Are round or square headed jumper cables better?
I bought DuPont cables for jumpers. The pins are round as are the sleeves, you can choose which ends the cable has and peel off as many lines as you want. Check them out. Square header pins are bigger and don't fit breadboards for example.
Well, obviously, cables that work are better than cables that don't work. That's the important thing, not the shape!
They fit ok for me...
Are you referring to the round vs square plastic housing for the jumper cable connectors? I prefer the square housings, because the ones I have used are sized correctly to fit 0.1" spaced headers, while the round housings are too big to fit together nicely.
Quality of cables is anywhere from excellent to garbage in either style, depending on where you get them. Some even use aluminum wire which breaks easily.
What holes are they too big for? I'm thinking of those square header pins, never saw a jumper with a square pin that I recall.
My personal preference for solderless breadboards is 22 gauge solid copper wire, although on a good breadboard 24 gauge solid wire from old telephone cable also works nicely, may be a bit small for low quality boards.
All my jumpers are like that with a square pin. You have to make sure you don't try and force it into the solderless bread board at an angle ans that will stretch the connector socket in the bread board which will reduce the time they will be too loose to make proper connection.
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