The nRF9161 DK features an onboard programming and debugging
solution.
Hardware drawings
The nRF9161 DK hardware drawings show both sides of the DK.
Block diagram
The block diagram illustrates the functional architecture of the nRF9161 DK.
Power supply
The DK has a flexible and configurable power supply system to allow software development and testing using different power sources and to facilitate accurate power consumption measurements.
GNSS
The nRF9161 DK has a dedicated GNSS port to support global navigation. GNSS functionality requires support in the onboard network protocol firmware.
GPIO interfaces
Access to the nRF9161GPIOs is available from connectors P2, P3, P4, P6, and P24. The nRF9161 DK supports the Arduino UNO interface.
Board control
The interface MCU controls the analog switches on the DK that define the board's operation.
Buttons and LEDs
The nRF9161 DK has four LEDs and four buttons for user interaction. By default, they are connected to the nRF9161GPIOs as shown in the following table.
External memory
The nRF9161 DK has a 256 Mb (32 MB) external flash memory.
Debug input and trace options
The primary debug interface on the nRF9161 DK is the Segger OB debugger available through the USB port. If a power supply other than USB is used on the DK, this functionality is disabled.
Debug out for programming external boards
The nRF9161 DK supports programming and debugging external boards with nRF51 Series, nRF52 Series, nRF53 Series, and nRF70 Series SoCs and nRF91 Series SiPs.
Debug output
The nRF9161 DK supports programming and debugging external boards with Nordic SoCs and SiPs.
Signal routing switches
Several of the GPIO signals of the nRF9161 DK are routed through analog switches for onboard functionality or for having them available on the pin headers for external circuitry or Arduino-type shields.
SIM and eSIM
The nRF9161 DK is designed to support regular SIM and eSIM. For this purpose, it has a pluggable SIM card socket (J5) that takes a nano-sized SIM (4FF) and a non-populated footprint for an eSIM (MFF2).
SiP enable
The nRF9161SiP can be enabled by pulling pin 101 high or disabled by pulling pin 101 low. By default, the enable signal is pulled high by resistor R1.
Solder bridge configuration
The nRF9161 DK has a range of solder bridges for enabling or disabling functionality on the DK. Changes to these are not needed for normal use of the DK.