Last modified by Xiaoling on 2023/07/18 10:12

From version 217.1
edited by Bei Jinggeng
on 2022/11/11 11:27
Change comment: There is no comment for this version
To version 223.2
edited by Xiaoling
on 2022/12/02 15:11
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
... ... @@ -16,7 +16,6 @@
16 16  
17 17  = 1. Introduction =
18 18  
19 -
20 20  == 1.1 What is LHT65N Temperature & Humidity Sensor ==
21 21  
22 22  
... ... @@ -45,7 +45,6 @@
45 45  )))
46 46  
47 47  
48 -
49 49  == 1.2 Features ==
50 50  
51 51  
... ... @@ -61,6 +61,8 @@
61 61  * Tri-color LED to indicate working status
62 62  * Datalog feature (Max 3328 records)
63 63  
62 +
63 +
64 64  == 1.3 Specification ==
65 65  
66 66  
... ... @@ -85,9 +85,10 @@
85 85  * ±2°C accuracy from -55°C to +125°C
86 86  * Operating Range: -55 °C ~~ 125 °C
87 87  
88 -= 2. Connect LHT65N to IoT Server =
89 89  
90 90  
90 += 2. Connect LHT65N to IoT Server =
91 +
91 91  == 2.1 How does LHT65N work? ==
92 92  
93 93  
... ... @@ -100,7 +100,6 @@
100 100  )))
101 101  
102 102  
103 -
104 104  == 2.2 How to Activate LHT65N? ==
105 105  
106 106  
... ... @@ -109,7 +109,7 @@
109 109  )))
110 110  
111 111  * (((
112 -(% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesnt have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
112 +(% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesn't have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
113 113  )))
114 114  * (((
115 115  (% style="color:blue" %)**Working Mode**(%%):  In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65N will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
... ... @@ -125,7 +125,6 @@
125 125  [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
126 126  
127 127  
128 -
129 129  == 2.3 Example to join LoRaWAN network ==
130 130  
131 131  
... ... @@ -142,7 +142,6 @@
142 142  )))
143 143  
144 144  
145 -
146 146  === 2.3.1 Step 1: Create Device n TTN ===
147 147  
148 148  
... ... @@ -183,8 +183,6 @@
183 183  [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
184 184  
185 185  
186 -
187 -
188 188  === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
189 189  
190 190  
... ... @@ -195,7 +195,6 @@
195 195  [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
196 196  
197 197  
198 -
199 199  == 2.4 Uplink Payload   ( Fport~=2) ==
200 200  
201 201  
... ... @@ -243,6 +243,8 @@
243 243  * The 7th byte (EXT #): defines the external sensor model.
244 244  * 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.)
245 245  
241 +
242 +
246 246  === 2.4.1 Decoder in TTN V3 ===
247 247  
248 248  
... ... @@ -254,7 +254,6 @@
254 254  [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
255 255  
256 256  
257 -
258 258  === 2.4.2 BAT-Battery Info ===
259 259  
260 260  
... ... @@ -271,6 +271,8 @@
271 271  * BAT status=(0Xcba4>>14)&0xFF=11(B),very good
272 272  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
273 273  
270 +
271 +
274 274  === 2.4.3 Built-in Temperature ===
275 275  
276 276  
... ... @@ -282,6 +282,8 @@
282 282  
283 283  * Temperature:  (0xF5C6-65536)/100=-26.18℃
284 284  
283 +
284 +
285 285  === 2.4.4 Built-in Humidity ===
286 286  
287 287  
... ... @@ -289,6 +289,8 @@
289 289  
290 290  * Humidity:    0x025C/10=60.4%
291 291  
292 +
293 +
292 292  === 2.4.5 Ext # ===
293 293  
294 294  
... ... @@ -297,10 +297,8 @@
297 297  [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
298 298  
299 299  
300 -
301 301  === 2.4.6 Ext value ===
302 302  
303 -
304 304  ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
305 305  
306 306  
... ... @@ -323,7 +323,6 @@
323 323  If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
324 324  
325 325  
326 -
327 327  ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
328 328  
329 329  
... ... @@ -387,6 +387,8 @@
387 387  * (% 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.
388 388  * (% 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)
389 389  
389 +
390 +
390 390  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
391 391  
392 392  
... ... @@ -435,7 +435,6 @@
435 435  [[image:image-20220628151143-7.png]]
436 436  
437 437  
438 -
439 439  ==== 2.4.6.4 Ext~=2 TMP117 Sensor (Since Firmware v1.3) ====
440 440  
441 441  
... ... @@ -452,7 +452,6 @@
452 452  The external cable NE2 can be use for MOD4 and MOD8
453 453  
454 454  
455 -
456 456  ==== 2.4.6.5 Ext~=4 Interrupt Mode (Since Firmware v1.3) ====
457 457  
458 458  
... ... @@ -499,7 +499,6 @@
499 499  [[image:image-20220906101145-3.png]]
500 500  
501 501  
502 -
503 503  ==== 2.4.6.6 Ext~=8 Counting Mode(Since Firmware v1.3) ====
504 504  
505 505  
... ... @@ -551,7 +551,6 @@
551 551  A2 08 02 00 00 00 3C:  Same as AT+ SETCNT=60  (AT+ SETCNT = 4th byte and 5th byte and 6th byte and 7th byte)
552 552  
553 553  
554 -
555 555  == 2.5 Show data on Datacake ==
556 556  
557 557  
... ... @@ -599,7 +599,6 @@
599 599  [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
600 600  
601 601  
602 -
603 603  == 2.6 Datalog Feature ==
604 604  
605 605  
... ... @@ -608,7 +608,6 @@
608 608  )))
609 609  
610 610  
611 -
612 612  === 2.6.1 Ways to get datalog via LoRaWAN ===
613 613  
614 614  
... ... @@ -631,7 +631,6 @@
631 631  [[image:image-20220703111700-2.png||height="381" width="1119"]]
632 632  
633 633  
634 -
635 635  === 2.6.2 Unix TimeStamp ===
636 636  
637 637  
... ... @@ -648,10 +648,10 @@
648 648  
649 649  [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
650 650  
645 +
651 651  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
652 652  
653 653  
654 -
655 655  === 2.6.3 Set Device Time ===
656 656  
657 657  
... ... @@ -675,10 +675,8 @@
675 675  (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
676 676  )))
677 677  
678 -(((
679 -
680 -)))
681 681  
673 +
682 682  (((
683 683  **2. Manually Set Time**
684 684  )))
... ... @@ -688,7 +688,6 @@
688 688  )))
689 689  
690 690  
691 -
692 692  === 2.6.4 Poll sensor value ===
693 693  
694 694  
... ... @@ -706,7 +706,6 @@
706 706  Uplink Internal =5s,means LHT65N will send one packet every 5s. range 5~~255s.
707 707  
708 708  
709 -
710 710  === 2.6.5 Datalog Uplink payload ===
711 711  
712 712  
... ... @@ -781,7 +781,6 @@
781 781  Unix time is 0x60066009=1611030423s=21/1/19 04:27:03
782 782  
783 783  
784 -
785 785  == 2.7 Alarm Mode & Feature "Multi sampling, one uplink" ==
786 786  
787 787  
... ... @@ -793,11 +793,10 @@
793 793  (% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
794 794  
795 795  
796 -
797 797  === 2.7.1 ALARM MODE ( Since v1.3.1 firmware) ===
798 798  
799 799  
800 -**Internal GXHT30 temperature alarm**
788 +**Internal GXHT30 temperature alarm(Acquisition time: fixed at one minute)**
801 801  
802 802  (((
803 803  (% class="box infomessage" %)
... ... @@ -861,7 +861,7 @@
861 861  TEMPhigh=0014
862 862  
863 863  
864 -**Fluctuation alarm for DS18B20 and TMP117**
852 +**Fluctuation alarm for DS18B20 and TMP117(Acquisition time: minimum 1s)**
865 865  
866 866  **AT+WMOD=2,60,5** 
867 867  
... ... @@ -878,8 +878,16 @@
878 878  
879 879  ==== **Sampling multiple times and uplink together** ====
880 880  
881 -**AT+WMOD=3,1,60,20,-16,32,1**  ~/~/ Mode 3, the collection interval is 60s, the total number of collection is 20 times, and the data of these 20 times will be sent to the 20th time, with a maximum of 60 groups, the normal working temperature range is -16 to 32°C, 1 is to open the temperature alarm, 0 is to close the temperature alarm, and the temperature is turned on. After the alarm, if the temperature collected at the current time exceeds the normal working temperature, a data will be sent immediately.
