Changes for page LT-22222-L -- LoRa I/O Controller User Manual

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Content

...	...	@@ -11,15 +11,12 @@
11	11
12	12
13	13
14		-
15		-
16		-
17	17	= 1.Introduction =
18	18
19	19	== 1.1 What is LT Series I/O Controller ==
20	20
21	21	(((
22		-The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
	19	+The Dragino LT series I/O Modules are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as: analog current Input, analog voltage input, relay output, digital input and digital output etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
23	23	)))
24	24
25	25	(((
...	...	@@ -27,7 +27,7 @@
27	27	)))
28	28
29	29	(((
30		-The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
	27	+The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using LoRaWAN wireless technology.
31	31	)))
32	32
33	33	(((
...	...	@@ -44,128 +44,48 @@
44	44
45	45	(((
46	46	[[image:1653295757274-912.png]]
47		-
48		-
49	49	)))
50	50
51	51	== 1.2  Specifications ==
52	52
53		-(((
54		-
55		-
56	56	**Hardware System:**
57		-)))
58	58
59		-* (((
60		-STM32L072CZT6 MCU
61		-)))
62		-* (((
63		-SX1276/78 Wireless Chip
64		-)))
65		-* (((
66		-(((
67		-Power Consumption:
68		-)))
	50	+* STM32L072CZT6 MCU
	51	+* SX1276/78 Wireless Chip
	52	+* Power Consumption:
	53	+** Idle: 4mA@12v
	54	+** 20dB Transmit: 34mA@12v
69	69
70		-* (((
71		-Idle: 4mA@12v
72		-)))
73		-* (((
74		-20dB Transmit: 34mA@12v
75		-)))
76		-)))
77		-
78		-
79		-(((
80	80	**Interface for Model: LT22222-L:**
81		-)))
82	82
83		-* (((
84		-2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
85		-)))
86		-* (((
87		-2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
88		-)))
89		-* (((
90		-2 x Relay Output (5A@250VAC / 30VDC)
91		-)))
92		-* (((
93		-2 x 0~~20mA Analog Input (res:0.01mA)
94		-)))
95		-* (((
96		-2 x 0~~30V Analog Input (res:0.01v)
97		-)))
98		-* (((
99		-Power Input 7~~ 24V DC.
100		-)))
	58	+* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
	59	+* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
	60	+* 2 x Relay Output (5A@250VAC / 30VDC)
	61	+* 2 x 0~~20mA Analog Input (res:0.01mA)
	62	+* 2 x 0~~30V Analog Input (res:0.01v)
	63	+* Power Input 7~~ 24V DC.
101	101
102		-
103		-(((
104	104	**LoRa Spec:**
105		-)))
106	106
107		-* (((
108		-(((
109		-Frequency Range:
110		-)))
	67	+* Frequency Range:
	68	+** Band 1 (HF): 862 ~~ 1020 Mhz
	69	+** Band 2 (LF): 410 ~~ 528 Mhz
	70	+* 168 dB maximum link budget.
	71	+* +20 dBm - 100 mW constant RF output vs.
	72	+* +14 dBm high efficiency PA.
	73	+* Programmable bit rate up to 300 kbps.
	74	+* High sensitivity: down to -148 dBm.
	75	+* Bullet-proof front end: IIP3 = -12.5 dBm.
	76	+* Excellent blocking immunity.
	77	+* Low RX current of 10.3 mA, 200 nA register retention.
	78	+* Fully integrated synthesizer with a resolution of 61 Hz.
	79	+* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
	80	+* Built-in bit synchronizer for clock recovery.
	81	+* Preamble detection.
	82	+* 127 dB Dynamic Range RSSI.
	83	+* Automatic RF Sense and CAD with ultra-fast AFC.
	84	+* Packet engine up to 256 bytes with CRC.
111	111
112		-* (((
113		-Band 1 (HF): 862 ~~ 1020 Mhz
114		-)))
115		-* (((
116		-Band 2 (LF): 410 ~~ 528 Mhz
117		-)))
118		-)))
119		-* (((
120		-168 dB maximum link budget.
121		-)))
122		-* (((
123		-+20 dBm - 100 mW constant RF output vs.
124		-)))
125		-* (((
126		-+14 dBm high efficiency PA.
127		-)))
128		-* (((
129		-Programmable bit rate up to 300 kbps.
130		-)))
131		-* (((
132		-High sensitivity: down to -148 dBm.
133		-)))
134		-* (((
135		-Bullet-proof front end: IIP3 = -12.5 dBm.
136		-)))
137		-* (((
138		-Excellent blocking immunity.
139		-)))
140		-* (((
141		-Low RX current of 10.3 mA, 200 nA register retention.
142		-)))
143		-* (((
144		-Fully integrated synthesizer with a resolution of 61 Hz.
145		-)))
146		-* (((
147		-FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
148		-)))
149		-* (((
150		-Built-in bit synchronizer for clock recovery.
151		-)))
152		-* (((
153		-Preamble detection.
154		-)))
155		-* (((
156		-127 dB Dynamic Range RSSI.
157		-)))
158		-* (((
159		-Automatic RF Sense and CAD with ultra-fast AFC.
160		-)))
161		-* (((
162		-Packet engine up to 256 bytes with CRC.
