> For the complete documentation index, see [llms.txt](https://docs.conexiotech.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.conexiotech.com/master/stratus-overview-1.md).

# Stratus Pro nRF9161 Overview

## Board Layout

![Conexio Stratus Pro nRF9161 V1.0 top view.](/files/EgcKxmU2z0MmTatUNVAR)

![Conexio Stratus Pro nRF9161 V1.0 bottom view.](/files/2ogLx7CHe5kaq83g9Raw)

## Technical specifications and features

Most of the specifications outlined below are based on Nordic's [<mark style="color:red;">nRF9161 Product Specification</mark>](https://www.nordicsemi.com/Products/nRF9161).

**MCU**: Latest Gen Nordic nRF9161 SiP

* ARM Cortex-M33 with 1MB Flash
* 256kB RAM
* ARM® TrustZone®
* ARM® Cryptocell 310
* Up to 4x SPI, I2C, and UART with Easy DMA
* I2S w/ EasyDMA
* 4x PWM with EasyDMA
* 12bit SADC with EasyDMA
* 2x RTC
* PPI (Programmable peripheral interconnect) interface

**Modem**

* Transceiver and baseband
* 3GPP LTE release 14 LTE-M/NB-IoT support
* DECT NR+ ready
* GPS/GNSS receiver
* RF Transceiver for global coverage supporting bands:
* B1, B2, B3, B4, B5, B8, B12, B13, B17, B18, B19, B20, B25, B26, B28, B65 (new), B66, and B85 (new)
* Supports 4FF Nano SIM
* Pre-programmed MCUBoot bootloader

**nPM1300 Power Management IC**

* 800 mA battery charger
* Dual 200 mA buck DCDC regulator
* Battery fuel gauge controlled via I2C
* Battery charge status and protection

**Energy harvester IC**

* BQ25185 battery charger with solar input from Texas Instruments
* Charge Vin: 3V to 18V
* Dynamic Power Management
* Supports battery types Li-ion, Li-Poly, and LiFePO4 chemistries
* Integrated full battery protection

**Board Operating Power Supply**

* Operating range 1.8 to 5.5V
* External LiPo battery connection (2 Pin JST type)
* Maximum output current: 800mA

**Stratus Output Voltages (Accessible via Headers)**

* 1.8V
* 3.3V
* 5V (VUSB)
* VBAT

**USB-TYPE-C**

* For USB-to-Serial, DFU, and application firmware programming and debugging plus LiPo battery charging

**Debugger & Programmer**

* Supports J-Link and CMSIS-DAP-based programmers
* Onboard 10-pin 0.05" (1.27mm) SWD/JTAG pin connector

**User I/O**

* Feather compatible header
* 28 user-programmable GPIOs
* 2 x push buttons (1 x Reset, 1 x user-programmable)
* 1 x user-programmable LED

**Antenna connections**

* 1 x U.FL for LTE-M/NB-IoT
* 1 x U.FL for passive GPS antenna

**Onboard sensors**

* STMicroelectronics LIS2DH MEMS digital output motion sensor: ultra-low-power high-performance 3-axis Femto accelerometer
* Battery fuel gauge
* Temperature sensor (enabled by nPM1300)

**External Storage**

* 16 KBit I2C EEPROM memory (24CW160T)

**External Peripheral Interface**

* Stratus Pro board has a QWIIC connector to interface external shields, sensors, and much more.

**Power switch**

* SPDT slide switch for turning ON/OFF the power to the Stratus Pro board

**SIM Compatibility**

* 4FF Nano SIM card holder
* eSIM footprint to solder your own
* Software-based SIM support

**Prepaid Data**

* 500 MB of cellular data
* 250 SMS
* 10-year data validity
* Service available in 100+ countries (LTE + NB-IoT)

**Physical Size**

* 66.04 mm x 25.40 mm

## Download the Full Datasheet

{% file src="/files/TFbjq6Lnqei75ZIo4Occ" %}
Stratus Pro Reference Manual
{% endfile %}

## What's included in the box

Congratulations on receiving your Conexio Stratus Pro kit. Your package includes:

**Hardware**

* 1 x Conexio Stratus Pro dev kit.
* 1 x 1NCE IoT SIM card&#x20;
* 1 x Safety instructions card

**Preloaded Firmware**

Out-of-the-box, Stratus Pro kit comes with pre-loaded firmware that periodically blinks the LED.&#x20;