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Last modified by Xiaoling on 2023/07/18 10:12
From version 215.1
edited by Edwin Chen
on 2022/11/03 23:50
Change comment: There is no comment for this version
To version 221.1
edited by Bei Jinggeng
on 2022/11/17 16:54
Change comment: There is no comment for this version

Summary

Details

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Author
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1 -XWiki.Edwin
1 +XWiki.Bei
Content
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184 184  
185 185  
186 186  
187 -
188 188  === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
189 189  
190 190  
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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  
678 +
682 682  (((
683 683  **2. Manually Set Time**
684 684  )))
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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 -10 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.
878 +**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.
882 882  
883 883  (% style="color:#4f81bd" %)**Downlink Command:**
884 884  
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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 -(((
919 +
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  (((
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1337 1337  
1338 1338  * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1339 1339  
1340 -== 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm ==
1332 +== 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm（Since firmware 1.3.0） ==
1341 1341  
1342 1342  
1343 1343  Feature: Set internal and external temperature sensor alarms.
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1382 1382  
1383 1383  0xA5 01 0A 11 94 29 04 ~-~- AT+WMOD=1,10,45,105  (AT+WMOD = second byte, third byte, fourth and fifth bytes divided by 100, sixth and seventh bytes divided by 100 )
1384 1384  
1377 +0XA5 01 0A F9 C0 29 04 ~-~-AT+WMOD=1,10,-16,105(Need to convert -16 to -1600 for calculation，-1600(DEC)=FFFFFFFFFFFFF9C0(HEX)  FFFFFFFFFFFFF9C0(HEX) +10000(HEX)=F9C0(HEX))
1378 +
1385 1385  0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
1386 1386  
1387 1387  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.
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1394 1394  == 5.1 Battery Type ==
1395 1395  
1396 1396  
1391 +
1397 1397  (((
1398 -(((
1399 1399  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.
1400 1400  )))
1401 -)))
1402 1402  
1403 -(((
1404 -
1405 -)))
1406 1406  
1397 +
1407 1407  (((
1408 -(((
1409 1409  The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1410 1410  [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1411 1411  )))
1412 -)))
1413 1413  
1414 1414  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1415 1415  
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1432 1432  [[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]]
1433 1433  )))
1434 1434  
1435 -(((
1436 -
1437 -)))
1438 1438  
1439 1439  (((
1440 1440  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]]
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1816 1816  [[image:image-20220623113959-5.png||height="528" width="397"]]
1817 1817  
1818 1818  (% _msthash="506146" _msttexthash="52173160" %)
1819 -Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1805 +Connect A8 and GND with Dupont wire for a while and then separate，enter reset mode
1820 1820  
1821 1821  
1822 1822  
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1833 1833  [[image:image-20220620160723-8.png]]
1834 1834  
1835 1835  
1836 -Finally,restart reset device again
1822 +Finally,Disconnect 3.3v，Connect A8 and GND with Dupont wire for a while and then separate，exit reset mode
1837 1837  
1838 1838  
1839 1839  
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1867 1867  
1868 1868  **Dimension and weight**:
1869 1869  
1870 -* Device Size:  10 x 10 x 3.5 cm
1856 +* Device Size:  10 x 10 x 3.5 mm
1871 1871  * Device Weight: 120.5g
1872 1872  
1873 1873  = 9. Reference material =