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Last modified by Mengting Qiu on 2025/07/03 14:48
From version 172.3
edited by Xiaoling
on 2022/06/21 09:46
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To version 148.20
edited by Xiaoling
on 2022/06/17 15:07
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Title
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1 -LHT52 - LoRaWAN Temperature & Humidity Sensor User Manual
1 +LHT65N LoRaWAN Temperature & Humidity Sensor Manual
Parent
... ... @@ -1,1 +1,1 @@
1 -Main.User Manual for LoRaWAN End Nodes.WebHome
1 +Main.WebHome
Content
... ... @@ -1,23 +1,23 @@
1 1  (% style="text-align:center" %)
2 -[[image:1655774244188-589.png]]
2 +[[image:image-20220613162008-1.png||_mstalt="428142" height="579" width="379"]]
3 3  
4 4  
5 5  
6 6  
7 +
7 7  (% _mstvisible="1" %)
8 8  (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
9 9  
11 +{{toc/}}
10 10  
11 11  
12 12  
13 13  
14 -
15 -
16 16  (% _mstvisible="1" %)
17 -= (% _msthash="277498" _msttexthash="253045" _mstvisible="3" %)1.  Introduction(%%) =
17 += (% _msthash="277498" _msttexthash="253045" _mstvisible="3" %)1. Introduction(%%) =
18 18  
19 19  (% _mstvisible="1" %)
20 -== (% _msthash="1532895" _msttexthash="1426958" _mstvisible="3" %)1.1  What is LHT52 Temperature & Humidity Sensor(%%) ==
20 +== (% _msthash="1532895" _msttexthash="1426958" _mstvisible="3" %)1.1 What is LHT65N Temperature & Humidity Sensor(%%) ==
21 21  
22 22  (% _mstvisible="1" %)
23 23  (((
... ... @@ -24,50 +24,64 @@
24 24  (% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
25 25  
26 26  
27 -The Dragino LHT52 Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:blue" %)**built-in Temperature & Humidity sensor** (%%)and has a USB Type-C sensor connector to connect to external sensors such as external Temperature Sensor.
27 +(% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
28 +The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% _mstvisible="4" style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% _mstvisible="4" style="color:#4f81bd" %)**Temperature Sensor**(% _mstvisible="3" %)**.**
29 +)))
28 28  
29 -LHT52 (% style="color:blue" %)**senses environment temperature and humidity**(%%) and send these values via long-range wireless LoRaWAN protocol. It targets professional wireless sensor network applications such as food service, smart metering, smart cities, building automation, and so on.
31 +(% _mstvisible="1" %)
32 +(((
33 +(% _msthash="506052" _msttexthash="66005810" _mstvisible="2" %)
34 +The LHT65N allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
35 +)))
30 30  
31 -LHT52 supports(% style="color:blue" %)** 2 x AAA batteries **(%%)and works for a long time up to several years. Use can replace the batteries easily after they are finished.
37 +(% _mstvisible="1" %)
38 +(((
39 +(% _msthash="506053" _msttexthash="4298047" _mstvisible="2" %)
40 +LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
41 +)))
32 32  
33 -LHT52 is fully compatible with LoRaWAN v1.0.3 protocol, it can work with standard LoRaWAN gateway.
43 +(% _mstvisible="1" %)
44 +(((
45 +(% _msthash="506054" _msttexthash="6016374" _mstvisible="2" %)
46 +LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
47 +)))
34 34  
35 -LHT52 supports(% style="color:blue" %)** Datalog feature** (%%)to make sure users won’t miss sensor data. It records sensor value for every uplink. These values can be retrieved by LoRaWAN server via downlink command.
36 -
37 -LHT52 supports(% style="color:blue" %)** temperature alarm feature**(%%). It can uplink alarm in a short interval while temperature exceeds preset limits.
38 -
39 -*Battery life depends how often to send data, please see [[battery analyzer>>||anchor="H4.2A0PowerConsumptionAnalyze"]].
40 -
41 -(% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
42 -[[image:1655774519494-861.png]]
49 +(% _mstvisible="1" %)
50 +(((
51 +(% _msthash="506055" _msttexthash="17023136" _mstvisible="2" %)
52 +LHT65N supports (% _mstvisible="4" style="color:#4f81bd" %)**Datalog Feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
43 43  )))
44 44  
45 45  (% _mstvisible="1" %)
46 46  (((
47 47  (% _msthash="506056" _msttexthash="5557097" _mstvisible="2" %)
58 +*The actual battery life depends on how often to send data, please see the battery analyzer chapter.
