I was wondering what type of board connector (male or female) I should use on a perfboard full of test LEDs (to see IO outputs). In other words, should I use a male-male headered jumper ribbon with a female receptacle strip soldered to the LED board or should I use a male--female headered jumper ribbon with a male pin strip soldered to the LED board?
I like using female headers on the PCB and Dupont male connectors for the cable. (as on an Arduino UNO).
On the other hand if there are two rows then male pins on the PCB and ribbon IDC for cabling is best. IMO.
Thank you for your advice. I was wondering if you might know something else. What can I search (wording) on amazon or wherever to find a double row 2.54mm cable end (like the picture you posted, but double rowed (2x20 or 2x18 or something like that? I want this in order to take the 1x1 housing ends off of a ribbon cable and insert them into this double row housing in order to mate with the double row of pins on the arduino mega 2560. When I try search, however it seems like all I can find are receptacles to solder to a board, not cable ends. I know that these are made, but the kit that I bought only has up to a 2x4 size of dupont cable end housing.
Or these to use the current "Dupont" pins:
Those dupont connectors are so difficult and time consuming to crimp manually. It's not so bad with a small number of pins, but the hassle increases exponentially with the number of pins. You can expect to spend at least a couple of frustrating hours on making that one cable. You can get wires with the connector pre-crimped, and those are easy enough to insert into the housings, but I haven't seen them in the male variant and I've also only found them in one length (It's just the standard 40 pc female to female jumper wire set without the 1p housings added).
The IDC are super fast. But I think you'd need to use some long male headers to make the connection between the female IDC connector and the female header on the Mega. Like these:
I think a cheap IDC tool is about the same price as a cheap dupont crimp tool, but the cheap IDC tool will give you perfect results while the cheap dupont tool will likely produce lower quality crimps than the expensive tool brands. And you can even make IDC cables without a special tool. It's only a matter of pressing the two halves together completely
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