SDI-12-LS a solar powered SDI-12 to LoRaWAN Converter

The 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 sensors and Weather Station sensors.

SDI-12-LS has an SDI-12 interface and supports 12v output to power an external SDI-12 sensor. It can get the environment data from the SDI-12 sensor and send out the data via LoRaWAN wireless protocol.

The LoRa wireless technology used in SDI-12-LS allows the 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 a solar + Li-ion battery it is designed for long-term use up to 5 years.

Each SDI-12-LS is pre-loaded with a set of unique keys for LoRaWAN registrations, register these keys to the 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 configuration.

Support wireless OTA update firmware

Uplink on periodically

Downlink to change configure

Solar panel + 3000mAh Li-ion battery

Specification

MicroController:

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

Battery:

Solar panel + 3000mAh Li-ion battery 

Capacity: 3000mAh

Self-Discharge: <1% / Year @ 25°C

Max continuous current: 130mA

Max boost current: 2A, 1 second

Power Consumption:

Sleep Mode: 5uA @ 3.3v

LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm

Applications: 

Smart Agriculture

Package Includes:

SDI-12-LS SDI-12 to LoRaWAN Converter

Dimension and weight:

Device Size: 195 * 125 * 55 mm

Device Weight: 420 g

Order Info

Part Number:  SDI-12-LS-XX-YY

XX: The default frequency band 

AS923: LoRaWAN AS923 band

AU915: LoRaWAN AU915 band

EU433: LoRaWAN EU433 band

EU868: LoRaWAN EU868 band

KR920: LoRaWAN KR920 band

US915: LoRaWAN US915 band

IN865: LoRaWAN IN865 band

CN470: LoRaWAN CN470 band 

YY: The grand connector hole size

M12: M12 hole

M16: M16 hole 

Useful Link:

Datasheet

User Manual

Firmware

Certificate