LSN50V2-D23 LoRaWAN 3-Channel Temperature Sensor Node 868MHz

The LSN50v2-D23 by Dragino is a 868 MHz waterproof LoRaWAN sensor node with three temperature sensors. The DS18B20 temperature sensors used measure in a range from -55°C to 125°C with a tolerance of ±0.5°C. The module has a 1.4m sensor cable attached, which terminates in three separate temperature probes. The probes and the cable are water-resistant and designed for long-term use. The module is powered by a 8500mAh Li-SOCI2 battery, which can last up to 10 years depending on measurement and transmission intervals. For more precise information, see "Battery Info" in the documentation. The LSN50 products have been developed to facilitate the rapid deployment of LoRa and IoT solutions at an industrial level. It is easy to program and easy to connect to other devices. The wireless part of the module is based on the SX1276/SX1278, which allows the user to send data over long distances at low data rates. It offers wide-band spread communication and high interference resistance with minimal power consumption. Applications include sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, temperature measurements, water level measurements, etc. The MCU part of the module uses a STM32l0x chip from ST. This offers USB 2.0 with a high-performance ARM® Cortex®-M0+ 32-bit RISC Core, clocked at 32MHz, a memory protection unit (MPU), high-speed embedded memory (192 Kbytes Flash program memory, 6 Kbytes EEPROM and 20 Kbytes RAM) and a wide range of advanced I/Os and peripherals. The Dragion IoT module with LoRa® technology is an open-source product. It is based on the STM32Cube HAL drivers. With customer application examples, the user can program the IoT module via USART1, USART2 or STLINK. The factory firmware supports the LoRaWAN 1.0.2 specification, and the user can use AT commands to set it up and use it directly for their own project. 

Recommended accessories:

• Mini USB UART FTDI Programmer 3.3/5V USB Serial
• For flashing new firmware: ST-LINK V2 ST-LINK V2 Debugger Programmer for STM8 STM32
• WisGate Edge Lite 2 LoRaWan Multi-Channel Gateway

Features:

• LoRaWAN 1.0.3 A Class 
• Baud rate configurable 
• IP66 water and dustproof housing 
• Temperature alarm function 
• Low power consumption 
• AT commands to set parameters 
• 8500mAh battery with long life 

Documentation:

• User Manual and  Datasheet

Technical details:

• Manufacturer: Dragino 
• Manufacturer SKU: LSN50v2-D23-EU868
• IP66 waterproof housing (screws and cover screws must be tightened correctly)
  
• Temperature sensor: DS18B20 
• Temperature measuring range: -55°C - 125°C  
• Temperature tolerance: ±0.5°C (max ±2.0°C) 
• Temperature resolution: 0.01°C 
• Frequency: 868 MHz 
• Standby power consumption: 20µA 
• Transmission power consumption: 125mA @ 20dBm, 44mA @ 14dBm 
• Digital I/O: 18 
• LoRa Modem: SX1276/78 
• MCU: STM32L072CZT6 
• Cable length: 145cm 
• Dimensions: 124x63x42mm 
• Weight: 295g 

Package Includes:

• 1x LSN50V2-D23 LoRaWAN 3-Channel Temperature Sensor Node 868MHz 
• 1x External 868MHz Antenna