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Last modified by Mengting Qiu on 2025/07/03 14:48
From version 132.1
edited by Bei Jinggeng
on 2022/06/15 09:49
Change comment: There is no comment for this version
To version 119.23
edited by Xiaoling
on 2022/06/09 18:23
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
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1 -(% style="text-align:center" %)
2 -[[image:image-20220613162008-1.png||height="579" width="379"]]
1 +(% _mstvisible="2" style="text-align:center" %)
2 +[[image:image-20220523115324-1.jpeg||_mstalt="469677" _mstvisible="4" height="317" width="317"]]
3 3  
4 4  
5 +(% _mstvisible="1" %)
6 +(% _msthash="315237" _msttexthash="1697033" _mstvisible="3" %)**LHT65N LoRaWAN Temperature & Humidity Sensor Manual**
5 5  
6 6  
7 7  
10 +
8 8  (% _mstvisible="1" %)
9 9  (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
10 10  
... ... @@ -272,7 +272,6 @@
272 272  [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
273 273  
274 274  
275 -
276 276  (% _mstvisible="1" %)
277 277  === (% _msthash="3537456" _msttexthash="3448549" _mstvisible="3" %)2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds.(%%) ===
278 278  
... ... @@ -283,7 +283,6 @@
283 283  [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
284 284  
285 285  
286 -
287 287  (% _mstvisible="1" %)
288 288  == (% _msthash="320879" _msttexthash="294970" _mstvisible="3" %)2.4 Uplink Payload(%%) ==
289 289  
... ... @@ -362,6 +362,7 @@
362 362  * The 7th byte (EXT #): defines the external sensor model.
363 363  * 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.)
364 364  
366 +
365 365  (% _mstvisible="1" %)
366 366  === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
367 367  
... ... @@ -398,6 +398,7 @@
398 398  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
399 399  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
400 400  
403 +
401 401  (% _mstvisible="1" %)
402 402  === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
403 403  
... ... @@ -413,6 +413,7 @@
413 413  (% _mstvisible="1" %)
414 414  * Temperature:  (0xF5C6-65536)/100=-26.18℃
415 415  
419 +
416 416  (% _mstvisible="1" %)
417 417  === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
418 418  
... ... @@ -589,8 +589,6 @@
589 589  * 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.
590 590  * 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)
591 591  
592 -
593 -
594 594  (% _mstvisible="1" %)
595 595  == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
596 596  
... ... @@ -653,9 +653,6 @@
653 653  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
654 654  1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover.
655 655  
656 -
657 -
658 -
659 659  (% _mstvisible="1" %)
660 660  === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
661 661  
... ... @@ -1131,14 +1131,10 @@
1131 1131  (((
1132 1132  (% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
1133 1133  For each success downlink, the PURPLE LED will blink once
1133 +)))
1134 1134  
1135 1135  
1136 1136  
1137 -
1138 -(% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
1139 -
1140 -)))
1141 -
1142 1142  (% _mstvisible="1" style="text-align: left;" %)
1143 1143  == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
1144 1144  
... ... @@ -1168,8 +1168,6 @@
1168 1168  * Working voltage 2.35v ~~ 5v
1169 1169  
1170 1170  
1171 -
1172 -
1173 1173  (% _mstvisible="1" style="text-align: left;" %)
1174 1174  = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1175 1175  
... ... @@ -1250,7 +1250,6 @@
1250 1250  (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1251 1251  These commands are only valid for LHT65N, as below:
1252 1252  
1253 -
1254 1254  (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1255 1255  
1256 1256  )))
... ... @@ -1377,7 +1377,6 @@
1377 1377  (% _mstvisible="1" %)
1378 1378  [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1379 1379  
1380 -
1381 1381  (% _mstvisible="1" style="text-align: left;" %)
1382 1382  (% style="color:#4f81bd" %)**Downlink Command:**
1383 1383  
... ... @@ -1386,8 +1386,6 @@
1386 1386  * 0xA801     **~-~->** AT+PID=1
1387 1387  
1388 1388  
1389 -
1390 -
1391 1391  (% _mstvisible="1" style="text-align: left;" %)
1392 1392  == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
1393 1393  
... ... @@ -1458,8 +1458,6 @@
1458 1458  * There is no downlink command to set to Sleep mode.
