Wiki source code of Add GPS Support in LG308N / LPS8v2

Version 17.1 by Kilight Cao on 2023/12/08 16:32

version	line-number	content
9.1	1	Table of Contents：
	2
	3	{{toc/}}
	4
	5
1.8	6	(((
9.1	7	= 1. Introduction =
5.2	8
	9	----
	10
8.1	11	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	12	)))
1.1	13
5.2	14
8.1	15	= 2. Add GPS support on LG308N =
	16
1.8	17	(((
5.2	18	(% style="color:blue" %)Below are the steps:
1.8	19	)))
1.1	20
1.8	21	(((
5.2	22	~1. Open the box and connect GPS antenna to GNSS port of EC25
1.8	23	)))
1.1	24
4.1	25	[[image:image-20220527160148-2.png]]
1.1	26
1.2	27	Connect GPS antenna
1.1	28
5.2	29
1.9	30	(((
5.2	31	2. modify the two files:
1.9	32	)))
1.1	33
1.9	34	(((
1.2	35	/etc/chatscripts/3g.chat
1.9	36	)))
1.1	37
1.3	38	(% class="box" %)
	39	(((
	40	ABORT BUSY
	41	ABORT 'NO CARRIER'
	42	ABORT ERROR
	43	REPORT CONNECT
1.2	44	TIMEOUT 10
1.3	45	"" "AT&F"
	46	OK "ATE1"
4.1	47	(% style="color:red" %)OK "AT+QGPS=1" ~-~-> Add this line, so EC25 module GPS will be enable when dial up(%%)
1.3	48	(% style="color:black" %)OK 'AT+CGDCONT=1,"IP","$USE_APN"'
	49	SAY "Calling UMTS/GPRS"
1.2	50	TIMEOUT 30
1.3	51	OK "ATD$DIALNUMBER"
1.2	52	CONNECT ' '
1.3	53	)))
1.1	54
7.2	55
1.8	56	(((
6.2	57	(% 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	58	)))
1.1	59
7.2	60
1.3	61	(% class="box" %)
	62	(((
1.9	63	(((
4.2	64	(((
1.3	65	gen_gw_cfg() {
1.2	66	json_init
	67	json_add_object gateway_conf
	68	json_add_string "gateway_ID" "$gwid"
	69	json_add_string "server_address" "$server"
	70	json_add_int "serv_port_up" "$upp"
	71	json_add_int "serv_port_down" "$dpp"
	72	json_add_int "stat_interval" "$stat"
	73	json_add_boolean "forward_crc_valid" 1
	74	json_add_boolean "forward_crc_error" 0
4.2	75	)))
	76
	77	(((
	78	(% 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
	79	)))
	80
	81	(((
1.8	82	(% style="color:black" %) json_close_object
4.2	83	json_dump > /etc/lora/local_conf.json(%%)
	84	(% style="color:black" %)}
1.3	85	)))
1.9	86	)))
4.2	87	)))
1.1	88
7.2	89
1.8	90	(((
5.2	91	3. Reboot the device and run logread -f to verify if GPS already works.
1.8	92	)))
1.1	93
1.3	94	(% class="box" %)
	95	(((
4.3	96	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	97	Fri Mar 6 04:08:59 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [main] TTY port /dev/ttyUSB1 open for GPS synchronization
	98	Fri Mar 6 04:09:00 2020 cron.err crond[1689]: time disparity of 4301528 minutes detected
	99	Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ sockfd=4
	100	Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ sockfd=5
	101	Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ FPort Filter: 0
	102	Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ DevAddrMask: 0x0
	103	Fri Mar 6 04:09:34 2020 daemon.info lora_pkt_fwd[3016]: INFO: [jit] queue is empty
4.3	104	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	105	(% style="color:black" %)"rxnb":0,"rxok":0,"rxfw":0,"ackr":0.0,"dwnb":0,"txnb":0}}
	106	Fri Mar 6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [up] PUSH_ACK received in 293 ms
	107	Fri Mar 6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [down] PULL_ACK received in 596 ms
	108	)))
8.1	109
	110
10.1	111	= 3. Add GPS support on LPS8v2 =
8.1	112
16.1	113	(((
	114	(% style="color:blue" %)Below are the steps:
	115	)))
	116
	117	(((
	118	~1. Open the box and connect GPS antenna to GNSS port of EC25
	119	)))
	120
	121	[[image:image-20231208153214-1.png\|\|height="426" width="590"]]
	122
	123	Connect GPS antenna
	124
	125
	126	2. modify the two files:
	127
	128	/etc/rc.local
	129
	130	(% class="box" %)
	131	(((
	132	#!/bin/sh -e
	133	#
	134	# rc.local
	135	#
	136	# This script is executed at the end of each multiuser runlevel.
	137	# Make sure that the script will "exit 0" on success or any other
	138	# value on error.
	139	#
	140	# In order to enable or disable this script just change the execution
	141	# bits.
	142	#
	143	# By default this script does nothing.
	144
	145	echo 0 > /sys/class/leds/dragino\:blue\:opt/brightness
	146	echo 0 > /sys/class/leds/dragino\:green\:stat/brightness
	147	echo 0 > /sys/class/leds/dragino\:red\:sys/brightness
	148	(% style="color:red" %)echo AT+QGPS=1 > /dev/ttyUSB2
	149
	150
	151	exit 0
	152	)))
	153
17.1	154	(% style="color:red" %)Note: (%%) After above settings, LPS8v2 will (% style="color:blue" %)enable GPS(%%) automatically on boot.
16.1	155
	156
17.1	157	The user can run (% style="color:red" %)"echo AT+QGPS=1 > /dev/ttyUSB2" (%%)to manually (% style="color:blue" %)enable GPS.(%%)
16.1	158
17.1	159	/usr/local/dragino/generate-config.sh, after configuring this, on the web page, select any frequency band and save to make this take effect.
16.1	160
	161	(% class="box" %)
	162	(((
	163	gen_gw_cfg() {
	164	json_init
	165	json_add_object gateway_conf
	166	json_add_string "platform" "SX1$chip"
	167	json_add_string "description" "Dragino LoRaWAN Gateway"
	168	json_add_string "gateway_ID" "$gwid"
	169	json_add_boolean "radiostream_enable" 1
	170	json_add_string "ghost_host" "localhost"
	171	json_add_string "ghost_port" "1760"
	172	json_add_boolean "manage_enable" 0
	173	json_add_boolean "custom_downlink" 0
	174	json_add_int "stat_interval" "30"
	175	json_add_boolean "wd_enable" 1
	176	json_add_boolean "mac_decode" 0
	177	json_add_boolean "mac2file" 0
	178	json_add_boolean "mac2db" 0
	179	json_add_string "log_mask" "1111"
17.1	180	(% style="color:red" %)json_add_string "gps_tty_path" "/dev/ttyUSB1" ~-~-~-~--> Add this line so lora program knows to get the gps info from EC25(%%)
16.1	181	json_add_double "ref_latitude" "$latitude"
	182	json_add_double "ref_longitude" "$longitude"
	183	json_add_double "ref_altitude" "$altitude"
	184	json_add_int "beacon_period" "0"
	185	json_add_int "beacon_freq_hz" "869525000"
	186	)))
	187
	188	3. Reboot the device and run journalctl -u draginofwd -f to verify if GPS already works.
	189
	190	[[image:image-20231208160114-2.png\|\|height="288" width="907"]]
	191
	192
	193	[[image:image-20231208161058-5.png\|\|height="548" width="965"]]
	194
	195
8.1	196

Wiki source code of Add GPS Support in LG308N / LPS8v2

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