59 +
60 +(% _msthash="506056" _msttexthash="5557097" _mstvisible="2" %)
48 48  
49 49  )))
50 50  
51 51  (% _mstvisible="1" %)
52 -== (% _msthash="182559" _msttexthash="163319" _mstvisible="3" %)1.2  Features(%%) ==
65 +== (% _msthash="182559" _msttexthash="163319" _mstvisible="3" %)1.2 Features(%%) ==
53 53  
54 54  (% _mstvisible="1" %)
55 -* Wall Attachable.
56 -* LoRaWAN v1.0.3 Class A protocol.
57 -* Built-in Temperature & Humidity sensor
58 -* Optional External Probe
68 +* Wall mountable
69 +* LoRaWAN v1.0.3 Class A protocol
59 59  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
60 60  * AT Commands to change parameters
61 61  * Remote configure parameters via LoRaWAN Downlink
62 -* Firmware upgradable via program port
63 -* Support 2 x AAA LR03 batteries.
73 +* Firmware upgradeable via program port
74 +* Built-in 2400mAh battery for up to 10 years of use.
75 +* Built-in Temperature & Humidity sensor
76 +* Optional External Sensors
77 +* Tri-color LED to indicate working status
64 64  * Datalog feature
65 -* IP Rating: IP52
66 66  
67 67  
68 68  
82 +
69 69  (% _mstvisible="1" %)
70 -== (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3  Specification(%%) ==
84 +== (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) ==
71 71  
72 72  (% _mstvisible="1" %)
73 73  (((
... ... @@ -78,10 +78,27 @@
78 78  (% _msthash="506057" _msttexthash="671437" _mstvisible="4" %)**Built-in Temperature Sensor:**
79 79  )))
80 80  
81 -* Resolution: 0.01 °C
82 -* Accuracy Tolerance: Typ ±0.3 °C
83 -* Long Term Drift: < 0.02 °C/yr
84 -* Operating Range: -20 ~~ 50 °C
95 +(% _mstvisible="1" %)
96 +* (% _mstvisible="3" %)
97 +(((
98 +(% _msthash="902993" _msttexthash="294424" _mstvisible="4" %)
99 +Resolution: 0.01 °C
100 +)))
101 +* (% _mstvisible="3" %)
102 +(((
103 +(% _msthash="902994" _msttexthash="690664" _mstvisible="4" %)
104 +Accuracy Tolerance : Typ ±0.3 °C
105 +)))
106 +* (% _mstvisible="3" %)
107 +(((
108 +(% _msthash="902995" _msttexthash="504647" _mstvisible="4" %)
109 +Long Term Drift: < 0.02 °C/yr
110 +)))
111 +* (% _mstvisible="3" %)
112 +(((
113 +(% _msthash="902996" _msttexthash="478257" _mstvisible="4" %)
114 +Operating Range: -40 ~~ 85 °C
115 +)))
85 85  
86 86  (% _mstvisible="1" %)
87 87  (((
... ... @@ -90,112 +90,122 @@
90 90  
91 91  (% _mstvisible="2" %)
92 92  (% _msthash="506058" _msttexthash="544453" _mstvisible="4" %)**Built-in Humidity Sensor:**
93 -
94 -
95 -* Resolution: 0.1 %RH
96 -* Accuracy Tolerance: Typ ±3 %RH
97 -* Long Term Drift: < 0.02 °C/yr
98 -* Operating Range: 0 ~~ 99.0 %RH(no Dew)
99 99  )))
100 100  
101 101  (% _mstvisible="1" %)
127 +* (% _mstvisible="3" %)
102 102  (((
103 -(% _mstvisible="2" %)
104 -
129 +(% _msthash="902997" _msttexthash="282438" _mstvisible="4" %)
130 +Resolution: 0.04 %RH
105 105  )))
132 +* (% _mstvisible="3" %)
133 +(((
134 +(% _msthash="902998" _msttexthash="628771" _mstvisible="4" %)
135 +Accuracy Tolerance : Typ ±3 %RH
136 +)))
137 +* (% _mstvisible="3" %)
138 +(((
