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20	20	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]]
21	21	1. 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/]](%%)**
22	22
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	24	+
	25	+
23	23	= 2. How it works =
24	24
25	25
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135	135	=== 2.2.2 How to Decode My End Node ===
136	136
137	137
138		-**1.** Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
	141	+1/ Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
139	139
140		-**2. **Don't choose MQTT service, use LoRaWAN.
	143	+2/ Don't choose MQTT service, use LoRaWAN.
141	141
142		-**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
	145	+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
143	143
144		-**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:
	147	+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:
145	145
146	146	{{{/etc/lora/decoder/Dragino_LHT65 END_NODE_DEV_ADDR
147	147	}}}
148	148
149		-**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.
	152	+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:
150	150
151		-
152		-(% style="color:red" %)
153		-**Some notice:**
154		-
155	155	* RSSI and SNR are added when gateway receive the packet, so there is always this field.
156	156	* If you rename the file, please make it executable.
157	157	* See this link for lua.bit module: [[http:~~/~~/luaforge.net/projects/bit/>>url:http://luaforge.net/projects/bit/]]
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160	160	* User can use other language ,not limited to Lua, just make sure the return is what you want to send.
161	161
162	162
	162	+
163	163	== 2.2 Downstream ==
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165	165
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199	199	* **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
200	200
201	201
202		-
203	203	(% style="color:#037691" %)**Downstream Frequency**
204	204
205	205	The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
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214	214	* RU864: 869.1Mhz, SF12 BW125
215	215
216	216
217		-
218	218	(% style="color:#037691" %)**Examples:**
219	219
220	220	(% class="box" %)
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221	221	(((
222	222	we can use echo command to create files in LG308 for downstream.
223	223	root@dragino-1d25dc:~~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
	222	+)))
224	224
225		-
	224	+(% class="box" %)
	225	+(((
226	226	**1)** From logread -f of gateway, we can see it has been added as pedning.
227	227	lora_pkt_fwd[4286]: INFO~~ [DNLK]Looking file : test
228	228	lora_pkt_fwd[4286]: INFO~~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
229	229	lora_pkt_fwd[4286]: INFO~~ [DNLK] DNLINK PENDING!(1 elems).
	230	+)))
230	230
231		-
	232	+(% class="box" %)
	233	+(((
232	232	**2)** When there is an upstrea from end node, this downstream will be sent and shows:
233	233	lora_pkt_fwd[4286]: INFO: tx_start_delay=1497 (1497.000000) - (1497, bw_delay=0.000000, notch_delay=0.000000)
234	234	lora_pkt_fwd[4286]: [LGWSEND]lgw_send done: count_us=3537314420, freq=923300000, size=17
	237	+)))
235	235
236		-
	239	+(% class="box" %)
	240	+(((
237	237	**3)** and the end node will got:
238	238	[5764825]~*~*~*~** UpLinkCounter= 98 ~*~*~*~**
239	239	[5764827]TX on freq 905300000 Hz at DR 0
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246	246	Rssi= -41
247	247	Receive data
248	248	(% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
	253	+)))
249	249
250		-
	255	+(% class="box" %)
	256	+(((
251	251	**4) **If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
252	252	[5955877]~*~*~*~** UpLinkCounter= 102 ~*~*~*~**
253	253	[5955879]TX on freq 904100000 Hz at DR 0