The Dragino DDS75-LB/LS is a  LoRaWAN Distance Detection Sensor for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses  ultrasonic sensing technology for distance measurement, and  temperature compensation is performed internally to improve the reliability of data. The DDS75-LB/LS can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.

It detects the distance  between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.

The LoRa wireless technology used in DDS75-LB/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.

DDS75-LB/LS supports BLE configure and wireless OTA update which make user easy to use.

DDS75-LB/LS is powered by 8500mAh Li-SOCI2 battery or solar powered + li-on battery, it is designed for long term use up to 5 years.

Each DDS75-LB/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.

Features: 

• LoRaWAN 1.0.3 Class A
• Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
• Ultra-low power consumption
• Distance Detection by Ultrasonic technology
• Flat object range 280mm - 7500mm
• Accuracy: ±(1cm+S*0.3%) (S: Distance)
• Measure Angle: 40°
• Cable Length : 25cm
• Support Bluetooth v5.1 and LoRaWAN remote configure
• Support wireless OTA update firmware
• AT Commands to change parameters
• Downlink to change configure
• IP66 Waterproof Enclosure
• 8500mAh Li/SOCl2 Battery (DDS75-LB)
• Solar panel + 3000mAh Li-on battery (DDS75-LS)

Applications: 

• Horizontal distance measurement
• Liquid level measurement
• Parking management system
• Object proximity and presence detection
• Intelligent trash can management system
• Robot obstacle avoidance
• Automatic control, sewer
• Bottom water level monitoring 

Specifications:

Common DC Characteristics:

• Supply Voltage: Built-in Battery , 2.5v ~ 3.6v
• 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

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