Skip to Content
Last modified by Xiaoling on 2023/07/18 10:12
From version 203.1
edited by Edwin Chen
on 2022/10/06 19:30
Change comment: There is no comment for this version
To version 208.1
edited by Edwin Chen
on 2022/10/18 10:07
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -61,7 +61,6 @@
61 61  * Tri-color LED to indicate working status
62 62  * Datalog feature (Max 3328 records)
63 63  
64 -
65 65  == 1.3 Specification ==
66 66  
67 67  
... ... @@ -86,7 +86,6 @@
86 86  * ±2°C accuracy from -55°C to +125°C
87 87  * Operating Range: -55 °C ~~ 125 °C
88 88  
89 -
90 90  = 2. Connect LHT65N to IoT Server =
91 91  
92 92  
... ... @@ -199,7 +199,7 @@
199 199  
200 200  
201 201  
202 -== 2.4 Uplink Payload ==
200 +== 2.4 Uplink Payload   ( Fport~=2) ==
203 203  
204 204  
205 205  (((
... ... @@ -278,19 +278,14 @@
278 278  * The 7th byte (EXT #): defines the external sensor model.
279 279  * 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.)
280 280  
281 -
282 -
283 283  === 2.4.1 Decoder in TTN V3 ===
284 284  
285 285  
286 286  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.
287 287  
288 -Below is the position to put the decoder and LHT65N decoder can be download from here:
284 +Below is the position to put the decoder and LHT65N decoder can be download from here: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
289 289  
290 290  
291 -[[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
292 -
293 -
294 294  [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
295 295  
296 296  
... ... @@ -312,8 +312,6 @@
312 312  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
313 313  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
314 314  
315 -
316 -
317 317  === 2.4.3 Built-in Temperature ===
318 318  
319 319  
... ... @@ -325,8 +325,6 @@
325 325  
326 326  * Temperature:  (0xF5C6-65536)/100=-26.18℃
327 327  
328 -
329 -
330 330  === 2.4.4 Built-in Humidity ===
331 331  
332 332  
... ... @@ -334,8 +334,6 @@
334 334  
335 335  * Humidity:    0x025C/10=60.4%
336 336  
337 -
338 -
339 339  === 2.4.5 Ext # ===
340 340  
341 341  
... ... @@ -493,8 +493,6 @@
493 493  * (% style="color:blue" %)**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.
494 494  * (% style="color:blue" %)**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)
495 495  
496 -
497 -
498 498  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
499 499  
500 500  
... ... @@ -768,9 +768,16 @@
768 768  
769 769  There are two methods:
770 770  
771 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
772 -1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will mark these records with non-ack message and store the sensor data, and it will send all messages (10s interval) after the network recovery. note: a) LHT65N will do ack check for data records sending to make sure every data arrive server. b) LHT65N will send data in CONFIRMED Mode when PNACKMD=1, but it won't re-transmit the same packet , it will just mark it as NONE-ACK and resend after network is detected.
756 +**Method 1**: IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
773 773  
758 +
759 +**Method 2: **Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
760 +
761 +**Note for method 2:**
762 +
763 +* a) LHT65N will do an ACK check for data records sending to make sure every data arrive server.
764 +* b) LHT65N will send data in **CONFIRMED Mode** when PNACKMD=1, but LHT65N won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if LHT65N gets a ACK, LHT65N will consider there is a network connection and resend all NONE-ACK Message.
765 +
774 774  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
775 775  
776 776  
... ... @@ -1002,9 +1002,9 @@
1002 1002  (((
1003 1003  [[image:image-20221006192726-1.png||height="112" width="754"]]
1004 1004  
1005 -(% class="mark" %)No ACK Message(%%): 1: This message means this payload is fromn Uplink Message which doesn't get ACK from the server before ( for [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]] feature)
997 +(% class="mark" %)**No ACK Message**(%%): 1: This message means this payload is fromn Uplink Message which doesn't get ACK from the server before ( for [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]] feature)
1006 1006  
1007 -(% class="mark" %)Poll Message Flag(%%): 1: This message is a poll message reply.
999 +(% class="mark" %)**Poll Message Flag**(%%): 1: This message is a poll message reply.
1008 1008  
1009 1009  
1010 1010  )))
... ... @@ -1055,7 +1055,7 @@
1055 1055  (((
1056 1056  (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
1057 1057  (((
1058 -a) DR0: max is 11 bytes so one entry of data
1050 +**a) DR0:** max is 11 bytes so one entry of data
1059 1059  )))
1060 1060  )))
1061 1061  )))
... ... @@ -1066,7 +1066,7 @@
1066 1066  (((
1067 1067  (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
1068 1068  (((
1069 -b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
1061 +**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
1070 1070  )))
1071 1071  )))
1072 1072  )))
... ... @@ -1077,7 +1077,7 @@
1077 1077  (((
1078 1078  (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
1079 1079  (((
1080 -c) DR2: total payload includes 11 entries of data
1072 +**c) DR2:** total payload includes 11 entries of data
1081 1081  )))
1082 1082  )))
1083 1083  )))
... ... @@ -1088,7 +1088,7 @@
1088 1088  (((
1089 1089  (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
1090 1090  (((
1091 -d) DR3: total payload includes 22 entries of data.