139 +(% _msthash="902999" _msttexthash="504647" _mstvisible="4" %)
140 +Long Term Drift: < 0.02 °C/yr
141 +)))
142 +* (% _mstvisible="3" %)
143 +(((
144 +(% _msthash="903000" _msttexthash="421291" _mstvisible="4" %)
145 +Operating Range: 0 ~~ 96 %RH
146 +)))
106 106  
107 -(% _mstvisible="3" %)
148 +(% _mstvisible="1" %)
108 108  (((
150 +(% _mstvisible="2" %)
109 109  
110 110  
153 +(% _mstvisible="2" %)
154 +(% _msthash="506059" _msttexthash="680537" _mstvisible="4" %)**External Temperature Sensor:**
155 +)))
111 111  
157 +(% _mstvisible="1" %)
158 +* (% _mstvisible="3" %)
159 +(((
160 +(% _msthash="903001" _msttexthash="332254" _mstvisible="4" %)
161 +Resolution: 0.0625 °C
162 +)))
163 +* (% _mstvisible="3" %)
164 +(((
165 +(% _msthash="903002" _msttexthash="782600" _mstvisible="4" %)
166 +±0.5°C accuracy from -10°C to +85°C
167 +)))
168 +* (% _mstvisible="3" %)
169 +(((
170 +(% _msthash="903003" _msttexthash="729482" _mstvisible="4" %)
171 +±2°C accuracy from -55°C to +125°C
172 +)))
173 +* (% _mstvisible="3" %)
174 +(((
112 112  (% _msthash="903004" _msttexthash="592540" _mstvisible="4" %)
113 -== 1.4  Power Consumption ==
176 +Operating Range: -55 °C ~~ 125 °C
114 114  
115 -LHT52 (without external sensor): Idle: 5uA, Transmit: max 110mA
116 116  
117 -LHT52 + External Temperature Probe (AS-01): Idle: 6uA, Transmit: max 110mA.
118 -
119 -
120 -
121 -== 1.5  Storage & Operation Temperature ==
122 -
123 --20°C to +50°C
124 -
125 -
126 -
127 -== 1.6  Applications ==
128 -
129 -* Smart Buildings & Home Automation
130 -* Logistics and Supply Chain Management
131 -* Smart Metering
132 -* Smart Agriculture
133 -* Smart Cities
134 -* Smart Factory
135 -
179 +(% _msthash="903004" _msttexthash="592540" _mstvisible="4" %)
136 136  
137 137  )))
138 138  
139 139  (% _mstvisible="1" %)
140 -= (% _msthash="655759" _msttexthash="618618" _mstvisible="3" %)2.  O(%%)peration Mode =
184 += (% _msthash="655759" _msttexthash="618618" _mstvisible="3" %)2. Connect LHT65N to IoT Server(%%) =
141 141  
142 142  (% _mstvisible="1" %)
143 -== (% _msthash="462371" _msttexthash="410332" _mstvisible="3" %)2.1 How it work?(%%) ==
187 +== (% _msthash="462371" _msttexthash="410332" _mstvisible="3" %)2.1 How does LHT65N work?(%%) ==
144 144  
145 145  (% _mstvisible="1" %)
146 146  (((
147 147  (% _msthash="506060" _msttexthash="28254538" _mstvisible="2" %)
148 -Each LHT52 is shipped with a worldwide unique set of LoRaWAN OTAA keys. To use LHT52 in a LoRaWAN network, user needs to input the OTAA keys in LoRaWAN network server. After this, if LHT52 is under this LoRaWAN network coverage, LHT52 can join the LoRaWAN network and start to transmit sensor data. The default period for each uplink is** 20 minutes**.
149 -
150 -(% _msthash="506060" _msttexthash="28254538" _mstvisible="2" %)
151 -
192 +LHT65N is configured as LoRaWAN OTAA Class A mode by default. Each LHT65N is shipped with a worldwide unique set of OTAA keys. To use LHT65N in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N.
