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176	176
177	177
178	178	* LoRaWAN Class A & Class C protocol
	179	+
179	179	* Optional Customized LoRa Protocol
	181	+
180	180	* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
	183	+
181	181	* AT Commands to change parameters
	185	+
182	182	* Remote configure parameters via LoRa Downlink
	187	+
183	183	* Firmware upgradable via program port
	189	+
184	184	* Counting
185	185
186	186	== 1.4  Applications ==
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187	187
188	188
189	189	* Smart Buildings & Home Automation
	196	+
190	190	* Logistics and Supply Chain Management
	198	+
191	191	* Smart Metering
	200	+
192	192	* Smart Agriculture
	202	+
193	193	* Smart Cities
	204	+
194	194	* Smart Factory
195	195
196	196	== 1.5 Hardware Variants ==
197	197
198	198
199		-(% border="1" style="background-color:#f7faff; width:500px" %)
200		-|(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
201		-|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
	210	+(% border="1" style="background-color:#f2f2f2; width:500px" %)
	211	+|(% style="background-color:#d9e2f3; color:#0070c0; width:103px" %)**Model**|(% style="background-color:#d9e2f3; color:#0070c0; width:131px" %)**Photo**|(% style="background-color:#d9e2f3; color:#0070c0; width:334px" %)**Description**
	212	+|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
	213	+(% style="text-align:center" %)
	214	+[[image:image-20230424115112-1.png||height="106" width="58"]]
	215	+)))|(% style="width:334px" %)(((
202	202	* 2 x Digital Input (Bi-direction)
203	203	* 2 x Digital Output
204	204	* 2 x Relay Output (5A@250VAC / 30VDC)
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762	762
763	763	=== 3.4.2 Sensor related commands ===
764	764
	779	+
765	765	==== 3.4.2.1 Set Transmit Interval ====
766	766
767	767
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1523	1523	=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1524	1524
1525	1525
1526		-**NPN output**: GND or Float. Max voltage can apply to output pin is 36v.
	1541	+(% style="color:blue" %)**NPN output**(%%): GND or Float. Max voltage can apply to output pin is 36v.
1527	1527
1528		-Note: DO pins go to float when device is power off.
	1543	+(% style="color:red" %)**Note: DO pins go to float when device is power off.**
1529	1529
1530	1530	[[image:1653357531600-905.png]]
1531	1531
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1547	1547
1548	1548	(% style="color:blue" %)**Specifications of the wind speed sensor:**
1549	1549
1550		-**Red:  12~~24v**
	1565	+(% style="color:red" %)**Red:  12~~24v**
1551	1551
1552		-**Yellow:  4~~20mA**
	1567	+(% style="color:#ffc000" %)**Yellow:  4~~20mA**
1553	1553
1554	1554	**Black:  GND**
1555	1555
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1912	1912	**3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?
1913	1913	dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1914	1914
1915		-**4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5**
	1930	+**4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5.**
1916	1916
1917	1917
1918	1918	)))
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1976	1976
1977	1977	[[image:image-20220524103407-12.png]]
1978	1978
	1994	+
1979	1979	[[image:image-20220524103429-13.png]]
1980	1980
	1997	+
1981	1981	[[image:image-20220524104033-15.png]]
1982	1982
1983	1983

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