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If you need to connect a DC power wall wart to a board that doesn’t have a DC jack - this fastests and simplest method!
On stock: 60
There is a 2.1/5.5mm DC socket on one end, and a screw terminal block on the other. The terminals are labeled with positive/negative assuming a positive-tip configuration (which is the most common).
Simplest method to get DC to Your breadboard if You have classic power supply with 2.1/5.5 jack.
We have similar jack 2.1/5.5 with screw terminals
Once, twice in month we will send You info about new products, products on sale and news from Arduino and DIY world.