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nRF91M1 模组

超低功耗 LTE M / NB IoT 模组

nRF91M1 是一款紧凑、预认证、超低功耗的蜂窝物联网连接模组，支持 LTE M 和 NB IoT。作为专用智能调制解调器方案，它预装了 Nordic 成熟的串行调制解调器应用程序与调制解调器固件，可通过简洁易用的 AT 指令或 PPP 接口由任意外部主机 MCU 轻松控制。

nRF91M1 集成 GNSS 和基于蜂窝网络的定位功能，无缝集成 nRF Cloud，进一步简化开发，降低部署风险，加速从原型到量产的规模化进程。

nRF91M1 直接基于全球认证的 nRF9151 平台及其成熟可靠的软件栈打造，专为需要或偏好使用独立主机 MCU 的场景设计，可简化开发并加快产品上市速度。它为外部应用提供便捷的蜂窝联网扩展方式，也可用于迁移至 Nordic nRF91 系列，获得比现有方案更小巧、更低功耗、更成熟的解决方案。

核心优势

  • 智能调制解调器，具备高级功能，可通过 AT 指令或 PPP 由所选主机 MCU 轻松控制 
  • 支持 GNSS 与蜂窝网络定位，实现高精度定位与超低功耗追踪 
  • 全球认证，基于成熟可靠的 nRF9151 软件栈，缩短项目周期并降低部署风险 
  • 超低功耗运行，即使资源高度受限的应用也能实现全球蜂窝联网 
  • 面向未来的连接能力，支持 LTE M 和 NB IoT，可长期用于面向 5G 的物联网部署
  • 开箱即用支持 nRF Cloud，通过简洁的 AT 指令即可启用低功耗定位服务与调制解调器 OTA 升级

nRF91M1 型号

nRF91M1 仅提供单个全球认证模组版本，简化产品设计与全球部署。

  • nRF9M1-LACA

全球通用版本，支持完整 LTE 频段与各类认证，适用于全球范围的 LTE M 和 / 或 NB IoT 部署。

如需了解更多 nRF91M1 信息或成为首批客户，请联系您的区域销售经理。

 

 

 

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Key features

Pre-certified connectivity module for LTE-M and NB-IoT with GNSS

LTE-M and NB-IoT modem with 3GPP Rel. 14 support

700-2200 MHz LTE band support

Power Class 5 20 dBm

Power Class 3 23 dBm

Certified for global operation

Extensive peripheral 

Secure firmware updates via nRF Cloud

Resilient and geographically focused supply chain

nRF91x1 SiP LTE firmware 

Programming app available in nRF Connect for Desktop

Selected version
2.0.4 nRF91 firmware binaries

Changelog:

2.0.4 nRF91 firmware binaries

This release support nRF9131 LACA A0, nRF9151 LACA A0/A1, and nRF9161 LACA A0 SiP modules.

This release does not support nRF9160 SiP.

Highlights: 

Maintenance release with new features, and corrections and improvements for service reliability.

Cellular IoT

  • Added a socket option for TLS extension maximum fragment length negotiation. This feature requires corresponding support in the nRF Connect SDK.
  • Fixed a modem instability that could occur when a TCP server connection was reset by the client.
  

A complete list of new functionality, changes and bug fixes is in the release notes found here or inside the .zip file.

This release is aligned with v1.4 of the nRF91x1 Cellular AT Commands Reference Guide.

Some of the new features requires support also from the nRF Connect SDK, and it is recommended to ensure compatibility with the appropriate version of the SDK.

It is advisable to use the latest version of nRF Connect for Desktop and nRF Connect Programmer tools.

 

2.0.3 nRF91 firmware binaries

This release support nRF9131 LACA A0, nRF9151 LACA A0/A1, and nRF9161 LACA A0 SiP modules.

This release does not support nRF9160 SiP.

Highlights: 

Maintenance release with new features, and corrections and improvements for service reliability.

Cellular IoT

  • Added support for E‑UTRAN LTE‑M and NB‑IoT Band 106
  • Improved Rx‑only mode (AT+CFUN=2): supports network search/selection, emits +CEREG and %MDMEV SEARCH statuses, adds AT%NCELLMEAS, and improves AT%CONEVAL performance
  • Introduced AT%ENVEVAL to scan and evaluate specified PLMNs and report signal quality via the AT interface
  • Added a simplified AT%XRFTEST TX test mode; full capabilities remain in the production test firmware
  • Added APDU trace support in the public trace database
  • Added a power‑saving safeguard to prevent staying connected to cells without usable connectivity; configurable via AT%FEACONF
  • Added Positioning Reference Signal (PRS) data capture for application‑level processing (requires nRF Connect SDK support)
  • Corrections and improvements for service reliability
  

A complete list of new functionality, changes and bug fixes is in the release notes found here or inside the .zip file.

