Last modified by Mengting Qiu on 2024/04/30 14:27
<
From version < 120.10 >
edited by Xiaoling
on 2022/06/09 18:30
To version < 119.22 >
edited by Xiaoling
on 2022/06/09 18:22
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -77,6 +77,7 @@
77 77  * Tri-color LED to indicate working status
78 78  * Datalog feature
79 79  
80 +
80 80  (% _mstvisible="1" %)
81 81  == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) ==
82 82  
... ... @@ -363,6 +363,8 @@
363 363  * The 7th byte (EXT #): defines the external sensor model.
364 364  * 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.)
365 365  
367 +
368 +
366 366  (% _mstvisible="1" %)
367 367  === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
368 368  
... ... @@ -399,6 +399,8 @@
399 399  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
400 400  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
401 401  
405 +
406 +
402 402  (% _mstvisible="1" %)
403 403  === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
404 404  
... ... @@ -414,6 +414,8 @@
414 414  (% _mstvisible="1" %)
415 415  * Temperature:  (0xF5C6-65536)/100=-26.18℃
416 416  
422 +
423 +
417 417  (% _mstvisible="1" %)
418 418  === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
419 419  
... ... @@ -423,6 +423,7 @@
423 423  (% _mstvisible="1" %)
424 424  * Humidity:    0x025C/10=60.4%
425 425  
433 +
426 426  (% _mstvisible="1" %)
427 427  === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
428 428  
... ... @@ -593,7 +593,6 @@
593 593  * 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)
594 594  
595 595  
596 -
597 597  (% _mstvisible="1" %)
598 598  == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
599 599  
... ... @@ -657,7 +657,6 @@
657 657  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.
658 658  
659 659  
660 -
661 661  (% _mstvisible="1" %)
662 662  === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
663 663  
... ... @@ -911,6 +911,7 @@
911 911  )))
912 912  )))
913 913  
920 +
914 914  (% _mstvisible="1" %)
915 915  (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
916 916  
... ... @@ -1136,6 +1136,8 @@
1136 1136  )))
1137 1137  
1138 1138  
1146 +
1147 +
1139 1139  (% _mstvisible="1" style="text-align: left;" %)
1140 1140  == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
1141 1141  
... ... @@ -1257,7 +1257,7 @@
1257 1257  Feature: Change LoRaWAN End Node Transmit Interval.
1258 1258  
1259 1259  (% _mstvisible="1" style="text-align: left;" %)
1260 -(% style="color:#4f81bd" %)**AT Command: AT+TDC**
1269 +(% _msthash="315356" _msttexthash="241696" _mstvisible="3" %)**(% style="color:#4F81BD" %)AT Command: AT+TDC**
1261 1261  
1262 1262  (% _mstvisible="1" %)
1263 1263  [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
... ... @@ -1268,7 +1268,7 @@
1268 1268  
1269 1269  
1270 1270  (% _mstvisible="2" style="text-align: left;" %)
1271 -(% style="color:#4f81bd" %)**Downlink Command: 0x01**
1280 +(% _msthash="506255" _msttexthash="381992" _mstvisible="4" %)**(% style="color:#4F81BD" %)Downlink Command: 0x01**
1272 1272  )))
1273 1273  
1274 1274  (% _mstvisible="1" %)
... ... @@ -1306,7 +1306,7 @@
1306 1306  Feature: Change External Sensor Mode.
