Brief Introduction M390 series LoRa module is integrated with LoRaWAN protocol stack, compatible with LoRaWAN specification (V1.0.3, Class A/B/C) released by LoRa Alliance, which supports the connectivity function for different devices. The module can support wide frequency:low band 470~510MHz or high band 862~932MHz. M390 module uses Semtech's SX1268/2 chip,has many features as low power, long range and high anti- interference etc, which can be used in many applications as smart metering, smart city and smart building etc。     Features • Low power consumption: minimum standby current 3.5uA • High sensitivity: up to -139dBm@SF12/125KHz • Compliant with LoRaWAN Specification 1.0.3 • Support LoRaWAN Class A/B/C with integration of LoRaWAN protocol stack • UART interface, stamp hole, support parameters configuration through AT command         Applications         Specification   Specification Description Model Model  M390                   Transmission                       Protocol LoRaWAN V1.0.3 Topology Star Device Type Class A/B/C      Activation Mode OTAA/ABP Modulation CSS (Chirp Spread Spectrum)      Frequency Band EU433MHz/CN470MHz/EU868MHz/US915MHz/AS923MHz Center Frequency Can be customized Bandwidth 125/250/500KHz configurable Data Rate 0.018-37.5kbps RX Power +22dBm (max) TX Sensitivity -139dBm@SF12/125KHz           Interface           Supply Voltage DC 3.3V (2.0-3.6V) IOs GPIO*4, UART*1, I2C*1 (Reserved) Baud Rate Of Serial Port 1200/2400/4800/9600/19200/38400/57600/115200bps, default is 9600bps Antenna Interface IPEX base/Stamp hole, default is IPEX base   Antenna Type Omni directional or Directional (Spring Antenna is recommended)      

Brief Introduction M400 Series module based on LoRa spread spectrum modulation technology, providing TTL serial port and GPIO, built-in LoRaWAN protocol. The end products embedded in this module can be configured in a quick and easy way with gateways forming a star low power WAN (LPWAN) for ultra-long distance wireless data transmission。       Features • Low power consumption: minimum standby current 5uA • High sensitivity: up to -138dBm@SF12/125KHz • Compliant with LoRaWAN Specification 1.0.2 • Support LoRaWAN Class A/C with integration of LoRaWAN protocol stack • UART interface, stamp hole, support parameters configuration through AT command     Applications     Specification   Model M400 Size 32*19*2.5mm(Without SMA connector) Modulation technology Linear FM Spread Spectrum Modulation CSS（chirp Spread Spectrum） Center frequency customizable Working frequency 433MHz/470MHz/510MHz/868MHz/915MHz/923MHz; Channel bandwidth 125KHz,250KHz configurable Transmission rate 0.25-50kbps RF power 20dBm（max） Receiving sensitivity -138dBm@SF12/125KHz Protocol LoRaWAN V1.0.2 Mode Class A、Class B、Class C Power consumption Standby 5μA@5V/ 3.5μ[email protected]（Class A）/3.5μA（Class B)/10mA（Class C）； TX：130mA；RX：10 mA Operating Voltage 3.3V（2.6-3.6V） Coverage city 2km， suburbs 5km IO interface GPIO*3、Serial port *2 （3.3V）、PIN gap 2.54mm Antenna interface SMA Connector pad / Stamp hole pad / Through hole pad Antenna Omnidirectional / Directional, Recommended Spring Antenna, Headroom Operating temperature -40℃--85℃ Working humidity 10%--90%RH（No condensation）