Last modified by Saxer Lin on 2025/04/15 17:24
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From version < 66.20 >
edited by Xiaoling
on 2022/05/24 13:53
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... ... @@ -199,13 +199,21 @@
199 199  
200 200  == 3.1 How it works? ==
201 201  
202 +(((
202 202  The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on **TX LED** will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. **TX LED** will be on for 5 seconds after joined in network. When there is message from server, the **RX LED** will be on for 1 second. 
204 +)))
203 203  
206 +(((
204 204  In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H4.UseATCommand]] to set the keys in the devices.
208 +)))
205 205  
210 +(((
206 206  3.2 Example to join LoRaWAN network
212 +)))
207 207  
214 +(((
208 208  This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network structure, we use our LG308 as LoRaWAN gateway here. 
216 +)))
209 209  
210 210  [[image:image-20220523172350-1.png||height="266" width="864"]]
211 211  
... ... @@ -305,7 +305,9 @@
305 305  
306 306  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
307 307  
316 +(((
308 308  Total : 11 bytes payload
318 +)))
309 309  
310 310  [[image:image-20220523180452-3.png]]
311 311  
... ... @@ -319,53 +319,77 @@
319 319  * FIRST: Indicate this is the first packet after join network.
320 320  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
321 321  
332 +(((
322 322  (% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
334 +)))
323 323  
336 +(((
324 324  **To use counting mode, please run:**
338 +)))
325 325  
326 326  (% class="box infomessage" %)
327 327  (((
342 +(((
328 328  **AT+MOD=2**
329 329  )))
345 +)))
330 330  
331 331  (% class="box infomessage" %)
332 332  (((
349 +(((
333 333  **ATZ**
334 334  )))
352 +)))
335 335  
354 +(((
336 336  (% style="color:#4f81bd" %)**AT Commands for counting:**
356 +)))
337 337  
358 +(((
338 338  **For LT22222-L:**
360 +)))
339 339  
340 340  (% class="box infomessage" %)
341 341  (((
364 +(((
342 342  **AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
343 343  )))
367 +)))
344 344  
345 345  (% class="box infomessage" %)
346 346  (((
371 +(((
347 347  **AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
348 348  )))
374 +)))
349 349  
350 350  (% class="box infomessage" %)
351 351  (((
378 +(((
352 352  **AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
353 353  )))
381 +)))
354 354  
355 355  (% class="box infomessage" %)
356 356  (((
385 +(((
357 357  **AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
358 358  )))
388 +)))
359 359  
360 360  (% class="box infomessage" %)
361 361  (((
392 +(((
362 362  **AT+SETCNT=1,60   (Set COUNT1 value to 60)**
363 363  )))
395 +)))
364 364  
365 365  (% class="box infomessage" %)
366 366  (((
399 +(((
367 367  **AT+SETCNT=2,60   (Set COUNT2 value to 60)**
368 368  )))
402 +)))
369 369  
370 370  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
371 371  
... ... @@ -383,21 +383,31 @@
383 383  * FIRST: Indicate this is the first packet after join network.
384 384  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
385 385  
420 +(((
386 386  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
422 +)))
387 387  
424 +(((
388 388  **To use counting mode, please run:**
426 +)))
389 389  
390 390  (% class="box infomessage" %)
391 391  (((
430 +(((
392 392  **AT+MOD=3**
393 393  )))
433 +)))
394 394  
395 395  (% class="box infomessage" %)
396 396  (((
437 +(((
397 397  **ATZ**
398 398  )))
440 +)))
399 399  
442 +(((
400 400  Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.2AT2BMOD3D22C28DoubleDICounting29]].
444 +)))
401 401  
402 402  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
403 403  
... ... @@ -417,44 +417,67 @@
417 417  * FIRST: Indicate this is the first packet after join network.
418 418  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
419 419  
464 +(((
420 420  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
466 +)))
421 421  
468 +(((
422 422  **To use this mode, please run:**
470 +)))
423 423  
424 424  (% class="box infomessage" %)
425 425  (((
474 +(((
426 426  **AT+MOD=4**
427 427  )))
477 +)))
428 428  
429 429  (% class="box infomessage" %)
430 430  (((
481 +(((
431 431  **ATZ**
432 432  )))
484 +)))
433 433  
486 +(((
487 +
488 +)))
434 434  
490 +(((
435 435  Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.2AT2BMOD3D22C28DoubleDICounting29]].
