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Last modified by Xiaoling on 2023/07/18 10:12
From version 205.1
edited by Edwin Chen
on 2022/10/11 18:16
Change comment: There is no comment for this version
To version 203.1
edited by Edwin Chen
on 2022/10/06 19:30
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -61,6 +61,7 @@
61 61  * Tri-color LED to indicate working status
62 62  * Datalog feature (Max 3328 records)
63 63  
64 +
64 64  == 1.3 Specification ==
65 65  
66 66  
... ... @@ -85,6 +85,7 @@
85 85  * ±2°C accuracy from -55°C to +125°C
86 86  * Operating Range: -55 °C ~~ 125 °C
87 87  
89 +
88 88  = 2. Connect LHT65N to IoT Server =
89 89  
90 90  
... ... @@ -276,6 +276,8 @@
276 276  * The 7th byte (EXT #): defines the external sensor model.
277 277  * 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.)
278 278  
281 +
282 +
279 279  === 2.4.1 Decoder in TTN V3 ===
280 280  
281 281  
... ... @@ -308,6 +308,8 @@
308 308  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
309 309  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
310 310  
315 +
316 +
311 311  === 2.4.3 Built-in Temperature ===
312 312  
313 313  
... ... @@ -319,6 +319,8 @@
319 319  
320 320  * Temperature:  (0xF5C6-65536)/100=-26.18℃
321 321  
328 +
329 +
322 322  === 2.4.4 Built-in Humidity ===
323 323  
324 324  
... ... @@ -326,6 +326,8 @@
326 326  
327 327  * Humidity:    0x025C/10=60.4%
328 328  
337 +
338 +
329 329  === 2.4.5 Ext # ===
330 330  
331 331  
... ... @@ -483,6 +483,8 @@
483 483  * (% 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.
484 484  * (% 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)
485 485  
496 +
497 +
486 486  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
487 487  
488 488  
... ... @@ -756,16 +756,9 @@
756 756  
757 757  There are two methods:
758 758  
759 -**Method 1**: IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
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.
760 760  
761 -
762 -**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.
763 -
764 -**Note for method 2:**
765 -
766 -* a) LHT65N will do an ACK check for data records sending to make sure every data arrive server.
767 -* 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.
768 -
769 769  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
770 770  
771 771  
... ... @@ -1255,6 +1255,8 @@
1255 1255  * RED LED when external sensor is not connected
1256 1256  * For each success downlink, the PURPLE LED will blink once
1257 1257  
1263 +
1264 +
1258 1258  == 2.9 installation ==
1259 1259  
1260 1260  
... ... @@ -1312,6 +1312,8 @@
1312 1312  * Operating Range: -40 ~~ 125 °C
1313 1313  * Working voltage 2.35v ~~ 5v
1314 1314  
1322 +
1323 +
1315 1315  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1316 1316  
1317 1317  
... ... @@ -1381,6 +1381,8 @@
1381 1381  
1382 1382  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1383 1383  
1393 +
1394 +
1384 1384  == 4.2 Set External Sensor Mode ==
1385 1385  
1386 1386  
... ... @@ -1404,6 +1404,8 @@
1404 1404  
1405 1405  * 0xA20702003c: Same as AT+SETCNT=60
1406 1406  
1418 +
1419 +
1407 1407  == 4.3 Enable/Disable uplink Temperature probe ID ==
1408 1408  
1409 1409  
... ... @@ -1434,6 +1434,8 @@
1434 1434  * **0xA800**  **~-~->** AT+PID=0
1435 1435  * **0xA801**     **~-~->** AT+PID=1
1436 1436  
1450 +
1451 +
1437 1437  == 4.4 Set Password ==
1438 1438  
1439 1439  
... ... @@ -1485,6 +1485,8 @@
1485 1485  
1486 1486  * There is no downlink command to set to Sleep mode.
1487 1487  
1503 +
1504 +
1488 1488  == 4.7 Set system time ==
1489 1489  
1490 1490  
... ... @@ -1593,6 +1593,8 @@
1593 1593  
1594 1594  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1595 1595  
1613 +
1614 +
1596 1596  == 4.13 Auto Send None-ACK messages ==
1597 1597  
1598 1598  
... ... @@ -1613,6 +1613,8 @@
1613 1613  
1614 1614  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1615 1615  
1635 +
1636 +
1616 1616  = 5. Battery & How to replace =
1617 1617  
1618 1618  
... ... @@ -1682,6 +1682,7 @@
1682 1682  * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1683 1683  * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1684 1684  * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1706 +* (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1685 1685  
1686 1686  (((
1687 1687  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.
... ... @@ -2081,6 +2081,8 @@
2081 2081  
2082 2082  * (% style="color:red" %)**E3**(%%): External Temperature Probe
2083 2083  
2106 +
2107 +
2084 2084  = 8. Packing Info =
2085 2085  
2086 2086  
... ... @@ -2094,11 +2094,15 @@
2094 2094  * Device Size:  10 x 10 x 3.5 cm
2095 2095  * Device Weight: 120.5g
2096 2096  
2121 +
2122 +
2097 2097  = 9. Reference material =
2098 2098  
2099 2099  
2100 2100  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
2101 2101  
2128 +
2129 +
2102 2102  = 10. FCC Warning =
2103 2103  
2104 2104