What exactly is a Solderless Breadboards and how do they work?
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Back in the day, prototyping a circuit required soldering all the parts together and seeing if it worked. This works okay when everything is soldered together perfectly, but if something goes wrong troubleshooting gets more difficult as you have to de-solder and re-solder different components in order to re-test the circuit.
A solderless breadboard works by having a big pattern of holes with spring-loaded metal contacts inside so that when you push a wire into the hole it makes good electrical contact as-if you had soldered it into that hole (but still being easy to pull out later). Solderless breadboard designs then connect a number of neighboring spring-holes together (usually a row of 5) so that you can connect up to five wires together just by pushing 5 wires into those 5 holes. This means that when you’re troubleshooting a circuit that isn’t working, when you see “Oh, this resistor is in the wrong place!” you just have to pull it out of the wrong holes and plug it into the right holes (instead of having to de-solder and re-solder it).
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