492 +)))
436 436  
494 +(((
437 437  **Plus below command for AVI1 Counting:**
496 +)))
438 438  
439 439  (% class="box infomessage" %)
440 440  (((
500 +(((
441 441  **AT+SETCNT=3,60   (set AVI Count to 60)**
442 442  )))
503 +)))
443 443  
444 444  (% class="box infomessage" %)
445 445  (((
507 +(((
446 446  **AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
447 447  )))
510 +)))
448 448  
449 449  (% class="box infomessage" %)
450 450  (((
514 +(((
451 451  **AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
452 452  )))
517 +)))
453 453  
454 454  (% class="box infomessage" %)
455 455  (((
521 +(((
456 456  **AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
457 457  )))
524 +)))
458 458  
459 459  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
460 460  
... ... @@ -468,23 +468,35 @@
468 468  
469 469  * RO is for relay. ROx=1 : close，ROx=0 always open.
470 470  * FIRST: Indicate this is the first packet after join network.
471 -* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
538 +* (((
539 +DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
540 +)))
472 472  
542 +(((
473 473  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
544 +)))
474 474  
546 +(((
475 475  **To use this mode, please run:**
548 +)))
476 476  
477 477  (% class="box infomessage" %)
478 478  (((
552 +(((
479 479  **AT+MOD=5**
480 480  )))
555 +)))
481 481  
482 482  (% class="box infomessage" %)
483 483  (((
559 +(((
484 484  **ATZ**
485 485  )))
562 +)))
486 486  
564 +(((
487 487  Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.2AT2BMOD3D22C28DoubleDICounting29]].
566 +)))
488 488  
489 489  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
490 490  
... ... @@ -892,8 +892,10 @@
892 892  
893 893  (% class="box infomessage" %)
894 894  (((
974 +(((
895 895  **0xA9 aa bb cc     ~/~/ Set DO1/DO2/DO3 output with time control**
896 896  )))
977 +)))
897 897  
898 898  This is to control the digital output time of DO pin. Include four bytes:
899 899  
... ... @@ -1110,7 +1110,6 @@
1110 1110  
1111 1111  [[image:image-20220524094641-11.png||height="390" width="723"]]
1112 1112  
1113 -
1114 1114  [[image:image-20220524094641-12.png||height="402" width="718"]]
1115 1115  
1116 1116  **Step 3**: Create an account or log in Mydevices.
... ... @@ -1169,7 +1169,7 @@
1169 1169  
1170 1170  So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1171 1171  
1172 - //IF// = DI1+ / 1K.
1252 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]] = DI1+ / 1K.**
1173 1173  
1174 1174  If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1175 1175  
... ... @@ -1183,9 +1183,9 @@
1183 1183  
1184 1184  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1185 1185  
1186 -[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1266 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1187 1187  
1188 -If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1268 +If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1189 1189  
1190 1190  
1191 1191  **Example3**: Connect to a 220v high active sensor.
... ... @@ -1197,7 +1197,7 @@
1197 1197  
1198 1198  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1199 1199  
1200 - [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1280 + [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1201 1201  
1202 1202  If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1203 1203  
... ... @@ -1256,7 +1256,9 @@
1256 1256  
1257 1257  [[image:1653358238933-385.png]]
1258 1258  
1339 +(((
1259 1259  In PC, User needs to set (% style="color:#4f81bd" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**)(%%) to active it. As shown below:
1341 +)))
1260 1260  
1261 1261  [[image:1653358355238-883.png]]
1262 1262  
... ... @@ -1578,11 +1578,13 @@
1578 1578  Below shows the hardware connection for how to upload an image to the LT:
1579 1579  * [[image:1653359603330-121.png]]
1580 1580  
1663 +(((
1581 1581  **Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1582 1582  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1583 1583  **Step3: **Open flashloader; choose the correct COM port to update.
1584 1584  **For LT-22222-L**:
1585 1585  Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
1669 +)))
1586 1586  
1587 1587   [[image:image-20220524103407-12.png]]
1588 1588  
... ... @@ -1628,10 +1628,15 @@
1628 1628  [[image:1653360231087-571.png||height="401" width="727"]]
1629 1629  )))
1630 1630  
1715 +(((
1631 1631  (% style="color:red" %)Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.
1717 +)))
1632 1632  
1719 +(((
1633 1633  (% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1721 +)))
1634 1634  
1723 +(((
1635 1635  (% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1636 1636  (% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1637 1637  (% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
... ... @@ -1642,8 +1642,11 @@
1642 1642  (% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1643 1643  (% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1644 1644  (% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1734 +)))
1645 1645  
1736 +(((
1646 1646  As shown in below:
1738 +)))
1647 1647  
1648 1648  [[image:1653360498588-932.png||height="485" width="726"]]
1649 1649  

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