 1.1^2. Upping the frequency by 10% will increase power by 1.1

>this is wrong. are you talking about DC or AC?
Doesn't matter. Same power at higher voltage is less current. Voltage drop over transmission line is proportionally to current. Lost power is voltage drop times current so higher voltage means lower loss.

I did that shit by hand noob.

ouch user

>moms vibrator*

astable multivibrator

No that's with amps. Volts will, in fact, fry you.
Why do you think high-voltage facilities always have "DANGER OF DEATH" plastered all over them? Or why are lightning strikes considered dangerous? If your body could just "take" 9V of whatever the comfortable limit is, there'd be no danger. Instead, all 10,000 V (or 100,000,000V for lightning) will always go through you and kill you.

>10,000 V (or 100,000,000V for lightning) will always go through you and kill you.
>go through you and kill you.
>go through you

lol, mutt edjukashion

Well, I think the essence of his post was that the voltage is a given and the appliance or load will dictate how much current will flow, which is correct.

So, you etched and tinned it?
Was is chemical tining and if so what solution?

I gave up on tinning and started using solder mask instead for my homemade pcbs.

you are right but he is wrong from the get go starting with volts will fry you.

But user, there are no anime draw in it
You fucked up

Am I correct in interpreting volts like gravity or pressure then? As though it's the force that makes current move

Volt is a measure of potential. It's a difference in electrical potential between to points. So kinda like (air) pressure I guess? I usually think of it like, water at the top of a waterfall and at the bottom. Top has a lot of potential bc. it could fall down. And only has that potential bc. of the height difference.
t. gymnasium physics

If it works - no problem.
When I didn't had a laser printer or photo resist - I traced PCB with moms nail-polish and masking tape.
And yeah, I don't trust autorouter, because by hand I was able to make everything on one layer, but it suggested 4 layers...

5/10 - too generic and no qt anime girl on it

The Chinese would have made it in less time and for much cheaper. Try again.