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Last modified by Xiaoling on 2023/07/18 10:12
From version 230.1
edited by Bei Jinggeng
on 2023/03/13 09:40
Change comment: There is no comment for this version
To version 234.4
edited by Xiaoling
on 2023/04/26 14:39
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
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1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
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57 57  * Tri-color LED to indicate working status
58 58  * Datalog feature (Max 3328 records)
59 59  
60 -
61 61  == 1.3 Specification ==
62 62  
63 63  
... ... @@ -82,7 +82,6 @@
82 82  * ±2°C accuracy from -55°C to +125°C
83 83  * Operating Range: -55 °C ~~ 125 °C
84 84  
85 -
86 86  = 2. Connect LHT65N to IoT Server =
87 87  
88 88  == 2.1 How does LHT65N work? ==
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118 118  
119 119  [[image:image-20220515123819-1.png||_mstalt="430742" height="379" width="317"]]
120 120  
121 -[[image:image-20220525110604-2.png||_mstalt="427531"]]
119 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
120 +|=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Action**
121 +|(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT between 1s < time < 3s|(% style="background-color:#f2f2f2; width:117px" %)Test uplink status|(% style="background-color:#f2f2f2; width:225px" %)(((
122 +If LHT65N is already Joined to rhe LoRaWAN network, LHT65N will send an uplink packet, if LHT65N has external sensor connected,(% style="color:blue" %)**Blue led** (%%)will blink once. If LHT65N has not external sensor, (% style="color:red" %)**Red led**(%%) will blink once.
123 +)))
124 +|(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT for more than 3s|(% style="background-color:#f2f2f2; width:117px" %)Active Device|(% style="background-color:#f2f2f2; width:225px" %)(((
125 +(% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will fast blink 5 times, LHT65N will enter working mode and start to JOIN LoRaWAN network.
126 +(% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after join in network.
127 +)))
128 +|(% style="background-color:#f2f2f2; width:167px" %)Fast press ACT 5 times.|(% style="background-color:#f2f2f2; width:117px" %)Deactivate Device|(% style="background-color:#f2f2f2; width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means LHT65N is in Deep Sleep Mode.
122 122  
123 123  
131 +
124 124  == 2.3 Example to join LoRaWAN network ==
125 125  
126 126  
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148 148  Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
149 149  )))
150 150  
151 -[[image:image-20220617150003-1.jpeg||_mstalt="5426434"]]
159 +[[image:image-20230426083319-1.png]]
152 152  
153 153  User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
154 154  
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198 198  After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
199 199  )))
200 200  
201 -(% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:390px" %)
202 -|=(% style="width: 60px;" %)(((
209 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:390px" %)
210 +|=(% style="width: 60px;background-color:#D9E2F3" %)(((
203 203  **Size(bytes)**
204 -)))|=(% style="width: 30px;" %)(((
212 +)))|=(% style="width: 30px;background-color:#D9E2F3" %)(((
205 205  **2**
206 -)))|=(% style="width: 100px;" %)(((
214 +)))|=(% style="width: 100px;background-color:#D9E2F3" %)(((
207 207  **2**
208 -)))|=(% style="width: 100px;" %)(((
216 +)))|=(% style="width: 100px;background-color:#D9E2F3" %)(((
209 209  **2**
210 -)))|=(% style="width: 50px;" %)(((
218 +)))|=(% style="width: 50px;background-color:#D9E2F3" %)(((
211 211  **1**
212 -)))|=(% style="width: 50px;" %)(((
220 +)))|=(% style="width: 50px;background-color:#D9E2F3" %)(((
213 213  **4**
214 214  )))
215 215  |(% style="width:97px" %)(((
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234 234  * The 7th byte (EXT #): defines the external sensor model.
235 235  * 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.)
236 236  
237 -
238 238  === 2.4.1 Decoder in TTN V3 ===
239 239  
240 240  
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253 253  
254 254  [[image:image-20220523152839-18.png||_mstalt="457613"]]
255 255  
263 +(b)stands for binary
256 256  
257 257  [[image:image-20220522235639-1.png||_mstalt="431392" height="139" width="727"]]
258 258  
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259 259  
260 260  Check the battery voltage for LHT65N.