1459 1459  
1460 1460  
1461 -
1462 -
1463 1463  (% _mstvisible="1" %)
1464 1464  == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1465 1465  
... ... @@ -1595,8 +1595,6 @@
1595 1595  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1596 1596  
1597 1597  
1598 -
1599 -
1600 1600  (% _mstvisible="1" %)
1601 1601  == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1602 1602  
... ... @@ -1614,6 +1614,7 @@
1614 1614  (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 171px;" %)(% _msthash="1231737" _msttexthash="251862" _mstvisible="6" %)**Command Example**|=(% _mstvisible="4" style="width: 219px;" %)(% _msthash="1231738" _msttexthash="116025" _mstvisible="6" %)**Function**|=(% _mstvisible="4" style="width: 119px;" %)(% _msthash="1231739" _msttexthash="116831" _mstvisible="6" %)**Response**
1615 1615  (% _mstvisible="3" %)|(% _msthash="1231321" _msttexthash="130455" _mstvisible="4" style="width:171px" %)AT+PNACKMD=1|(% _msthash="1231322" _msttexthash="377026" _mstvisible="4" style="width:219px" %)Poll None-ACK message|(% _msthash="1231323" _msttexthash="14989" _mstvisible="4" style="width:119px" %)OK
1616 1616  
1602 +
1617 1617  (% _mstvisible="1" %)
1618 1618  (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1619 1619  
... ... @@ -1621,8 +1621,6 @@
1621 1621  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1622 1622  
1623 1623  
1624 -
1625 -
1626 1626  (% _mstvisible="1" %)
1627 1627  = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) =
1628 1628  
... ... @@ -1661,18 +1661,11 @@
1661 1661  (% _mstvisible="1" %)
1662 1662  (((
1663 1663  (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1664 -(((
1665 1665  Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life:
1666 1666  [[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]]
1667 -)))
1668 1668  
1669 -(((
1670 -
1671 -)))
1672 1672  
1673 -(((
1674 1674  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]]
1675 -)))
1676 1676  
1677 1677  
1678 1678  (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
... ... @@ -1681,31 +1681,34 @@
1681 1681  (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1682 1682  == 6.1 How to use AT Command? ==
1683 1683  
1684 -(((
1685 -LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to connect to LHT65 for using AT command, as below.
1686 -)))
1661 +LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to
1687 1687  
1663 +connect to LHT65 for using AT command, as below.
1664 +
1688 1688  [[image:image-20220530085651-1.png]]
1689 1689  
1690 1690  
1691 -**Connection:**
1668 +Connection:
1692 1692  
1693 -✓** USB to TTL GND <~-~->GND**
1670 +✓ USB to TTL GND <~-~->GND
1694 1694  
1695 -**✓ USB to TTL RXD <~-~-> D+**
1672 +✓ USB to TTL RXD <~-~-> D+
1696 1696  
1697 -**✓ USB to TTL TXD <~-~-> A11**
1674 +✓ USB to TTL TXD <~-~-> A11
1698 1698  
1699 -**✓ USB to TTL 3.3V <~-~-> D-**
1676 +✓ USB to TTL 3.3V <~-~-> D-
1700 1700  
1678 +In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to
1701 1701  
1702 -(((
1703 -In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:**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.
1704 -)))
1680 +access serial console for LHT65N. The AT commands are disable by default and need to enter
1705 1705  
1706 -(((
1682 +password (default:**123456**) to active it. Timeout to input AT Command is 5 min, after 5-minute,
1683 +
1684 +user need to input password again. User can use AT+DISAT command to disable AT command
1685 +
1686 +before timeout.
