Description :

-LoRa Radio Module is a long range, low data rate radio modem based on the Sx1276 chip from Semtech
-It operates in the unlicensed ISM and LPRD bands and has a low cost
-It can work in two different modes: Standard mode and Star network mode
-In Standard mode, it acts as a transparent data radio modem and communicates with the host at the preset data format without encoding or decoding needed
-In Star network mode, one module is configured as the central node and other modules are set to node modules. Communication between the central module and node modules is bidirectional, but node modules cannot communicate with each other
-The module does not contain the LoRaWAN protocol, so the star network feature is used with its own protocol and is not compatible with LoRaWAN
-A USB to TTL Converter is recommended for setting the module parameters and the Gravity IO Expansion Shield can be used directly with the Lora modules.

–Features:

•LoRa Frequency Spectrum
•433/490 Mhz 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
-Specifications:
•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