This release is aligned with v1.4 of the nRF91x1 Cellular AT Commands Reference Guide.

Some of the new features requires support also from the nRF Connect SDK, and it is recommended to ensure compatibility with the appropriate version of the SDK.

It is advisable to use the latest version of nRF Connect for Desktop and nRF Connect Programmer tools.

 

2.0.2 nRF91 firmware binaries

This release support nRF9131 LACA A0, nRF9151 LACA A0, and nRF9161 LACA A0 SiP.

This release does not support nRF9160 SiP.

Highlights: 

General

  • Maintenance release with corrections for service reliability and new features.

Cellular IoT

  • Delayed IPv6 updates until after PSM sleep for improved power efficiency.
  • Lets applications select specific permitted networks, offering greater connectivity control.
  • Notifies when (Release Assistance Indicator) RAI options are available during cellular connections.
  • Enables device power class (power class 5 or 3) adjustments with a locking option.
  • Added support for a new cipher suite to enhance security.
  • Introduces SIM card power-saving options to minimize power usage.
  • Option to deactivate the SIM card when no network is detected, saving power, and reducing unnecessary searches.

Location services / GNSS

  • Reduces position outliers, especially in weak signal conditions, for more accurate location data.

 

A complete list of new functionality, changes and bug fixes is in the release notes found here or inside the .zip file.

This release is aligned with v1.2 of the nRF91x1 Cellular AT Commands Reference Guide.

Some of the new features requires support also from the nRF Connect SDK.

It is recommended to use the latest version of nRF Connect for Desktop and nRF Connect Programmer tools.

 

2.0.1 nRF91 firmware binaries

This release support nRF9131 LACA A0, nRF9151 LACA A0, and nRF9161 LACA A0 SiP.

This release does not support nRF9160 SiP.

Highlights: 

General

  • Added support for the nRF9151 LACA A0 SiP module.
  • Added support for IMEI read, write, and test operations through nRF Util development tool.

Cellular IoT

  • Introduced support for power class 5, enabling a 20dBm TX transmitter mode with nRF9151.
  • Socket option for power optimized way to resume data transmission after PDN disconnect and connect procedures. 
    • This feature is particularly useful for DTLS + CID and UDP connections.
  • Enhanced network selection optimization during initial search.

Location services / GNSS

  • Improved fix accuracy and availability in periodic fixes when the fix period is 60s or less.
  • Updated speed and altitude operational envelope limits for dynamics modes to further reduce possible GNSS outliers.
  • Updated QZSS health data handling to match IS-QZSS-PNT-005.
  • Addressed modem instability when GNSS 1PPS functionality was turned on/off repeatedly.

 

A complete list of new functionality, changes and bug fixes is in the release notes found here or inside the .zip file.

This release is aligned with v1.1 of the nRF91x1 Cellular AT Commands Reference Guide.

Some of the new features requires support also from the nRF Connect SDK.

It is recommended to use the latest version of nRF Connect for Desktop and nRF Connect Programmer tools.

 

2.0.0 nRF91 firmware binaries

This release support nRF9131 LACA A0 and nRF9161 LACA A0 SiPs, not nRF9160 SiP.

Highlights: 

Cellular IoT

  • Improved network selection when using MVNO subscriptions, leading to efficient power utilization.
  • Power consumption enhancements and quick recovery from unexpected network registration issues, ensuring seamless communication.
  • Improvements for application-driven monitoring of data transmission over the air interface, providing better insights and control.
  • Improved reliability and increased data throughput for an optimized user experience.
  • Enhanced modem error recovery mechanisms and reduced current consumption in error situations.
  • Added support for limited %XRFTEST RX tests.

Location services / GNSS

  • GNSS position outlier reduction, particularly in weak signal conditions, for more accurate location information.
  • GNSS TTFF and sensitivity performance improvements, ensuring quicker and more reliable position fixes.
  • Optimized GNSS duty cycle for reduced power consumption, extending battery life.

A complete list of new functionality, changes and bug fixes is in the release notes found here or inside the .zip file.

This release is aligned with v1.0 of the nRF91x1 Cellular AT Commands Reference Guide.

Some of the new features requires support also from the nRF Connect SDK.

It is recommended to use the latest version of nRF Connect for Desktop and nRF Connect Programmer tools.

 

nRF9151 SiP NTN firmware 

Programming app available in nRF Connect for Desktop

Selected version
1.0.0 nRF91 firmware binaries

Changelog:

1.0.0 nRF91 firmware binaries

Note:

MFW_nRF9151-NTN is only compatible with nRF9151 LACA A1A (module labeled: nRF9151 LACA A1)

It is not compatible with nRF91 devices: nRF9151 LACA A0A, nRF91M1, nRF9161, nRF9131 and nRF9160.

