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-ion 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.

Default FW in AS923, but it support US915, AU915 and all 900MHz Frequency by loading different FW, it could also support 868MHz if loading 868MHz FW, but there will be slight 0.5-1dB loss here.

Feature:

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-ion 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:

Environment

Operating Temperature

-40 ~ +85℃

Storage Temperature

-40 ~ +85℃

Protection Level

IP66

LoRaWAN frequency and Countries/Regions

Frequency	Status	Countries/Regions
EU868	OK	Europe and other
AU915, AS923	OK	Australia
		New Zealand
		Brunei
		Cambodia
		Hongkong
		Indonesia
		Japan
		Laos
		Singapore
		Taiwan
		Thailand
		Vietnam
CN470	OK	China
US915	OK	USA
KR920	OK	Korea

Datasheet: DDS75.pdf

Operation manual: DDS75 User manual.pdf

Configure manual: DDS75 AT commands.pdf

Other documents: DDS75 Power Analyze.pdf

Decorder: DDS75 decorder - TTN.txt

DDS75-LB LoRaWAN Ultrasonic Distance Detection Sensor