Last modified by Xiaoling on 2023/04/20 18:14
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From version < 21.4 >
edited by Xiaoling
on 2023/04/20 18:11
To version < 1.3 >
edited by Xiaoling
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1 -**Table of Contents:**
1 +Contents:
2 2  
3 -{{toc/}}
4 4  
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.
9 +* 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 15  
16 -(((
17 -The basic of this feature is the decoding of (% style="color:red" %)**LoRaWAN ABP End Node**(%%). Requirements:
18 -)))
12 +The basic of this feature is the decoding of LoRaWAN ABP End Node. Requirements:
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
14 +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
15 +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]]
16 +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: [[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]]
23 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/]](%%)**
19 += 2. How it works
20 +\\Video Instruction: [[https:~~/~~/youtu.be/ZBjXwmp7rwM>>url:https://youtu.be/ZBjXwmp7rwM]] =
25 25  
26 -
27 -
28 -= 2. How it works =
29 -
30 -
31 -(% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/ZBjXwmp7rwM>>url:https://youtu.be/ZBjXwmp7rwM]]**
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 -(% class="box infomessage" %)
37 -(((
38 -**AT+NWKSKEY=72 32 63 95 dd 8f e2 b2 13 66 e4 35 93 8f 55 df
24 +{{{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**
41 -)))
26 +AT+DADDR=2602111D
27 +}}}
42 42  
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 45  
46 -
47 -)))
48 -
49 49  We need to input above keys in LG308 and enable ABP decryption.
50 50  
33 +[[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 -(((
64 -We can see the log of LG308 to know this packet arrive.
42 +We can see the log of LG308 to know this packet arrive
65 65  
66 -
67 -)))
44 +[[image:https://wiki.dragino.com/images/thumb/1/16/ABP_DECODE_2.png/600px-ABP_DECODE_2.png||height="205" width="600"]]
68 68  
69 -[[image:image-20220527161149-2.png]]
46 +LG308 log by "logread -f" command
70 70  
71 71  
72 -LG308 log by "(% style="color:red" %)**logread -f**" (%%)command
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 -(% class="box" %)
79 -(((
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
51 +{{{root@dragino-1d25dc:~# hexdump /var/iot/channels/2602111D
52 +0000000 4646 4646 4646 3946 3030 3030 3030 3546 --> Got RSSI and SNR
53 +0000010 cc0c 0b63 0266 017f ff7f ff00 --> Payload
83 83  000001c
84 -)))
55 +}}}
85 85  
86 -* **RSSI**: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
57 +* RSSI: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
58 +* SNR: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
59 +* 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 89  
90 -* **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
91 -
92 -(% class="box" %)
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
96 -root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
62 +{{{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:
63 +in LGT92, use AT+SEND=12:hello world to send ASCII string
64 +root@dragino-1d25dc:~# hexdump /var/iot/channels/2602111D
97 97  0000000 4646 4646 4646 3946 3030 3030 3030 3546
98 -0000010 6865 6c6c 6f20 776f 726c 6400      ~-~-> Got ASCII code "hello world"    
66 +0000010 6865 6c6c 6f20 776f 726c 6400 --> Got ASCII code "hello world"
99 99  000001c
100 -)))
68 +}}}
101 101  
70 +{{{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.
71 +}}}
102 102  
103 -(% class="box" %)
104 -(((
105 -(% 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.
106 -)))
107 -
108 -
109 109  === 2.2.1 Decode Method ===
110 110  
75 +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.
111 111  
112 -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.
