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EEE (tips and tricks on keeping an orderly breadboard)

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Thread replies: 71
Thread images: 24

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Stop what you are doing.
Post a pic of your breadboard, now!

No shortening of the jumpers for the photo!
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mine is lost lel
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>>904472
i mostly just solder on protoboards.
i hardly ever use my solderless breadboards.
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>>904514
>protoboards

Thanks for reminding that I need to order some.
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>>904491
>>
i'm working out of my first kit right now, the only cable i have available are jumper wires. mcfucking kill me.

b-but at least i know how a shift register works now, right?
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>>904596
Hey I bought the same exact push buttons! Those jumpers are pretty great for really quick prototyping. I've been guilty of buying 500 of the little buggers.
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>>904620
They're just really poor quality and fall apart by themselves.
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>>904596
I made my own jumpers from ancient salvaged aluminum wire from old electronics. I couldn't imagine paying for them. Especially when I prefer to shorten them for the task needed.

>>904620
>>904637
Mechanical momentary switches/buttons are terrible IMHO. I've never found any that didn't break down in some way. They either fail and break or their contacts oxidize or something. But they will work for a while then sorta not work, gotta press harder, then finally nothing. I got fed up with it.

So, I started developing capacitive touch sensors instead. I prefer the transistor-based ones. The IC based ones I came up with using the 555 seem to drain energy constantly. I'm sure the more expensive IC purpose built touch sensors don't drain or don't drain as much.

The transistor ones I made in these pics work well. The one with the capacitor is good for battery power and the other ones is good for wall outlet power. Both are good if you are using a momentary toggle circuit, where you press it and it turns on and stays on until you turn it off.
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>>904491
This one makes me uneasy. I'd be afraid of bumping something and having the legs short on each other.

>>904593
Much better. lol
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>>904671
>This one makes me uneasy
you're a fucking noob and you should fuck off with your neat breadboard threads.
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>>904671
>cut legs short
>component cannot be reused
what was the point of the breadboard then?
i know i know its mad.
but neat breadboard wires are a must
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>>904688
Geez, you don't have to cut the leads, just put heat shrink on them.
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>>904700
this fucking guy
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>>904472
Found a use for arguing /diy/ - a lazy as duck 3.3v power supply for rehabilitating 18650 cells
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>>904708
Forgot pic. Arduino not ducking autocorrect
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>>904700
This is what I was typing out until I saw it was already posted.

>>904688
Almost all of my components are salvaged ones from junked electronics. If I need longer legs on them, I solder on longer legs. For prototyping I just slip the heat shrink tubing over them, no need to heat it.

>>904682
Here's my first breadboard. I had to DIY one until I bought a huge one. What does yours look like?

>>904710
What are you using your 18650's for?
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>>904669

>>904596 here

I absolutely hate those pushbuttons. I'm not sure how to debounce them yet so the input is super unreliable and while the shift register tester seems to work, you get double and triple pushes all the time. I'm going to try replacing them with input from my arduino and see if it fixes it.

That's fascinating, though, anon. Lil projects like yours are what I hope to be able to do in the future. :)
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>>904472
>tips and tricks
>make your breadboard look like a sloppy 2/3 German flag
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>>904593
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>>905013
That's all you can come up with?
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>>905161
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How do you guys come up with stuff to build? I'm in my 3rd year of EE and still cant think of something cool to build without needing a cnc/routing machine for pcb's...

Also looking for small breadboard-able projects, thanks.
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>>905557
you can make PCBs with laser printer and iron
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>>905557
Buy some perf boards.

>Also looking for small breadboard-able projects, thanks.

Not knowing at all what you are into this is a bit of a shot in the dark.

-IR Remote Control to turn your house lights on and off or anything else for that matter.

-Clap switch; sound sensing switch (555).

-A PSU that can take nearly any AC or DC voltage from any source (wall, usb, wind, solar, crank, etc) and output it to what you need to charge a supercapacitor or bank of supercaps or batteries I guess.

-LED flashlight with no moving parts at all (no mechanical switch), bonus points for no mains wiring and ....no battery.

-Small light-seeking, solar-powered robot.

-Buy a 555 timer IC or two and google "555 projects" like,
http://www.instructables.com/id/47-projects-to-do-with-a-555/

-Make pickups for metal-string electric instruments and make your own instrument and a 555 amp (electric diddley bow)
https://www.youtube.com/watch?v=HA5HQPM1A1Q
http://www.circuitsgallery.com/2012/07/555-timer-ic-audio-amplifier-circuit-schematics.html

-Small radio.

-Walkie Talkies

-UM66/ BT66 melody generator
http://www.buildcircuit.com/melody-generator-using-um66/
https://www.youtube.com/watch?v=uGW7lhPlaRM

-
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>>905557
Build a CNC then...
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>>905557
If a component doesn't come in DIP form you can solder it to a breakout board.
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>>904472
I'm regretting I didn't take a picture of the breadboard, although it was just a 4 *4 RGB matrix.
Front.
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>>905728
Not my best, ended up cutting the leads too short to wrap the wire around making soldering a bit awkward.
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>>905732
trying out the technique in the video more than any technical merit.

http://elm-chan.org/docs/wire/wiring_e.html
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>>905728
>>905732
Nice.

