Nordic's cellular-IoT kit for the nRF9160 LTE-M/NB-IoT/GNSS SiP.
GPIO
I2C
SPI
UART
Bluetooth
SWD
Processor
nRF9160 SiP, Cortex-M33 @ 64 MHz
Logic
3.3 V GPIOTreat as not 5 V tolerant
Power
USB (debug, programming, and power)
Format
Arduino Uno R3-compatible shield form factor
Before you wire
3 cautions
nRF9160 GPIO is routed through analog switches controlled by the onboard nRF52840 — signals can be silently rerouted to onboard LEDs/buttons if the switch state isn't configured as expected (hardware user guide).
Nordic recommends the newer nRF9151 DK for new designs; this is a mature previous-generation platform.
The cellular modem needs correct SIM and antenna setup before it will attach to a network.