113 -
114 114  For example we have a LHT65 , works in ABP mode and gateway successful get the data, which are:
115 115  
116 -(% class="box" %)
117 -(((
118 -root@dragino-1baf44:~~# hexdump /var/iot/channels/01826108
79 +{{{root@dragino-1baf44:~# hexdump /var/iot/channels/01826108
119 119  0000000 4646 4646 4646 4537 3030 3030 3030 3438
120 -0000010 ccd1 7fff 7fff 017f ff7f ff00         
81 +0000010 ccd1 7fff 7fff 017f ff7f ff00
121 121  000001c
122 -)))
83 +}}}
123 123  
124 -
125 125  If we choose ASCII decoder, the MQTT process will send out with mqtt-data:
126 126  
127 -(% class="box" %)
128 -(((
129 -Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
87 +{{{Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
130 130  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:decoder: ASCII
131 -Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: (% style="color:#037691" %)**ffffffe700000048ccd17fff7fff017fff7fff00**
132 -)))
89 +Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: ffffffe700000048ccd17fff7fff017fff7fff00
90 +}}}
133 133  
134 -
135 135  If we choose Decode_LHT65, the MQTT process will send out with mqtt-data
136 136  
137 -(% class="box" %)
138 -(((
139 -Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
94 +{{{Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
140 140  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:decoder: Dragino_LHT65
141 -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,
142 -"EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}(%%)**
143 -)))
96 +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,
97 +"EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}
98 +}}}
144 144  
145 145  Above scripts are store in /etc/lora/decoder/. User can put their scripts here and select it in the UI.
146 146  
... ... @@ -147,130 +147,94 @@
147 147  
148 148  === 2.2.2 How to Decode My End Node ===
149 149  
105 +1/ Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
150 150  
151 -**1.** Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
107 +2/ Don't choose MQTT service, use LoRaWAN.
152 152  
153 -**2. **Don't choose MQTT service, use LoRaWAN.
109 +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
154 154  
155 -**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
111 +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:
156 156  
157 -**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:
158 -
159 159  {{{/etc/lora/decoder/Dragino_LHT65 END_NODE_DEV_ADDR
160 160  }}}
161 161  
162 -**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.
116 +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:
163 163  
164 -
165 -(% style="color:red" %)
166 -**Some notice:**
167 -
168 168  * RSSI and SNR are added when gateway receive the packet, so there is always this field.
169 -
170 170  * If you rename the file, please make it executable.
171 -
172 172  * See this link for lua.bit module: [[http:~~/~~/luaforge.net/projects/bit/>>url:http://luaforge.net/projects/bit/]]
173 -
174 174  * Lua json module: [[http:~~/~~/json.luaforge.net/>>url:http://json.luaforge.net/]]
175 -
176 176  * the last line return is what will be used for MQTT
177 -
178 178  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
179 179  
180 -
181 -
182 182  == 2.2 Downstream ==
183 183  
184 -
185 185  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
186 186  
187 187  The file should use below format:
188 188  
189 -(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload**
190 190  
132 +dev_addr,imme/time,txt/hex,payload
191 191  
192 -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
134 +Since fimware > Dragino-v2 lgw-5.4.1608518541 . Support more option
193 193  
194 -(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow,Fport**
136 +dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow
195 195  
196 -* **dev_addr:** Inptu the device address
197 -
198 -* **imme/time:**
138 +* dev_addr: Inptu the device address
139 +* imme/time:
199 199  ** imme: send downstream immediately,For Class C end node.
200 200  ** time: send downstream after receive device's uplink. For Class A end node
201 -
202 -* **txt/hex:**
142 +* txt/hex:
203 203  ** txt: send payload in ASCII
204 204  ** hex: send payload in HEX
205 -
206 -* **payload: **payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
207 -
208 -* **txpw:** Transmit Power. example: 20
209 -
210 -* **txbw:** bandwidth:
145 +* payload: payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
146 +* txpw: Transmit Power. example: 20
147 +* txbw: bandwidth:
211 211  ** 1: 500 kHz
212 212  ** 2: 250 kHz
213 213  ** 3: 125 kHz
214 214  ** 4: 62.5 kHz
215 -* **SF:** Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
152 +* SF: Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
153 +* Frequency: Transmit Frequency: example: 923300000
154 +* rxwindow: transmit on Rx1Window or Rx2Window.
216 216  
217 -* **Frequency:** Transmit Frequency: example: 923300000
218 218  
219 -* **rxwindow:** transmit on Rx1Window or Rx2Window.
