It is hard to remember how expensive an electronic hobby used to be. It wasn’t long ago, for example, that a solderless breadboard was reasonably expensive and was likely to have some sort of baseboard. The nicer ones even had a power supply or some simple test instruments. While you can still buy that sort of thing today, the low cost of bare breadboards have made them much more common. [Sebastian] decided to use his 3D printer to give those cheap breadboards a nice home.
The design looks great, and frankly isn’t much of a technical triumph, but it is useful and clean looking. The build uses some banana jacks, a switch, an LED, a 9V battery, and a common small power supply module. Of course, you also need a few breadboards.
The 9V battery fits snug inside, although we might have added an optional AC adapter jack. [Sebastian] left a lot of space inside, so we thought about how feasible it would be to make a mating storage box that would fit underneath and keep parts away from the electronics.
There are actually a lot of quick mods you could do on this design. A cheap meter module would let you measure the current draw, for example. You could put a few pots in that blank spot, also. We might add a mating dock to the top so you could plug in option boards that had, for example, an Arduino, an ESP8266, or a Raspberry Pi for different projects.
We always keep a stock of 5V LEDs to reduce the number of parts we need on the breadboard, but you could make your own if you prefer. If you don’t mount pots in the enclosure, this little board is handy enough.
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