Last modified by Xiaoling on 2023/07/18 10:12

From version 170.27
edited by Xiaoling
on 2022/06/22 11:17
Change comment: There is no comment for this version
To version 170.23
edited by Xiaoling
on 2022/06/22 11:09
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -18,30 +18,17 @@
18 18  
19 19  == 1.1 What is LHT65N Temperature & Humidity Sensor ==
20 20  
21 -
22 -(((
23 23  The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% style="color:#4f81bd" %)**Temperature Sensor.**
24 -)))
25 25  
26 -(((
27 27  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.
28 -)))
29 29  
30 -(((
31 31  LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
32 -)))
33 33  
34 -(((
35 35  LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
36 -)))
37 37  
38 -(((
39 39  LHT65N supports (% 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.
40 -)))
41 41  
42 -(((
43 43  *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
44 -)))
45 45  
46 46  
47 47  == 1.2 Features ==
... ... @@ -58,7 +58,6 @@
58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 -
62 62  == 1.3 Specification ==
63 63  
64 64  
... ... @@ -83,37 +83,23 @@
83 83  * ±2°C accuracy from -55°C to +125°C
84 84  * Operating Range: -55 °C ~~ 125 °C
85 85  
86 -
87 -
88 88  = 2. Connect LHT65N to IoT Server =
89 89  
90 90  == 2.1 How does LHT65N work? ==
91 91  
92 -(((
93 93  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.
94 -)))
95 95  
96 -(((
97 97  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.
98 -)))
99 99  
100 100  
101 101  == 2.2 How to Activate LHT65N? ==
102 102  
103 -(((
104 104  The LHT65N has two working modes:
105 -)))
106 106  
107 -* (((
108 -(% 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.
109 -)))
110 -* (((
111 -(% 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. 
112 -)))
85 +* (% 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.
86 +* (% 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. 
113 113  
114 -(((
115 115  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
116 -)))
117 117  
118 118  
119 119  [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
... ... @@ -266,6 +266,9 @@
266 266  * The 7th byte (EXT #): defines the external sensor model.
267 267  * 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.)
268 268  
241 +
242 +
243 +
269 269  === 2.4.1 Decoder in TTN V3 ===
270 270  
271 271  When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading.
... ... @@ -296,6 +296,8 @@
296 296  * BAT status=(0Xcba4>>14)&0xFF=11(B),very good
297 297  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
298 298  
274 +
275 +
299 299  === 2.4.3 Built-in Temperature ===
300 300  
301 301  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -306,6 +306,7 @@
306 306  
307 307  * Temperature:  (0xF5C6-65536)/100=-26.18℃
308 308  
286 +
309 309  === 2.4.4 Built-in Humidity ===
310 310  
311 311  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
... ... @@ -312,6 +312,7 @@
312 312  
313 313  * Humidity:    0x025C/10=60.4%
314 314  
293 +
315 315  === 2.4.5 Ext # ===
316 316  
317 317  Bytes for External Sensor:
... ... @@ -464,6 +464,8 @@
464 464  * 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.
465 465  * 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)
466 466  
446 +
447 +
467 467  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
468 468  
469 469  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
... ... @@ -538,6 +538,9 @@
538 538  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
539 539  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.
540 540  
522 +
523 +
524 +
541 541  === 2.6.2 Unix TimeStamp ===
542 542  
543 543  
... ... @@ -925,6 +925,9 @@
925 925  * RED LED when external sensor is not connected
926 926  * For each success downlink, the PURPLE LED will blink once
927 927  
912 +
913 +
914 +
928 928  == 2.9 installation ==
929 929  
930 930  (% _mstvisible="1" %)
... ... @@ -959,6 +959,9 @@
959 959  * Operating Range: -40 ~~ 125 °C
960 960  * Working voltage 2.35v ~~ 5v
961 961  
949 +
950 +
951 +
962 962  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
963 963  
964 964  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
... ... @@ -1002,6 +1002,7 @@
1002 1002  
1003 1003  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1004 1004  
995 +
1005 1005  == 4.2 Set External Sensor Mode ==
1006 1006  
1007 1007  Feature: Change External Sensor Mode.
... ... @@ -1023,6 +1023,8 @@
1023 1023  
1024 1024  * 0xA20702003c: Same as AT+SETCNT=60
1025 1025  
1017 +
1018 +
1026 1026  == 4.3 Enable/Disable uplink Temperature probe ID ==
1027 1027  
1028 1028  (((
... ... @@ -1050,6 +1050,8 @@
1050 1050  * **0xA800**  **~-~->** AT+PID=0
1051 1051  * **0xA801**     **~-~->** AT+PID=1
1052 1052  
1046 +
1047 +
1053 1053  == 4.4 Set Password ==
1054 1054  
1055 1055  Feature: Set device password, max 9 digits
... ... @@ -1096,6 +1096,9 @@
1096 1096  
1097 1097  * There is no downlink command to set to Sleep mode.
1098 1098  
1094 +
1095 +
1096 +
1099 1099  == 4.7 Set system time ==
1100 1100  
1101 1101  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
... ... @@ -1192,6 +1192,9 @@
1192 1192  
1193 1193  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1194 1194  
1193 +
1194 +
1195 +
1195 1195  == 4.13 Auto Send None-ACK messages ==
1196 1196  
1197 1197  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
... ... @@ -1206,10 +1206,13 @@
1206 1206  (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 171px;" %)(% _msthash="1231737" _msttexthash="251862" _mstvisible="6" %)**Command Example**|=(% _mstvisible="4" style="width: 219px;" %)(% _msthash="1231738" _msttexthash="116025" _mstvisible="6" %)**Function**|=(% _mstvisible="4" style="width: 119px;" %)(% _msthash="1231739" _msttexthash="116831" _mstvisible="6" %)**Response**
1207 1207  (% _mstvisible="3" %)|(% _msthash="1231321" _msttexthash="130455" _mstvisible="4" style="width:171px" %)AT+PNACKMD=1|(% _msthash="1231322" _msttexthash="377026" _mstvisible="4" style="width:219px" %)Poll None-ACK message|(% _msthash="1231323" _msttexthash="14989" _mstvisible="4" style="width:119px" %)OK
1208 1208  
1210 +
1209 1209  (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1210 1210  
1211 1211  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1212 1212  
1215 +
1216 +
1213 1213  = 5. Battery & How to replace =
1214 1214  
1215 1215  == 5.1 Battery Type ==
... ... @@ -1615,6 +1615,9 @@
1615 1615  
1616 1616  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1617 1617  
1622 +
1623 +
1624 +
1618 1618  = 8. Packing Info =
1619 1619  
1620 1620  
... ... @@ -1623,15 +1623,19 @@
1623 1623  * LHT65N Temperature & Humidity Sensor x 1
1624 1624  * Optional external sensor
1625 1625  
1633 +
1626 1626  **Dimension and weight**:
1627 1627  
1628 1628  * Device Size:  10 x 10 x 3.5 cm
1629 1629  * Device Weight: 120.5g
1630 1630  
1639 +
1640 +
1631 1631  = 9. Reference material =
1632 1632  
1633 1633  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1634 1634  
1645 +
1635 1635  = 10. FCC Warning =
1636 1636  
1637 1637  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: