Dragino SN50v3-LB Waterproof Long Range Wireless LoRa Sensor Node

1. Introducció

The Dragino SN50v3-LB is a robust, waterproof, long-range wireless LoRaWAN sensor node, specifically engineered for outdoor environments and extended operational periods. It is powered by an 8500mA Li/SOCl2 battery, ensuring long-term use without frequent maintenance. This device is designed to accelerate the deployment of industrial-grade LoRa and IoT solutions, enabling users to transform concepts into practical applications and realize the potential of the Internet of Things.

The SN50v3-LB's wireless communication is built around the SX1262 LoRa Core, facilitating data transmission over extremely long ranges at low data rates. This core technology provides ultra-long-range spread spectrum communication and high interference immunity, all while minimizing current consumption. It is ideally suited for professional wireless sensor network applications, including irrigation systems, smart metering, smart city infrastructure, smartphone detection, and building automation.

Equipped with a powerful 48Mhz ARM microcontroller, 256KB flash memory, and 64KB RAM, the SN50v3-LB offers versatile multiplex I/O pins for connecting various sensors. A built-in BLE module allows for remote configuration via a mobile phone, and it supports Over-The-Air (OTA) firmware updates using a private LoRa protocol for simplified maintenance. As the 3rd generation of Dragino's LSN50 series generic sensor nodes, the SN50v3-LB is an open-source project featuring a mature LoRaWAN stack and application software. Users can leverage the pre-loaded software for their IoT projects or easily customize it to meet diverse requirements.

2. Característiques clau

• LoRaWAN 1.0.3 Class A compliance
• Integrated SX1262 LoRa Core for long-range communication
• Ultra-low power consumption for extended battery life
• Open-Source hardware and software for customization
• Supports multiple frequency bands: CN470, EU433, KR920, US915, EU868, AS923, AU915, IN865
• Bluetooth v5.1 support for remote configuration
• LoRaWAN remote configuration capabilities
• Wireless Over-The-Air (OTA) firmware update support
• Periodic uplink data transmission
• Downlink functionality for configuration changes
• High-capacity 8500mAh Li/SOCl2 battery for long-term operation
• IP65 Water Proof enclosure for outdoor use
• External LoRa Antenna for optimized signal reception

3. Aplicacions

The SN50v3-LB is suitable for a wide range of IoT applications, including but not limited to:

• Sistemes d'alarma i seguretat sense fil
• Domòtica i edificis
• Lectura automatitzada del comptador
• Seguiment i Control Industrial
• Long-range Irrigation Systems

4. Guia de configuració

This section outlines the general steps for setting up your SN50v3-LB sensor node. For detailed programming and specific sensor integration, refer to the official Dragino documentation and open-source resources.

4.1. Instal·lació física

1. Muntatge: Choose a suitable outdoor location for the sensor node. Ensure it is securely mounted and positioned to optimize LoRa signal transmission and reception. The IP65 rating ensures protection against dust and water jets, but avoid submerging the device.
2. Connexió d'antena: Carefully connect the external LoRa antenna to the designated connector on the device. Ensure a tight connection to prevent signal loss and maintain waterproofing.
3. Sensor Connection (if applicable): If you are connecting external sensors, use the multiplex I/O pins. Refer to the device's pinout diagram and your sensor's documentation for correct wiring. Ensure all connections are properly sealed if maintaining the IP65 rating is critical.

4.2. Configuració Inicial

1. Encès: The device is powered by an internal 8500mAh Li/SOCl2 battery. It should be ready for operation upon receipt.
2. BLE Configuration: Use a mobile phone with a compatible application to connect to the SN50v3-LB via Bluetooth v5.1. This allows for initial parameter setup, such as LoRaWAN region, device EUI, application EUI, and application key.
3. LoRaWAN Network Registration: Register your device with your chosen LoRaWAN network server using the credentials obtained during BLE configuration. Ensure the selected frequency band matches your region and network server settings.
4. Sensor Calibration (if applicable): If using external sensors, perform any necessary calibration steps as per the sensor manufacturer's instructions.

5. Funcionament

The SN50v3-LB operates by periodically transmitting sensor data (uplink) to a LoRaWAN network server. It can also receive commands (downlink) from the server to change its configuration or trigger specific actions.

5.1. Transmissió de dades

• The device is pre-programmed to send data periodically. The interval can be configured via downlink commands or the BLE interface.
• Ensure the device is within range of a LoRaWAN gateway connected to your network server for successful data transmission.

