["The DRAGINO RS485-LB is an RS485 / UART to LoRaWAN converter for Internet of Things solutions. The user can connect an RS485 or UART sensor to the RS485-LB converter and configure the RS485-LB to periodically read and upload sensor data to the IoT server via the LoRaWAN network. RS485-LB can be connected to RS485 sensors, 3.3v/5v UART sensors or interrupt sensors. RS485-LB provides a 3.3V output and a 5V output to power external sensors. Both output voltages are controllable to minimize the overall system power consumption. RS485-LB is waterproof (IP67) and powered by an 8500mAh Li-SOCI2 battery and is designed for long-term use over several years. RS485-LB runs on the LoRaWAN 1.0.3 standard in class A. It can achieve a long transmission range and can be easily integrated into LoRaWAN-compatible gateways and IoT servers. For data uplink, RS485-LB sends user-defined commands to RS485 devices and receives the feedback from RS485 devices. RS485-LB processes this returned data according to user-defined rules to obtain the final payload and upload it to the LoRaWAN server. For data downlink, RS485-LB runs in LoRaWAN Class A. When there are downlink commands from LoRaWAN server, RS485-LB forwards the commands from LoRaWAN server to RS485 devices. RS485-LB supports BLE configuration and OTA wireless update, which makes it easier for users to use. Each RS485 LB is pre-loaded with a set of unique keys for LoRaWAN registration, these keys are registered with the LoRaWAN server and the connection is established automatically after power on. Supply voltage: Built-in battery, 2.5v ~ 3.6v Operating temperature: -40 ~ 85°C 1 x RS485-LB RS485/UART to LoRaWAN converter", "LoRaWAN 1.0.3 Class A", "Frequency band: EU868", "Ultra-low power consumption", "Supports multiple RS485 devices according to flexible rules", "Supports Modbus protocol", "Supports interrupt uplink", "Supports connecting a 3.3V or 5V UART sensor", "Supports Bluetooth v5.1 and LoRaWAN remote configuration", "Supports wireless OTA update firmware", "AT commands for changing parameters", "Uplink at regular intervals", "Downlink to change the configuration", "8500mAh Li/SOCl2 battery", "Intelligent buildings and home automation", "Logistics and supply chain management", "Intelligent consumption measurement", "Smart agriculture", "Smart cities", "Smart factory", "Battery controllable output (2.6v ~ 3.6v depending on battery)", "+5v controllable output", "1 x RS485 interface", "1 x UART interface, 3.3v or 5v", "1 x interrupt or digital IN/OUT pins", "1 x I2C interface", "1 x One Wire Interface", "Frequency range, Band 1 (HF): 862 ~ 1020 MHz", "Max. +22 dBm constant RF output vs", "RX sensitivity: up to -139 dBm", "Excellent blocking immunity", "Non-rechargeable Li/SOCI2 battery", "Capacity: 8500mAh", "Self-discharge: <1% / year @ 25°C", "Max. continuous current: 130mA", "Max. charging current: 2A, 1 second", "Sleep mode: 5uA @ 3.3v", "LoRa transmission mode: 125mA @ 20dBm, 82mA @ 14dBm", "Device size: 9.7 x 6.5 x 4.7 cm", "Weight of the device: 150g", "Packaging size / piece: 14.0 x 8x 5 cm", "Weight / piece: 180g"]