152 152  )))
153 153  
154 154  (% _mstvisible="1" %)
155 155  (((
156 156  (% _msthash="506061" _msttexthash="48200724" _mstvisible="2" %)
198 +If LHT65N is under the coverage of this LoRaWAN network. LHT65N can join the LoRaWAN network automatically. After successfully joining, LHT65N will start to measure environment temperature and humidity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
199 +
200 +(% _msthash="506061" _msttexthash="48200724" _mstvisible="2" %)
157 157  
158 158  )))
159 159  
160 160  (% _mstvisible="1" %)
161 -== (% _msthash="514384" _msttexthash="458666" _mstvisible="3" %)2.2 How to Activate LHT52?(%%) ==
205 +== (% _msthash="514384" _msttexthash="458666" _mstvisible="3" %)2.2 How to Activate LHT65N?(%%) ==
162 162  
163 -(% style="color:red" %)** 1.  Open enclosure from below position.**
207 +(% _msthash="315239" _msttexthash="748241" _mstvisible="1" %)
208 +The LHT65N has two working modes:
164 164  
165 -[[image:image-20220621093835-1.png]]
210 +(% _mstvisible="1" %)
211 +* (% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
212 +* (% style="color:blue" %)**Working Mode**(%%):  In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65N will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
166 166  
214 +(% _mstvisible="1" %)
215 +(((
216 +(% _msthash="506062" _msttexthash="6036823" _mstvisible="2" %)
217 +The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
218 +)))
167 167  
168 -(% style="color:red" %)** 2.  Insert 2 x AAA LR03 batteries.**
220 +(% _mstvisible="1" %)
221 +[[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
169 169  
170 -[[image:image-20220621093835-2.png]]
223 +(% _mstvisible="1" %)
224 +[[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
171 171  
172 172  
173 -(% style="color:red" %)** 3.  Press the reset button to activate device.**
174 -
175 -[[image:image-20220621093835-3.png]]
176 -
177 -
178 -User can check [[LED Status>>||anchor="H2.8A0LEDIndicator"]] to know the working state of LHT52.
179 -
180 -
181 -
182 182  (% _mstvisible="1" %)
183 183  == (% _msthash="882726" _msttexthash="838526" _mstvisible="3" %)2.3 Example to join LoRaWAN network(%%) ==
184 184  
185 -This section shows an example for how to join the [[TheThingsNetwork>>url:https://www.thethingsnetwork.org/]] LoRaWAN IoT server. Usages with other LoRaWAN IoT servers are of similar procedure.
230 +(% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
231 +This section shows an example of how to join the TTN V3 LoRaWAN IoT server. Use with other LoRaWAN IoT servers is of a similar procedure.
186 186  
187 187  (% _mstvisible="1" class="wikigeneratedid" %)
188 -[[image:1655775912928-657.png]]
234 +[[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
189 189  
190 -Assume the DLOS8 is already set to connect to [[TTN V3 network >>url:https://eu1.cloud.thethings.network/]]. We need to add the LHT52 device in TTN V3 portal.
236 +(% _msthash="315241" _msttexthash="10802155" _mstvisible="1" %)
237 +Assume the LPS8N is already set to connect to [[TTN V3 network>>url:https://eu1.cloud.thethings.network||_mstvisible="2"]], So it provides network coverage for LHT65N. Next we need to add the LHT65N device in TTN V3:
191 191  
192 192  
193 -**Step 1**: Create a device in TTN V3 with the OTAA keys from LHT52.
194 -
195 -Each LHT52 is shipped with a sticker with the default DEV EUI as below:
196 -
197 -
198 -
199 199  (% _mstvisible="1" %)
200 200  === (% _msthash="670592" _msttexthash="634075" _mstvisible="3" %)2.3.1 Step 1: Create Device n TTN(%%) ===
201 201  
... ... @@ -327,6 +327,9 @@
327 327  * The 7th byte (EXT #): defines the external sensor model.
328 328  * 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.)
329 329  
371 +
372 +
373 +
330 330  (% _mstvisible="1" %)
331 331  === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
332 332  
... ... @@ -363,6 +363,9 @@
363 363  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
364 364  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
365 365  
410 +
411 +
412 +
366 366  (% _mstvisible="1" %)
367 367  === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
368 368  
... ... @@ -378,6 +378,9 @@
378 378  (% _mstvisible="1" %)
379 379  * Temperature:  (0xF5C6-65536)/100=-26.18℃
380 380  
428 +
429 +
430 +
381 381  (% _mstvisible="1" %)
382 382  === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
383 383  
... ... @@ -387,6 +387,9 @@
387 387  (% _mstvisible="1" %)
388 388  * Humidity:    0x025C/10=60.4%
389 389  
440 +
441 +
442 +
390 390  (% _mstvisible="1" %)
391 391  === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
392 392  
... ... @@ -433,6 +433,7 @@
433 433  )))
434 434  
435 435  
489 +
436 436  (% _mstvisible="1" %)
437 437  ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
438 438  
... ... @@ -553,18 +553,9 @@
553 553  * 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.
