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51	51	== 1.2  Specifications ==
52	52
53	53	(((
54		-
55		-
56	56	**Hardware System:**
57	57	)))
58	58
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75	75	)))
76	76	)))
77	77
78		-
79	79	(((
80	80	**Interface for Model: LT22222-L:**
81	81	)))
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99	99	Power Input 7~~ 24V DC.
100	100	)))
101	101
102		-
103	103	(((
104	104	**LoRa Spec:**
105	105	)))
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164	164
165	165	)))
166	166
167		-
168		-
169	169	== 1.3 Features ==
170	170
171	171	* LoRaWAN Class A & Class C protocol
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176	176	* Firmware upgradable via program port
177	177	* Counting
178	178
179		-
180		-
181	181	== 1.4  Applications ==
182	182
183	183	* Smart Buildings & Home Automation
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187	187	* Smart Cities
188	188	* Smart Factory
189	189
190		-
191		-
192	192	== 1.5 Hardware Variants ==
193	193
194	194	(% border="1" style="background-color:#f7faff; width:500px" %)
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202	202	* 1 x Counting Port
203	203	)))
204	204
205		-
206		-
207	207	= 2. Power ON Device =
208	208
209	209	The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
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215	215	[[image:1653297104069-180.png]]
216	216
217	217
218		-
219	219	= 3. Operation Mode =
220	220
221	221	== 3.1 How it works? ==
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230	230
231	231	)))
232	232
233		-
234		-
235	235	== 3.2 Example to join LoRaWAN network ==
236	236
237	237	(((
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273	273	[[image:1653298044601-602.png||height="405" width="709"]]
274	274
275	275
276		-
277	277	== 3.3 Uplink Payload ==
278	278
279	279	There are five working modes + one interrupt mode on LT for different type application:
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285	285	* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
286	286	* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
287	287
288		-
289		-
290	290	=== 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
291	291
292	292	The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
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322	322	* [1] RO1 relay channel is close and the RO1 LED is ON.
323	323	* [0] RO2 relay channel is open and RO2 LED is OFF;
324	324
325		-
326	326	**LT22222-L:**
327	327
328	328	* [1] DI2 channel is high input and DI2 LED is ON;
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338	338	** DO1 is high in case there is load between DO1 and V+.
339	339	** DO1 LED is off in both case
340	340
341		-
342		-
343	343	=== 3.3.2 AT+MOD~=2, (Double DI Counting) ===
344	344
345	345	**For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
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433	433	)))
434	434
435	435
436		-
437	437	=== 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
438	438
439	439	**LT22222-L**: This mode the DI1 is used as a counting pin.
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478	478
479	479	)))
480	480
481		-
482		-
483	483	=== 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
484	484
485	485	**LT22222-L**: This mode the DI1 is used as a counting pin.
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561	561	)))
562	562
563	563
564		-
565	565	=== 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
566	566
567	567	**LT22222-L**: This mode the DI1 is used as a counting pin.