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Last modified by Xiaoling on 2023/07/18 10:12
From version 170.28
edited by Xiaoling
on 2022/06/22 11:17
Change comment: There is no comment for this version
To version 170.26
edited by Xiaoling
on 2022/06/22 11:16
Change comment: There is no comment for this version

Summary

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86 86  
87 87  
88 88  
89 +
89 89  = 2. Connect LHT65N to IoT Server =
90 90  
91 91  == 2.1 How does LHT65N work? ==
92 92  
93 -(((
94 94  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.
95 -)))
96 96  
97 -(((
98 98  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.
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100 100  
101 101  
102 102  == 2.2 How to Activate LHT65N? ==
103 103  
104 -(((
105 105  The LHT65N has two working modes:
106 -)))
107 107  
108 -* (((
109 -(% 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.
110 -)))
111 -* (((
112 -(% 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 -)))
103 +* (% 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.
104 +* (% 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. 
114 114  
115 -(((
116 116  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
117 -)))
118 118  
119 119  
120 120  [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
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267 267  * The 7th byte (EXT #): defines the external sensor model.
268 268  * 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.)
269 269  
259 +
270 270  === 2.4.1 Decoder in TTN V3 ===
271 271  
272 272  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.
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539 539  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
540 540  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.
541 541  
532 +
542 542  === 2.6.2 Unix TimeStamp ===
543 543  
544 544  
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926 926  * RED LED when external sensor is not connected
927 927  * For each success downlink, the PURPLE LED will blink once
928 928  
920 +
929 929  == 2.9 installation ==
930 930  
931 931  (% _mstvisible="1" %)
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960 960  * Operating Range: -40 ~~ 125 °C
961 961  * Working voltage 2.35v ~~ 5v
962 962  
955 +
963 963  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
964 964  
965 965  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
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1097 1097  
1098 1098  * There is no downlink command to set to Sleep mode.
1099 1099  
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1100 1100  == 4.7 Set system time ==
1101 1101  
1102 1102  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
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1193 1193  
1194 1194  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1195 1195  
1190 +
1196 1196  == 4.13 Auto Send None-ACK messages ==
1197 1197  
1198 1198  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
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1616 1616  
1617 1617  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1618 1618  
1614 +
1619 1619  = 8. Packing Info =
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1621 1621