Wiki source code of Add GPS Support in LG308N / LPS8v2

Version 8.1 by Edwin Chen on 2023/12/07 21:16

version	line-number	content
1.8	1	(((
8.1	2	= 1. Introduction =
5.2	3
	4	----
	5
8.1	6	It is possible to GPS supports in LG308N-EC25 version and LPS8v2-EC25 version so device will add location info to uplink packet to LoRaWAN server.
1.8	7	)))
1.1	8
5.2	9
8.1	10	= 2. Add GPS support on LG308N =
	11
1.8	12	(((
5.2	13	(% style="color:blue" %)Below are the steps:
1.8	14	)))
1.1	15
1.8	16	(((
5.2	17	~1. Open the box and connect GPS antenna to GNSS port of EC25
1.8	18	)))
1.1	19
4.1	20	[[image:image-20220527160148-2.png]]
1.1	21
1.2	22	Connect GPS antenna
1.1	23
5.2	24
1.9	25	(((
5.2	26	2. modify the two files:
1.9	27	)))
1.1	28
1.9	29	(((
1.2	30	/etc/chatscripts/3g.chat
1.9	31	)))
1.1	32
1.3	33	(% class="box" %)
	34	(((
	35	ABORT BUSY
	36	ABORT 'NO CARRIER'
	37	ABORT ERROR
	38	REPORT CONNECT
1.2	39	TIMEOUT 10
1.3	40	"" "AT&F"
	41	OK "ATE1"
4.1	42	(% style="color:red" %)OK "AT+QGPS=1" ~-~-> Add this line, so EC25 module GPS will be enable when dial up(%%)
1.3	43	(% style="color:black" %)OK 'AT+CGDCONT=1,"IP","$USE_APN"'
	44	SAY "Calling UMTS/GPRS"
1.2	45	TIMEOUT 30
1.3	46	OK "ATD$DIALNUMBER"
1.2	47	CONNECT ' '
1.3	48	)))
1.1	49
7.2	50
1.8	51	(((
6.2	52	(% style="color:red" %)Note: (%%)After above settings, the GPS will be enable when dial up, if user doesn't use Cellular for Internet access, above script won't execute, in this case, user can (% style="color:red" %)run "echo AT+QGPS=1 > /dev/ttyUSB2" (%%)to (% style="color:blue" %)enable GPS /usr/bin/generate-config.sh,(%%) after configure this, in the web page, select any frequency band and save to make this take affect.
1.8	53	)))
1.1	54
7.2	55
1.3	56	(% class="box" %)
	57	(((
1.9	58	(((
4.2	59	(((
1.3	60	gen_gw_cfg() {
1.2	61	json_init
	62	json_add_object gateway_conf
	63	json_add_string "gateway_ID" "$gwid"
	64	json_add_string "server_address" "$server"
	65	json_add_int "serv_port_up" "$upp"
	66	json_add_int "serv_port_down" "$dpp"
	67	json_add_int "stat_interval" "$stat"
	68	json_add_boolean "forward_crc_valid" 1
	69	json_add_boolean "forward_crc_error" 0
4.2	70	)))
	71
	72	(((
	73	(% style="color:red" %)json_add_string "gps_tty_path" "/dev/ttyUSB1" ~-~-~-~--> Add this line so lora program knows to get the gps info from EC25
	74	)))
	75
	76	(((
1.8	77	(% style="color:black" %) json_close_object
4.2	78	json_dump > /etc/lora/local_conf.json(%%)
	79	(% style="color:black" %)}
1.3	80	)))
1.9	81	)))
4.2	82	)))
1.1	83
7.2	84
1.8	85	(((
5.2	86	3. Reboot the device and run logread -f to verify if GPS already works.
1.8	87	)))
1.1	88
1.3	89	(% class="box" %)
	90	(((
4.3	91	Fri Mar 6 04:08:59 2020 daemon.info lora_pkt_fwd[3016]: (% style="color:red" %)INFO~~ GPS serial port path is configured to "/dev/ttyUSB1"(%%)
1.3	92	Fri Mar 6 04:08:59 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [main] TTY port /dev/ttyUSB1 open for GPS synchronization
	93	Fri Mar 6 04:09:00 2020 cron.err crond[1689]: time disparity of 4301528 minutes detected
	94	Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ sockfd=4
	95	Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ sockfd=5
	96	Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ FPort Filter: 0
	97	Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ DevAddrMask: 0x0
	98	Fri Mar 6 04:09:34 2020 daemon.info lora_pkt_fwd[3016]: INFO: [jit] queue is empty
4.3	99	Fri Mar 6 04:09:34 2020 daemon.info lora_pkt_fwd[3016]: STAT~~ {"stat":{"time":"2020-03-06 04:09:34 UTC",(% style="color:red" %)"lati":22.70627,"long":114.24277,"alti":58,(%%)
1.3	100	(% style="color:black" %)"rxnb":0,"rxok":0,"rxfw":0,"ackr":0.0,"dwnb":0,"txnb":0}}
	101	Fri Mar 6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [up] PUSH_ACK received in 293 ms
	102	Fri Mar 6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [down] PULL_ACK received in 596 ms
	103	)))
8.1	104
	105
	106	= 2. Add GPS support on LPS8v2 =
	107
	108

Wiki source code of Add GPS Support in LG308N / LPS8v2

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