163		-
164		-
165		-)))
166		-
167		-
168		-
169	169	== 1.3 Features ==
170	170
171	171	* LoRaWAN Class A & Class C protocol
...	...	@@ -176,8 +176,6 @@
176	176	* Firmware upgradable via program port
177	177	* Counting
178	178
179		-
180		-
181	181	== 1.4  Applications ==
182	182
183	183	* Smart Buildings & Home Automation
...	...	@@ -187,8 +187,6 @@
187	187	* Smart Cities
188	188	* Smart Factory
189	189
190		-
191		-
192	192	== 1.5 Hardware Variants ==
193	193
194	194	(% border="1" style="background-color:#f7faff; width:500px" %)
...	...	@@ -202,8 +202,6 @@
202	202	* 1 x Counting Port
203	203	)))
204	204
205		-
206		-
207	207	= 2. Power ON Device =
208	208
209	209	The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
...	...	@@ -214,32 +214,21 @@
214	214
215	215	[[image:1653297104069-180.png]]
216	216
217		-
218		-
219	219	= 3. Operation Mode =
220	220
221	221	== 3.1 How it works? ==
222	222
223		-(((
224	224	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.
225		-)))
226	226
227		-(((
228		-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>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
	134	+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:#AT_Command]] to set the keys in the devices.
229	229
230		-
231		-)))
	136	+3.2 Example to join LoRaWAN network
232	232
233		-
234		-
235		-== 3.2 Example to join LoRaWAN network ==
236		-
237		-(((
238	238	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.
239		-)))
240	240
241	241	[[image:image-20220523172350-1.png||height="266" width="864"]]
242	242
	142	+
243	243	(((
244	244	The LG308 is already set to connect to [[TTN network >>url:https://www.thethingsnetwork.org/]]. So what we need to do now is only configure register this device to TTN:
245	245	)))
...	...	@@ -260,12 +260,10 @@
260	260
261	261	[[image:1653297955910-247.png||height="321" width="716"]]
262	262
263		-
264	264	Add APP KEY and DEV EUI
265	265
266	266	[[image:1653298023685-319.png]]
267	267
268		-
269	269	(((
270	270	**Step 2**: Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
271	271	)))
...	...	@@ -272,8 +272,6 @@
272	272
273	273	[[image:1653298044601-602.png||height="405" width="709"]]
274	274
275		-
276		-
277	277	== 3.3 Uplink Payload ==
278	278
279	279	There are five working modes + one interrupt mode on LT for different type application:
...	...	@@ -285,8 +285,6 @@
285	285	* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
286	286	* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
287	287
288		-
289		-
290	290	=== 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
291	291
292	292	The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
...	...	@@ -322,7 +322,6 @@
322	322	* [1] RO1 relay channel is close and the RO1 LED is ON.
323	323	* [0] RO2 relay channel is open and RO2 LED is OFF;
324	324
325		-
326	326	**LT22222-L:**
327	327
328	328	* [1] DI2 channel is high input and DI2 LED is ON;
...	...	@@ -342,9 +342,7 @@
342	342
343	343	**For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
344	344
345		-(((
346	346	Total : 11 bytes payload
347		-)))
348	348
349	349	[[image:image-20220523180452-3.png]]
350	350
...	...	@@ -358,79 +358,54 @@
358	358	* FIRST: Indicate this is the first packet after join network.
359	359	* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
360	360
361		-(((
362	362	(% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
363		-)))
364	364
365		-(((
366	366	**To use counting mode, please run:**
367		-)))
368	368
369	369	(% class="box infomessage" %)
370	370	(((
371		-(((
372	372	**AT+MOD=2**
373	373	)))
374		-)))
375	375
376	376	(% class="box infomessage" %)
377	377	(((
378		-(((
379	379	**ATZ**
380	380	)))
381		-)))
382	382
383		-(((
384	384	(% style="color:#4f81bd" %)**AT Commands for counting:**
385		-)))
386	386
387		-(((
388	388	**For LT22222-L:**
389		-)))
390	390
391	391	(% class="box infomessage" %)
392	392	(((
393		-(((
394	394	**AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
395	395	)))
396		-)))
397	397
398	398	(% class="box infomessage" %)
399	399	(((
400		-(((
401	401	**AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
402	402	)))
403		-)))
404	404
405	405	(% class="box infomessage" %)
406	406	(((
407		-(((
408	408	**AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
409	409	)))
410		-)))
411	411
412	412	(% class="box infomessage" %)
413	413	(((
414		-(((
415	415	**AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
416	416	)))
417		-)))
418	418
419	419	(% class="box infomessage" %)
420	420	(((
421		-(((
422	422	**AT+SETCNT=1,60   (Set COUNT1 value to 60)**
423	423	)))
424		-)))
425	425
426	426	(% class="box infomessage" %)
427	427	(((
428		-(((
429	429	**AT+SETCNT=2,60   (Set COUNT2 value to 60)**
430	430	)))
431		-)))
432	432
433		-
434	434	=== 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
435	435
436	436	**LT22222-L**: This mode the DI1 is used as a counting pin.
...	...	@@ -447,34 +447,22 @@
447	447	* FIRST: Indicate this is the first packet after join network.
448	448	* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
449	449
450		-(((
451	451	(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
452		-)))
453	453
454		-(((
455	455	**To use counting mode, please run:**
456		-)))
457	457
458	458	(% class="box infomessage" %)
459	459	(((
460		-(((
461	461	**AT+MOD=3**
462	462	)))
463		-)))
464	464
465	465	(% class="box infomessage" %)
466	466	(((
467		-(((
468	468	**ATZ**
469	469	)))
470		-)))
471	471
472		-(((
473		-Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
	330	+Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
474	474
475		-
476		-)))
477		-
478	478	=== 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
479	479
480	480	**LT22222-L**: This mode the DI1 is used as a counting pin.
