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Last modified by Xiaoling on 2023/07/18 10:12
From version 227.1
edited by Bei Jinggeng
on 2023/02/01 11:11
Change comment: There is no comment for this version
To version 228.1
edited by Bei Jinggeng
on 2023/02/01 11:15
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -58,7 +58,6 @@
58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature (Max 3328 records)
60 60  
61 -
62 62  == 1.3 Specification ==
63 63  
64 64  
... ... @@ -83,7 +83,6 @@
83 83  * ±2°C accuracy from -55°C to +125°C
84 84  * Operating Range: -55 °C ~~ 125 °C
85 85  
86 -
87 87  = 2. Connect LHT65N to IoT Server =
88 88  
89 89  == 2.1 How does LHT65N work? ==
... ... @@ -235,7 +235,6 @@
235 235  * The 7th byte (EXT #): defines the external sensor model.
236 236  * The 8^^th^^ ~~ 11^^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.)
237 237  
238 -
239 239  === 2.4.1 Decoder in TTN V3 ===
240 240  
241 241  
... ... @@ -263,7 +263,6 @@
263 263  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
264 264  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
265 265  
266 -
267 267  === 2.4.3 Built-in Temperature ===
268 268  
269 269  
... ... @@ -275,7 +275,6 @@
275 275  
276 276  * Temperature:  (0xF5C6-65536)/100=-26.18℃
277 277  
278 -
279 279  === 2.4.4 Built-in Humidity ===
280 280  
281 281  
... ... @@ -283,7 +283,6 @@
283 283  
284 284  * Humidity:    0x025C/10=60.4%
285 285  
286 -
287 287  === 2.4.5 Ext # ===
288 288  
289 289  
... ... @@ -311,6 +311,10 @@
311 311  
312 312  * External temperature= (0xF54F-65536)/100=-27.37℃
313 313  
308 +F54F :  (F54F & 8000 == 1) , temp = (F54F - 65536)/100 = 27.37℃
309 +
310 +（0105 & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
311 +
314 314  The last 2 bytes of data are meaningless
315 315  
316 316  If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
... ... @@ -379,7 +379,6 @@
379 379  * (% 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.
380 380  * (% 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)
381 381  
382 -
383 383  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
384 384  
385 385  
... ... @@ -962,7 +962,6 @@
962 962  * RED LED when external sensor is not connected
963 963  * For each success downlink, the PURPLE LED will blink once
964 964  
965 -
966 966  == 2.9 installation ==
967 967  
968 968  
... ... @@ -1015,7 +1015,6 @@
1015 1015  * Operating Range: -40 ~~ 125 °C
1016 1016  * Working voltage 2.35v ~~ 5v
1017 1017  
1018 -
1019 1019  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1020 1020  
1021 1021  
... ... @@ -1084,7 +1084,6 @@
1084 1084  
1085 1085  * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
1086 1086  
1087 -
1088 1088  == 4.2 Set External Sensor Mode ==
1089 1089  
1090 1090  
... ... @@ -1108,7 +1108,6 @@
1108 1108  
1109 1109  * 0xA20702003c: Same as AT+SETCNT=60
1110 1110  
1111 -
1112 1112  == 4.3 Enable/Disable uplink Temperature probe ID ==
1113 1113  
1114 1114  
... ... @@ -1139,7 +1139,6 @@
1139 1139  * **0xA800**  **~-~->** AT+PID=0
1140 1140  * **0xA801**     **~-~->** AT+PID=1
1141 1141  
1142 -
1143 1143  == 4.4 Set Password ==
1144 1144  
1145 1145  
... ... @@ -1189,7 +1189,6 @@
1189 1189  
1190 1190  * There is no downlink command to set to Sleep mode.
1191 1191  
1192 -
1193 1193  == 4.7 Set system time ==
1194 1194  
1195 1195  
... ... @@ -1293,7 +1293,6 @@
1293 1293  
1294 1294  * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1295 1295  
1296 -
1297 1297  == 4.13 Auto Send None-ACK messages ==
1298 1298  
1299 1299  
... ... @@ -1312,7 +1312,6 @@
1312 1312  
1313 1313  * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1314 1314  
1315 -
1316 1316  == 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm（Since firmware 1.3.0） ==
1317 1317  
1318 1318  
... ... @@ -1757,7 +1757,6 @@
1757 1757  
1758 1758  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1759 1759  
1760 -
1761 1761  = 8. Packing Info =
1762 1762  
1763 1763  
... ... @@ -1771,13 +1771,11 @@
1771 1771  * Device Size:  10 x 10 x 3.5 mm
1772 1772  * Device Weight: 120.5g
1773 1773  
1774 -
1775 1775  = 9. Reference material =
1776 1776  
1777 1777  
1778 1778  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
1779 1779  
1780 -
1781 1781  = 10. FCC Warning =
1782 1782  
1783 1783