554 554  * 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)
555 555  
556 -==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable)(%%) ====
557 557  
558 -In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
559 559  
560 -be used to power the external ADC sensor; user can control the power on time for this
561 561  
562 -sensor by setting:
563 -
564 -AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
565 -
566 -
567 -
568 568  (% _mstvisible="1" %)
569 569  == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
570 570  
... ... @@ -627,6 +627,9 @@
627 627  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
628 628  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.
629 629  
675 +
676 +
677 +
630 630  (% _mstvisible="1" %)
631 631  === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
632 632  
... ... @@ -1125,17 +1125,6 @@
1125 1125  = (% _msthash="401388" _msttexthash="566956" _mstvisible="3" %)3. S(% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)ensors(% _msthash="401388" _msttexthash="40417" _mstvisible="3" %) and A(% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)ccessories(%%) =
1126 1126  
1127 1127  (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1128 -== (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E2 Extension Cable(%%) ==
1129 -
1130 -[[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1131 -
1132 -1m long breakout cable for LHT65N
1133 -
1134 -[[image:image-20220619092421-3.png||height="371" width="529"]]
1135 -
1136 -
1137 -
1138 -(% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1139 1139  == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E3 Temperature Probe(%%) ==
1140 1140  
1141 1141  (% _mstvisible="1" %)
... ... @@ -1153,6 +1153,9 @@
1153 1153  * -55°C to 125°C
1154 1154  * Working voltage 2.35v ~~ 5v
1155 1155  
1193 +
1194 +
1195 +
1156 1156  (% _mstvisible="1" style="text-align: left;" %)
1157 1157  = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1158 1158  
... ... @@ -1368,6 +1368,9 @@
1368 1368  * 0xA800  **~-~->** AT+PID=0
1369 1369  * 0xA801     **~-~->** AT+PID=1
1370 1370  
1411 +
1412 +
1413 +
1371 1371  (% _mstvisible="1" style="text-align: left;" %)
1372 1372  == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
1373 1373  
... ... @@ -1439,6 +1439,9 @@
1439 1439  (% _mstvisible="1" %)
1440 1440  * There is no downlink command to set to Sleep mode.
1441 1441  
1485 +
1486 +
1487 +
1442 1442  (% _mstvisible="1" %)
1443 1443  == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1444 1444  
... ... @@ -1573,6 +1573,9 @@
1573 1573  (% _mstvisible="1" %)
1574 1574  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1575 1575  
1622 +
1623 +
1624 +
1576 1576  (% _mstvisible="1" %)
1577 1577  == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1578 1578  
... ... @@ -1628,7 +1628,6 @@
1628 1628  (% _mstvisible="1" %)
1629 1629  [[image:image-20220515075440-2.png||_mstalt="429546" _mstvisible="3" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" _mstvisible="3" height="193" width="257"]]
1630 1630  
1631 -
1632 1632  (% _mstvisible="1" %)
1633 1633  == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1634 1634  
... ... @@ -1891,7 +1891,7 @@
1891 1891  (% _msthash="506131" _msttexthash="14585714" %)
1892 1892  AT commands：
1893 1893  
1894 -[[image:image-20220620153708-1.png||height="603" width="723"]]
1942 +[[image:image-20220615092034-1.png||_mstalt="428870"]]
1895 1895  
1896 1896  (% _msthash="506132" _msttexthash="337922" %)
1897 1897  Downlink commands:
... ... @@ -1900,13 +1900,13 @@
1900 1900  (% _msthash="506133" _msttexthash="33046" %)
1901 1901  **TTN:**
1902 1902  
1903 -[[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1951 +[[image:image-20220615092124-2.png||_mstalt="429221" height="843" width="893"]]
1904 1904  
1905 1905  
1906 1906  (% _msthash="506134" _msttexthash="11113791" %)
1907 1907  **Helium：**
1908 1908  
1909 -[[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1957 +[[image:image-20220615092551-3.png||_mstalt="430794" height="556" width="1097"]]