...	...	@@ -493,69 +493,45 @@
493	493	* FIRST: Indicate this is the first packet after join network.
494	494	* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
495	495
496		-(((
497	497	(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
498		-)))
499	499
500		-(((
501	501	**To use this mode, please run:**
502		-)))
503	503
504	504	(% class="box infomessage" %)
505	505	(((
506		-(((
507	507	**AT+MOD=4**
508	508	)))
509		-)))
510	510
511	511	(% class="box infomessage" %)
512	512	(((
513		-(((
514	514	**ATZ**
515	515	)))
516		-)))
517	517
518		-(((
519		-
520		-)))
521	521
522		-(((
523		-Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
524		-)))
	365	+Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
525	525
526		-(((
527	527	**Plus below command for AVI1 Counting:**
528		-)))
529	529
530	530	(% class="box infomessage" %)
531	531	(((
532		-(((
533	533	**AT+SETCNT=3,60   (set AVI Count to 60)**
534	534	)))
535		-)))
536	536
537	537	(% class="box infomessage" %)
538	538	(((
539		-(((
540	540	**AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
541	541	)))
542		-)))
543	543
544	544	(% class="box infomessage" %)
545	545	(((
546		-(((
547	547	**AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
548	548	)))
549		-)))
550	550
551	551	(% class="box infomessage" %)
552	552	(((
553		-(((
554	554	**AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
555	555	)))
556		-)))
557	557
558		-
559	559	=== 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
560	560
561	561	**LT22222-L**: This mode the DI1 is used as a counting pin.
...	...	@@ -568,38 +568,24 @@
568	568
569	569	* RO is for relay. ROx=1 : close，ROx=0 always open.
570	570	* FIRST: Indicate this is the first packet after join network.
571		-* (((
572		-DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
573		-)))
	401	+* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
574	574
575		-(((
576	576	(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
577		-)))
578	578
579		-(((
580	580	**To use this mode, please run:**
581		-)))
582	582
583	583	(% class="box infomessage" %)
584	584	(((
585		-(((
586	586	**AT+MOD=5**
587	587	)))
588		-)))
589	589
590	590	(% class="box infomessage" %)
591	591	(((
592		-(((
593	593	**ATZ**
594	594	)))
595		-)))
596	596
597		-(((
598		-Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
	417	+Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
599	599
600		-
601		-)))
602		-
603	603	=== 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
604	604
605	605	(% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
...	...	@@ -626,7 +626,6 @@
626	626
627	627	AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
628	628
629		-
630	630	(% style="color:#4f81bd" %)**Trigger base on current**:
631	631
632	632	Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
...	...	@@ -635,7 +635,6 @@
635	635
636	636	AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
637	637
638		-
639	639	(% style="color:#4f81bd" %)**Trigger base on DI status**:
640	640
641	641	DI status trigger Flag.
...	...	@@ -649,7 +649,7 @@
649	649
650	650	**Downlink Command to set Trigger Condition**
651	651
652		-Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
	466	+Type Code: 0xAA. Downlink command same as AT Command [[AT+AVLIM, AT+ACLIM>>path:#AT_Trigger]]
653	653
654	654	Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
655	655
...	...	@@ -669,7 +669,7 @@
669	669
670	670	Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
671	671
672		-**Example2**: AA 02 01 00
	486	+Example2: AA 02 01 00
673	673
674	674	Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
675	675
...	...	@@ -722,13 +722,10 @@
722	722
723	723	When device got this command, it will send the MOD6 payload.
724	724
725		-
726	726	=== 3.3.7 Payload Decoder ===
727	727
728	728	(((
729	729	**Decoder for TTN/loraserver/ChirpStack**: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/]]
730		-
731		-
732	732	)))
733	733
734	734	== 3.4 ​Configure LT via AT or Downlink ==
...	...	@@ -739,15 +739,14 @@
739	739	There are two kinds of Commands:
740	740	)))
741	741
742		-* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
	553	+* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
743	743
744	744	* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
745	745
746	746	=== 3.4.1 Common Commands ===
747	747
748		-They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
	559	+They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>http://8.211.40.43:8080/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
749	749
750		-
751	751	=== 3.4.2 Sensor related commands ===
752	752
753	753	==== 3.4.2.1 Set Transmit Interval ====
...	...	@@ -791,7 +791,6 @@
791	791	**0x0A aa     ~/~/ Same as AT+MOD=aa**
792	792	)))
793	793
794		-
795	795	==== 3.4.2.3 Poll an uplink ====
796	796
797	797	* AT Command:
...	...	@@ -810,7 +810,7 @@
810	810
811	811	==== 3.4.2.4 Enable Trigger Mode ====
812	812
813		-Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
	622	+Use of trigger mode, please check [[ADDMOD6>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
814	814
815	815	* AT Command:
816	816
...	...	@@ -823,15 +823,13 @@
823	823
824	824	0: Disable Trigger Mode
825	825
	635	+
826	826	* Downlink Payload (prefix 0x0A 06):
827	827
828		-(% class="box infomessage" %)
829		-(((
830		-**0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
831		-)))
	638	+0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,
832	832
833	833
834		-==== 3.4.2.5 Poll trigger settings ====
	641	+==== Poll trigger settings ====
835	835
836	836	Poll trigger settings,
837	837
...	...	@@ -839,347 +839,339 @@
839	839
840	840	There is no AT Command for this feature.
841	841
	649	+
842	842	* Downlink Payload (prefix 0x AB 06):
843	843
844		-(% class="box infomessage" %)
845		-(((
846		-**0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
847		-)))
	652	+0xAB 06  ~/~/ Poll trigger settings, device will uplink [[trigger settings>>path:#Trigger_Settings]] once receive this command
848	848
849	849
850		-==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
	655	+==== Enable / Disable DI1/DI2/DI3 as trigger ====
851	851
852	852	Enable Disable DI1/DI2/DI2 as trigger,
853	853
854	854	* AT Command:
855	855
856		-(% class="box infomessage" %)
857		-(((
858		-**Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
859		-)))
	661	+Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >
860	860
861		-**Example:**
	663	+Example:
862	862
863	863	AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
864	864
	667	+
	668	+
865	865	* Downlink Payload (prefix 0xAA 02):
866	866
867		-(% class="box infomessage" %)
868		-(((
869		-**0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
870		-)))
	671	+0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb
871	871
872	872
873		-==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
874	874
	675	+==== Trigger1 – Set DI1 or DI3 as trigger ====
	676	+
875	875	Set DI1 or DI3(for LT-33222-L) trigger.
876	876
877	877	* AT Command:
878	878
879		-(% class="box infomessage" %)
880		-(((
881		-**AT+TRIG1=a,b**
882		-)))
	681	+AT+TRIG1=a,b
883	883
884	884	a : Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
885	885
886	886	b : delay timing.
887	887
888		-**Example:**
	687	+Example:
889	889
890	890	AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
891	891
	691	+
892	892	* Downlink Payload (prefix 0x09 01 ):
893	893
894		-(% class="box infomessage" %)
895		-(((
896		-**0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
897		-)))
	694	+0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)
898	898
899	899
900		-==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
	697	+==== Trigger2 – Set DI2 as trigger ====
901	901
902	902	Set DI2 trigger.
903	903
904	904	* AT Command:
905	905
906		-(% class="box infomessage" %)
907		-(((
908		-**AT+TRIG2=a,b**
909		-)))
	703	+AT+TRIG2=a,b
910	910
911	911	a : Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
912	912
913	913	b : delay timing.
914	914
915		-**Example:**
	709	+Example:
916	916
917	917	AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
918	918
	713	+
919	919	* Downlink Payload (prefix 0x09 02 ):
920	920
921		-(% class="box infomessage" %)
922		-(((
923		-**0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
924		-)))
	716	+0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)
925	925
926	926
927		-==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
	719	+==== Trigger – Set AC (current) as trigger ====
928	928
929		-Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
	721	+Set current trigger , base on AC port. See [[trigger mode>>path:#MOD6]]
930	930
931	931	* AT Command:
932	932
933		-(% class="box infomessage" %)
934		-(((
935		-**AT+ACLIM. **
936		-)))
	725	+AT+ACLIM. See [[trigger mode>>path:#MOD6]]
937	937
	727	+
938	938	* Downlink Payload (prefix 0xAA 01 ):
939	939
940		-(% class="box infomessage" %)
941		-(((
942		-**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
943		-)))
	730	+0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>path:#MOD6]]
944	944
945	945
946		-==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
	733	+==== Trigger – Set AV (voltage) as trigger ====
947	947
948		-Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
	735	+Set current trigger , base on AV port. See [[trigger mode>>path:#MOD6]]
949	949
950	950	* AT Command:
951	951
952		-(% class="box infomessage" %)
953		-(((
954		-**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
955		-)))
	739	+AT+AVLIM. See [[trigger mode>>path:#MOD6]]
956	956
	741	+
957	957	* Downlink Payload (prefix 0xAA 00 ):
958	958
959		-(% class="box infomessage" %)
960		-(((
961		-**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
962		-)))
	744	+0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>path:#MOD6]]
963	963
	746	+==== Trigger – Set minimum interval ====
964	964
965		-==== 3.4.2.11 Trigger – Set minimum interval ====
966		-
967	967	Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
968	968
969	969	* AT Command:
970	970
971		-(% class="box infomessage" %)
972		-(((
973		-**AT+ATDC=5. Device won’t response the second trigger within 5 minute after the first trigger.**
974		-)))
	752	+AT+ATDC=5. Device won’t response the second trigger within 5 minute after the first trigger.
975	975
	754	+
976	976	* Downlink Payload (prefix 0xAC ):
977	977
978		-(% class="box infomessage" %)
979		-(((
980		-**0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
981		-)))
	757	+0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
982	982
983	983
984		-==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
	760	+==== DO ~-~- Control Digital Output DO1/DO2/DO3 ====
985	985
986	986	* AT Command:
987	987
988	988	There is no AT Command to control Digital Output
989	989
	766	+
990	990	* Downlink Payload (prefix 0x02):
991	991
992		-(% class="box infomessage" %)
993		-(((
994		-**0x02 aa bb cc     ~/~/ Set DO1/DO2/DO3 output**
995		-)))
	769	+0x02 aa bb cc     ~/~/ Set DO1/DO2/DO3 output
996	996
997		-(((
998	998	If payload = 0x02010001, while there is load between V+ and DOx, it means set DO1 to low, DO2 to high and DO3 to low.
999		-)))
1000	1000
1001		-(((
1002	1002	01: Low,  00: High ,  11: No action
1003		-)))
1004	1004
1005		-[[image:image-20220524092754-5.png]]
	775	+(% border="1" style="background-color:#f7faff" %)
	776	+|Downlink Code|DO1|DO2|DO3
	777	+|02  01  00  11|Low|High|No Action
	778	+|02  00  11  01|High|No Action|Low
	779	+|02  11  01  00|No Action|Low|High
1006	1006
1007		-(((
1008		-(% style="color:red" %)Note: For LT-22222-L, there is no DO3, the last byte can use any value.
