Which board do I need? Answer 3 questions to find the right type
The four board types in one look
Size tip: the 2nd photo on each board shows it to scale next to an Arduino Uno (6.9 x 5.3 cm). Double sided boards have plated holes, so joints are stronger and pads lift less often. Etching copper clad needs ferric chloride, listed in the copper clad section.
About Green PCB, Double Sided (FR4)
Double sided green FR4 prototype boards: tinned pads on both sides with plated-through holes, 2.54 mm pitch. Solder from either side, good for dense builds and modules with headers. Sizes from 2x8 cm to 20x30 cm, plus an assorted pak.










