Gikfun Mini Solderless Prototype Breadboard for Arduino Shield (Pack of 7pcs) EK2137

These little things are pretty cool and I like how they connect. The wires are easy to push into the holes and got to love the colors. I use this for a little projects that I want to throw inside a box.

They're small so they will fit in small/tight places.I used to solder LED current limiting resistors in series with the wire, then, cover it with heat shrink, this works fine until you want to change the resistor's value (make the LED brighter or dimmer).These mini-breadboards only have 5 rows and on the bottom side, there are 2 little nubs, which I'm guessing are for some small self-tapping screws, I have no use for these so I just grind them off and attach them with hot melt glue. They are also useful for let's say positive and negative junctions.I like the and they're not very expensive!

These things are amazing purchase if you plan on using sensors that may or may not have conflicting i2c addresses OR you need to mount the sensor on a longer cable away from a breadboard and you don't want to solder it.You get enough with one pack to do most of what you need to do, so 1 pack is great.

I am happy with the size, but I am unhappy there is a screw hole protruding from the back.I understand the utility of the screw hole, but it won't lay flat which is disappointing.

The little boards are exactly what they say they are. There are no bad connections. All holes make proper contact. I use mine to hold LEDs for decorations. They work well, as expected.

Holes are too big, pins are not very snug at all.

Sometimes you just need to connect a few pins.

I don't know how these are supposed to work as there isn't a diagram.In my case it's all one point source. I checked resistance in all directions and everything is connected in the x, y and diagonal direction. That is everything is connected.I wanted to hook up a buck converter by popping it in and hooking up accordingly, but that's not possible with this as every pin is connected to every other pin.They also don't grab too well, I could forgive and correct for that.