Changes for page Communicate with ABP End Node without LoRaWAN Network Server --- LG308

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1		-**Table of Contents:**
	1	+ **Contents:**
2	2
3	3	{{toc/}}
4	4
5	5
6		-
7	7	= 1. Introduction =
8	8
9		-
10	10	The Dragino LoRaWAN gateway can commuicate with LoRaWAN ABP End Node without the need of LoRaWAN server. It can be used in some cases such as:
11	11
12	12	* No internet connection.
	11	+* User wants to get data forward in gateway and forward to their server base on MQTT/HTTP, etc. (Combine ABP communication method and [[MQTT forward together>>url:https://wiki.dragino.com/index.php/MQTT_Forward_Instruction]]).
13	13
14		-* User wants to get data forward in gateway and forward to their server base on MQTT/HTTP, etc. (Combine ABP communication method and [[MQTT forward together>>MQTT Forward Instruction]]).
15		-
16	16	(((
17		-The basic of this feature is the decoding of (% style="color:red" %)**LoRaWAN ABP End Node**(%%). Requirements:
	14	+The basic of this feature is the decoding of **LoRaWAN ABP End Node**. Requirements:
18	18	)))
19	19
20		-* LoRaWAN End Node in ABP mode. Make sure your end node works in this mode. End node most are default set to OTAA mode
	17	+1. LoRaWAN End Node in ABP mode. Make sure your end node works in this mode. End node most are default set to OTAA mode
	18	+1. LoRaWAN Gateway model: [[LPS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.html]], [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]], [[DLOS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] ,[[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]]
	19	+1. Firmware version for below instruction:[[Since LG02_LG08~~-~~-build-v5.4.1593400722-20200629-1120>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]]
21	21
22		-* LoRaWAN Gateway model: [[DLOS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/225-dlos8n.html]], [[LPS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/200-lps8n.html]], [[LG308N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/229-lg308n.html]]
23		-
24		-* Firmware version for below instruction:  **[[(% style="color:purple" %)Since LG02_LG08~~-~~-build-v5.4.1593400722-20200629-1120>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]](%%)**
25		-
26		-
27		-
28	28	= 2. How it works =
29	29
30	30
31		-(% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/ZBjXwmp7rwM>>url:https://youtu.be/ZBjXwmp7rwM]]**
	24	+**Video Instruction**: [[https:~~/~~/youtu.be/ZBjXwmp7rwM>>url:https://youtu.be/ZBjXwmp7rwM]]
32	32
33		-
34	34	Assume we have the LoRaWAN tracker LGT92 which works in ABP mode and US915 band. It has below keys:
35	35
36	36	(% class="box infomessage" %)
37	37	(((
38		-**AT+NWKSKEY=72 32 63 95 dd 8f e2 b2 13 66 e4 35 93 8f 55 df
	30	+AT+NWKSKEY=72 32 63 95 dd 8f e2 b2 13 66 e4 35 93 8f 55 df
39	39	AT+APPSKEY=b3 17 f8 14 7a 43 27 8a 6a 31 c4 47 3d 55 5d 33
40		-AT+DADDR=2602111D**
	32	+AT+DADDR=2602111D
41	41	)))
42	42
43	43	(((
44	44	and we have the LG308 works and US915 band and support ABP decryption. User can input these keys in LG308 so the LG308 can communicate with LGT92.
45		-
46		-
47	47	)))
48	48
49	49	We need to input above keys in LG308 and enable ABP decryption.
50	50
	41	+[[image:https://wiki.dragino.com/images/thumb/5/55/LG308_MQTT_1.png/600px-LG308_MQTT_1.png||height="329" width="600"]]
51	51
52		-[[image:image-20220527161119-1.png]]
53		-
54		-
55	55	Input the ABP keys in LG308
56	56
57	57
58	58	== 2.1 Upstream ==
59	59
60		-
61	61	Now when this End Node (Dev Addr=2602111D) send a uplink packet. When this packet arrive LG308, LG308 will decode it and put the decode data on the file /var/iot/channels/2602111D . So we have this data for further process with other applications in LG308.
62	62
63	63	(((
64		-We can see the log of LG308 to know this packet arrive.
65		-
66		-
	51	+We can see the log of LG308 to know this packet arrive
67	67	)))
68	68
69		-[[image:image-20220527161149-2.png]]
	54	+[[image:https://wiki.dragino.com/images/thumb/1/16/ABP_DECODE_2.png/600px-ABP_DECODE_2.png||height="205" width="600"]]
70	70
	56	+LG308 log by "logread -f" command
71	71
72		-LG308 log by "(% style="color:red" %)**logread -f**" (%%)command
73	73
74		-
75		-
76	76	The data of End Node is stored in the file /var/iot/channels/2602111D. We can use hexdump command to check it.