157 +Completely exmaple:
220 220  
221 -* **Fport: **Transmit port,example:8
159 +* Old version: echo 018193F4,imme,hex,0101 > /var/iot/push/test
160 +* New version: echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
222 222  
223 223  
224 -(% style="color:blue" %)**Completely exmaple:**
163 +Downstream Frequency
225 225  
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 -
231 -Downstream(% style="color:#037691" %)** Frequency:**
232 -
233 233  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
234 234  
235 235  * EU868: 869.525Mhz, DR0(SF12BW125)
236 -
237 237  * US915: 923.3Mhz, SF12 BW500
238 -
239 239  * CN470: 505.3Mhz, SF12 BW125
240 -
241 241  * AU915: 923.3Mhz, SF12 BW500
242 -
243 243  * AS923: 923.2Mhz, SF10 BW125
244 -
245 245  * KR920: 921.9Mhz, SF12 BW125
246 -
247 247  * IN865: 866.55Mhz, SF10 BW125
248 -
249 249  * RU864: 869.1Mhz, SF12 BW125
250 250  
251 251  
177 +Examples:
252 252  
253 -(% style="color:#037691" %)**Examples:**
179 +{{{we can use echo command to create files in LG308 for downstream.
180 +root@dragino-1d25dc:~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
254 254  
255 -(% class="box" %)
256 -(((
257 -we can use echo command to create files in LG308 for downstream.
258 -root@dragino-1d25dc:~~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
182 +1) From logread -f of gateway, we can see it has been added as pedning.
183 +lora_pkt_fwd[4286]: INFO~ [DNLK]Looking file : test
184 +lora_pkt_fwd[4286]: INFO~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
185 +lora_pkt_fwd[4286]: INFO~ [DNLK] DNLINK PENDING!(1 elems).
259 259  
260 -
261 -**1)** From logread -f of gateway, we can see it has been added as pedning.
262 -lora_pkt_fwd[4286]: INFO~~ [DNLK]Looking file : test
263 -lora_pkt_fwd[4286]: INFO~~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
264 -lora_pkt_fwd[4286]: INFO~~ [DNLK] DNLINK PENDING!(1 elems).
265 -
266 -
267 -**2)** When there is an upstrea from end node, this downstream will be sent and shows:
187 +2) When there is an upstrea from end node, this downstream will be sent and shows:
268 268  lora_pkt_fwd[4286]: INFO: tx_start_delay=1497 (1497.000000) - (1497, bw_delay=0.000000, notch_delay=0.000000)
269 269  lora_pkt_fwd[4286]: [LGWSEND]lgw_send done: count_us=3537314420, freq=923300000, size=17
270 270  
271 -
272 -**3)** and the end node will got:
273 -[5764825]~*~*~*~** UpLinkCounter= 98 ~*~*~*~**
191 +3) and the end node will got:
192 +[5764825]***** UpLinkCounter= 98 *****
274 274  [5764827]TX on freq 905300000 Hz at DR 0
275 275  Update Interval: 60000 ms
276 276  [5765202]txDone
... ... @@ -280,11 +280,11 @@
280 280  [5767501]rxDone
281 281  Rssi= -41
282 282  Receive data
283 -(% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
202 +2:12345678 --> Hex
203 +}}}
284 284  
285 -
286 -**4) **If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
287 -[5955877]~*~*~*~** UpLinkCounter= 102 ~*~*~*~**
205 +{{{4) If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
206 +[5955877]***** UpLinkCounter= 102 *****
288 288  [5955879]TX on freq 904100000 Hz at DR 0
289 289  Update Interval: 60000 ms
290 290  [5956254]txDone
... ... @@ -294,142 +294,114 @@
294 294  [5958595]rxDone
295 295  Rssi= -37
296 296  Receive data
297 -(% style="color:#037691" %)**2:3132333435363738**(%%) ~-~-> ASCII string "12345678"
298 -)))
216 +2:3132333435363738 --> ASCII string "12345678"
217 +}}}
299 299  
300 -
301 301  = 3. Example 1: Communicate with LT-22222-L =
302 302  
303 -
304 304  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]]
305 305  
306 -(% class="box" %)
307 -(((
308 -//#!/bin/sh
223 +{{{#!/bin/sh
309 309  # This scripts shows how to use LPS8/LG308/DLOS8 to communicate with two LoRaWAN End Nodes, without the use of internet or LoRaWAN server
310 310  #
311 -# Hardware Prepare:
312 -# 1. LT-22222-L x 2, both are configured to work in
313 -#   a) Class C ;
314 -# b) ABP Mode ;
226 +# Hardware Prepare:
227 +# 1. LT-22222-L x 2, both are configured to work in
228 +# a) Class C ;
229 +# b) ABP Mode ;
315 315  # c) AT+Mod=1
316 -# 2. LPS8,
317 -#   a) Firmware version >
318 -#   b) Input the LT-22222-L keys in LPS so LPS8 can talk with them.
