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76	76	)))
77	77
78	78	(((
	79	+
	80	+
79	79	**Interface for Model: LT22222-L:**
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81	81
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99	99	)))
100	100
101	101	(((
	104	+
	105	+
102	102	**LoRa Spec:**
103	103	)))
104	104
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162	162
163	163	)))
164	164
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	170	+
165	165	== 1.3 Features ==
166	166
167	167	* LoRaWAN Class A & Class C protocol
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172	172	* Firmware upgradable via program port
173	173	* Counting
174	174
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	182	+
175	175	== 1.4  Applications ==
176	176
177	177	* Smart Buildings & Home Automation
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181	181	* Smart Cities
182	182	* Smart Factory
183	183
	192	+
	193	+
184	184	== 1.5 Hardware Variants ==
185	185
186	186	(% border="1" style="background-color:#f7faff; width:500px" %)
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194	194	* 1 x Counting Port
195	195	)))
196	196
	207	+
197	197	= 2. Power ON Device =
198	198
199	199	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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216	216
217	217	(((
218	218	In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
219		-
220		-
221	221	)))
222	222
223	223
224		-
225	225	== 3.2 Example to join LoRaWAN network ==
226	226
227	227	(((
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230	230
231	231	[[image:image-20220523172350-1.png||height="266" width="864"]]
232	232
	241	+
233	233	(((
234	234	The LG308 is already set to connect to [[TTN network >>url:https://www.thethingsnetwork.org/]]. So what we need to do now is only configure register this device to TTN:
235	235	)))
236	236
237	237	(((
238		-**Step 1**: Create a device in TTN with the OTAA keys from LT IO controller.
	247	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LT IO controller.
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240	240
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244	244
245	245	[[image:1653297924498-393.png]]
246	246
	256	+
247	247	Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
248	248
249	249	Add APP EUI in the application.
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257	257
258	258
259	259	(((
260		-**Step 2**: Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
	270	+(% style="color:blue" %)**Step 2**(%%): Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
261	261	)))
262	262
263	263	[[image:1653298044601-602.png||height="405" width="709"]]
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640	640	AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
641	641
642	642
	653	+
643	643	(% style="color:#4f81bd" %)**Trigger base on current**:
644	644
645	645	Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
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649	649	AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
650	650
651	651
	663	+
652	652	(% style="color:#4f81bd" %)**Trigger base on DI status**:
653	653
654	654	DI status trigger Flag.
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704	704
705	705	* Each bits shows if the corresponding trigger has been configured.
706	706
707		-
708		-
709	709	**Example:**
710	710
711	711	10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
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717	717
718	718	* Each bits shows which status has been trigger on this uplink.
719	719
720		-
721		-
722	722	**Example:**
723	723
724	724	10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
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730	730
731	731	* Each bits shows which status has been trigger on this uplink.
732	732
733		-
734		-
735	735	**Example:**
736	736
737	737	00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
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773	773
774	774	* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
775	775
776		-
777		-
778	778	=== 3.4.1 Common Commands ===
779	779
780	780	They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]