261 261  
262 -* BAT status=(0Xcba4>>14)&0xFF=11(DEC)  /  B(HEX) ，very good
270 +* BAT status=(0Xcba4>>14)&0xFF=11 (BIN) ，very good
263 263  * Battery Voltage =0xCBA4&0x3FFF=0x0BA4=2980mV
264 264  
265 -
266 266  === 2.4.3 Built-in Temperature ===
267 267  
268 268  
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274 274  
275 275  * Temperature:  (0xF5C6-65536)/100=-26.18℃
276 276  
277 -
278 278  === 2.4.4 Built-in Humidity ===
279 279  
280 280  
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282 282  
283 283  * Humidity:    0x025C/10=60.4%
284 284  
285 -
286 286  === 2.4.5 Ext # ===
287 287  
288 288  
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383 383  * (% 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.
384 384  * (% 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)
385 385  
386 -
387 387  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
388 388  
389 389  
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968 968  * RED LED when external sensor is not connected
969 969  * For each success downlink, the PURPLE LED will blink once
970 970  
971 -
972 972  == 2.9 installation ==
973 973  
974 974  
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1021 1021  * Operating Range: -40 ~~ 125 °C
1022 1022  * Working voltage 2.35v ~~ 5v
1023 1023  
1024 -
1025 1025  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1026 1026  
1027 1027  
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1090 1090  
1091 1091  * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
1092 1092  
1093 -
1094 1094  == 4.2 Set External Sensor Mode ==
1095 1095  
1096 1096  
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1114 1114  
1115 1115  * 0xA20702003c: Same as AT+SETCNT=60
1116 1116  
1117 -
1118 1118  == 4.3 Enable/Disable uplink Temperature probe ID ==
1119 1119  
1120 1120  
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1145 1145  * **0xA800**  **~-~->** AT+PID=0
1146 1146  * **0xA801**     **~-~->** AT+PID=1
1147 1147  
1148 -
1149 1149  == 4.4 Set Password ==
1150 1150  
1151 1151  
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1195 1195  
1196 1196  * There is no downlink command to set to Sleep mode.
1197 1197  
1198 -
1199 1199  == 4.7 Set system time ==
1200 1200  
1201 1201  
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1299 1299  
1300 1300  * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1301 1301  
1302 -
1303 1303  == 4.13 Auto Send None-ACK messages ==
1304 1304  
1305 1305  
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1318 1318  
1319 1319  * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1320 1320  
1321 -
1322 1322  == 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm（Since firmware 1.3.0） ==
1323 1323  
1324 1324  
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1637 1637  [[image:image-20220615153355-1.png||_mstalt="430222"]]
1638 1638  
1639 1639  
1640 -(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1636 +(% style="color:blue" %)**Step1**(%%): Install [[TremoProgrammer>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AAAnJD_qGZ42bB52o4UmH9v9a/LHT65N%20Temperature%20%26%20Humidity%20Sensor/tool?dl=0&subfolder_nav_tracking=1]]  first.
1641 1641  
1642 1642  [[image:image-20220615170542-5.png||_mstalt="430638"]]
1643 1643  
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1703 1703  [[image:image-20220623110706-1.png||_mstalt="427869"]]
1704 1704  
1705 1705  
1706 -(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1702 +(% style="color:blue" %)**Step1**(%%): Install [[TremoProgrammer>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AAAnJD_qGZ42bB52o4UmH9v9a/LHT65N%20Temperature%20%26%20Humidity%20Sensor/tool?dl=0&subfolder_nav_tracking=1]]  first.
1707 1707  
1708 1708  [[image:image-20220615170542-5.png||_mstalt="430638"]]
1709 1709  
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1763 1763  
1764 1764  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1765 1765  
1766 -
1767 1767  = 8. Packing Info =
1768 1768  
1769 1769  
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1777 1777  * Device Size:  10 x 10 x 3.5 mm
1778 1778  * Device Weight: 120.5g
1779 1779  
1780 -
1781 1781  = 9. Reference material =
1782 1782  
1783 1783  
1784 1784  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
1785 1785  
1786 -
1787 1787  = 10. FCC Warning =
1788 1788  
1789 1789  
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1792 1792  (1) This device may not cause harmful interference；
1793 1793  
1794 1794  (2) this device must accept any interference received, including interference that may cause undesired operation.
1795 -
1796 -
1797 -
image-20230426083319-1.png
Author
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1 +XWiki.Xiaoling
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