3 hours making this beautiful circuit to test stepper motors.
Arduino nano + L293D + pot
Fucking bitch has a short circuit somewhere and can't find it out...
Made the same project in a breadboard in 15 minutes and it's working.
Fuck hardware bugs.
Cutted in the middle of all connections, took out excess solder... Nothing.
Fuck it, moving to the next ideia

Look at this handsome soldering..
I really suck!

i remember when i did the same STEPPER at high School. Mos integrated circuit, such a princess

TI DRV8825 stepper drivers are my favourite

Also, you might find it easier.to place the IC in the middle of the veroboard, then you just have to run solder lines to the sides, no criss-crossing

Stripboard soldering is not always easy. You need a smooth hand, a soldering iron with around 15W and pointed tip, and preferably leaded tin-solder.

I suspect a short in the lower left of upper right. Can you make hi res pictures and upload externally?

@RememberMe Also have 2 sets of those (shield + 4 DRV8825), and a few easy drivers, a few l293D shields, few l293d chips and 50 uln2003a :D

@Fast-Nop Hey :p no need, I tested everywhere and cut in the middle of joints. I already trowed it to boards pile to dismount later.
I'll retry again tomorrow. Next project is a DC car Bt controlled.

@GyroGearloose Awww.. oh and another possibility is to mix up pin numbers when soldering from the bottom. I always use a black marker to mark where pin 1 and pin N is on the bottom side.

@Fast-Nop Nope... there is a reason why I took 3 hours, checked every wire, every connection again and again.
The fucker did at one-time throw sparks right at the power in pin (the 2 holes one), changed it to another place but still didn't work.
I'll just make another with better soldering (and get more training at soldering).

btw how do you call those LEDs that blink by themselves? searching for those for a long time (to work as a timer), just need their name.
@Condor do you know the ones I'm talking about?

Reason #1 i always use breakout boards instead of ics

@GyroGearloose I didn't even know this exists. LOL

@ganjaman for quickly checking things out yes, but not for devices that are meant to be used, or prototypes. The connections will be prone to vibration and corrosion.

@Fast-Nop Yes they do. I found them in the local store, at 3€ a piece... so I need it's name to check if I can buy them from china.
It's like a 555 but with just one led and pulses at 0.5 seconds, perfect for a simple board to test steppers and other kinds of motor.

@GyroGearloose dude, keeping wires on the top l face will reduce reduce lot of issues. My personal experience

@GyroGearloose Better than what I could do, the solder doesn't stick to the tip of my iron!
Maybe it's not hot enough, but idk I gave up on soldering because of this.
Also the lead content in the lead+tin solder wire isn't something I should fuck around with
.

@N0-Flux-Given
Your problem is liteary in your fucking name...
(You also have oxidised or dirty tip)
(Well thats gyrogearloose problem as well!)

@GyroGearloose
3€ a fucking piece?! I can buy like 6 of those for that price! Use aliexpress. And buy those with through plating, in that type that you have, those copper circles like to detach because of overheating. Ones with through out plating can handle a lot of abuse and are not going to fall off ever.
PS. You use too much solder per joint. They should look like cones.

@Gregozor2121 well... Do you know the name of those leds? I'm only missing the name to order them :p.

I use lot of Flux, maby to much, iron is a cheap one (fucked the expensive one) with a big tip. Need to find and buy a smaller one that heats good enough

@Gregozor2121 Yep my tip is dirty as fuck, looks like some antique museum piece that'd be placed next to some dinosaur fossil or something.
I'll give flux a try.

@N0-Flux-Given Use a piece of paper ( I prefer cardboard) and after wetting the tip in flux clean it in the cardboard/paper.
I already did a lot better than this... till I fucked a 70€ soldering iron with a noob idea (scrape the tip... never, ever do that).

found my blinking leds:

https://aliexpress.com/item/...

@GyroGearloose I used to scrape the tip pretty hard on a sandpaper and then a file o_O
Anyway it is a really cheap iron with no temp control or anything so I didn't lose much :)

@N0-Flux-Given The problem to scrape is that some irons, especially the more expensive ones have a core of copper and a protection cover if you scrape the protection cover the iron will never work properly again.
So, a really cheap one with a full body tip it's ok, you can scrape till there is nothing, if it's copper and has a protection it's the same as throwing it away.