[Greg Tuthill]

I have done some more troubleshooting on this.

Does anyone have a function node that is able to format GPS data from the mDotBox? From either the GPS Survey Mode, or Lora Demo mode?

What I am trying to achieve is:
GPS Survey Data > Gateway > Formatted Data to send on to MQTT or API.

The GPS to Gateway Message is fine and has payload data as expected
http://www.multitech.net/developer/software/dot-box-and-evb-software/survey-gps/
——————————————————————————
[LoRa EVB output][msg] : object
{ “ack”: false, “adr”: false, “appeui”: “b2-64-01-e7-b7-11-aa-c6”, “chan”: 7, “cls”: 0, “codr”: “4/5”, “datr”: “SF10BW125”, “deveui”: “00-80-00-00-00-00-ee-d7”, “freq”: “903.7”, “lsnr”: “10.5”, “mhdr”: “8001000000000600”, “modu”: “LORA”, “opts”: “”, “port”: 1, “rfch”: 1, “rssi”: -75, “seqn”: 6, “size”: 16, “timestamp”: “2017-08-26T22:42:08.876890Z”, “tmst”: 2240121388, “payload”: [ 0, 26, 0, 198, 156, 51, 244, 124, 225, 185, 187 ], “eui”: “00-80-00-00-00-00-ee-d7”, “_msgid”: “41198a3.fbee674” }
——————————————————————————
The Format EVB Parser node does not seem to be interpreting the payload correctly.
https://webfiles.multitech.com/mmm/EVBParserLatest.txt

——————————————————————————
[Formatted EVB Data Output][msg] : object
{ “data_valid”: 0, “block_start”: 0, “temperature”: 0, “x_pos”: 0, “y_pos”: 0, “z_pos”: 0, “baro_pressure”: 0, “lux”: 0, “pkt_timer”: 0, “rf_pwr”: 0, “sf_val”: 10, “gateways”: 0, “margin_up”: 0, “rssi_dwn”: 0, “snr_dwn”: 0, “lat_deg”: 0, “lat_min”: 0, “long_deg”: 0, “long_min”: 0, “num_sats”: 0, “gps_status”: 0, “_msgid”: “41198a3.fbee674” }
——————————————————————————

Reviewing the data packet format information, indicates that payload should include IDs for GPS data (0x15, 0x16, 0x19). This doesn’t appear to be the case.
http://www.multitech.net/developer/software/dot-box-and-evb-software/data-packet-format/

I appreciate that this only applies to “Lora Demo” mode , “single survey” and “survey sweep”. Here is an example in this mode WITH GPS lock. Still no GPS info in formatted output.

——————————————————————————
[LoRa EVB output][msg] : object
{ “ack”: false, “adr”: false, “appeui”: “b2-64-01-e7-b7-11-aa-c6”, “chan”: 5, “cls”: 0, “codr”: “4/5”, “datr”: “SF9BW125”, “deveui”: “00-80-00-00-00-00-ee-d7”, “freq”: “903.3”, “lsnr”: “11.8”, “mhdr”: “4001000000000000”, “modu”: “LORA”, “opts”: “”, “port”: 1, “rfch”: 1, “rssi”: -79, “seqn”: 0, “size”: 20, “timestamp”: “2017-08-26T22:30:38.486345Z”, “tmst”: 1549717516, “payload”: [ 14, 0, 255, 15, 8, 6, 54, 51, 5, 5, 170, 11, 1, 193 ], “eui”: “00-80-00-00-00-00-ee-d7”, “_msgid”: “c1cffe55.3e3” }

——————————————————————————
But the formatted output has no values for GPS:

——————————————————————————
[Formatted EVB Data Output][msg] : object
{ “data_valid”: 0, “block_start”: 0, “temperature”: 28.0625, “x_pos”: 0, “y_pos”: -0.0625, “z_pos”: 0.9375, “baro_pressure”: 101772.75, “lux”: 348, “pkt_timer”: 0, “rf_pwr”: 0, “sf_val”: 9, “gateways”: 0, “margin_up”: 0, “rssi_dwn”: 0, “snr_dwn”: 0, “lat_deg”: 0, “lat_min”: 0, “long_deg”: 0, “long_min”: 0, “num_sats”: 0, “gps_status”: 0, “_msgid”: “c1cffe55.3e3” }
——————————————————————————

So the question is:
Does anyone have a function node that is able to format GPS data from the mDotBox? From either the GPS Survey Mode, or Lora Demo mode?