869 +**AT+WMOD=3,1,60,20,-16,32,1**   
882 882  
871 +Explain:
872 +
873 +* Set Working Mode to **Mode 3**
874 +* Sampling Interval is **60**s.
875 +* When there is **20** sampling dats, Device will send these data via one uplink. (max value is 60, means max 60 sampling in one uplink)
876 +* Temperature alarm range is **-16** to **32**°C,
877 +* **1** to enable temperature alarm, **0** to disable the temperature alarm. If alarm is enabled, a data will be sent immediately  if temperate exceeds the Alarm range.
878 +
883 883  (% style="color:#4f81bd" %)**Downlink Command:**
884 884  
885 885  **Example: **A50301003C14FFF0002001
... ... @@ -901,7 +901,7 @@
901 901  
902 902  **Uplink payload( Fport=3)**
903 903  
904 -**Example: **CBEA0109920A4109C4
900 +**Example: CBEA**01**0992**//0A41//**09C4**
905 905  
906 906  BatV=CBEA
907 907  
... ... @@ -917,16 +917,11 @@
917 917  (% style="color:red" %)**Note: This uplink will automatically select the appropriate DR according to the data length**
918 918  
919 919  (% style="color:red" %)** In this mode, the temperature resolution of ds18b20 is 0.25℃ to save power consumption**
920 -
921 -
922 -
923 923  )))
924 924  
925 -(((
918 +
926 926  === 2.7.2 ALARM MODE ( Before v1.3.1 firmware) ===
927 927  
928 -
929 -)))
930 930  
931 931  (% _mstvisible="1" class="box infomessage" %)
932 932  (((
... ... @@ -966,7 +966,6 @@
966 966  TEMPhigh=003C
967 967  
968 968  
969 -
970 970  == 2.8 LED Indicator ==
971 971  
972 972  
... ... @@ -981,6 +981,8 @@
981 981  * RED LED when external sensor is not connected
982 982  * For each success downlink, the PURPLE LED will blink once
983 983  
974 +
975 +
984 984  == 2.9 installation ==
985 985  
986 986  
... ... @@ -988,10 +988,8 @@
988 988  [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
989 989  
990 990  
991 -
992 992  = 3. Sensors and Accessories =
993 993  
994 -
995 995  == 3.1 E2 Extension Cable ==
996 996  
997 997  
... ... @@ -1022,8 +1022,6 @@
1022 1022  [[image:image-20220619092421-3.png||height="371" width="529"]]
1023 1023  
1024 1024  
1025 -
1026 -
1027 1027  == 3.2 E3 Temperature Probe ==
1028 1028  
1029 1029  
... ... @@ -1038,6 +1038,8 @@
1038 1038  * Operating Range: -40 ~~ 125 °C
1039 1039  * Working voltage 2.35v ~~ 5v
1040 1040  
1029 +
1030 +
1041 1041  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1042 1042  
1043 1043  
... ... @@ -1085,7 +1085,6 @@
1085 1085  )))
1086 1086  
1087 1087  
1088 -
1089 1089  == 4.1 Set Transmit Interval Time ==
1090 1090  
1091 1091  
... ... @@ -1107,6 +1107,8 @@
1107 1107  
1108 1108  * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
1109 1109  
1099 +
1100 +
1110 1110  == 4.2 Set External Sensor Mode ==
1111 1111  
1112 1112  
... ... @@ -1130,6 +1130,8 @@
1130 1130  
1131 1131  * 0xA20702003c: Same as AT+SETCNT=60
1132 1132  
1124 +
1125 +
1133 1133  == 4.3 Enable/Disable uplink Temperature probe ID ==
1134 1134  
1135 1135  
... ... @@ -1160,6 +1160,8 @@
1160 1160  * **0xA800**  **~-~->** AT+PID=0
1161 1161  * **0xA801**     **~-~->** AT+PID=1
1162 1162  
1156 +
1157 +
1163 1163  == 4.4 Set Password ==
1164 1164  
1165 1165  
... ... @@ -1176,7 +1176,6 @@
1176 1176  No downlink command for this feature.
