Dragino SDI-12-LS - SDI-12 to LoRaWAN Converter EU868

The Dragino SDI-12-LS 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-LS 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-LS 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-LS is powered by solar powered + li-on battery it is designed for long term use up to 5 years.

Each SDI-12-LS 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.

Micro Controller:

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

Common DC Characteristics:

    Supply Voltage: Built-in Battery, 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

Power Consumption:

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