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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 205.1
edited by Edwin Chen
on 2022/10/11 18:16
Change comment: There is no comment for this version

Summary

Details

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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  
... ... @@ -278,8 +278,6 @@
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  
... ... @@ -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.
759 +**Method 1**: IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
773 773  
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 +
774 774  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
775 775  
776 776  
... ... @@ -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  
... ... @@ -1610,8 +1610,6 @@
1610 1610  
1611 1611  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1612 1612  
1613 -
1614 -
1615 1615  == 4.13 Auto Send None-ACK messages ==
1616 1616  
1617 1617  
... ... @@ -1632,8 +1632,6 @@
1632 1632  
1633 1633  * 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