1177 1177  
1178 1178  
1179 -
1180 1180  == 4.5 Quit AT Command ==
1181 1181  
1182 1182  
... ... @@ -1193,7 +1193,6 @@
1193 1193  No downlink command for this feature.
1194 1194  
1195 1195  
1196 -
1197 1197  == 4.6 Set to sleep mode ==
1198 1198  
1199 1199  
... ... @@ -1211,6 +1211,8 @@
1211 1211  
1212 1212  * There is no downlink command to set to Sleep mode.
1213 1213  
1207 +
1208 +
1214 1214  == 4.7 Set system time ==
1215 1215  
1216 1216  
... ... @@ -1227,7 +1227,6 @@
1227 1227  0x306007806000  ~/~/  Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1228 1228  
1229 1229  
1230 -
1231 1231  == 4.8 Set Time Sync Mode ==
1232 1232  
1233 1233  
... ... @@ -1252,7 +1252,6 @@
1252 1252  0x28 00  ~/~/  Same As AT+SYNCMOD=0
1253 1253  
1254 1254  
1255 -
1256 1256  == 4.9 Set Time Sync Interval ==
1257 1257  
1258 1258  
... ... @@ -1269,7 +1269,6 @@
1269 1269  **0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
1270 1270  
1271 1271  
1272 -
1273 1273  == 4.10 Print data entries base on page. ==
1274 1274  
1275 1275  
... ... @@ -1286,7 +1286,6 @@
1286 1286  No downlink commands for feature
1287 1287  
1288 1288  
1289 -
1290 1290  == 4.11 Print last few data entries. ==
1291 1291  
1292 1292  
... ... @@ -1303,7 +1303,6 @@
1303 1303  No downlink commands for feature
1304 1304  
1305 1305  
1306 -
1307 1307  == 4.12 Clear Flash Record ==
1308 1308  
1309 1309  
... ... @@ -1319,6 +1319,8 @@
1319 1319  
1320 1320  * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1321 1321  
1312 +
1313 +
1322 1322  == 4.13 Auto Send None-ACK messages ==
1323 1323  
1324 1324  
... ... @@ -1337,6 +1337,8 @@
1337 1337  
1338 1338  * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1339 1339  
1332 +
1333 +
1340 1340  == 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm(Since firmware 1.3.0) ==
1341 1341  
1342 1342  
... ... @@ -1389,34 +1389,25 @@
1389 1389  0xA5 FF ~-~- After the device receives it, upload the current alarm configuration (FPORT=8). Such as 01 0A 11 94 29 04 or 02 0A 02.
1390 1390  
1391 1391  
1392 -
1393 1393  = 5. Battery & How to replace =
1394 1394  
1395 -
1396 1396  == 5.1 Battery Type ==
1397 1397  
1398 1398  
1399 1399  (((
1400 -(((
1401 1401  LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters.
