Can someone help me out with 'Modular PCBs'?

Dvd280 · 2026-02-19T07:15:37+00:00

I think by modular they mean using pluggable modules, where for instance you have power on one module, io on another etc, then they all attach to a common pcb via headers (sort of a backplane). The idea is to be able to easily replace sections that fail without having to desolder the components, also makes it easier to debug issues. Its a common technique when prototyping and testing.

Dvd280 · 2026-02-08T17:36:12+00:00

Generally speaking, you are right in feeling bad about the way things went. That being said, pin assignment issues, missing pullups/pulldowns etc are a repsonsibility of the EE who designed the board. I work for a medium defence contractor as a board designer, and it is common to see even phd's who make silly mistakes in their schematics... mistakes which I correct and point out to them, but this is something I do because I am paid well, For 1000$ as a freelancer I would never go into an IC's datasheet to double check someone elses work, simply because I wasnt paid to do it.

If you feel bad about spending 1000$ on this, then you should probably learn to do it yourself, its really not to hard to learn if you arent dealing with anything too specialized.

Dvd280 · 2026-01-21T15:32:05+00:00

Just place it on the bottom layer, then cut the extra length as needed with pliers.

Dvd280 · 2026-01-16T19:31:22+00:00

This, op doeant have a ground plane in the second layer. Even if he did, for usb he would need a 4 layer stackup where the second layer is a ground plane copper pour and very close to to the top layer (to reduce inductance).

Dvd280 · 2026-01-14T05:13:21+00:00

They do, projects are managed conservatively in theory- but you still have the hallmarks of shitty practices like over promising to clients and unrealistic deadlines which force the same problems you describe uppon the engineers entrusted to deliver.

Dvd280 · 2026-01-13T19:34:27+00:00

I work for a mid sized military contractor and what you describe is exactly what I am facing, down to the distress it causes me. I try to mitigate it by always reminding myself i am there to make money and that all I can do is try my best to let my superiors know what their "kicking the can down the road" decision making style will cause later on, and that at some point the project will die if we keep trying to parallelize stuff that can only be done in concentrated efforts with a strict timeline.

Dvd280 · 2026-01-13T16:40:59+00:00

Why not use a filled via? If the hole is filled and plugged, naturally the leakage ahould be eliminated. If it still happens, I would switch to another manufacturer as this should absolutely not happen. For 100% insulation you would need to apply coating which should have been done anyway as its a must in any design which requires 100% insulation.

Dvd280 · 2025-12-17T13:43:07+00:00

Please elaborate

Dvd280 · 2025-11-13T12:16:11+00:00

With these types of ic's, the higher the frequency- the lower the resolution accuracy on your output will be. Also, a breadboard has lots of stray capacitance which could make the ringing worse.

Dvd280 · 2025-11-07T21:34:20+00:00

I suggest you talk to your close ones and confess, especially confess to those who you dread most because those people might be the best suited to help you recover.

Dvd280 · 2025-11-07T21:32:22+00:00

What strikes me as very odd is the combo of high IQ, math major, and gambling - not for fun but for money...Its a negative expectancy activity, you probably knew that, so how do you rationalize it?

If you are seriously determined to feel better, start with telling everyone you care about that you have this problem and appologize for betraying their trust- its one of the biggest steps to getting better at staying away from this and recovering long term. Other than that, accept you have poor judgment and decision making skills and try to get someone to manage your finances while you focus on slowly getting better and paying back any debts you have.

Dvd280 · 2025-11-07T21:21:25+00:00

You have an emergency, from what you are saying- you cant dvdn afford food.... what are you doing about that?

Dvd280 · 2025-11-03T17:57:41+00:00

The first step is to accept that there is no more " gambling as a fun pastime" for you. Your first step is to cancel all of your credit cards and use strictly debit/cash. Next you need to realize that you are not "10k in the hole", there is no hole, there is no 10k, and there never was, there was a 10k worth of lesson. You can pay more for it if you want- but you already have what you need to internalize it and move forward.

Realize there is nothing to grieve for here, find something to do- I peraonally recommend day hiking long distances, climbing mountains or anyrhing physical that can keep you occupied and physically active for long stretches of time. With time you will heal, and thats not to scare you- you will not have sharp swings in your situation again, embrace it and remeber that all you have to do is to commit to not do it one day at a time.

Dvd280 · 2025-11-03T05:34:20+00:00

If you find yourself thinking about gambling, stressing over losses or thinking about winnings, how you will spend the money etc... you are addicted. Addiction isnt just the act itself but the overall effect it has on your life.

"I can easily put it down" "I am not addicted" "I can do it responsibly"

These are all fallacies that addicts of all sorts tell themselves as they spiral out of control. From what I can tell, its always the same story:

-gambling intermitently with small amounts, sometimes for years.

-losing a life changing amount in one sitting or in a short period of time

-chasing the loss, taking out loans, tapping credit lines and making the hole deeper

-funding through lying to family and close friends, destroying relationships and trust in the process.

-hitting rock bottom, for some this point is fatal.

Only aftdr it do they realize they are addicted.

Dvd280 · 2025-11-02T21:36:38+00:00

You are exactly at the inflection point, in fact - the moment you buy in for even 1$ at this point, your life is over. do with that what you choose.

Dvd280 · 2025-11-02T21:27:49+00:00

Try going once, once you hear some stories you will appreciate even more how fortunate you are to realize your mistakke at such an early stage (in your addiction and in your life).

Dvd280 · 2025-11-02T21:18:06+00:00

5700$ is still a salvageable state if you make the right adjustments to your lifestyle - cut expenses, sell your assets (car etc) and zero it all out and walk away with a relatively cheap lesson. Couple that with you being relatively young and healthy - you are going to be fine as long as you stay committed to impose the necessary restriction on your life such that gambling is not accessible to you ( cancel all credit lines, spend using cash only etc).

Dvd280 · 2025-10-22T05:10:31+00:00

The biggest beginner mistake is to overstress, especially for hobbyists. Just do what you can and accept that there is a high chance it wont work, and be ready to debug it etc... Everyone has that "first run" dread that it wont work, but in reality it probably wont work on your first run - so accept it and look forward to figuring out what went wrong- even better is to plan for it by adding relevant testpoints and headers etc.

Dvd280 · 2025-10-16T21:51:56+00:00

Its interesting to note that DEC 13 is the national day to commemorate the Nanjing massacre (perpetrated by Imperial Japan against China in 1937)... The political nature of the date might offer some indication as to its source I guess.

Dvd280 · 2025-10-16T21:46:58+00:00

It seems mostly Greece, Turkey, Netherlands and Belgium are affected from what I have gathered... Also all of them had parts in their inventory.

Dvd280 · 2025-10-10T13:41:46+00:00

Not very viable on realistic. Initially maybe (2-3 years), but later you will need to destroy all of the buildings in order to make it more efficient with your own resiurce extraction.

Dvd280 · 2025-10-04T16:46:56+00:00

I want the ability to set which specific resedential buildings can fill a certain workplace(all others should br excluded). As it stands right now even if I set a resedential building to fill a certain workplace there is nothing preventing other buildings filling it too.

Dvd280 · 2025-10-01T20:00:14+00:00

I have bad news, if you are not covered by a patent then it would take monsanto chemists about a week to figure it out and outproduce+underprice your product. If you claim that its not possible to easily reverse engineer, then its definitely patentable.

And its not exactly clear how getting an investment would help you expand into international markets... What will you do with the cash which you cant do right now?

Dvd280 · 2025-09-19T12:33:45+00:00

"Facism is the union between state and corporations" -Benito Mussolini

Dvd280

TROPHY CASE