The Dragino SDI-12-LB is a SDI-12 to LoRaWAN Converter designed for Smart Agriculture solution.

SDI-12 (Serial Digital Interface at 1200 baud) is an asynchronous serial communications protocol for intelligent sensors that monitor environment data. SDI-12 protocol is widely used in Agriculture sensor and Weather Station sensors.

SDI-12-LB has SDI-12 interface and support 12v output to power external SDI-12 sensor. It can get the environment data from SDI-12 sensor and sends out the data via LoRaWAN wireless protocol.

The LoRa wireless technology used in SDI-12-LB allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.

SDI-12-LB is powered by 8500mAh Li-SOCI2 battery, it is designed for long term use up to 5 years.

Each SDI-12-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.

Features:

• LoRaWAN 1.0.3 Class A
• Ultra-low power consumption
• Controllable 5v and 12v output to power external sensor
• SDI-12 Protocol to connect to SDI-12 Sensor
• Monitor Battery Level
• Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
• Support BLE and LoRaWAN remote configure.
• Support wireless OTA update firmware
• Uplink on periodically
• Downlink to change configure
• 8500mAh Battery for long term use

Applications: 

• Smart Agriculture

Micro Controller:

• MCU: 48Mhz ARM
• Flash: 256KB
• RAM: 64KB

Common DC Characteristics:

• Supply Voltage: 2.5v ~ 3.6v
• Support current: 5V 300mA, 12V 100mA
• Operating Temperature: -40 ~ 85°C

LoRa Spec:

• Frequency Range,  Band 1 (HF): 862 ~ 1020 Mhz
• Max +22 dBm constant RF output vs.
• RX sensitivity: down to -139 dBm.
• Excellent blocking immunity

Current Input Measuring :

• Range: 0 ~ 20mA
• Accuracy: 0.02mA
• Resolution: 0.001mA

Voltage Input Measuring:

• Range: 0 ~ 30v
• Accuracy: 0.02v
• Resolution: 0.001v

Battery:

• Li/SOCI2 un-chargeable battery
• Capacity: 8500mAh
• Self-Discharge: <1% / Year @ 25°C
• Max continuously current: 130mA
• Max boost current: 2A, 1 second

Power Consumption:

• Sleep Mode: 5uA @ 3.3v
• LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm

DOCUMENTS:

• DataSheet, Document Base
  
• User Manual -- Online Latest
• Shared Folder for all Dragino Products