1402 1402  )))
1403 -)))
1404 1404  
1405 1405  (((
1406 -
1407 -)))
1408 -
1409 -(((
1410 -(((
1411 1411  The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1397 +
1398 +
1412 1412  [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1413 1413  )))
1414 -)))
1415 1415  
1416 1416  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1417 1417  
1418 1418  
1419 -
1420 1420  == 5.2 Replace Battery ==
1421 1421  
1422 1422  
... ... @@ -1425,7 +1425,6 @@
1425 1425  [[image:image-20220515075440-2.png||_mstalt="429546" _mstvisible="3" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" _mstvisible="3" height="193" width="257"]]
1426 1426  
1427 1427  
1428 -
1429 1429  == 5.3 Battery Life Analyze ==
1430 1430  
1431 1431  
... ... @@ -1434,9 +1434,6 @@
1434 1434  [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
1435 1435  )))
1436 1436  
1437 -(((
1438 -
1439 -)))
1440 1440  
1441 1441  (((
1442 1442  A full detail test report for LHT65N on different frequency can be found at : [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0>>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
... ... @@ -1443,10 +1443,8 @@
1443 1443  )))
1444 1444  
1445 1445  
1446 -
1447 1447  = 6. FAQ =
1448 1448  
1449 -
1450 1450  == 6.1 How to use AT Command? ==
1451 1451  
1452 1452  
... ... @@ -1667,7 +1667,6 @@
1667 1667  AT+PID:  Get or set the PID
1668 1668  
1669 1669  
1670 -
1671 1671  == 6.2 Where to use AT commands and Downlink commands ==
1672 1672  
1673 1673  
... ... @@ -1707,7 +1707,6 @@
1707 1707  [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1708 1708  
1709 1709  
1710 -
1711 1711  == 6.3 How to change the uplink interval? ==
1712 1712  
1713 1713  
... ... @@ -1714,7 +1714,6 @@
1714 1714  Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_msthash="506137" _msttexthash="5712018" style="background-color: rgb(255, 255, 255);"]]
1715 1715  
1716 1716  
1717 -
1718 1718  == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1719 1719  
1720 1720  
... ... @@ -1733,7 +1733,6 @@
1733 1733  [[image:image-20220615154519-3.png||height="672" width="807"]]
1734 1734  
1735 1735  
1736 -
1737 1737  == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1738 1738  
1739 1739  
... ... @@ -1776,7 +1776,6 @@
1776 1776  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1777 1777  
1778 1778  
1779 -
1780 1780  == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1781 1781  
1782 1782  
... ... @@ -1796,7 +1796,6 @@
1796 1796  [[image:image-20220615154519-3.png||height="672" width="807"]]
1797 1797  
1798 1798  
1799 -
1800 1800  == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1801 1801  
1802 1802  
... ... @@ -1818,7 +1818,7 @@
1818 1818  [[image:image-20220623113959-5.png||height="528" width="397"]]
1819 1819  
1820 1820  (% _msthash="506146" _msttexthash="52173160" %)
1821 -Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1794 +Connect A8 and GND with Dupont wire for a while and then separate,enter reset mode
1822 1822  
1823 1823  
1824 1824  
... ... @@ -1835,10 +1835,9 @@
1835 1835  [[image:image-20220620160723-8.png]]
1836 1836  
1837 1837  
1838 -Finally,restart reset device again
1811 +Finally,Disconnect 3.3v,Connect A8 and GND with Dupont wire for a while and then separate,exit reset mode
1839 1839  
1840 1840  
1841 -
1842 1842  = 7. Order Info =
1843 1843  
1844 1844  
... ... @@ -1859,6 +1859,7 @@
1859 1859  
1860 1860  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1861 1861  
1834 +
1862 1862  = 8. Packing Info =
1863 1863  
1864 1864  
... ... @@ -1869,14 +1869,16 @@
1869 1869  
1870 1870  **Dimension and weight**:
1871 1871  
1872 -* Device Size:  10 x 10 x 3.5 cm
1845 +* Device Size:  10 x 10 x 3.5 mm
1873 1873  * Device Weight: 120.5g
1874 1874  
1848 +
1875 1875  = 9. Reference material =
1876 1876  
1877 1877  
1878 1878  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1879 1879  
1854 +
1880 1880  = 10. FCC Warning =
1881 1881  
1882 1882