RS485 / UART to LoRaWAN Converter – RS485-LB

Features

• LoRaWAN v1.0.3 Class A
• Ultra-low power consumption
• Support multiply RS485 devices by flexible rules
• Support Interrupt uplink
• Support Modbus protocol
• Supports connecting a UART sensors with 3.3V or 5V
• Support Bluetooth v5.1 and LoRaWAN remote con­figure
• Support wireless OTA update fi­rmware
• Uplink on periodically
• Downlink to change confi­gure
• 8500mAh Battery for long term use
• AT Commands to change parameters

Application

• Smart Buildings & Home Automation
• Logistics and Supply Chain Management
• Smart Metering
• Smart Agriculture

Specifications

I/O Interface:

• +5v controllable output
• Battery controllable output (2.6v ~ 3.6v depends on battery)
• RS485/UART to LoRaWAN Converter
• RS485-LB
• 1 x UART Interface, 3.3v or 5v
• 1 x RS485 Interface
• 1 x I2C Interface
• 1 x Interrupt or Digital IN/OUT pins
• 1 x one wire interface

Common DC Characteristics:

• Operating Temperature: -40 ~ 85°C
• Supply Voltage: 2.5v ~ 3.6v

LoRa Spec:

• RX sensitivity: down to -139 dBm.
• Max +22 dBm constant RF output vs.
• Frequency Range, Band 1 (HF): 862 ~ 1020Mhz, Band 2 (LF): 410 ~ 528Mhz
• Excellent blocking immunity.

Battery:

• Self-Discharge: <1% / Year @ 25°C
• Capacity: 8500mAh
• Li/SOCI2 un-chargeable battery
• Max boost current: 2A, 1 second
• Max continuously current: 130mA

Power Consumption:

• LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
• Sleep Mode: 5uA @ 3.3v