V1.0.0 feature summary:

  • 3GPP R14 LTE-M and NB-IoT - Feature baseline MFW_nRF91x1_2.0.4
  • Selected 3GPP R17 IoT-NTN (NB-NTN) features
  • GPS/QZSS
  • IPv4/6
  • TCP/UDP
  • NIDD

This release aligns with v1.0 of the nRF91x1 NTN AT Commands Reference Guide.

A Complete list of functionality, changes, and bug fixes in v1.0.0 of this firmware can be found in the release notes found inside the .zip file download.

To get started with NTN and this firmware, please go to our evaluate NTN page to find additional documentation and links to technical material and support from different NTN providers.

Bill of Materials

Selected version
v1.1

Changelog:

v1.1

Changelog:
  • First release of the Bill of Materials (BOM) for the nRF9151

Production Test Image 

Programming app available in nRF Connect for Desktop

Selected version
2.3.8 [PTI] nRF91 firmware binaries

Changelog:

2.3.8 [PTI] nRF91 firmware binaries

The mfw-pti_nrf91x1 is a Production Test Image (PTI) designed for the modem subsystem of nRF9131 LACA A0, nRF9151 LACA A0/A1 and nRF9161 LACA A0 SiP modules.

It facilitates calibration, testing, and configuration features for production test purposes.

The mfw-pti_nrf91x1 firmware is exclusively designed for production testing and does not include any protocol signaling capabilities.

This release version is aligned with the v1.5 of nRF91x1 Production Test AT Commands reference guide.

Use the latest versions of nRF Connect for Desktop and the nRF Connect Programmer application.

Changelog:

  • Added RF operation and test support for Non‑Terrestrial Network (NTN) bands 23, 255, and 256
  • Added RF operation and test support for E‑UTRAN LTE‑M and NB‑IoT band 106
  • Added RF operation and test support for DECT NR+ Band 4
  • Fixed a regression causing elevated power consumption in the default state after the modem power up (introduced in mfw-pti_nrf91x1_2.3.7).
  • Miscellaneous bug fixes; see release notes for details

More details in the release notes.


2.3.6 [PTI] nRF91 firmware binaries

The mfw-pti_nrf91x1 is a Production Test Image (PTI) designed for the modem subsystem of nRF9131 LACA A0, nRF9151 LACA A0 and nRF9161 LACA A0 SiP modules.

 

It facilitates calibration, testing, and configuration features for production test purposes.

The mfw-pti_nrf91x1 firmware is exclusively designed for production testing and does not include any protocol signaling capabilities.

This release version is aligned with the v1.4 of nRF91x1 Production Test AT Commands reference guide.



It is advisable to use the latest versions of the nRF Connect and nRF Connect Programmer tools.

 

Changelog:

  • The power class configuration for the nRF9151 is now dynamic and includes a locking 
  • Support has been added for reading the device attestation token using the AT command AT%ATTESTTOKEN.
  • Updated AT%XRFTEST TX test to support a wider range of Cellular IoT cell bandwidths.
  • Updated AT%XRFTEST TX test to support DECT NR+ Listen Before Talk (LBT).
  • Updated AT%XGPIOTEST to support MIPI IO-pin testing.

 

More details in the release notes.


2.3.3 [PTI] nRF91 firmware binaries

The mfw-pti_nrf91x1 is a Production Test Image (PTI) designed for the modem subsystem of nRF9131 LACA A0, nRF9151 LACA A0 and nRF9161 LACA A0 SiP modules.

 

It facilitates calibration, testing, and configuration features for production test purposes.

The mfw-pti_nrf91x1 firmware is exclusively designed for production testing and does not include any protocol signaling capabilities.

This release version is aligned with the v1.2 of nRF91x1 Production Test AT Commands reference guide.



It is advisable to use the latest versions of the nRF Connect and nRF Connect Programmer tools.

 

Changelog:

  • Added support for the nRF9151 LACA A0 SiP module
  • Added support for IMEI read, write, and test operations through nRF Util tool

 

More details in the release notes.


2.3.1 [PTI] nRF91 firmware binaries

The mfw-pti_nrf91x1 is a Production Test Image (PTI) designed for the modem subsystem of nRF9131 LACA A0 and nRF9161 LACA A0 SiP modules.

 

It facilitates calibration, testing, and configuration features for production test purposes.

The mfw-pti_nrf91x1 firmware is exclusively designed for production testing and does not include any protocol signaling capabilities.

This release version is aligned with the v1.1 of nRF91x1 Production Test AT Commands reference guide.



It is advisable to use the latest versions of the nRF Connect and nRF Connect Programmer tools.