319 -#   c) Lorawan server choose built-in
320 -#   d) in Custom page, select custom script to point to this script. (put this script in /etc/iot/scripts directory)
231 +# 2. LPS8,
232 +# a) Firmware version >
233 +# b) Input the LT-22222-L keys in LPS so LPS8 can talk with them.
234 +# c) Lorawan server choose built-in
235 +# d) in Custom page, select custom script to point to this script. (put this script in /etc/iot/scripts directory)
236 +#
237 +# How it works?
238 +# a) Devices 1 sends a uplink payload to LPS8. LPS8 will get the DI1 and DI2 info from the payload
239 +# b) LPS8 will send a message to Device 2 to set the Device2 DO1 = Device1 DI1, and Device DO2 = Device DI2.
240 +# c) Device2 will change DO1 and DO2 to according to the message from LPS8, and send back a message to LPS8 with the its DO1
241 +# and DO2 value. LPS8 will ask Device1 to change its DO1 to same as Device 2, and change the DO2 to the same as Device 2.
242 +# ( The purpose of this step is to show that the Device2 has already do the change there).
243 +#
244 +# For example: If current status of Device1 and Device2 leds shows:
245 +# Device1: DI1: ON, DI2: ON , DO1: OFF, DO2: OFF
246 +# Device2: DI1: OFF, DI2: OFF , DO1: OFF, DO2: OFF
321 321  #
322 -# How it works?
323 -#   a) Devices 1 sends a uplink payload to LPS8. LPS8 will get the DI1 and DI2 info from the payload
324 -#   b) LPS8 will send a message to Device 2 to set the Device2 DO1 = Device1 DI1, and Device DO2 = Device DI2.
325 -#   c) Device2 will change DO1 and DO2 to according to the message from LPS8, and send back a message to LPS8 with the its DO1
326 -#   and DO2 value. LPS8 will ask Device1 to change its DO1 to same as Device 2, and change the DO2 to the same as Device 2.
327 -#   ( The purpose of this step is to show that the Device2 has already do the change there).
328 -#
329 -#  For example: If current status of Device1 and Device2 leds shows:
330 -#  Device1: DI1: ON, DI2: ON , DO1: OFF,  DO2: OFF
331 -#  Device2: DI1: OFF, DI2: OFF , DO1: OFF,  DO2: OFF
332 -#
333 -#  Step2  will cause below change:
334 -#  Device1: DI1: ON, DI2: ON , DO1: OFF,  DO2: OFF
335 -#  Device2: DI1: OFF, DI2: OFF , DO1: ON,  DO2: ON
336 -# 
337 -#  Step3 will cause below change:
338 -#  Device1: DI1: ON, DI2: ON , DO1: ON,  DO2: ON
339 -#  Device2: DI1: OFF, DI2: OFF , DO1: ON,  DO2: ON
340 -#  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
341 -#  whether the Device 2 has been changed.//
342 -)))
248 +# Step2 will cause below change:
249 +# Device1: DI1: ON, DI2: ON , DO1: OFF, DO2: OFF
250 +# Device2: DI1: OFF, DI2: OFF , DO1: ON, DO2: ON
251 +#
252 +# Step3 will cause below change:
253 +# Device1: DI1: ON, DI2: ON , DO1: ON, DO2: ON
254 +# Device2: DI1: OFF, DI2: OFF , DO1: ON, DO2: ON
255 +# 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
256 +# whether the Device 2 has been changed.}}}
343 343  
258 +~1. Input keys
344 344  
345 -(% style="color:blue" %)**1. Input keys**
260 +[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
346 346  
347 -
348 -[[image:image-20220527162450-3.png]]
349 -
350 350  Input Keys in LPS8
351 351  
264 +2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.