[Greg Tuthill]

Thanks for your response,
The MDOT-Box is sending data to the gateway ok. If i look at the debug output of the Lora packet in node-red, i see the data ok, for both Lora Survey and GPS survey:

I think it is one of the subsequent nodes “parse EVB Packet” or “To csv” that is not passing the data correctly.

Is there a moderator on here that helped develop the DotBox-Google app that can help?

Debug LoRa Packet – LoRa survey
——————————————————————–
8/22/2017, 8:32:07 AM[debug LoRa Packet][msg] : object{ “ack”: false, “adr”: false, “appeui”: “b2-64-01-e7-b7-11-aa-c6”, “chan”: 6, “cls”: 0, “codr”: “4/5”, “datr”: “SF9BW125”, “deveui”: “00-80-00-00-00-00-ee-d7”, “freq”: “903.5”, “lsnr”: “9”, “mhdr”: “4001000000000100”, “modu”: “LORA”, “opts”: “”, “port”: 1, “rfch”: 1, “rssi”: -17, “seqn”: 1, “size”: 20, “timestamp”: “2017-08-21T20:31:01.023130Z”, “tmst”: 2042596676, “payload”: [ 14, 1, 255, 15, 8, 6, 44, 94, 5, 0, 104, 11, 1, 171 ], “eui”: “00-80-00-00-00-00-ee-d7”, “_msgid”: “aa0a3a1c.55f5c8” }
——————————————————————–
8/22/2017, 8:34:15 AM[debug LoRa Packet][msg] : object{ “ack”: false, “adr”: false, “appeui”: “b2-64-01-e7-b7-11-aa-c6”, “chan”: 4, “cls”: 0, “codr”: “4/5”, “datr”: “SF9BW125”, “deveui”: “00-80-00-00-00-00-ee-d7”, “freq”: “903.1”, “lsnr”: “11.8”, “mhdr”: “4001000000000300”, “modu”: “LORA”, “opts”: “”, “port”: 1, “rfch”: 1, “rssi”: -27, “seqn”: 3, “size”: 20, “timestamp”: “2017-08-21T20:33:10.354607Z”, “tmst”: 2171923196, “payload”: [ 14, 1, 255, 15, 8, 6, 43, 243, 5, 0, 27, 11, 1, 184 ], “eui”: “00-80-00-00-00-00-ee-d7”, “_msgid”: “b69c2b76.4963d8” }

Debug LoRa Packet – GPS Survey – No GPS Lock
——————————————————————–
[msg] : object{ “ack”: false, “adr”: false, “appeui”: “b2-64-01-e7-b7-11-aa-c6”, “chan”: 1, “cls”: 0, “codr”: “4/5”, “datr”: “SF10BW125”, “deveui”: “00-80-00-00-00-00-ee-d7”, “freq”: “902.5”, “lsnr”: “12”, “mhdr”: “4001000000000000”, “modu”: “LORA”, “opts”: “”, “port”: 1, “rfch”: 0, “rssi”: -19, “seqn”: 0, “size”: 16, “timestamp”: “2017-08-21T20:34:11.641029Z”, “tmst”: 2233209876, “payload”: [ 0, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], “eui”: “00-80-00-00-00-00-ee-d7”, “_msgid”: “6525e952.9ada18” }
———————————————————————-

Debug LoRa Packet – GPS Survey – With GPS Lock
——————————————————————–
{ “ack”: false, “adr”: false, “appeui”: “b2-64-01-e7-b7-11-aa-c6”, “chan”: 2, “cls”: 0, “codr”: “4/5”, “datr”: “SF10BW125”, “deveui”: “00-80-00-00-00-00-ee-d7”, “freq”: “902.7”, “lsnr”: “8.8”, “mhdr”: “4001000000003e00”, “modu”: “LORA”, “opts”: “”, “port”: 1, “rfch”: 0, “rssi”: -67, “seqn”: 62, “size”: 16, “timestamp”: “2017-08-21T20:40:33.642886Z”, “tmst”: 2615222284, “payload”: [ 0, 25, 0, 198, 155, 0, 135, 124, 225, 215, 182 ], “eui”: “00-80-00-00-00-00-ee-d7”, “_msgid”: “d9a331b2.265cd” }

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