1307 1307  
1308 1308  (% _mstvisible="1" style="text-align: left;" %)
1309 -(% style="color:#4f81bd" %)**AT Command: AT+EXT**
1318 +(% _msthash="315358" _msttexthash="248118" _mstvisible="3" %)**(% style="color:#4F81BD" %)AT Command: AT+EXT**
1310 1310  
1311 1311  (% _mstvisible="1" %)
1312 1312  [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
... ... @@ -1317,7 +1317,7 @@
1317 1317  
1318 1318  
1319 1319  (% _mstvisible="2" style="text-align: left;" %)
1320 -(% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1329 +(% _msthash="506258" _msttexthash="387855" _mstvisible="4" %)**(% style="color:#4F81BD" %)Downlink Command: 0xA2**
1321 1321  )))
1322 1322  
1323 1323  (% _mstvisible="1" %)
... ... @@ -1367,14 +1367,13 @@
1367 1367  PID is default set to disable (0)
1368 1368  
1369 1369  (% _mstvisible="1" style="text-align: left;" %)
1370 -(% style="color:#4f81bd" %)**AT Command:**
1379 +(% _msthash="315361" _msttexthash="137488" _mstvisible="3" %)**(% style="color:#4F81BD" %)AT Command:**
1371 1371  
1372 1372  (% _mstvisible="1" %)
1373 1373  [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1374 1374  
1375 -
1376 1376  (% _mstvisible="1" style="text-align: left;" %)
1377 -(% style="color:#4f81bd" %)**Downlink Command:**
1385 +(% _msthash="315362" _msttexthash="298038" _mstvisible="3" %)**(% style="color:#4F81BD" %)Downlink Command:**
1378 1378  
1379 1379  (% _mstvisible="1" %)
1380 1380  * 0xA800  **~-~->** AT+PID=0
... ... @@ -1389,7 +1389,7 @@
1389 1389  Feature: Set device password, max 9 digits
1390 1390  
1391 1391  (% _mstvisible="1" style="text-align: left;" %)
1392 -(% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1400 +(% _msthash="315364" _msttexthash="295009" _mstvisible="3" %)**(% style="color:#4F81BD" %)AT Command: AT+PWORD**
1393 1393  
1394 1394  (% _mstvisible="1" %)
1395 1395  [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
... ... @@ -1400,7 +1400,7 @@
1400 1400  
1401 1401  
1402 1402  (% _mstvisible="2" style="text-align: left;" %)
1403 -(% style="color:#4f81bd" %)**Downlink Command:**
1411 +(% _msthash="506261" _msttexthash="298038" _mstvisible="4" %)**(% style="color:#4F81BD" %)Downlink Command:**
1404 1404  )))
1405 1405  
1406 1406  (% _mstvisible="1" %)
... ... @@ -1419,7 +1419,7 @@
1419 1419  Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1420 1420  
1421 1421  (% _mstvisible="1" style="text-align: left;" %)
1422 -(% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1430 +(% _msthash="315366" _msttexthash="289120" _mstvisible="3" %)**(% style="color:#4F81BD" %)AT Command: AT+DISAT**
1423 1423  
1424 1424  (% _mstvisible="1" %)
1425 1425  [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
... ... @@ -1426,7 +1426,7 @@
1426 1426  
1427 1427  
1428 1428  (% _mstvisible="1" style="text-align: left;" %)
1429 -(% style="color:#4f81bd" %)**Downlink Command:**
1437 +(% _msthash="315367" _msttexthash="298038" _mstvisible="3" %)**(% style="color:#4F81BD" %)Downlink Command:**
1430 1430  
1431 1431  (% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %)
1432 1432  No downlink command for this feature.
... ... @@ -1439,7 +1439,7 @@
1439 1439  Feature: Set device to sleep mode
1440 1440  
1441 1441  (% _mstvisible="1" style="text-align: left;" %)
1442 -(% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1450 +(% _msthash="315370" _msttexthash="289783" _mstvisible="3" %)**(% style="color:#4F81BD" %)AT Command: AT+SLEEP**
1443 1443  
1444 1444  (% _mstvisible="1" %)
1445 1445  [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
... ... @@ -1446,7 +1446,7 @@
1446 1446  
1447 1447  
1448 1448  (% _mstvisible="1" %)
1449 -(% style="color:#4f81bd" %)**Downlink Command:**
1457 +(% _msthash="315371" _msttexthash="298038" _mstvisible="3" %)**(% style="color:#4F81BD" %)Downlink Command:**
1450 1450  
1451 1451  (% _mstvisible="1" %)
1452 1452  * There is no downlink command to set to Sleep mode.