1009		-)))
	781	+Note: For LT-22222-L, there is no DO3, the last byte can use any value.
1010	1010
1011		-(((
1012		-(% style="color:red" %)Device will upload a packet if downlink code executes successfully.
1013		-)))
	783	+Device will upload a packet if downlink code executes successfully.
1014	1014
1015	1015
1016		-==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
1017	1017
	787	+
	788	+
	789	+==== DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
	790	+
1018	1018	* AT Command:
1019	1019
1020	1020	There is no AT Command to control Digital Output
1021	1021
	795	+
1022	1022	* Downlink Payload (prefix 0xA9):
1023	1023
1024		-(% class="box infomessage" %)
1025		-(((
1026		-(((
1027		-**0xA9 aa bb cc     ~/~/ Set DO1/DO2/DO3 output with time control**
1028		-)))
1029		-)))
	798	+0xA9 aa bb cc     ~/~/ Set DO1/DO2/DO3 output with time control
1030	1030
1031	1031	This is to control the digital output time of DO pin. Include four bytes:
1032	1032
1033		-(% style="color:#4f81bd" %)**First Byte**(%%)**:** Type code (0xA9)
	802	+**First Byte:** Type code (0xA9)
1034	1034
1035		-(% style="color:#4f81bd" %)**Second Byte**(%%): Inverter Mode
	804	+**Second Byte**: Inverter Mode
1036	1036
1037	1037	01: DO pins will change back to original state after timeout.
1038	1038
1039	1039	00: DO pins will change to an inverter state after timeout
1040	1040
1041		-(% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1042	1042
1043		-[[image:image-20220524093238-6.png]]
	811	+**Third Byte**: Control Method and Ports status:
1044	1044
1045		-(% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
	813	+(% border="1" style="background-color:#f7faff" %)
	814	+|Second Byte|Status
	815	+|0x01|DO1 set to low
	816	+|0x00|DO1 set to high
	817	+|0x11|DO1 NO Action
1046	1046
1047		-[[image:image-20220524093328-7.png]]
	819	+**Fourth Byte**: Control Method and Ports status:
1048	1048
1049		-(% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
	821	+(% border="1" style="background-color:#f7faff" %)
	822	+|Second Byte|Status
	823	+|0x01|DO2 set to low
	824	+|0x00|DO2 set to high
	825	+|0x11|DO2 NO Action
1050	1050
1051		-[[image:image-20220524093351-8.png]]
	827	+**Fifth Byte**: Control Method and Ports status:
1052	1052
1053		-(% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
	829	+(% border="1" style="background-color:#f7faff" %)
	830	+|Second Byte|Status
	831	+|0x01|DO3 set to low
	832	+|0x00|DO3 set to high
	833	+|0x11|DO3 NO Action
1054	1054
	835	+**Sixth and Seventh Byte**:
	836	+
1055	1055	Latching time. Unit: ms
1056	1056
1057	1057	Device will upload a packet if downlink code executes successfully.
1058	1058
1059		-**Example payload:**
1060	1060
1061		-**~1. A9 01 01 01 01 07 D0**
1062	1062
	843	+Example payload:
	844	+
	845	+1. A9 01 01 01 01 07 D0
	846	+
1063	1063	DO1 pin & DO2 pin & DO3 pin will be set to Low, last 2 seconds, then change back to original state.
1064	1064
1065		-**2. A9 01 00 01 11 07 D0**
1066	1066
	850	+1. A9 01 00 01 11 07 D0
	851	+
1067	1067	DO1 pin set high, DO2 pin set low, DO3 pin no action, last 2 seconds, then change back to original state.
1068	1068
1069		-**3. A9 00 00 00 00 07 D0**
1070	1070
	855	+1. A9 00 00 00 00 07 D0
	856	+
1071	1071	DO1 pin & DO2 pin & DO3 pin will be set to high, last 2 seconds, then both change to low.
1072	1072
1073		-**4. A9 00 11 01 00 07 D0**
1074	1074
	860	+1. A9 00 11 01 00 07 D0
	861	+
1075	1075	DO1 pin no action, DO2 pin set low, DO3 pin set high, last 2 seconds, then DO1 pin no action, DO2 pin set high, DO3 pin set low
1076	1076
1077	1077
1078		-=== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
1079	1079
	866	+
	867	+==== Relay ~-~- Control Relay Output RO1/RO2 ====
	868	+
1080	1080	* AT Command:
1081	1081
1082	1082	There is no AT Command to control Relay Output
1083	1083
	873	+
1084	1084	* Downlink Payload (prefix 0x03):
1085	1085
1086		-(% class="box infomessage" %)
1087		-(((
1088		-**0x03 aa bb     ~/~/ Set RO1/RO2 output**
1089		-)))
	876	+0x03 aa bb     ~/~/ Set RO1/RO2 output
1090	1090
1091		-(((
1092	1092	If payload = 0x030100, it means set RO1 to close and RO2 to open.