352 352  
266 +3. Choose Built-in server
353 353  
354 -(% style="color:blue" %)**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
268 +[[image:https://wiki.dragino.com/images/thumb/d/d7/LPS8_LT-22222_2.png/600px-LPS8_LT-22222_2.png||height="264" width="600"]]
355 355  
356 -
357 -(% style="color:blue" %)**3. Choose Built-in server**
358 -
359 -
360 -[[image:image-20220527162518-4.png]]
361 -
362 362  Choose Built-in server
363 363  
272 +4. Run the script.
364 364  
274 +[[image:https://wiki.dragino.com/images/thumb/3/39/LPS8_LT-22222_3.png/600px-LPS8_LT-22222_3.png||height="389" width="600"]]
365 365  
366 -(% style="color:blue" %)**4. Run the script.**
367 -
368 -
369 -[[image:image-20220722115213-2.png]]
370 -
371 371  Run the script
372 372  
278 +5. Output:
373 373  
280 +[[image:https://wiki.dragino.com/images/thumb/f/fe/LPS8_LT-22222_4.png/600px-LPS8_LT-22222_4.png||height="433" width="600"]]
374 374  
375 -(% style="color:blue" %)**5. Output:**
376 -
377 -
378 -[[image:image-20220722115133-1.png]]
379 -
380 380  Output from LPS8
381 381  
382 382  
383 383  = 4. Example 2: Communicate to TCP Server =
384 384  
287 +[[image:https://wiki.dragino.com/images/thumb/7/75/LPS8_TCP_0.png/600px-LPS8_TCP_0.png||height="370" width="600"]]
385 385  
386 -[[image:image-20220527162648-7.png]]
387 -
388 388  Network Structure
389 389  
390 390  
391 391  Full instruction video inlcude how to write scripts to fit server needed is here:
392 392  
393 -(% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]**
394 394  
395 -(% style="display:none" %) (%%)
295 +Video Instruction: [[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]
396 396  
397 -(% style="color:red" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
398 398  
298 +Note: Firmware version must be higher than lgw-5.4.1607519907
399 399  
400 400  Assume we already set up ABP keys in the gateway:
401 401  
402 -[[image:image-20220527162852-8.png]]
302 +[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
403 403  
404 404  Input Keys in LPS8
405 405  
306 +run socket tool in PC
406 406  
308 +[[image:https://wiki.dragino.com/images/thumb/4/4b/LPS8_TCP_2.png/600px-LPS8_TCP_2.png||height="212" width="600"]]
407 407  
408 -(% style="color:blue" %)**run socket tool in PC**
409 -
410 -
411 -[[image:image-20220527163028-9.png]]
412 -
413 -
414 414  Socket tool
415 415  
416 416  
313 +Input Server address and port
417 417  
418 -(% style="color:blue" %)**Input Server address and port**
315 +[[image:https://wiki.dragino.com/images/thumb/c/c6/LPS8_TCP_3.png/600px-LPS8_TCP_3.png||height="306" width="600"]]
419 419  
420 -
421 -[[image:image-20220527163106-10.png]]
422 -
423 423  Input Server address and port
424 424  
425 425  
320 +See value receive in socket tool. :
426 426  
427 -(% style="color:blue" %)**See value receive in socket tool:**
322 +[[image:https://wiki.dragino.com/images/thumb/2/20/LPS8_TCP_4.png/600px-LPS8_TCP_4.png||height="219" width="600"]]
428 428  
429 -
430 -[[image:image-20220527163144-11.png||height="502" width="1371"]]
431 -
432 432  value receive in socket tool
433 433  
434 -
435 435  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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