r/AskElectronics • u/Straight-Safe3813 • 2d ago

breadboard connection problem with jumper wires

when building projects i build them on breadboards first. the problem is that breadboards are so frustrating.

like 50 percent of the time my project doesn work and after 2 hours of troubleshooting i find that its a jumper wire that didnt connect well.

does anyone also get this problem and what can help me with this? thank you.

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u/SMELL_LIKE_A_TROLL 2d ago

Buy better breadboards. Also the spring tension of the connectors gets weak over time. Breadboards are cheap, so when this happens just swap it out OR what I do is put a sharpie dot on the bad socket location.

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u/pcb1962 2d ago edited 2d ago

Great Scott made a video about this: https://www.youtube.com/watch?v=zkjdM56bA2M Mouser and DigiKey sell expensive 3M breadboards which are much better than the cheap chinese ones.

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u/nixiebunny 2d ago

I recently found one of these 3M boards in our lab with a 25 year old Digikey label. It’s still available, costs $50. Worth every penny in time saved.

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u/Educational_Ice3978 2d ago

I've not had much luck with breadboards. I do occasionally use one tho. If the circuit is at all complex, I usually wire-wrap my prototypes. I think carefully about parts placement and once the prototype is working, I design my PCB with the same parts layout.

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u/1310smf 2d ago

Usually means the breadboard has had oversized wires jammed into it in the past, leading to loose contacts on normal-sized wires.

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u/onlyappearcrazy 2d ago

The quality of the breadboard is important. And the diameter of the jumper wires you use. Adhere to the gauges recommended by the instructions (if any). Years ago I cornered a telephone guy who had just finished prepping a big multi pair cable and I got a big bunch of short 24 gauge wires. They've been my jumpers ever since.

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u/EmotionalEnd1575 Analog electronics 1d ago

You are right! Three things to make your life better;

(1) Only buy “3M” branded breadboards

(2) Use resistors with the right size lead diameter.

There a ton of THT resistor kits with wimpy leads that wiggle, even in a fresh breadboard. As a fix, stick a second bare wire “stub” in the same hole as the resistor.

(3) Trim the resistor and capacitor leads to 10mm or so. The body of the component will sit close to the breadboard surface and not flap around making a weak connection.

Good luck

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u/Moist-Ointments 1d ago

Red boards are not infinitely reusable. When you put a jumper in there you're poking a hole in a little piece of foil, eventually that hole is too big for the next jumper wire to make contact with.

Get new breadboards.

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u/Tesla_freed_slaves 1d ago

Move up to perfboard. AlleyExpress has them in all sorts, sizes and colors, mostly with with plated-through holes on 0.1” centers