77	77
78	78	(% class="box" %)
79	79	(((
80	80	root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
81		-0000000 (% style="color:#037691" %)**4646 4646 4646 3946 3030 3030 3030 3546**(%%)      ~-~-> Got RSSI and SNR
82		-0000010 (% style="color:#037691" %)**cc0c 0b63 0266 017f ff7f ff00 **(%%) ~-~-> Payload
	64	+0000000 (% class="mark" %)**4646 4646 4646 3946 3030 3030 3030 3546**(%%)      ~-~-> Got RSSI and SNR
	65	+0000010 (% class="mark" %)**cc0c 0b63 0266 017f ff7f ff00 **(%%) ~-~-> Payload
83	83	000001c
84	84	)))
85	85
86		-* **RSSI**: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
	69	+* RSSI: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
	70	+* SNR: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
	71	+* Payload: 0xcc0c 0b63 0266 017f ff7f ff00
87	87
88		-* **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
89		-
90		-* **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
91		-
92	92	(% class="box" %)
93	93	(((
94		-(% style="color:red" %)**Notice 1**(%%): The data file stored in LG308 for the end node is bin file. If the end node sends ASCII string to gateway, the output will as below:
95		-in LGT92, use (% style="color:#037691" %)**AT+SEND=12:hello world** (%%)to send ASCII string
	75	+(% class="mark" %)**Notice 1**(%%): The data file stored in LG308 for the end node is bin file. If the end node sends ASCII string to gateway, the output will as below:
	76	+in LGT92, use **AT+SEND=12**:hello world to send ASCII string
96	96	root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
97	97	0000000 4646 4646 4646 3946 3030 3030 3030 3546
98	98	0000010 6865 6c6c 6f20 776f 726c 6400      ~-~-> Got ASCII code "hello world"
...	...	@@ -99,19 +99,15 @@
99	99	000001c
100	100	)))
101	101
102		-
103		-
104	104	(% class="box" %)
105	105	(((
106		-(% style="color:red" %)**Notice 2**(%%): The upstream payload length should match the LoRaWAN length requirement (max length depends on Frequency and DR), otherwise the gateway can't decode the payload.
	85	+(% class="mark" %)**Notice 2**(%%): The upstream payload length should match the LoRaWAN length requirement (max length depends on Frequency and DR), otherwise the gateway can't decode the payload.
107	107	)))
108	108
109		-
110	110	=== 2.2.1 Decode Method ===
111	111
	90	+The decode methods: **ASCII String, Decode_LHT65** doesn't affect how the sensor data is stored, they are to define how should the sensor data to be sent.
112	112
113		-The decode methods: (% style="color:#037691" %)**ASCII String, Decode_LHT65**(%%) doesn't affect how the sensor data is stored, they are to define how should the sensor data to be sent.
114		-
115	115	For example we have a LHT65 , works in ABP mode and gateway successful get the data, which are:
116	116
117	117	(% class="box" %)
...	...	@@ -122,7 +122,6 @@
122	122	000001c
123	123	)))
124	124
125		-
126	126	If we choose ASCII decoder, the MQTT process will send out with mqtt-data:
127	127
128	128	(% class="box" %)
...	...	@@ -129,10 +129,9 @@
129	129	(((
130	130	Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
131	131	Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:decoder: ASCII
132		-Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: (% style="color:#037691" %)**ffffffe700000048ccd17fff7fff017fff7fff00**
	108	+Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: ffffffe700000048ccd17fff7fff017fff7fff00
133	133	)))
134	134
135		-
136	136	If we choose Decode_LHT65, the MQTT process will send out with mqtt-data
137	137
138	138	(% class="box" %)
...	...	@@ -139,8 +139,8 @@
139	139	(((
140	140	Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
141	141	Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:decoder: Dragino_LHT65
142		-Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]:** (% style="color:#037691" %){"Hum_SHT":32.7,"BatV":3.281,"TempC_DS":32.9,
143		-"EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}(%%)**
	117	+Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: {"Hum_SHT":32.7,"BatV":3.281,"TempC_DS":32.9,
	118	+"EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}
144	144	)))
145	145
146	146	Above scripts are store in /etc/lora/decoder/. User can put their scripts here and select it in the UI.
