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Author

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1		-XWiki.Edwin
	1	+XWiki.Xiaoling

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64	64	)))
65	65
66	66	* (((
67		-STM32L072xxxx MCU
	67	+STM32L072CZT6 MCU
68	68	)))
69	69	* (((
70	70	SX1276/78 Wireless Chip
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186	186	* Firmware upgradable via program port
187	187	* Counting
188	188
	189	+
	190	+
	191	+
189	189	== 1.4  Applications ==
190	190
191	191
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196	196	* Smart Cities
197	197	* Smart Factory
198	198
	202	+
	203	+
	204	+
199	199	== 1.5 Hardware Variants ==
200	200
201	201
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210	210	* 1 x Counting Port
211	211	)))
212	212
	219	+
	220	+
213	213	= 2. Power ON Device =
214	214
215	215
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768	768
769	769	* (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
770	770
	779	+
	780	+
	781	+
771	771	=== 3.4.1 Common Commands ===
772	772
773	773
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1070	1070
1071	1071	Latching time. Unit: ms
1072	1072
1073		-Note:
1074		-
1075		- Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1076		-
1077		- Before Firmwre v1.6.0 the latch time only suport 2 bytes.
1078		-
1079		-
1080	1080	(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1081	1081
1082	1082
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1161	1161
1162	1162	(% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1163	1163
1164		-Note:
1165		-
1166		- Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1167		-
1168		- Before Firmwre v1.6.0 the latch time only suport 2 bytes.
1169		-
1170		-
1171	1171	(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1172	1172
1173	1173
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1259	1259
1260	1260
1261	1261
1262		-==== 3.4.2.20 Reset save RO DO state ====
	1259	+==== 3.4.2.20 Reset save DR DO state ====
1263	1263
1264	1264
1265	1265	* (% style="color:#037691" %)**AT Command:**
1266	1266
1267		-(% style="color:blue" %)**AT+RODORESET=1    **(%%)~/~/ RODO will close when the device joining the network. (default)
	1264	+(% style="color:blue" %)**AT+RODORET=1    **(%%)~/~/ RODO will close when the device joining the network. (default)
1268	1268
1269		-(% style="color:blue" %)**AT+RODORESET=0    **(%%)~/~/ After the device is reset, the previously saved RODO state (only MOD2 to MOD5) is read, and its state is not changed when it is reconnected to the network.
	1266	+(% style="color:blue" %)**AT+RODORET=0    **(%%)~/~/ After the device is reset, the previously saved RODO state (only MOD2 to MOD5) is read, and its state is not changed when it is reconnected to the network.
1270	1270
1271	1271
1272	1272	* (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
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1552	1552	=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1553	1553
1554	1554
1555		-**NPN output**: GND or Float. Max voltage can apply to output pin is 36v.
	1552	+NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1556	1556
1557		-Note: DO pins go to float when device is power off.
1558		-
1559	1559	[[image:1653357531600-905.png]]
1560	1560
1561	1561
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1596	1596
1597	1597
1598	1598	(((
1599		-The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device's Power Line to in serial of RO1_1 and RO_2. Such as below:
1600		-
1601		-**Note**: RO pins go to Open(NO) when device is power off.
	1594	+The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
1602	1602	)))
1603	1603
1604	1604	[[image:image-20220524100215-9.png]]
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2112	2112	== 5.5 Can i use point to point communication for LT-22222-L? ==
2113	2113
2114	2114
2115		-Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]  ，this is [[firmware>>https://github.com/dragino/LT-22222-L/releases]].
	2108	+Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]  ，this is [[firmware>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AADKXQ2v5ZT-S3sxdmbvE7UAa/LT-22222-L/image?dl=0&subfolder_nav_tracking=1]].
2116	2116
2117	2117
2118	2118
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2141	2141	[[image:image-20221006170630-1.png||height="610" width="945"]]
2142	2142
2143	2143
2144		-== 5.8 Can LT22222-L save RO state? ==
2145	2145
2146		-
2147		-Firmware version needs to be no less than 1.6.0.
2148		-
2149		-
2150		-
2151	2151	= 6. Trouble Shooting =
2152	2152
2153	2153
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2210	2210	* (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2211	2211	* (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2212	2212
	2200	+
	2201	+
	2202	+
2213	2213	= 8. Packing Info =
2214	2214
2215	2215
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2227	2227	* Package Size / pcs : 14.5 x 8 x 5 cm
2228	2228	* Weight / pcs : 170g
2229	2229
	2220	+
	2221	+
	2222	+
2230	2230	= 9. Support =
2231	2231
2232	2232
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2237	2237	Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2238	2238
2239	2239
	2233	+
2240	2240
2241	2241	)))
2242	2242

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