DDS75-LB LoRaWAN Distance Sensor Node 868MHz

The DDS75-LB is a LoRaWAN distance sensor specifically designed for IoT solutions. Using ultrasonic technology, it measures the distance between the sensor and a flat object. Thanks to the internal temperature compensation, the measurement data is particularly reliable. The sensor is suitable for a wide range of applications, from liquid level measurement, water level measurement in rivers, snow quantities to parking space monitoring. This robust sensor node, packaged in a weatherproof housing, is ideal for outdoor use and is powered by an 8500mA Li/SOCl2 battery, ensuring a long operating time. The DDS75-LB not only serves as a simple sensor node, but is specifically designed to facilitate the rapid implementation of industrial LoRa and IoT applications. The wireless part of the node is based on the SX1262, which allows data transmission over very long distances at low data rates. This ensures an exceptionally wide range, high interference security and optimizes power consumption. Equipped with a powerful 48 MHz ARM microcontroller, 256KB Flash and 64KB RAM, the DDS75-LB is ready for all kinds of projects. The DDS75-LB has an integrated BLE module, which allows convenient configuration of the sensor from your mobile phone. It also supports OTA updates over a private LoRa protocol, significantly simplifying maintenance. This sensor node is the third generation of the popular LDDS75 from Dragino and offers a mature LoRaWAN stack as well as application software. You can use the pre-installed software for your IoT projects or flexibly adapt the software to different requirements.

Each sensor comes preloaded with a set of unique keys for LoRaWAN registrations. These keys are registered on the local LoRaWAN server and the sensor automatically establishes a connection when switched on, if network coverage is available.

Recommended Accessories: 

• Lora Gateway

Features:

• Measurement range: 280mm - 7500mm
• Supports LoRaWAN v1.0.3 Class A protocol
• EU868 frequency band
• Ultra-low power consumption
• SX1262 LoRa Core
• Extremely low power consumption
• Open-source hardware/software
• Easy configuration with AT commands via Bluetooth V5.1, LoRaWAN Downlink or UART
• Support for wireless OTA firmware update
• Periodic Uplink function
• 8500mAh Li/SOCl2 battery for a long operating time
• Waterproof housing according to IP65 
• Optimized housing with new pressure compensation screw
• External LoRa antenna

Application Examples:

• Horizontal distance measurement
• Liquid level measurement
• Parking space monitoring
• Intelligent waste bin management
• Wastewater monitoring
• Snow measurements
• Water level measurements in rivers and lakes

Links and Download:

• Dragino Wiki

Technical Details:

• Manufacturer: Dragino
• Manufacturer SKU: DDS75-LB-EU868
• Microcontroller:
• MCU: 48 MHz ARM
• Flash: 256KB
• RAM: 64KB
• Supply voltage: 2.5V ~ 3.6V
• Operating temperature: -40 ~ 85°C
• LoRa Specifications:
• Frequency range: 868MHz / EU868 
• Maximum +22 dBm constant RF output across
• RX sensitivity: up to -139 dBm
• Outstanding blocking immunity
• Battery:
• Li/SOCI2 non-rechargeable battery
• Capacity: 8500mAh
• Self-discharge: <1% / year @ 25°C
• Maximum continuous current: 130mA
• Maximum peak current: 2A, 1 second
• Power consumption:
• Sleep mode: 5uA @ 3.3V
• LoRa transmit mode: 125mA @ 20dBm, 82mA @ 14dBm
• Ultrasonic Distance Sensor:
• Measurement range: 280mm - 7500mm
• Accuracy: ±(1cm+S*0.3%) (S: Distance)
• Measuring angle: 40°
• Connection cable: 25cm
• Dimension: 127 x 66 x 48mm
• Weight: 258.2g

Package Contents:

• 1 x DDS75-LB LoRaWAN Distance Sensor Node 868MHz
• 1x External 868MHz antenna