1910 1910  
1911 1911  
1912 1912  (% _msthash="506135" _msttexthash="4159844" %)
... ... @@ -1914,13 +1914,13 @@
1914 1914  
1915 1915  [[image:image-20220615094850-6.png||_mstalt="433082"]]
1916 1916  
1917 -[[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1965 +[[image:image-20220615094904-7.png||_mstalt="433485" height="329" width="1067"]]
1918 1918  
1919 1919  
1920 1920  (% _msthash="506136" _msttexthash="39286" %)
1921 1921  **Aws:**
1922 1922  
1923 -[[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1971 +[[image:image-20220615092939-4.png||_mstalt="434460" height="532" width="1062"]]
1924 1924  
1925 1925  
1926 1926  == (% _msthash="1220570" _msttexthash="33199257" %)6.3 How to change the uplink interval？(%%) ==
... ... @@ -1933,8 +1933,6 @@
1933 1933  
1934 1934  [[image:image-20220615153355-1.png]]
1935 1935  
1936 -[[image:image-20220620154900-5.jpeg||height="427" width="570"]]
1937 -
1938 1938  (% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1939 1939  
1940 1940  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -1941,10 +1941,9 @@
1941 1941  
1942 1942  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1943 1943  
1990 +[[image:image-20220615153914-2.jpeg||height="608" width="456"]]
1944 1944  
1945 -To switch from download mode to command mode, press reset key
1946 1946  
1947 -
1948 1948  (((
1949 1949  (% _msthash="736728" _msttexthash="67213055" %)
1950 1950  (((
... ... @@ -1956,18 +1956,16 @@
1956 1956  (% _msthash="736729" _msttexthash="1907009" %)
1957 1957  Input password and ATZ to activate LHT65N,As shown below:
1958 1958  
1959 -[[image:image-20220615154519-3.png||height="672" width="807"]]
2004 +[[image:image-20220615154519-3.png]]
1960 1960  
1961 1961  
1962 1962  )))
1963 1963  
2009 +
1964 1964  == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1965 1965  
1966 -
1967 1967  [[image:image-20220615153355-1.png]]
1968 1968  
1969 -(% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1970 -
1971 1971  (% style="background-color:yellow" %)**4  < - ->  3.3V  < - ->  Blue**
1972 1972  
1973 1973  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -1974,13 +1974,9 @@
1974 1974  
1975 1975  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1976 1976  
1977 -[[image:image-20220620160241-6.jpeg||height="428" width="571"]]
2020 +Use after connection， ground wire（1 < - -> GND  < - ->  Black） for 1s and then pull it out.Then restart the device.
1978 1978  
1979 -Press reset after connecting the 4boot cable to enter the download mode.
1980 1980  
1981 -[[image:image-20220620160516-7.png||height="435" width="435"]]
1982 -
1983 -
1984 1984  (% _mstmutation="1" %)**Step1**(%%): Install TremoProgrammer  first.
1985 1985  
1986 1986  [[image:image-20220615170542-5.png]]
... ... @@ -1998,7 +1998,7 @@
1998 1998  
1999 1999  (% _istranslated="1" _mstmutation="1" %)**Step4：**(%%)Click Start
2000 2000  
2001 -[[image:image-20220620160723-8.png]]
2040 +
2002 2002  )))
2003 2003  
2004 2004  (% _mstvisible="1" %)
... ... @@ -2070,6 +2070,8 @@
2070 2070  (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2071 2071  (% style="color:red" %)**E3**(%%): External Temperature Probe
2072 2072  
2112 +
2113 +(% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2073 2073  
2074 2074  )))
2075 2075  
... ... @@ -2118,6 +2118,9 @@
2118 2118  (% _mstvisible="3" %)
2119 2119  (((
2120 2120  
2162 +
2163 +(% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
2164 +
2121 2121  )))
2122 2122  
2123 2123  = (% _msthash="184782" _msttexthash="16007771" %)9. Reference material(%%) =
... ... @@ -2124,6 +2124,8 @@
2124 2124  
2125 2125  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor||_msthash="504975" _msttexthash="51420512"]]
2126 2126  
2171 +
2172 +
2127 2127  = (% _msthash="216320" _msttexthash="10002096" %)10. (%%)FCC Warning =
2128 2128  
2129 2129  (% _mstvisible="1" %)
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