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  • this module is based on semtech lorawan concentrator reference design -- sx1302 reference . it is a high performance lora/lorawan module based on semtech sx1302 and sx1250.
  • the sx1302 digital baseband chip is a massive digital signal processing engine specifically designed to offer breakthrough gateway capabilities in the ism bands worldwide. the lora concentrator is a multi-channel high performance transmitter/receiver designed to simultaneously receive several lora packets using random spreading factors on random channels. its goal is to enable robust connection between a central wireless data concentrator and a massive amount of wireless end-points spread over a very wide range of distances.
  • the sx1302 is a smart baseband processor for long range ism communication. in the receiver part, it receives i and q digitized bitstream from one or two receivers (sx1250 as an example), demodulates these signals using several demodulators, adapting the demodulators settings to the received signal and stores the received demodulated packets in a fifo to be retrieved from a mcu. in the transmitter part, the packets are modulated using a programmable (g)fsk/lora modulator and sent to one transmitter (sx1250 as an example). received packets can be time-stamped using a gps input.
  • the sx1302 has an internal control block that receives microcode from the mcu. the microcode is provided by semtech as a binary file to load in the sx1302 at power-on.
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parameter min typ.  max unit condition
working condition
working voltage range 4 5.0 5.5 v  
temperature voltage -40   85  
current consumption
receiving current   <40   ma @9 channels all open
transmitting current   <2000   ma @32dbm
parameter
frequency range   340   mhz  
860.75 868.3 874.5 mhz @868mhz
902 915 928 mhz @915mhz
output power range 14   32 dbm @868mhz 
receiving sensitivity   -134   dbm @sf=10,,bw=125khz

产品特点

  • lora long range module technology
  • half-duplex
  • simultaneously receive lora packets
  • dual digital tx & rx radio front-end
  • dynamic data-rate adaptation (adr)
  • multi lora spreading factor
  • maximum 10 channels
  • 8 x multi sf lora channels (sf7 to sf12 with125khz bandwidth)
  • 1x lora channel (bandwidth 125/250/500khz)
  • 1 x fsk channel

应用领域

  • smart city
  • smart metering ( water, electric, gas meter )
  • agricultural monitoring
  • irrigation control
  • internet of things (iot)
  • m2m
  • wireless sensors
  • wireless alarm and security systems
pin definition type description
1 vcc power (vcc) power supply
2 vcc power (vcc) power supply
3 gnd power (gnd) ground
4 sx1261_dio1 input/output dio1 of sx1261
5 gpio6 input/output gpio of sx1302
6 sx1302_uart_tx input/output uart txd of sx1302
7 sx1302_uart_rx input uart txd of sx1302
8 host_csn output csn of sx1302
9 host_miso input miso of sx1302
10 host_mosi input mosi of sx1302
11 host_sck input sck of sx1302 (max 10 mhz clock)
12 gnd power (gnd) ground
13 sx1302_reset input reset of sx1302
14 pps output pps of sx1302
15 sx1261_dio2 output dio2 of sx1261
16 sx1261_nss input nss of sx1261
17 sx1261_busy output busy of sx1261
18 i2c_scl input scl of stts751
19 i2c_sda input/output sda of stts751
20,21,23,24,26 gnd power (gnd) ground
22 rxant input connect 50 ohm antenna
25 txant output connect 50 ohm antenna

 

接口 spi
输出功率 1.5w
模式 网关

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