Introduction
LoRa Radio Module is a type of long range low data rate data radio modem based on Sx1276 from Semtech. It is a low-cost sub-1 GHz transceiver module designed for operations in the unlicensed ISM (Industrial Scientific Medical) and LPRD bands. Frequency spectrum modulation/demodulation, multi-channel operation, high bandwidth efficiency and anti-blocking performance make LoRa modules easy to realize the robust and reliable wireless link.
The module can work in two different modes: Standard mode and Star network mode. In the standard mode It acts as transparent data radio modem which it communicates with the host at the preset data format without encoding / decoding needed. In start network mode, one module will be the configured to the central node and other modules are set to node modules. The communication between the central module and node module are bidirectional but the node modules can not talk with each other. Please note that the module doesn't contain lorawan protocol. Therefore the star network feature of this module is used with itself protocol so it is not compatible with lorawan.
Recommend
USB to TTL Converter to set the module parameter, and
Gravity IO Expansion Shield can directly work with the Lora modules.
Features
LoRa Frequency Spectrum
433/490Mhz ISM frequency band
-137 dBm receive sensitivity
20 dBm Max. output power
Serial port wake-up
Wireless wake-up
Star networking ability
Supply voltage 3.4~5.5V
Specification
Operating voltage: 2.1 ~ 3.6V (battery-powered) or 4.5 ~ 5.5V
Working frequency band: 433MHz
Modulation: LoRa spread spectrum
Output power: ≤ 20dBm
Receiving sensitivity: -148dBm
Emission current: ≤120mA
Receiving current: ≤15.2mA
Sleep current: ≤ 3.9uA
Sleep time: Optional 2S, 4S, 6S, 8S, 10S
Breathing time: optional 2ms, 4ms, 8ms, 16ms, 32ms, 64ms
Wake-up time: wake up immediately
Communication Interface: TTL serial communication
Serial baud rate: 1200 ~ 57600,9600bps (default)
Serial port verification: 8E1,8O1,8N1 (optional)
Operating temperature: -40 ° C - + 80 ° C
Product Size: 34.2 * 18.4 mm /1.35*0.72 inches
Shipping List
LoRa Radio Module - 433MHz x2
433MHz antenna (2m SMA-Male connector) x2
