Skip to Content
Last modified by Xiaoling on 2023/07/18 10:12
From version 170.29
edited by Xiaoling
on 2022/06/22 11:21
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

Details

Page properties
Content
... ... @@ -59,6 +59,7 @@
59 59  * Datalog feature
60 60  
61 61  
62 +
62 62  == 1.3 Specification ==
63 63  
64 64  
... ... @@ -84,35 +84,25 @@
84 84  * Operating Range: -55 °C ~~ 125 °C
85 85  
86 86  
88 +
89 +
87 87  = 2. Connect LHT65N to IoT Server =
88 88  
89 89  == 2.1 How does LHT65N work? ==
90 90  
91 -(((
92 92  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.
93 -)))
94 94  
95 -(((
96 96  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.
97 -)))
98 98  
99 99  
100 100  == 2.2 How to Activate LHT65N? ==
101 101  
102 -(((
103 103  The LHT65N has two working modes:
104 -)))
105 105  
106 -* (((
107 -(% 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.
108 -)))
109 -* (((
110 -(% 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. 
111 -)))
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. 
112 112  
113 -(((
114 114  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
115 -)))
116 116  
117 117  
118 118  [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
... ... @@ -266,9 +266,6 @@
266 266  * 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.)
267 267  
268 268  
269 -
270 -
271 -
272 272  === 2.4.1 Decoder in TTN V3 ===
273 273  
274 274  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.
... ... @@ -299,10 +299,6 @@
299 299  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
300 300  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
301 301  
302 -
303 -
304 -
305 -
306 306  === 2.4.3 Built-in Temperature ===
307 307  
308 308  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -313,10 +313,6 @@
313 313  
314 314  * Temperature:  (0xF5C6-65536)/100=-26.18℃
315 315  
316 -
317 -
318 -
319 -
320 320  === 2.4.4 Built-in Humidity ===
321 321  
322 322  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
... ... @@ -323,10 +323,6 @@
323 323  
324 324  * Humidity:    0x025C/10=60.4%
325 325  
326 -
327 -
328 -
329 -
330 330  === 2.4.5 Ext # ===
331 331  
332 332  Bytes for External Sensor:
... ... @@ -479,10 +479,6 @@
479 479  * 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.
480 480  * 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)
481 481  
482 -
483 -
484 -
485 -
486 486  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
487 487  
488 488  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
... ... @@ -558,9 +558,6 @@
558 558  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.
559 559  
560 560  
561 -
562 -
563 -
564 564  === 2.6.2 Unix TimeStamp ===
565 565  
566 566  
... ... @@ -583,37 +583,20 @@
583 583  
584 584  === 2.6.3 Set Device Time ===
585 585  
586 -(((
587 587  There are two ways to set device's time:
588 -)))
589 589  
590 -(((
591 591  **~1. Through LoRaWAN MAC Command (Default settings)**
592 -)))
593 593  
594 -(((
595 595  User need to set SYNCMOD=1 to enable sync time via MAC command.
596 -)))
597 597  
598 -(((
599 599  Once LHT65N Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N. If LHT65N fails to get the time from the server, LHT65N will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
600 -)))
601 601  
602 -(((
603 603  (% style="color:red" %)Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn’t support. If server doesn’t support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.
604 -)))
605 605  
606 -(((
607 -
608 -)))
609 609  
610 -(((
611 611  **2. Manually Set Time**
612 -)))
613 613  
614 -(((
615 615  User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
616 -)))
617 617  
618 618  
619 619  
... ... @@ -965,6 +965,7 @@
965 965  * RED LED when external sensor is not connected
966 966  * For each success downlink, the PURPLE LED will blink once
967 967  
920 +
968 968  == 2.9 installation ==
969 969  
970 970  (% _mstvisible="1" %)
... ... @@ -999,6 +999,7 @@
999 999  * Operating Range: -40 ~~ 125 °C
1000 1000  * Working voltage 2.35v ~~ 5v
1001 1001  
955 +
1002 1002  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1003 1003  
1004 1004  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
... ... @@ -1136,6 +1136,7 @@
1136 1136  
1137 1137  * There is no downlink command to set to Sleep mode.
1138 1138  
1093 +
1139 1139  == 4.7 Set system time ==
1140 1140  
1141 1141  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
... ... @@ -1232,6 +1232,7 @@
1232 1232  
1233 1233  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1234 1234  
1190 +
1235 1235  == 4.13 Auto Send None-ACK messages ==
1236 1236  
1237 1237  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
... ... @@ -1655,6 +1655,7 @@
1655 1655  
1656 1656  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1657 1657  
1614 +
1658 1658  = 8. Packing Info =
1659 1659  
1660 1660