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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
23		-
24		-
25		-
26		-
27	27	= 2. How it works =
28	28
29	29
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52	52	Input the ABP keys in LG308
53	53
54	54
55		-
56	56	== 2.1 Upstream ==
57	57
58	58
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81	81	* **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
82	82	* **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
83	83
84		-
85		-
86		-
87	87	(% class="box" %)
88	88	(((
89	89	(% 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:
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94	94	000001c
95	95	)))
96	96
97		-
98	98	(% class="box" %)
99	99	(((
100	100	(% 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.
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101	101	)))
102	102
103	103
104		-
105	105	=== 2.2.1 Decode Method ===
106	106
107	107
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170	170	* User can use other language ,not limited to Lua, just make sure the return is what you want to send.
171	171
172	172
173		-
174	174	== 2.2 Downstream ==
175	175
176	176
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203	203	* **rxwindow:** transmit on Rx1Window or Rx2Window.
204	204
205	205
	195	+
206	206	(% style="color:blue" %)**Completely exmaple:**
207	207
208	208	* **Old version:** echo 018193F4,imme,hex,0101 > /var/iot/push/test
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209	209	* **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
210	210
211	211
	202	+
212	212	(% style="color:#037691" %)**Downstream Frequency**
213	213
214	214	The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
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223	223	* RU864: 869.1Mhz, SF12 BW125
224	224
225	225
	217	+
226	226	(% style="color:#037691" %)**Examples:**
227	227
228	228	(% class="box" %)
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271	271	)))
272	272
273	273
274		-
275	275	= 3. Example 1: Communicate with LT-22222-L =
276	276
277	277
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335	335
336	336	**4. Run the script.**
337	337
338		-[[image:image-20220722115213-2.png]]
	329	+[[image:image-20220527162552-5.png]]
339	339
340	340	Run the script
341	341
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342	342
343	343	**5. Output:**
344	344
345		-[[image:image-20220722115133-1.png]]
	336	+[[image:image-20220527162619-6.png]]
346	346
347	347	Output from LPS8
348	348
349	349
350		-
351	351	= 4. Example 2: Communicate to TCP Server =
352	352
353	353

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