...	...	@@ -148,127 +148,100 @@
148	148
149	149	=== 2.2.2 How to Decode My End Node ===
150	150
	126	+1/ Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
151	151
152		-**1.** Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
	128	+2/ Don't choose MQTT service, use LoRaWAN.
153	153
154		-**2. **Don't choose MQTT service, use LoRaWAN.
	130	+3/ When your end node send a message to the gateway, there will be a file store in /var/iot/channels. full path should be /var/iot/channels/END_NODE_DEV_ADDR
155	155
156		-**3.** When your end node send a message to the gateway, there will be a file store in /var/iot/channels. full path should be /var/iot/channels/END_NODE_DEV_ADDR
	132	+4/ Use the /etc/lora/decoder/Dragino_LHT65 as template to decode your payload. This script is written in Lua language. User can manually call this script when you see the data file in /var/iot/channels by running:
157	157
158		-**4.** Use the /etc/lora/decoder/Dragino_LHT65 as template to decode your payload. This script is written in Lua language. User can manually call this script when you see the data file in /var/iot/channels by running:
159		-
160	160	{{{/etc/lora/decoder/Dragino_LHT65 END_NODE_DEV_ADDR
161	161	}}}
162	162
163		-**5.** What you see as output is the MQTT data device will upload, user's end node has different payload compare with LHT65, most properly this file will report with error. User need to modify to match the actual payload.
	137	+5/ What you see as output is the MQTT data device will upload, user's end node has different payload compare with LHT65, most properly this file will report with error. User need to modify to match the actual payload. Some notice:
164	164
165		-
166		-(% style="color:red" %)
167		-**Some notice:**
168		-
169	169	* RSSI and SNR are added when gateway receive the packet, so there is always this field.
170		-
171	171	* If you rename the file, please make it executable.
172		-
173	173	* See this link for lua.bit module: [[http:~~/~~/luaforge.net/projects/bit/>>url:http://luaforge.net/projects/bit/]]
174		-
175	175	* Lua json module: [[http:~~/~~/json.luaforge.net/>>url:http://json.luaforge.net/]]
176		-
177	177	* the last line return is what will be used for MQTT
178		-
179	179	* User can use other language ,not limited to Lua, just make sure the return is what you want to send.
180	180
181		-
182		-
183	183	== 2.2 Downstream ==
184	184
185		-
186	186	In LG308, we can create a file in the directory /var/iot/push for downstream purpose. We recommend using each command to generate this file. This file will be used for transmission and auto-deleted after used
187	187
188	188	The file should use below format:
189	189
190		-(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload**
	152	+(% class="mark" %)**dev_addr,imme/time,txt/hex,payload**
191	191
	154	+Since fimware > Dragino-v2 lgw-5.4.1608518541 . Support more option
192	192
193		-Since fimware > [[Dragino lgw~~-~~-build-v5.4.1668567157>>https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG308-LG301/Firmware/Release/]] . Support more option
	156	+(% class="mark" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**
194	194
195		-(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow,Fport**
196		-
197		-* **dev_addr:** Inptu the device address
198		-
199		-* **imme/time:**
	158	+* dev_addr: Inptu the device address
	159	+* imme/time:
200	200	** imme: send downstream immediately,For Class C end node.
201	201	** time: send downstream after receive device's uplink. For Class A end node
202		-
203		-* **txt/hex:**
	162	+* txt/hex:
204	204	** txt: send payload in ASCII
205	205	** hex: send payload in HEX
206		-
207		-* **payload: **payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
208		-
209		-* **txpw:** Transmit Power. example: 20
210		-
211		-* **txbw:** bandwidth:
	165	+* payload: payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
	166	+* txpw: Transmit Power. example: 20
	167	+* txbw: bandwidth:
212	212	** 1: 500 kHz
213	213	** 2: 250 kHz
214	214	** 3: 125 kHz
215	215	** 4: 62.5 kHz
216		-* **SF:** Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
	172	+* SF: Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
	173	+* Frequency: Transmit Frequency: example: 923300000
	174	+* rxwindow: transmit on Rx1Window or Rx2Window.
217	217
218		-* **Frequency:** Transmit Frequency: example: 923300000
	176	+Completely exmaple:
219	219
220		-* **rxwindow:** transmit on Rx1Window or Rx2Window.