1093		-)))
1094	1094
1095		-(((
1096	1096	01: Close ,  00: Open , 11: No action
1097		-)))
1098	1098
1099		-(((
1100		-[[image:image-20220524093724-9.png]]
1101		-)))
	882	+(% border="1" style="background-color:#f7faff" %)
	883	+|Downlink Code|RO1|RO2
	884	+|03  00  11|Open|No Action
	885	+|03  01  11|Close|No Action
	886	+|03  11  00|No Action|Open
	887	+|03  11  01|No Action|Close
	888	+|03  00  00|Open|Open
	889	+|03  01  01|Close|Close
	890	+|03  01  00|Close|Open
	891	+|03  00  01|Open|Close
1102	1102
1103	1103	Device will upload a packet if downlink code executes successfully.
1104	1104
1105	1105
1106		-==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
	896	+==== Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1107	1107
1108	1108	* AT Command:
1109	1109
1110	1110	There is no AT Command to control Relay Output
1111	1111
	902	+
1112	1112	* Downlink Payload (prefix 0x05):
1113	1113
1114		-(% class="box infomessage" %)
1115		-(((
1116		-**0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:**
1117		-)))
	905	+0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:
1118	1118
1119	1119	This is to control the relay output time of relay. Include four bytes:
1120	1120
1121		-(% style="color:#4f81bd" %)**First Byte **(%%)**:** Type code (0x05)
	909	+**First Byte:** Type code (0x05)
1122	1122
1123		-(% style="color:#4f81bd" %)**Second Byte(aa)**(%%): Inverter Mode
	911	+**Second Byte(aa)**: Inverter Mode
1124	1124
1125	1125	01: Relays will change back to original state after timeout.
1126	1126
1127	1127	00: Relays will change to an inverter state after timeout
1128	1128
1129		-(% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1130	1130
1131		-[[image:image-20220524093831-10.png]]
	918	+**Third Byte(bb)**: Control Method and Ports status:
1132	1132
1133		-(% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
	920	+(% border="1" style="background-color:#f7faff" %)
	921	+|Value|Status
	922	+|0x11|RO1 and RO2 to NO
	923	+|0x10|RO2 to NO, RO1 to NC
	924	+|0x01|RO2 to NC, RO1 to NO
	925	+|0x00|RO1 and RO2 to NC.
	926	+|0x20|RO1 No Action, RO2 to NC
	927	+|0x21|RO1 No Action, RO2 to NO
	928	+|0x02|RO1 to NC, RO2 No Action
	929	+|0x12|RO1 to NO, RO2 No Action
1134	1134
	931	+**Fourth / Fifth Bytes (cc)**: Latching time. Unit: ms
	932	+
1135	1135	Device will upload a packet if downlink code executes successfully.
1136	1136
	935	+
	936	+
1137	1137	**Example payload:**
1138	1138
1139		-**~1. 05 01 11 07 D0**
	939	+1. 05 01 11 07 D0
1140	1140
1141	1141	Relay1 and Relay 2 will be set to NO , last 2 seconds, then change back to original state.
1142	1142
1143		-**2. 05 01 10 07 D0**
1144	1144
	944	+1. 05 01 10 07 D0
	945	+
1145	1145	Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then both change back to original state.
1146	1146
1147		-**3. 05 00 01 07 D0**
1148	1148
	949	+1. 05 00 01 07 D0
	950	+
1149	1149	Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then relay change to NO, Relay2 change to NC.
1150	1150
1151		-**4. 05 00 00 07 D0**
1152	1152
	954	+1. 05 00 00 07 D0
	955	+
1153	1153	Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1154	1154
1155	1155
1156		-==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1157	1157
1158		-When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1159	1159
	961	+
	962	+
	963	+==== Counting ~-~- Voltage threshold counting ====
	964	+
	965	+When voltage exceed the threshold, count. Feature see [[MOD4>>path:#MOD4]]
	966	+
1160	1160	* AT Command:
1161	1161
1162		-(% class="box infomessage" %)
1163		-(((
1164		-**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1165		-)))
	969	+AT+VOLMAX    ~/~/ See [[MOD4>>path:#MOD4]]
1166	1166
	971	+
1167	1167	* Downlink Payload (prefix 0xA5):
1168	1168
1169		-(% class="box infomessage" %)
1170		-(((
1171		-**0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1172		-)))
	974	+0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc
1173	1173
1174	1174
1175		-==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
	977	+==== Counting ~-~- Pre-configure the Count Number ====
1176	1176
1177	1177	* AT Command:
1178	1178
1179		-(% class="box infomessage" %)
1180		-(((
1181		-**AT+SETCNT=aa,(bb cc dd ee) **
1182		-)))
	981	+AT+SETCNT=aa,(bb cc dd ee)
1183	1183
1184	1184	aa: 1: Set count1,
1185	1185
...	...	@@ -1189,234 +1189,182 @@
1189	1189
1190	1190	Bb cc dd ee: number to be set
1191	1191
	991	+
1192	1192	* Downlink Payload (prefix 0xA8):
1193	1193
1194		-(% class="box infomessage" %)
1195		-(((
1196		-**0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1197		-)))
	994	+0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
1198	1198
1199	1199
1200		-==== 3.4.2.18 Counting ~-~- Clear Counting ====
1201	1201
	998	+
	999	+
	1000	+==== Counting ~-~- Clear Counting ====
	1001	+
1202	1202	Clear counting for counting mode
1203	1203
1204	1204	* AT Command:
1205	1205
1206		-(% class="box infomessage" %)
1207		-(((
1208		-**AT+CLRCOUNT ~/~/ clear all counting**
1209		-)))
	1006	+AT+CLRCOUNT ~/~/ clear all counting
1210	1210
	1008	+
1211	1211	* Downlink Payload (prefix 0xA6):
1212	1212
1213		-(% class="box infomessage" %)
1214		-(((
1215		-**0x A6 01     ~/~/ clear all counting,**
1216		-)))
	1011	+0x A6 01     ~/~/ clear all counting,
1217	1217
1218	1218
1219		-==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1220	1220
	1015	+
	1016	+==== Counting ~-~- Change counting mode save time ====
	1017	+
1221	1221	* AT Command:
1222	1222
1223		-(% class="box infomessage" %)
1224		-(((
1225		-**AT+COUTIME=60  ~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)**
1226		-)))
	1020	+AT+COUTIME=60  ~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
1227	1227
	1022	+
1228	1228	* Downlink Payload (prefix 0xA7):
1229	1229
1230		-(% class="box infomessage" %)
1231		-(((
1232		-**0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,**
1233		-)))
	1025	+0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,
1234	1234
1235		-(((
1236	1236	range: aa bb cc:0 to 16777215,  (unit:second)
1237	1237
1238		-
1239		-)))
1240	1240
1241		-== 3.5 Integrate with Mydevice ==
1242	1242
	1031	+
	1032	+1.
