rn2903

[sebaz143]

Hi,

I am using SX1272 transceiver and a raspberry pi3 with your os, i have succesfully transmited data from a node with a sx1272 transceiver in 900 Mhz band. i have another lora node with a rn2903, but i can't receive data in the gateway from this node.

I have ran the lora_gateway with the --freq 908.3 argument.

I have the rn2903 conneced to a usb host in my computer and i have ran these commands:

sys get ver sys get hweui

mac reset mac set devaddr 00000006 mac set nwkskey 2B7E151628AED2A6ABF7158809CF4F3C mac set appskey 2B7E151628AED2A6ABF7158809CF4F3C mac set appkey 00112233445566778899AABBCCDDEEFF mac set pwridx 5 mac set dr 0 mac set adr off mac set ar off mac set sync 12

mac set ch status 0 off ..... mac set ch status 71 off (all but the 30 channel, this one is for 908.3 Mhz)

mac save mac join abp mac tx uncnf 1 01

[CongducPham]

Please, read the info on LoRaWAN compatibility here:

https://github.com/CongducPham/LowCostLoRaGw/blob/master/gw_full_latest/README-aes_lorawan.md

regards,

[sebaz143]

I'm still not able to send packets from my rn2903 to the low cost lora gateway with the sx1272 lora radio in the 900 Mhz band. I read above document and did everything it says. Th only thing that i get is a Receive error 2 and then the radio module restart. But after the second or third restarting, the gateway get freeze and i have to run the lora_gateway manually.

By the way, I have already update de gateway. I hope you can help me, I'm out of ideas. I have changed all the parameters with no success.

This is my configuration:

GATEWAY_CONF.JSON

{ "radio_conf" : { "mode" : 3, "bw" : 125, "cr" : 5, "sf" : 10, "ch" : 2, "freq" : 907.5 }, "gateway_conf" : { "gateway_ID" : "00000027EB2DB98E", "ref_latitude" : "my_lat", "ref_longitude" : "my_long", "wappkey" : false, "raw" : true, "aes" : true, "log_post_processing" : true, "log_weekly" : false, "dht22" : 0, "dht22_mongo": false, "downlink" : 0, "status" : 600, "aux_radio" : 0 }, "alert_conf" : { "use_mail" : false, "contact_mail" : "the_contact_mail_address,another_contact_mail_a$ "mail_from" : "a_gmail_address", "mail_server" : "smtp.gmail.com", "mail_passwd" : "your_passwd", "use_sms" : false, "pin": "0000", "contact_sms":["+33XXXXXXXXX","+33XXXXXXXXX"], "gammurc_file":"/home/pi/.gammurc" } }

RUN THE GATEWAY WITH THIS COMMAND

sudo ./lora_gateway --mode 3 --cr 5 --sf 10 --bw 125 --raw --sw 34 --freq 907.5 | python post_processing_gw.py

RN2903 CONFIGURATION

mac reset mac set devaddr 00000006 mac set nwkskey 2B7E151628AED2A6ABF7158809CF4F3C mac set appskey 2B7E151628AED2A6ABF7158809CF4F3C mac set appkey 00112233445566778899AABBCCDDEEFF mac set pwridx 8 mac set dr 0 mac set adr off mac set ar off mac set sync 34 mac set ch status 0 off ..... mac set ch status 71 off (all but the 10 channel, this one is for 907.5 Mhz) mac set ch drrange 10 0 0 mac save mac join abp mac tx uncnf 1 01

GATEWAY OUTPUT

pi@raspberrypi:~/lora_gateway $ sudo ./lora_gateway --mode 3 --cr 5 --sf 10 --bw 125 --raw --sw 34 --freq 907.5 | python post_processing_gw.py raw output from low-level gateway. post_processing_gw will handle packet format enable local AES decryption post_processing_gw.py found an alert_conf section Parsing cloud declarations [u'python CloudMongoDB.py'] [u'python CloudMongoDB.py', u'python CloudMySQL.py'] Parsed all cloud declarations post_processing_gw.py got cloud list: [u'python CloudMongoDB.py', u'python CloudMySQL.py'] Parsing cloud declarations Parsed all cloud declarations post_processing_gw.py got encrypted cloud list: [] Parsing cloud declarations Parsed all cloud declarations post_processing_gw.py got LoRaWAN encrypted cloud list: [] Starting thread to report gw status 2017-10-11 00:04:48.437357 post status: gw ON, lat my_lat long my_long

Current working directory: /home/pi/lora_gateway SX1272 detected, starting. ... **Power ON: state 0 Default sync word: 0x12 Set sync word to 0x34 LoRa sync word: state 0 LoRa CR 5: state 0 LoRa SF 10: state 0 LoRa BW 125: state 0 Frequency 907.500000: state 0 Set LoRa power dBm to 14 Power: state 0 Get Preamble Length: state 0 Preamble Length: 8 LoRa addr 1: state 0 Raw format, not assuming any header in reception SX1272/76 configured as LR-BS. Waiting RF input for transparent RF-serial bridge Low-level gw status ON

Receive error 2

Resetting radio module SX1272 detected, starting. ... Setting power ON: state 0 LoRa CR 5: state 0 LoRa SF 10: state 0 LoRa BW 125: state 0 Frequency 907.500000: state 0 Set LoRa power dBm to 14 Power: state 0 Get Preamble Length: state 0 Preamble Length: 8 LoRa addr 1: state 0 Raw format, not assuming any header in reception SX1272/76 configured as LR-BS. Waiting RF input for transparent RF-serial bridge Low-level gw status ON

[MZourob]

Hi @sebaz143 ,

I am trying to exactly do what you have described in this thread. I have a RN2903 module and I am not able to receive anything on the gateway that is a RPi3 with a Dragino LoRa/GPS hat. Have you figured out a solution for this?

Thank you.

[MZourob]

Hi @CongducPham ,

I am trying to exactly do what @sebaz143 was trying to do. I have a RN2903 module and I am not able to receive anything on the gateway that is a RPi3 with a Dragino LoRa/GPS hat. Have you figured out a solution for this?

Thank you very much for the help.

[CongducPham]

We have updated how CRC are handled, can you check again with latest version from github?

regards,

[MZourob]

Thank you @CongducPham for your reply. I have just installed the Jessie image like 2 days ago into my Pi, so I guess I have the latest version, is not that correct?

And I did do the update from the startup program.

[CongducPham]

OK, yes, you should have the latest version, please check the git version and the installed version by looking at the 2 files in /home/pi: git-VERSION.txt and VERSION.txt

[MZourob]

I have confirmed the version but still no use. I still cannot receive from the LoRa Mote. I am not sure but the LoRa Mote operates in the region from 902 to 923 Mhz and the Hat I have it seems is operating at 868 Mhz. So I would assume that there is a frequency mismatch, correct?