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1		-(% style="text-align:center" %)
2		-[[image:image-20220613162008-1.png||height="579" width="379"]]
	1	+(% _mstvisible="2" style="text-align:center" %)
	2	+[[image:image-20220523115324-1.jpeg||_mstalt="469677" _mstvisible="4" height="317" width="317"]]
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	5	+(% _mstvisible="1" %)
	6	+(% _msthash="315237" _msttexthash="1697033" _mstvisible="3" %)**LHT65N LoRaWAN Temperature & Humidity Sensor Manual**
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8	8	(% _mstvisible="1" %)
9	9	(% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
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74	74	* Tri-color LED to indicate working status
75	75	* Datalog feature
76	76
77		-
78	78	(% _mstvisible="1" %)
79	79	== (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) ==
80	80
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273	273	[[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
274	274
275	275
276		-
277	277	(% _mstvisible="1" %)
278	278	=== (% _msthash="3537456" _msttexthash="3448549" _mstvisible="3" %)2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds.(%%) ===
279	279
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284	284	[[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
285	285
286	286
287		-
288	288	(% _mstvisible="1" %)
289	289	== (% _msthash="320879" _msttexthash="294970" _mstvisible="3" %)2.4 Uplink Payload(%%) ==
290	290
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363	363	* The 7th byte (EXT #): defines the external sensor model.
364	364	* The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
365	365
366		-
367	367	(% _mstvisible="1" %)
368	368	=== (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
369	369
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400	400	* BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
401	401	* Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
402	402
403		-
404	404	(% _mstvisible="1" %)
405	405	=== (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
406	406
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416	416	(% _mstvisible="1" %)
417	417	* Temperature:  (0xF5C6-65536)/100=-26.18℃
418	418
419		-
420	420	(% _mstvisible="1" %)
421	421	=== (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
422	422
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426	426	(% _mstvisible="1" %)
427	427	* Humidity:    0x025C/10=60.4%
428	428
429		-
430	430	(% _mstvisible="1" %)
431	431	=== (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
432	432
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594	594	* Sync time OK: 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
595	595	* Unix Time Request:1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
596	596
597		-
598		-
599		-
600	600	(% _mstvisible="1" %)
601	601	== (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
602	602
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659	659	1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
660	660	1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover.
661	661
662		-
663		-
664		-
665		-
666	666	(% _mstvisible="1" %)
667	667	=== (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
668	668
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1138	1138	(((
1139	1139	(% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
1140	1140	For each success downlink, the PURPLE LED will blink once
1141		-
1142		-
1143		-
1144		-
1145		-(% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
1146		-
1147	1147	)))
1148	1148
	1132	+
1149	1149	(% _mstvisible="1" style="text-align: left;" %)
1150	1150	== (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
1151	1151
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1174	1174	* -55°C to 125°C
1175	1175	* Working voltage 2.35v ~~ 5v
1176	1176
1177		-
1178		-
1179		-
1180		-
1181	1181	(% _mstvisible="1" style="text-align: left;" %)
1182	1182	= (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1183	1183
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1384	1384	(% _mstvisible="1" %)
1385	1385	[[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1386	1386
1387		-
1388	1388	(% _mstvisible="1" style="text-align: left;" %)
1389	1389	(% style="color:#4f81bd" %)**Downlink Command:**
1390	1390
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1595	1595	(% _mstvisible="1" %)
1596	1596	* Example: 0xA301 ~/~/Same as AT+CLRDTA
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	1577	+
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1598	1598	(% _mstvisible="1" %)
1599	1599	== (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1600	1600
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1978	1978	* [[Datasheet, Photos, Decoder, Firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor]]
1979	1979
1980	1980
1981		-
1982	1982	= 10. FCC Warning =
1983	1983
1984	1984	(% _mstvisible="1" %)

image-20220613162008-1.png

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1		-XWiki.Xiaoling

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1		-182.8 KB

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