I bought this kit for breadboard prototyping because the product description said "schematic, breadboards and arduino". While they may be fine for a Vero board or other thin breadboard, the pins are too short to work with an 820 hole breadboard like https://www.amazon.com/gp/product/B01EV6LJ7G (or even make contact with him). / Ref.=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1 . Look for another brand if you want to use this one.
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