... ... @@ -1460,7 +1460,7 @@
1460 1460  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1461 1461  
1462 1462  (% _mstvisible="1" %)
1463 -(% style="color:#4f81bd" %)**AT Command:**
1471 +(% _msthash="315373" _msttexthash="137488" _mstvisible="3" %)**(% style="color:#4F81BD" %)AT Command:**
1464 1464  
1465 1465  (% _mstvisible="1" %)
1466 1466  [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
... ... @@ -1467,7 +1467,7 @@
1467 1467  
1468 1468  
1469 1469  (% _mstvisible="1" %)
1470 -(% style="color:#4f81bd" %)**Downlink Command:**
1478 +(% _msthash="315374" _msttexthash="298038" _mstvisible="3" %)**(% style="color:#4F81BD" %)Downlink Command:**
1471 1471  
1472 1472  (% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %)
1473 1473  0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
... ... @@ -1491,7 +1491,7 @@
1491 1491  (% _mstvisible="1" %)
1492 1492  (((
1493 1493  (% _mstvisible="2" %)
1494 -(% style="color:#4f81bd" %)**AT Command:**
1502 +(% _msthash="506265" _msttexthash="137488" _mstvisible="4" %)**(% style="color:#4F81BD" %)AT Command:**
1495 1495  )))
1496 1496  
1497 1497  (% _mstvisible="1" %)
... ... @@ -1499,7 +1499,7 @@
1499 1499  
1500 1500  
1501 1501  (% _mstvisible="1" %)
1502 -(% style="color:#4f81bd" %)**Downlink Command:**
1510 +(% _msthash="315376" _msttexthash="298038" _mstvisible="3" %)**(% style="color:#4F81BD" %)Downlink Command:**
1503 1503  
1504 1504  (% _msthash="315377" _msttexthash="479648" _mstvisible="1" %)
1505 1505  0x28 01 ~/~/ Same As AT+SYNCMOD=1
... ... @@ -1515,7 +1515,7 @@
1515 1515  Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1516 1516  
1517 1517  (% _mstvisible="1" %)
1518 -(% style="color:#4f81bd" %)**AT Command:**
1526 +(% _msthash="315380" _msttexthash="137488" _mstvisible="3" %)**(% style="color:#4F81BD" %)AT Command:**
1519 1519  
1520 1520  (% _mstvisible="1" %)
1521 1521  [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
... ... @@ -1522,7 +1522,7 @@
1522 1522  
1523 1523  
1524 1524  (% _mstvisible="1" %)
1525 -(% style="color:#4f81bd" %)**Downlink Command:**
1533 +(% _msthash="315381" _msttexthash="298038" _mstvisible="3" %)**(% style="color:#4F81BD" %)Downlink Command:**
1526 1526  
1527 1527  (% _msthash="315382" _msttexthash="590044" _mstvisible="1" %)
1528 1528  0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
... ... @@ -1535,7 +1535,7 @@
1535 1535  Feature: Print the sector data from start page to stop page (max is 416 pages).
1536 1536  
1537 1537  (% _mstvisible="1" %)
1538 -(% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1546 +(% _msthash="315384" _msttexthash="264953" _mstvisible="3" %)**(% style="color:#4F81BD" %)AT Command: AT+PDTA**
1539 1539  
1540 1540  (% _mstvisible="1" %)
1541 1541  [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
... ... @@ -1542,7 +1542,7 @@
1542 1542  
1543 1543  
1544 1544  (% _mstvisible="1" %)
1545 -(% style="color:#4f81bd" %)**Downlink Command:**
1553 +(% _msthash="315385" _msttexthash="298038" _mstvisible="3" %)**(% style="color:#4F81BD" %)Downlink Command:**
1546 1546  
1547 1547  (% _msthash="315386" _msttexthash="799539" _mstvisible="1" %)
1548 1548  No downlink commands for feature
... ... @@ -1555,7 +1555,7 @@
1555 1555  Feature: Print the last few data entries
1556 1556  
1557 1557  (% _mstvisible="1" %)
1558 -(% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1566 +(% _msthash="315388" _msttexthash="288522" _mstvisible="3" %)**(% style="color:#4F81BD" %)AT Command: AT+PLDTA**
1559 1559  
1560 1560  (% _mstvisible="1" %)
1561 1561  [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
... ... @@ -1562,7 +1562,7 @@
1562 1562  
1563 1563  
1564 1564  (% _mstvisible="1" %)
1565 -(% style="color:#4f81bd" %)**Downlink Command:**
1573 +(% _msthash="315389" _msttexthash="298038" _mstvisible="3" %)**(% style="color:#4F81BD" %)Downlink Command:**
1566 1566  
1567 1567  (% _msthash="315390" _msttexthash="799539" _mstvisible="1" %)
1568 1568  No downlink commands for feature
... ... @@ -1575,7 +1575,7 @@
1575 1575  Feature: Clear flash storage for data log feature.