	1033	+11. Integrate with Mydevice
	1034	+
1243	1243	Mydevices provides a human friendly interface to show the sensor data, once we have data in TTN, we can use Mydevices to connect to TTN and see the data in Mydevices. Below are the steps:
1244	1244
1245		-(((
1246		-**Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1247		-)))
1248	1248
1249		-(((
1250		-**Step 2**: To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1251		-)))
	1038	+Step 1: Be sure that your device is programmed and properly connected to the network at this time.
1252	1252
1253		-[[image:1653356737703-362.png||height="232" width="732"]]
	1040	+Step 2: To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1254	1254
1255		-[[image:image-20220524094641-11.png||height="390" width="723"]]
1256	1256
1257		-[[image:image-20220524094641-12.png||height="402" width="718"]]
	1043	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
1258	1258
1259	1259
1260		-**Step 3**: Create an account or log in Mydevices.
	1046	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
1261	1261
1262		-**Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1263	1263
	1049	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
	1050	+
	1051	+
	1052	+
	1053	+Step 3: Create an account or log in Mydevices.
	1054	+
	1055	+Step 4: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.
	1056	+
1264	1264	Search under The things network
1265	1265
1266		-[[image:1653356838789-523.png||height="337" width="740"]]
	1059	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
1267	1267
1268	1268
1269	1269	After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1270	1270
1271		-[[image:image-20220524094909-1.png||height="335" width="729"]]
	1064	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
1272	1272
1273		-[[image:image-20220524094909-2.png||height="337" width="729"]]
1274	1274
1275		-[[image:image-20220524094909-3.png||height="338" width="727"]]
	1067	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
1276	1276
1277		-[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1278	1278
1279		-[[image:image-20220524094909-5.png||height="341" width="734"]]
	1070	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
1280	1280
1281	1281
1282		-== 3.6 Interface Detail ==
	1073	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
1283	1283
1284		-=== 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1285	1285
	1076	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
	1077	+
	1078	+
	1079	+1.
	1080	+11. Interface Detail
	1081	+111. Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active )
	1082	+
1286	1286	Support NPN Type sensor
1287	1287
1288		-[[image:1653356991268-289.png]]
	1085	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
1289	1289
1290	1290
1291		-=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1292	1292
1293		-(((
	1089	+1.
	1090	+11.
	1091	+111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
	1092	+
1294	1294	The DI port of LT-22222-L can support NPN or PNP output sensor.
1295		-)))
1296	1296
1297		-(((
1298		-(((
1299	1299	Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high
1300		-)))
1301		-)))
1302	1302
1303		-[[image:1653357170703-587.png]]
	1097	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
1304	1304
1305		-(((
1306		-(((
1307	1307	When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1308		-)))
1309		-)))
1310	1310
1311		-(((
1312		-
1313		-)))
1314	1314
1315		-(((
1316	1316	**Example1**: Connect to a Low active sensor.
1317		-)))
1318	1318
1319		-(((
1320	1320	This type of sensor will output a low signal GND when active.
1321		-)))
1322	1322
1323		-* (((
1324		-Connect sensor’s output to DI1-
1325		-)))
1326		-* (((
1327		-Connect sensor’s VCC to DI1+.
1328		-)))
	1106	+* Connect sensor’s output to DI1-
	1107	+* Connect sensor’s VCC to DI1+.
1329	1329
1330		-(((
1331		-So when sensor active, the current between NEC2501 pin1 and pin2 is：
1332		-)))
	1109	+So when sensor active, the current between NEC2501 pin1 and pin2 is:
1333	1333
1334		-(((
1335		-[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1336		-)))
	1111	+ //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1337	1337
1338		-(((
1339		-If DI1+ = 12v, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1340		-)))
	1113	+If DI1+ = 12v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 12mA , So the LT-22222-L will be able to detect this active signal.
1341	1341
1342		-(((
1343		-
1344		-)))
1345	1345
1346		-(((
1347	1347	**Example2**: Connect to a High active sensor.
1348		-)))
1349	1349
1350		-(((
1351	1351	This type of sensor will output a high signal (example 24v) when active.
1352		-)))
1353	1353
1354		-* (((
1355		-Connect sensor’s output to DI1+
1356		-)))
1357		-* (((
1358		-Connect sensor’s GND DI1-.
1359		-)))
	1120	+* Connect sensor’s output to DI1+
	1121	+* Connect sensor’s GND DI1-.