1687 +
1707 1707  Input password and ATZ to activate LHT65N,As shown below:
1708 -)))
1709 1709  
1710 1710  [[image:image-20220530095701-4.png]]
1711 1711  
... ... @@ -1712,161 +1712,138 @@
1712 1712  
1713 1713  AT Command List is as below:
1714 1714  
1715 -AT+<CMD>? :  Help on <CMD>
1695 +AT+<CMD>? : Help on <CMD>
1716 1716  
1717 -AT+<CMD> :  Run <CMD>
1697 +AT+<CMD> : Run <CMD>
1718 1718  
1719 -AT+<CMD>=<value> :  Set the value
1699 +AT+<CMD>=<value> : Set the value
1720 1720  
1721 -AT+<CMD>=? :  Get the value
1701 +AT+<CMD>=? : Get the value
1722 1722  
1723 -AT+DEBUG:  Set more info output
1703 +AT+DEBUG:Set more info output
1724 1724  
1725 -ATZ:  Trig a reset of the MCU
1705 +ATZ: Trig a reset of the MCU
1726 1726  
1727 -AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1707 +AT+FDR: Reset Parameters to Factory Default, Keys Reserve
1728 1728  
1729 -AT+DEUI:  Get or Set the Device EUI
1709 +AT+DEUI: Get or Set the Device EUI
1730 1730  
1731 -AT+DADDR:  Get or Set the Device Address
1711 +AT+DADDR: Get or Set the Device Address
1732 1732  
1733 -AT+APPKEY:  Get or Set the Application Key
1713 +AT+APPKEY: Get or Set the Application Key
1734 1734  
1735 -AT+NWKSKEY:  Get or Set the Network Session Key
1715 +AT+NWKSKEY: Get or Set the Network Session Key
1736 1736  
1737 -AT+APPSKEY:  Get or Set the Application Session Key
1717 +AT+APPSKEY: Get or Set the Application Session Key
1738 1738  
1739 -AT+APPEUI:  Get or Set the Application EUI
1719 +AT+APPEUI: Get or Set the Application EUI
1740 1740  
1741 -AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1721 +AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1742 1742  
1743 -AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1723 +AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1744 1744  
1745 -AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1725 +AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)
1746 1746  
1747 -AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1727 +AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1748 1748  
1749 -AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1729 +AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1750 1750  
1751 -AT+RX2FQ:  Get or Set the Rx2 window frequency
1731 +AT+RX2FQ: Get or Set the Rx2 window frequency
1752 1752  
1753 -AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1733 +AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1754 1754  
1755 -AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1735 +AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1756 1756  
1757 -AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1737 +AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1758 1758  
1759 -AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1739 +AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1
1760 1760  
1761 -AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1741 +in ms
1762 1762  
1763 -AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1743 +AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2
1764 1764  
1765 -AT+NWKID:  Get or Set the Network ID
1745 +in ms
1766 1766  
1767 -AT+FCU:  Get or Set the Frame Counter Uplink
1747 +AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1768 1768  
1769 -AT+FCD:  Get or Set the Frame Counter Downlink
1749 +AT+NWKID: Get or Set the Network ID
1770 1770  
1771 -AT+CLASS:  Get or Set the Device Class
1751 +AT+FCU: Get or Set the Frame Counter Uplink
1772 1772  
1773 -AT+JOIN:  Join network
1753 +AT+FCD: Get or Set the Frame Counter Downlink
1774 1774  
1775 -AT+NJS:  Get the join status
1755 +AT+CLASS: Get or Set the Device Class
1776 1776  
1777 -AT+SENDB:  Send hexadecimal data along with the application port
1757 +AT+JOIN: Join network
1778 1778  
1779 -AT+SEND:  Send text data along with the application port
1759 +AT+NJS: Get the join status
1780 1780  
1781 -AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1761 +AT+SENDB: Send hexadecimal data along with the application port
1782 1782  
1783 -AT+RECV:  Print last received data in raw format
1763 +AT+SEND: Send text data along with the application port
1784 1784  
1785 -AT+VER:  Get current image version and Frequency Band
1765 +AT+RECVB: Print last received data in binary format (with hexadecimal values)
1786 1786  
1787 -AT+CFM:  Get or Set the confirmation mode (0-1)
1767 +AT+RECV: Print last received data in raw format
1788 1788  
1789 -AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1769 +AT+VER: Get current image version and Frequency Band
1790 1790  
1791 -AT+SNR:  Get the SNR of the last received packet