	178	+* Old version: echo 018193F4,imme,hex,0101 > /var/iot/push/test
	179	+* New version: echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
221	221
222		-* **Fport: **Transmit port,example:8
	181	+(% class="mark" %)**Downstream Frequency**
223	223
224		-(% style="color:blue" %)**Completely exmaple:**
225		-
226		-* **Old version:** echo 018193F4,imme,hex,0101 > /var/iot/push/test
227		-
228		-* **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2,8 > /var/iot/push/test
229		-
230		-Downstream(% style="color:#037691" %)** Frequency:**
231		-
232	232	The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
233	233
234	234	* EU868: 869.525Mhz, DR0(SF12BW125)
235		-
236	236	* US915: 923.3Mhz, SF12 BW500
237		-
238	238	* CN470: 505.3Mhz, SF12 BW125
239		-
240	240	* AU915: 923.3Mhz, SF12 BW500
241		-
242	242	* AS923: 923.2Mhz, SF10 BW125
243		-
244	244	* KR920: 921.9Mhz, SF12 BW125
245		-
246	246	* IN865: 866.55Mhz, SF10 BW125
247		-
248	248	* RU864: 869.1Mhz, SF12 BW125
249	249
	194	+(% class="mark" %)**Examples:**
250	250
251		-
252		-(% style="color:#037691" %)**Examples:**
253		-
254	254	(% class="box" %)
255	255	(((
256	256	we can use echo command to create files in LG308 for downstream.
257	257	root@dragino-1d25dc:~~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
	200	+)))
258	258
259		-
260		-**1)** From logread -f of gateway, we can see it has been added as pedning.
	202	+(% class="box" %)
	203	+(((
	204	+1) From logread -f of gateway, we can see it has been added as pedning.
261	261	lora_pkt_fwd[4286]: INFO~~ [DNLK]Looking file : test
262	262	lora_pkt_fwd[4286]: INFO~~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
263	263	lora_pkt_fwd[4286]: INFO~~ [DNLK] DNLINK PENDING!(1 elems).
	208	+)))
264	264
265		-
266		-**2)** When there is an upstrea from end node, this downstream will be sent and shows:
	210	+(% class="box" %)
	211	+(((
	212	+2) When there is an upstrea from end node, this downstream will be sent and shows:
267	267	lora_pkt_fwd[4286]: INFO: tx_start_delay=1497 (1497.000000) - (1497, bw_delay=0.000000, notch_delay=0.000000)
268	268	lora_pkt_fwd[4286]: [LGWSEND]lgw_send done: count_us=3537314420, freq=923300000, size=17
	215	+)))
269	269
270		-
271		-**3)** and the end node will got:
	217	+(% class="box" %)
	218	+(((
	219	+3) and the end node will got:
272	272	[5764825]~*~*~*~** UpLinkCounter= 98 ~*~*~*~**
273	273	[5764827]TX on freq 905300000 Hz at DR 0
274	274	Update Interval: 60000 ms
...	...	@@ -279,10 +279,12 @@
279	279	[5767501]rxDone
280	280	Rssi= -41
281	281	Receive data
282		-(% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
	230	+2:12345678    ~-~-> Hex
	231	+)))
283	283
284		-
285		-**4) **If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
	233	+(% class="box" %)
	234	+(((
	235	+4) If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
286	286	[5955877]~*~*~*~** UpLinkCounter= 102 ~*~*~*~**
287	287	[5955879]TX on freq 904100000 Hz at DR 0
288	288	Update Interval: 60000 ms
...	...	@@ -293,18 +293,16 @@
293	293	[5958595]rxDone
294	294	Rssi= -37
295	295	Receive data
296		-(% style="color:#037691" %)**2:3132333435363738**(%%) ~-~-> ASCII string "12345678"
	246	+2:3132333435363738 ~-~-> ASCII string "12345678"
297	297	)))
298	298
299		-
300	300	= 3. Example 1: Communicate with LT-22222-L =
301	301
302		-
303	303	Script can be download from: [[Example Script 1>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/customized_script/&file=talk_to_lt-22222-l_v0.1.sh]]
304	304
305	305	(% class="box" %)
306	306	(((
307		-//#!/bin/sh
	255	+#!/bin/sh
308	308	# This scripts shows how to use LPS8/LG308/DLOS8 to communicate with two LoRaWAN End Nodes, without the use of internet or LoRaWAN server
309	309	#
310	310	# Hardware Prepare:
...	...	@@ -337,98 +337,74 @@
337	337	#  Device1: DI1: ON, DI2: ON , DO1: ON,  DO2: ON
338	338	#  Device2: DI1: OFF, DI2: OFF , DO1: ON,  DO2: ON
339	339	#  So if a person is in the Device 1 location, he can check if the DO LED match DI LEDs on Device 1 to confirm
340		-#  whether the Device 2 has been changed.//
	288	+#  whether the Device 2 has been changed.