1576 1576  
1577 1577  (% _mstvisible="1" %)
1578 -(% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1586 +(% _msthash="315392" _msttexthash="311415" _mstvisible="3" %)**(% style="color:#4F81BD" %)AT Command: AT+CLRDTA**
1579 1579  
1580 1580  (% _mstvisible="1" %)
1581 1581  [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
... ... @@ -1582,7 +1582,7 @@
1582 1582  
1583 1583  
1584 1584  (% _mstvisible="1" %)
1585 -(% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1593 +(% _msthash="315393" _msttexthash="388193" _mstvisible="3" %)**(% style="color:#4F81BD" %)Downlink Command: 0xA3**
1586 1586  
1587 1587  (% _mstvisible="1" %)
1588 1588  * Example: 0xA301 ~/~/Same as AT+CLRDTA
... ... @@ -1597,7 +1597,7 @@
1597 1597  
1598 1598  
1599 1599  (% _mstvisible="1" %)
1600 -(% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1608 +(% _msthash="315395" _msttexthash="334256" _mstvisible="3" %)**(% style="color:#4F81BD" %)AT Command: AT+PNACKMD**
1601 1601  
1602 1602  (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1603 1603  The default factory setting is 0
... ... @@ -1606,8 +1606,9 @@
1606 1606  (% _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**
1607 1607  (% _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
1608 1608  
1617 +
1609 1609  (% _mstvisible="1" %)
1610 -(% style="color:#4f81bd" %)**Downlink Command: 0x34**
1619 +(% _msthash="315397" _msttexthash="383981" _mstvisible="3" %)**(% style="color:#4F81BD" %)Downlink Command: 0x34**
1611 1611  
1612 1612  (% _mstvisible="1" %)
1613 1613  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
... ... @@ -1652,18 +1652,11 @@
1652 1652  (% _mstvisible="1" %)
1653 1653  (((
1654 1654  (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1655 -(((
1656 1656  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:
1657 1657  [[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]]
1658 -)))
1659 1659  
1660 -(((
1661 -
1662 -)))
1663 1663  
1664 -(((
1665 1665  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]]
1666 -)))
1667 1667  
1668 1668  
1669 1669  (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
... ... @@ -1672,31 +1672,34 @@
1672 1672  (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1673 1673  == 6.1 How to use AT Command? ==
1674 1674  
1675 -(((
1676 -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.
1677 -)))
1677 +LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to
1678 1678  
1679 +connect to LHT65 for using AT command, as below.
1680 +
1679 1679  [[image:image-20220530085651-1.png]]
1680 1680  
1681 1681  
1682 -**Connection:**
1684 +Connection:
1683 1683  
1684 -✓** USB to TTL GND <~-~->GND**
1686 +✓ USB to TTL GND <~-~->GND
1685 1685  
1686 -**✓ USB to TTL RXD <~-~-> D+**
1688 +✓ USB to TTL RXD <~-~-> D+
1687 1687  
1688 -**✓ USB to TTL TXD <~-~-> A11**
1690 +✓ USB to TTL TXD <~-~-> A11
1689 1689  
1690 -**✓ USB to TTL 3.3V <~-~-> D-**
1692 +✓ USB to TTL 3.3V <~-~-> D-
1691 1691  
1694 +In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to
1692 1692  
1693 -(((
1694 -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.
1695 -)))
1696 +access serial console for LHT65N. The AT commands are disable by default and need to enter
1696 1696  
1697 -(((
1698 +password (default:**123456**) to active it. Timeout to input AT Command is 5 min, after 5-minute,
1699 +
1700 +user need to input password again. User can use AT+DISAT command to disable AT command
1701 +
1702 +before timeout.
1703 +
1698 1698  Input password and ATZ to activate LHT65N,As shown below:
1699 -)))
1700 1700  
1701 1701  [[image:image-20220530095701-4.png]]
1702 1702  
... ... @@ -1747,10 +1747,14 @@
1747 1747  
1748 1748  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1749 1749  
1750 -AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1755 +AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1
1751 1751  
1752 -AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1757 +in ms
1753 1753  
1759 +AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2
1760 +
1761 +in ms
1762 +
1754 1754  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1755 1755  
1756 1756  AT+NWKID: Get or Set the Network ID
... ... @@ -1914,9 +1914,6 @@
1914 1914  (% _mstvisible="1" %)
1915 1915  (((
1916 1916  (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1917 -
1918 -
1919 -(% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1920 1920  (% _mstvisible="3" %)**Package Includes**(%%):
1921 1921  )))
1922 1922  
... ... @@ -1963,10 +1963,6 @@
1963 1963  (((
1964 1964  (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
1965 1965  Weight / pcs : 170g
1966 -
1967 -
1968 -(% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
1969 -
1970 1970  )))
1971 1971  
1972 1972  = 9. Reference =
... ... @@ -1973,7 +1973,6 @@
1973 1973  
1974 1974  * [[Datasheet, Photos, Decoder, Firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor]]
1975 1975  
1976 -
1977 1977  = 10. FCC Warning =
1978 1978  
1979 1979  (% _mstvisible="1" %)

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