1771 +AT+CFM: Get or Set the confirmation mode (0-1)
1792 1792  
1793 -AT+RSSI:  Get the RSSI of the last received packet
1773 +AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1794 1794  
1795 -AT+TDC:  Get or set the application data transmission interval in ms
1775 +AT+SNR: Get the SNR of the last received packet
1796 1796  
1797 -AT+PORT:  Get or set the application port
1777 +AT+RSSI: Get the RSSI of the last received packet
1798 1798  
1799 -AT+DISAT:  Disable AT commands
1779 +AT+TDC: Get or set the application data transmission interval in ms
1800 1800  
1801 -AT+PWORD:  Set password, max 9 digits
1781 +AT+PORT: Get or set the application port
1802 1802  
1803 -AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1783 +AT+DISAT: Disable AT commands
1804 1804  
1805 -AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1785 +AT+PWORD: Set password, max 9 digits
1806 1806  
1807 -AT+PDTA:  Print the sector data from start page to stop page
1787 +AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1808 1808  
1809 -AT+PLDTA:  Print the last few sets of data
1789 +AT+CHE: Get or Set eight channels mode,Only for US915,AU915,CN470
1810 1810  
1811 -AT+CLRDTA:  Clear the storage, record position back to 1st
1791 +AT+PDTA: Print the sector data from start page to stop page
1812 1812  
1813 -AT+SLEEP:  Set sleep mode
1793 +AT+PLDTA: Print the last few sets of data
1814 1814  
1815 -AT+EXT:  Get or Set external sensor model
1795 +AT+CLRDTA: Clear the storage, record position back to 1st
1816 1816  
1817 -AT+BAT:  Get the current battery voltage in mV
1797 +AT+SLEEP: Set sleep mode
1818 1818  
1819 -AT+CFG:  Print all configurations
1799 +AT+EXT: Get or Set external sensor model
1820 1820  
1821 -AT+WMOD:  Get or Set Work Mode
1801 +AT+BAT: Get the current battery voltage in mV
1822 1822  
1823 -AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1803 +AT+CFG: Print all configurations
1824 1824  
1825 -AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1805 +AT+WMOD: Get or Set Work Mode
1826 1826  
1827 -AT+SETCNT:  Set the count at present
1807 +AT+ARTEMP: Get or set the internal Temperature sensor alarm range
1828 1828  
1829 -AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1809 +AT+CITEMP: Get or set the internal Temperature sensor collection interval in min
1830 1830  
1831 -AT+RPL:  Get or set response level
1811 +AT+SETCNT:Set the count at present
1832 1832  
1833 -AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1813 +AT+RJTDC: Get or set the ReJoin data transmission interval in min
1834 1834  
1835 -AT+LEAPSEC:  Get or Set Leap Second
1815 +AT+RPL: Get or set response level
1836 1836  
1837 -AT+SYNCMOD:  Get or Set time synchronization method
1817 +AT+TIMESTAMP: Get or Set UNIX timestamp in second
1838 1838  
1839 -AT+SYNCTDC:  Get or set time synchronization interval in day
1819 +AT+LEAPSEC: Get or Set Leap Second
1840 1840  
1841 -AT+PID:  Get or set the PID
1821 +AT+SYNCMOD: Get or Set time synchronization method
1842 1842  
1823 +AT+SYNCTDC: Get or set time synchronization interval in day
1843 1843  
1844 -== 6.2 Where to use AT commands and Downlink commands ==
1825 +AT+PID: Get or set the PID
1845 1845  
1846 -AT commands：
1847 -
1848 -[[image:image-20220615092034-1.png]]
1849 -
1850 -Downlink commands:
1851 -
1852 -TTN:
1853 -
1854 -[[image:image-20220615092124-2.png]]
1855 -
1856 -Helium：
1857 -
1858 -[[image:image-20220615092551-3.png]]
1859 -
1860 -Chirpstack:The downlink window will not be displayed until the network is accessed
1861 -
1862 -[[image:image-20220615094850-6.png]]
1863 -
1864 -[[image:image-20220615094904-7.png]]
1865 -
1866 -Aws:
1867 -
1868 -[[image:image-20220615092939-4.png]]
1869 -
1870 1870  
1871 1871  )))
1872 1872  
... ... @@ -1950,9 +1950,6 @@
1950 1950  (% _mstvisible="1" %)
1951 1951  (((
1952 1952  (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1953 -
1954 -
1955 -(% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1956 1956  (% _mstvisible="3" %)**Package Includes**(%%):
1957 1957  )))
1958 1958  
... ... @@ -1999,10 +1999,6 @@
1999 1999  (((
2000 2000  (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
2001 2001  Weight / pcs : 170g
2002 -
2003 -
2004 -(% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
2005 -
2006 2006  )))
2007 2007  
2008 2008  = 9. Reference =
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2009 2009  
2010 2010  * [[Datasheet, Photos, Decoder, Firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor]]
2011 2011  
2012 -
2013 2013  = 10. FCC Warning =
2014 2014  
2015 2015  (% _mstvisible="1" %)
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