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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	26	= 2. How it works =
27	27
28	28
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51	51	Input the ABP keys in LG308
52	52
53	53
54		-
55	55	== 2.1 Upstream ==
56	56
57	57
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80	80	* **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
81	81	* **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
82	82
83		-
84		-
85	85	(% class="box" %)
86	86	(((
87	87	(% 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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92	92	000001c
93	93	)))
94	94
95		-
96	96	(% class="box" %)
97	97	(((
98	98	(% 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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99	99	)))
100	100
101	101
102		-
103	103	=== 2.2.1 Decode Method ===
104	104
105	105
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168	168	* User can use other language ,not limited to Lua, just make sure the return is what you want to send.
169	169
170	170
171		-
172		-
173	173	== 2.2 Downstream ==
174	174
175	175
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201	201	* **Frequency:** Transmit Frequency: example: 923300000
202	202	* **rxwindow:** transmit on Rx1Window or Rx2Window.
203	203
	194	+
	195	+
204	204	(% style="color:blue" %)**Completely exmaple:**
205	205
206	206	* **Old version:** echo 018193F4,imme,hex,0101 > /var/iot/push/test
207	207	* **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
208	208
	201	+
	202	+
209	209	(% style="color:#037691" %)**Downstream Frequency**
210	210
211	211	The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
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219	219	* IN865: 866.55Mhz, SF10 BW125
220	220	* RU864: 869.1Mhz, SF12 BW125
221	221
	216	+
	217	+
222	222	(% style="color:#037691" %)**Examples:**
223	223
224	224	(% class="box" %)
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267	267	)))
268	268
269	269
270		-
271	271	= 3. Example 1: Communicate with LT-22222-L =
272	272
273	273
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331	331
332	332	**4. Run the script.**
333	333
334		-[[image:image-20220722115213-2.png]]
	329	+[[image:image-20220527162552-5.png]]
335	335
336	336	Run the script
337	337
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338	338
339	339	**5. Output:**
340	340
341		-[[image:image-20220722115133-1.png]]
	336	+[[image:image-20220527162619-6.png]]
342	342
343	343	Output from LPS8
344	344
345	345
346		-
347	347	= 4. Example 2: Communicate to TCP Server =
348	348
349	349

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