1360	1360
1361		-(((
1362	1362	So when sensor active, the current between NEC2501 pin1 and pin2 is:
1363		-)))
1364	1364
1365		-(((
1366		-[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1367		-)))
	1125	+ //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1368	1368
1369		-(((
1370		-If **DI1+ = 24v**, the[[image:1653968155772-850.png||height="23" width="19"]] 24mA , So the LT-22222-L will be able to detect this high active signal.
1371		-)))
	1127	+If DI1+ = 24v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 24mA , So the LT-22222-L will be able to detect this high active signal.
1372	1372
1373		-(((
1374		-
1375		-)))
1376	1376
1377		-(((
1378		-**Example3**: Connect to a 220v high active sensor.
1379		-)))
	1130	+**Example3**: Connect to a 220v high active sensor.公司测试一下
1380	1380
1381		-(((
1382	1382	Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler
1383		-)))
1384	1384
1385		-* (((
1386		-Connect sensor’s output to DI1+ with a serial 50K resistor
1387		-)))
1388		-* (((
1389		-Connect sensor’s GND DI1-.
1390		-)))
	1134	+* Connect sensor’s output to DI1+ with a serial 50K resistor
	1135	+* Connect sensor’s GND DI1-.
1391	1391
1392		-(((
1393	1393	So when sensor active, the current between NEC2501 pin1 and pin2 is:
1394		-)))
1395	1395
1396		-(((
1397		- [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1398		-)))
	1139	+ //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 51K.
1399	1399
1400		-(((
1401		-If sensor output is 220v, the [[image:1653968155772-850.png||height="23" width="19"]](% 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.
1402		-)))
	1141	+If sensor output is 220v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1403	1403
1404	1404
1405		-=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
	1144	+1.
	1145	+11.
	1146	+111. Digital Output Port: DO1/DO2 /DO3
1406	1406
1407	1407	NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1408	1408
1409		-[[image:1653357531600-905.png]]
	1150	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1410	1410
1411	1411
1412		-=== 3.6.4 Analog Input Interface ===
1413	1413
	1154	+
	1155	+1.
	1156	+11.
	1157	+111. Analog Input Interface
	1158	+
1414	1414	The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
1415	1415
1416		-**AC2 = (IN2 voltage )/12**
	1161	+AC2 = (IN2 voltage )/12
1417	1417
1418		-[[image:1653357592296-182.png]]
	1163	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
1419	1419
	1165	+
	1166	+
1420	1420	Example to connect a 4~~20mA sensor
1421	1421
1422	1422	We take the wind speed sensor as an example for reference only.
...	...	@@ -1432,639 +1432,423 @@
1432	1432
1433	1433	Connection diagram:
1434	1434
1435		-[[image:1653357640609-758.png]]
	1182	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg]]
1436	1436
1437		-[[image:1653357648330-671.png||height="155" width="733"]]
	1184	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1438	1438
1439	1439
1440		-=== 3.6.5 Relay Output ===
1441	1441
1442		-(((
	1188	+1.
	1189	+11.
	1190	+111. Relay Output
	1191	+
1443	1443	The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
1444		-)))
1445	1445
1446		-[[image:image-20220524100215-9.png]]
	1194	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1447	1447
1448		-[[image:image-20220524100215-10.png||height="382" width="723"]]
1449	1449
	1197	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1450	1450
1451		-== 3.7 LEDs Indicators ==
1452	1452
1453		-[[image:image-20220524100748-11.png]]
1454	1454
1455	1455
1456		-= 4. Use AT Command =
1457	1457
1458		-== 4.1 Access AT Command ==
	1203	+1.
	1204	+11. LEDs Indicators
1459	1459
1460		-LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
	1206	+(% border="1" style="background-color:#f7faff" %)
	1207	+|**LEDs**|**Feature**
	1208	+|**PWR**|Always on if there is power
	1209	+|**SYS**|After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
	1210	+|**TX**|(((
	1211	+Device boot: TX blinks 5 times.
1461	1461
1462		-[[image:1653358238933-385.png]]
	1213	+Successful join network: TX ON for 5 seconds.
1463	1463
1464		-(((
1465		-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:
	1215	+Transmit a LoRa packet: TX blinks once
1466	1466	)))
	1217	+|**RX**|RX blinks once when receive a packet.
	1218	+|**DO1**|
	1219	+|**DO2**|
	1220	+|**DO3**|
	1221	+|**DI2**|(((
	1222	+For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1467	1467
1468		-[[image:1653358355238-883.png]]
	1224	+For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
	1225	+)))
	1226	+|**DI2**|(((
	1227	+For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1469	1469
1470		-(((
1471		-More detail AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
	1229	+For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1472	1472	)))
	1231	+|**DI3**|For LT-33222-L ONLY: ON when DI3 is low, LOW when DI3 is high
	1232	+|**DI2**|(((
	1233	+For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1473	1473
1474		-(((
1475		-AT+<CMD>?        : Help on <CMD>
	1235	+For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1476	1476	)))
	1237	+|**RO1**|
	1238	+|**RO2**|
1477	1477
1478		-(((
	1240	+1. Use AT Command
	1241	+11. Access AT Command
	1242	+
	1243	+LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
	1244	+
	1245	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
	1246	+
	1247	+
	1248	+In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:**123456**) to active it. As shown below:
	1249	+
	1250	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
	1251	+
	1252	+
	1253	+More detail AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
	1254	+
	1255	+AT+<CMD>?        : