NBSN95 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 NBSN95 to rapidly deploy NB-IoT sensor node for their IoT solution.NBSN95 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 NBSN95, user needs to check if there is NB-IoT coverage in local area and with the bands NBSN95 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.

NBSN95 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. 

Features:

• STM32L072CZT6 MCU
• NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
• Pre-load bootloader on USART1/USART2
• MDK-ARM Version 5.24a IDE
• I2C, LPUSART1, USB, SPI2
• 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

Applications: 

• 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 BC95-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
• EEPROM:6KB
• Clock Speed: 32Mhz

Absolute Maximum Ratings:

• VCC: 0.5v ~ 3.9v
• Operating Tempature: -40 ~ 85°C
• I/O pins: 0.5v ~ VCC+0.5V

Common DC Characteristics:

• Supply Voltage: 1.8v ~ 3.6v
• Operating Tempature: -40 ~ 85°C
• I/O pins: Refer STM32L072CZT6 datasheet

Power Consumption:

• STOP Mode: 10 μA @ 3.3v
• See Power Analyze Document for more.

Battery:

• Li/SOCI2 unchargable battery
• Capacity: 8500mAh
• Self Discharge: <1% / Year @ 25°C
• Max continuously current: 500mA
• Max boost current: 2A, 1 second

DOCUMENTS:

NBSN95 Download Center

Package Includes:

• 1 x NBSN95 NB-IoT Sensor Node
  
• 1 x External NB-IoT antenna