Arduino Proto Shield Rev3 (Uno)

Arduino Proto Shield Rev3 (Uno) offers an Uno-sized prototyping playing field, making it easy to design and implement custom circuits for any Uno-based project using Surface Mount (SMD) or Through-Hole (TH) components. The SMD area is designed for a maximum of 24-pin SOIC ICs, and the TH area contains plenty of space for the needed components around your project. A mini breadboard (not included) can also be connected to the prototyping area for solderless operation. The prototyping area includes two power lines (IO_REF and GND), two LEDs pads, and SPI signals breakout pads for boards with SPI only on the ICSP (In-Circuit Serial Programming) connector, such as the Arduino Zero.