>>905739
Saved!

Do you use the stranded PTFE wire or solid? I have like a pound/3200ft of solid 30awg enameled magnet wire I need to use for something.
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>>905830
Solid. There is no point in using stranded wire for this type of construction. It's a hassle to prevent shorts with stranded wire on boards like these.
This is isn't ptfe. It's polyurethane and is therefore easy to solder. PTFE you might have to strip before soldering.
>>
I just got a breadboard as a birthday gift but all I know how to do is how to solder and how to read a resistor.

What's a good book or youtube video series to look at to get started in circuitry.
>>
>>905992
http://www.allaboutcircuits.com/
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>>905992
the art of electronics isn't bad if you have a solid background in math. Otherwise, Forrest Mims has some amazing books.
this sticky also has some good information:
>>900738
http://pastebin.com/9UgLjyND

for book downloads:
avaxho.me
or the /sci/ wiki has a list of sites from which you can try to get books.
https://sites.google.com/site/scienceandmathguide/general/books
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>>905992
>Here's some calculators that can help

Can't post the links because it "Error: Our system thinks your post is spam. Please reformat and try again." and I'm not sure which link is the problem and chopping them up in various ways isn't working. So, here's an image with the links.

I blame shitty spammers for this problem.
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>>906061
or, if there's several links, you can just link to a pastebin with them.
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>>906061
>>905996
>>905994
Thanks guys, I really appreciate it.
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>>905187
Mooooom, the anons didn't like my joke/////
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>>904472
>Making breadboard wiring 'neat'.
>Completely ignore circuit design considerations making wires longer than they should be, even with a 780x circuit which is too simple to fail at making it perfect, but you failed at it.
>plugging 3,5mm jacks at random locations without being useful. otherwise it would probably be too clear that you don't fucking know what you're doing.
You sir are a retard, I'd recommend you to stop touching electronics ever again.
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>>906622
What is the circuit in the OP?
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How's this?
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>>906646
>circuit flags

Cute
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>>906652
Doing it for school, so they're required
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>>906627
There are some led's with transistor 'touch' switches, a terrible built 780x (probably 7805) voltage regulator circuit, a supercap and a led with a switch. However this is all noob rubbish, all the parts not taking part in previously stated circuits are for show, or junk, or retard-impression-material. (yes I mean those 3,5mm jackplugs) Also the breadboard is waay to big for such tiny little weenie-noob-circuits.
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>>906646
>jumping 5 times, instead of just once or twice.
>how is this?
Retarded
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>>906687
also those ic's want some 100n's
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>>906686
>(yes I mean those 3,5mm jackplugs)

Those are used for meter readings.
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>>904593
Whats with all the diodes?
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>>904773
Holy shit. Keked so hard. Thats so ghetto
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>>906774
https://en.wikipedia.org/wiki/Diode_logic
I'm coincidentally doing a VGA project like this guy >>903563 , but purely in hardware.
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>>906699
you don't need 3,5mm jacks for that and certainly no 2 on the same rail.
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>>907806
You do when you have multiple meters.
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>>907820
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>>907825
Nearly all my parts are salvaged stuff. Except the supercap and new larger LEDs. Also, that part you are showing has the wrong plugin.
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>>907827
So go salvage some banana plugs.
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>>905532
whats up with that big ass crystal
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>>907841
It is highly optimistic.
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>>907837
I'll just keep using what I have.
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>>907820
>I measure the voltage with two meters because one is not good enough
retard-alert
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>>907852
>those tight coils in the box
you trying to break the wire before use? Just please stop touching electronics, you are the most retarded guy I ever heard of. You're like doing everything wrong.
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>>907841
that's an oscillator
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>>908348
>tight coils

Pic related
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>>907841
It's a crystal oscillator. A crystal doesn't oscillate on its own, it controls a feedback loop through its resonance frequency. A crystal osc is the crystal and resonating circuit in one package.
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How do i make a useful thermostat that can output when it's too hot or too cold. I want the threshold to be determined by a variable resistor. I've been trying loads of different circuit designs which make sense in my head but on software they don't work at all. Has anyone made anything like this or know a website where I can get a circuit diagram?
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>>907852
In compsci when people have so many bad habits usually their teachers just force them to relearn the basics.
With you I think they'd just have to beat you up.
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>>908647
You should be able to do it with just a pair of comparators and a thermistor. Comparators compare two voltage levels and output 1 or 0 (TTL) depending on which is higher. Make a voltage divider with the thermistor and a resistor and compare to voltage dividers made from the variable ressistors.

If you want just one output that means below or above the specified range you build a window circuit, which is two comparators with their outputs OR gated together.
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>>908647
>>908708
Take this shit to /ohm/
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>>904472
Ya got me, OP

This one looks worse than it is because (a) the shitty hand-me-down battery holder is clamped onto the + rails through a button cell holder and (b) there are extra jumpers for scope wires.
Thread posts: 71
Thread images: 24


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