Access to the nRF5340 GPIOs is available from connectors P2, P3, P4, P5, P6, and P24.
The P1 connector provides access to ground and power on the nRF5340 Preview Development Kit (PDK) board.
Some of the signals are also available on connectors P7, P8, P9, P10, P11, and P12, which are on the bottom side of the board. By mounting pin lists on the connector footprints, the nRF5340 PDK board can be used as a shield for Arduino motherboards1 or other boards that follow the Arduino standard.
For easy access to GPIO, power, and ground, the signals can also be found on the through-hole connectors P13–P17.
Some pins have default settings:
When the nRF5340 PDK board is used as a shield together with an Arduino standard motherboard, the Arduino signals are routed as shown in the figure below.