1083 +**d) DR3: **total payload includes 22 entries of data.
1092 1092  )))
1093 1093  )))
1094 1094  )))
... ... @@ -1099,7 +1099,7 @@
1099 1099  (((
1100 1100  (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
1101 1101  (((
1102 -If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
1094 +If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0   
1103 1103  )))
1104 1104  )))
1105 1105  )))
... ... @@ -1200,17 +1200,37 @@
1200 1200  (((
1201 1201  (% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
1202 1202  
1195 +=== **2.7.1 ALARM MODE ( Since v1.3.1 firmware)** ===
1196 +
1197 +(((
1198 +(% class="box infomessage" %)
1199 +(((
1200 +**AT+WMOD=3,**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
1201 +
1202 +**AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1203 +
1204 +**AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1205 +
1206 +**AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1207 +
1208 +**AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1209 +
1210 +**AT+LEDALARM=1** :       Enable LED visual Alarm.
1211 +)))
1212 +)))
1213 +
1214 +
1203 1203  
1204 1204  )))
1205 1205  
1206 1206  (((
1207 -**AT COMMAND FOR ALARM MODE:**
1219 +=== **2.7.2 ALARM MODE ( Before v1.3.1 firmware)** ===
1208 1208  )))
1209 1209  
1210 1210  (% _mstvisible="1" class="box infomessage" %)
1211 1211  (((
1212 1212  (((
1213 -**AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1225 +**AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
1214 1214  )))
1215 1215  
1216 1216  (((
... ... @@ -1260,8 +1260,6 @@
1260 1260  * RED LED when external sensor is not connected
1261 1261  * For each success downlink, the PURPLE LED will blink once
1262 1262  
1263 -
1264 -
1265 1265  == 2.9 installation ==
1266 1266  
1267 1267  
... ... @@ -1319,8 +1319,6 @@
1319 1319  * Operating Range: -40 ~~ 125 °C
1320 1320  * Working voltage 2.35v ~~ 5v
1321 1321  
1322 -
1323 -
1324 1324  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1325 1325  
1326 1326  
... ... @@ -1390,8 +1390,6 @@
1390 1390  
1391 1391  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1392 1392  
1393 -
1394 -
1395 1395  == 4.2 Set External Sensor Mode ==
1396 1396  
1397 1397  
... ... @@ -1415,8 +1415,6 @@
1415 1415  
1416 1416  * 0xA20702003c: Same as AT+SETCNT=60
1417 1417  
1418 -
1419 -
1420 1420  == 4.3 Enable/Disable uplink Temperature probe ID ==
1421 1421  
1422 1422  
... ... @@ -1447,8 +1447,6 @@
1447 1447  * **0xA800**  **~-~->** AT+PID=0
1448 1448  * **0xA801**     **~-~->** AT+PID=1
1449 1449  
1450 -
1451 -
1452 1452  == 4.4 Set Password ==
1453 1453  
1454 1454  
... ... @@ -1500,8 +1500,6 @@
1500 1500  
1501 1501  * There is no downlink command to set to Sleep mode.
1502 1502  
1503 -
1504 -
1505 1505  == 4.7 Set system time ==
1506 1506  
1507 1507  
... ... @@ -1557,7 +1557,7 @@
1557 1557  
1558 1558  (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1559 1559  
1560 -**0x29 0A** ~/~/ Same as AT+SYNCTDC=0x0A
1560 +**0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
1561 1561  
1562 1562  
1563 1563  
... ... @@ -1608,10 +1608,8 @@
1608 1608  
1609 1609  (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1610 1610  
1611 -* Example: 0xA301 ~/~/Same as AT+CLRDTA
1611 +* Example: 0xA301  ~/~/  Same as AT+CLRDTA
1612 1612  
1613 -
1614 -
1615 1615  == 4.13 Auto Send None-ACK messages ==
1616 1616  
1617 1617  
... ... @@ -1630,10 +1630,8 @@
1630 1630  
1631 1631  (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1632 1632  
1633 -* Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1631 +* Example: 0x3401 ~/~/  Same as AT+PNACKMD=1
1634 1634  
1635 -
1636 -
1637 1637  = 5. Battery & How to replace =
1638 1638  
1639 1639  
... ... @@ -1703,7 +1703,6 @@
1703 1703  * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1704 1704  * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1705 1705  * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1706 -* (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1707 1707  
1708 1708  (((
1709 1709  In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**) (%%)to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
... ... @@ -2103,8 +2103,6 @@
2103 2103  
2104 2104  * (% style="color:red" %)**E3**(%%): External Temperature Probe
2105 2105  
2106 -
2107 -
2108 2108  = 8. Packing Info =
2109 2109  
2110 2110  
... ... @@ -2118,15 +2118,11 @@
2118 2118  * Device Size:  10 x 10 x 3.5 cm
2119 2119  * Device Weight: 120.5g
2120 2120  
2121 -
2122 -
2123 2123  = 9. Reference material =
2124 2124  
2125 2125  
2126 2126  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
2127 2127  
2128 -
2129 -
2130 2130  = 10. FCC Warning =
2131 2131  
2132 2132