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