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Dragino NBSN95A NB-IoT Sensor Nodes base on the Quectel BC35-G


The NBSN95A is a Long Range NB-IoT Sensor Node is used the Quectel BC35-G module to rapidly deploy NB-IoT sensor node for  IoT solution.

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The NBSN95A is a substitude version of Dragino NBSN95 due to IC shortage version. NBSN95A and NBSN95 has the same hardware performance and use the same image.

NBSN95A is a Long Range NB-IoT Sensor Node. It is designed for outdoor data logging and powered by 8500mAh Li/SOCl2 battery for long term use and secure data transmission. System Integrator can use NBSN95A to rapidly deploy NB-IoT sensor node for their IoT solution.NBSN95A is easy to program, create and connect things everywhere.

NarrowBand-Internet of Things (NB-IoT) is a standards-based low power wide area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage.

To use NBSN95A, user needs to check if there is NB-IoT coverage in local area and with the bands NBSN95A supports. If the local operate support it, user needs to get a NB-IoT SIM card from local operator and install NBSN95 to get NB-IoT network connection.

NBSN95A is an open source project. It is based on the STM32L072CZT6 ultra-low-power ARM® Cortex®-M0+ micro controller. Developers can get completely software and hardware design files and adapter for their projects. 



NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD

Pre-load bootloader on USART1/USART2

MDK-ARM Version 5.24a IDE


3x12bit ADC, 1x12bit DAC

20xDigital I/O

Open source hardware / software

IP66 Waterproof Enclosure

Ultra Low Power consumption

AT Commands to change parameters

Micro SIM card slot for NB-IoT SIM

8.5 Ah Battery for long term use


Wireless Alarm and Security Systems

Home and Building Automation

Automated Meter Reading

Industrial Monitoring and Control

Long range Irrigation Systems,etc.

NB-IoT Spec

  • Module: Quectel BC35-G
  • Support Bands
    • - B1 @H-FDD: 2100MHz
    • - B3 @H-FDD: 1800MHz
    • - B8 @H-FDD: 900MHz
    • - B5 @H-FDD: 850MHz
    • - B20 @H-FDD: 800MHz
    • - B28 @H-FDD: 700MHz
  • Protocol: CoAP, UDP, MQTT

MCU Spec

  • MCU: STM32L072CZT6
  • Flash:192KB
  • SRAM:20KB
  • Clock Speed: 32Mhz

Common DC Characteristics:

Power Consumption:

STOP Mode: 10 μA @ 3.3v

See Power Analyze Document for more.


Li/SOCI2 unchargable battery

Capacity: 8500mAh

Self Discharge: <1% / Year @ 25°C

Max continuously current: 500mA

Max boost current: 2A, 1 second

Package Includes:

1 x NBSN95A NB-IoT Sensor Node

1 x External NB-IoT antenna


Device Size: Device Size: 10 x 4.0 x 4.2 cm


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