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Author

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1		-XWiki.Bei
	1	+XWiki.Xiaoling

Content

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64	64	)))
65	65
66	66	* (((
67		-STM32L072CZT6 MCU
	67	+STM32L072xxxx MCU
68	68	)))
69	69	* (((
70	70	SX1276/78 Wireless Chip
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187	187	* Counting
188	188
189	189
	190	+
190	190	== 1.4  Applications ==
191	191
192	192
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198	198	* Smart Factory
199	199
200	200
	202	+
201	201	== 1.5 Hardware Variants ==
202	202
203	203
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213	213	)))
214	214
215	215
	218	+
216	216	= 2. Power ON Device =
217	217
218	218
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776	776	* (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
777	777
778	778
	782	+
779	779	=== 3.4.1 Common Commands ===
780	780
781	781
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1546	1546	=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1547	1547
1548	1548
1549		-NPN output: GND or Float. Max voltage can apply to output pin is 36v.
	1553	+**NPN output**: GND or Float. Max voltage can apply to output pin is 36v.
1550	1550
	1555	+Note: DO pins go to float when device is power off.
	1556	+
1551	1551	[[image:1653357531600-905.png]]
1552	1552
1553	1553
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1588	1588
1589	1589
1590	1590	(((
1591		-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:
	1597	+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:
	1598	+
	1599	+**Note**: RO pins go to Open(NO) when device is power off.
1592	1592	)))
1593	1593
1594	1594	[[image:image-20220524100215-9.png]]
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2131	2131	[[image:image-20221006170630-1.png||height="610" width="945"]]
2132	2132
2133	2133
2134		-== 5.8 Can LT22222 save RO state? ==
	2142	+== 5.8 Can LT22222-L save RO state? ==
2135	2135
	2144	+
2136	2136	Firmware version needs to be no less than 1.6.0.
2137	2137
2138	2138
	2148	+
2139	2139	= 6. Trouble Shooting =
2140	2140
2141	2141
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2199	2199	* (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2200	2200
2201	2201
	2212	+
2202	2202	= 8. Packing Info =
2203	2203
2204	2204
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2217	2217	* Weight / pcs : 170g
2218	2218
2219	2219
	2231	+
2220	2220	= 9. Support =
2221	2221
2222	2222
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2227	2227	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]]
2228	2228
2229	2229
2230		-
2231	2231
2232	2232	)))
2233	2233

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