5.2. Remote Configuration

• Via LoRaWAN Downlink: Parameters such as uplink interval, sensor thresholds, and other operational settings can be updated remotely by sending downlink messages from your LoRaWAN network server.
• Via Bluetooth (BLE): For local configuration or troubleshooting, connect to the device using a mobile application over Bluetooth. This method is useful for initial setup or when LoRaWAN connectivity is not yet established.

6. Manteniment

6.1. Substitució de la bateria

The SN50v3-LB uses an 8500mAh Li/SOCl2 battery, which is non-rechargeable and designed for long-term use. When the battery life depletes, it must be replaced. To replace the battery:

1. Carefully open the device enclosure. Note the internal components and wiring.
2. Disconnect the old battery.
3. Install a new, compatible Li/SOCl2 battery (8500mAh, 3.6V). Ensure correct polarity.
4. Securely close the enclosure, ensuring the waterproof seal is properly seated to maintain the IP65 rating.
5. Dispose of the old battery responsibly according to local regulations for lithium batteries.

6.2. Actualitzacions de firmware

The SN50v3-LB supports wireless Over-The-Air (OTA) firmware updates via a private LoRa protocol. This allows for easy maintenance and feature enhancements without physical access to the device. Refer to Dragino's official documentation or support resources for instructions on performing OTA updates.

7. Solució De Problemes

This section provides general troubleshooting tips for common issues. For more specific problems, consult Dragino's support resources or community forums.

8. Especificacions tècniques

8.1. Microcontrolador

• MCU: 48Mhz ARM
• Flash: 256 KB
• RAM: 64 KB
• Subministrament Voltage: 2.5V ~ 3.6V
• Temperatura de funcionament: -40 °C ~ 85 °C

8.2. LoRa Specifications

• Frequency Range (Band 1 HF): 862 ~ ​​1020 MHz
• Sortida de RF màxima: +22 dBm (constant)
• Sensibilitat RX: Fins a -139 dBm
• Immunitat: Excel·lent immunitat de bloqueig

8.3. I/O Specifications (Multiplex Pins)

• Sortida de la bateria: 2.6V ~ 3.6V (dependent on battery level)
• +5V Controllable Output: 1
• Interrupt or Digital IN/OUT Pins: 3
• One-Wire Interfaces: 3
• Interfície UART: 1
• Interfície I2C: 1

8.4. Bateria

• Tipus: Li/SOCl2 (non-rechargeable)
• Capacitat: 8500 mAh
• Autodescàrrega: <1% / Any @ 25°C
• Corrent continu màxim: 130 mA
• Max Boost Current: 2A (for 1 second)

8.5. Consum d'energia

• Mode de repòs: 5uA @ 3.3V
• Mode de transmissió LoRa: 125 mA a 20 dBm, 82 mA a 14 dBm

9. Consells d'usuari

Tot i que no hi ha cap usuari específicviews or Q&A were provided for this manual, here are some general tips for optimizing your experience with the Dragino SN50v3-LB:

• Optimize Antenna Placement: For best LoRa performance, ensure the external antenna has a clear line of sight to the LoRaWAN gateway. Avoid obstructions like metal structures or dense foliage.
• Gestió de la vida útil de la bateria: Although the battery is long-lasting, frequent uplinks or complex sensor operations will consume more power. Adjust your uplink interval and sensor sampling rates to balance data freshness with battery longevity.
• Leverage Open-Source Resources: As an open-source device, a wealth of community-driven information, code examples, and tutorials may be available online. Explore these resources for advanced customization and integration.
• Regular Firmware Checks: Periodically check the Dragino website for new firmware releases. Updates can provide performance improvements, new features, or bug fixes.
• Tancament segur: When opening the device for battery replacement or sensor wiring, always ensure the enclosure is properly sealed afterward to maintain its IP65 waterproof rating, especially for outdoor deployments.

10. Garantia i Suport

For information regarding product warranty, technical support, and service, please refer to the official Dragino website or contact your authorized reseller. Keep your purchase receipt as proof of purchase for any warranty claims.

Dragino provides resources and documentation for their open-source products, which can be invaluable for development and troubleshooting. Check their official weblloc per a:

• Detailed product documentation and datasheets
• Firmware downloads and update guides
• Community forums and support channels