341	341	)))
342	342
	291	+~1. Input keys
343	343
344		-(% style="color:blue" %)**1. Input keys**
	293	+[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
345	345
346		-
347		-[[image:image-20220527162450-3.png]]
348		-
349	349	Input Keys in LPS8
350	350
	297	+2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.
351	351
	299	+3. Choose Built-in server
352	352
353		-(% style="color:blue" %)**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
	301	+[[image:https://wiki.dragino.com/images/thumb/d/d7/LPS8_LT-22222_2.png/600px-LPS8_LT-22222_2.png||height="264" width="600"]]
354	354
355		-
356		-(% style="color:blue" %)**3. Choose Built-in server**
357		-
358		-
359		-[[image:image-20220527162518-4.png]]
360		-
361	361	Choose Built-in server
362	362
	305	+4. Run the script.
363	363
	307	+[[image:https://wiki.dragino.com/images/thumb/3/39/LPS8_LT-22222_3.png/600px-LPS8_LT-22222_3.png||height="389" width="600"]]
364	364
365		-(% style="color:blue" %)**4. Run the script.**
366		-
367		-
368		-[[image:image-20220722115213-2.png]]
369		-
370	370	Run the script
371	371
	311	+5. Output:
372	372
	313	+[[image:https://wiki.dragino.com/images/thumb/f/fe/LPS8_LT-22222_4.png/600px-LPS8_LT-22222_4.png||height="433" width="600"]]
373	373
374		-(% style="color:blue" %)**5. Output:**
375		-
376		-
377		-[[image:image-20220722115133-1.png]]
378		-
379	379	Output from LPS8
380	380
381	381
382	382	= 4. Example 2: Communicate to TCP Server =
383	383
	320	+[[image:https://wiki.dragino.com/images/thumb/7/75/LPS8_TCP_0.png/600px-LPS8_TCP_0.png||height="370" width="600"]]
384	384
385		-[[image:image-20220527162648-7.png]]
386		-
387	387	Network Structure
388	388
389	389
390	390	Full instruction video inlcude how to write scripts to fit server needed is here:
391	391
392		-(% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]**
393	393
394		-(% style="display:none" %) (%%)
	328	+(% class="mark" %)**Video Instruction**: [[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]
395	395
396		-(% style="color:red" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
	330	+(% class="mark" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
397	397
398		-
399	399	Assume we already set up ABP keys in the gateway:
400	400
401		-[[image:image-20220527162852-8.png]]
	334	+[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
402	402
403	403	Input Keys in LPS8
404	404
	338	+run socket tool in PC
405	405
	340	+[[image:https://wiki.dragino.com/images/thumb/4/4b/LPS8_TCP_2.png/600px-LPS8_TCP_2.png||height="212" width="600"]]
406	406
407		-(% style="color:blue" %)**run socket tool in PC**
408		-
409		-
410		-[[image:image-20220527163028-9.png]]
411		-
412		-
413	413	Socket tool
414	414
415	415
	345	+Input Server address and port
416	416
417		-(% style="color:blue" %)**Input Server address and port**
	347	+[[image:https://wiki.dragino.com/images/thumb/c/c6/LPS8_TCP_3.png/600px-LPS8_TCP_3.png||height="306" width="600"]]
418	418
419		-
420		-[[image:image-20220527163106-10.png]]
421		-
422	422	Input Server address and port
423	423
424	424
	352	+See value receive in socket tool. :
425	425
426		-(% style="color:blue" %)**See value receive in socket tool:**
	354	+[[image:https://wiki.dragino.com/images/thumb/2/20/LPS8_TCP_4.png/600px-LPS8_TCP_4.png||height="219" width="600"]]
427	427
428		-
429		-[[image:image-20220527163144-11.png||height="502" width="1371"]]
430		-
431	431	value receive in socket tool
432	432
433		-
434	434	If user want to modify the TCP connection method. He can refer: [[https:~~/~~/github.com/dragino/dragino-packages/blob/lg02/haserl-ui/root/usr/bin/tcp_process.sh>>url:https://github.com/dragino/dragino-packages/blob/lg02/haserl-ui/root/usr/bin/tcp_process.sh]]. Same script is on /usr/bin of gateway.

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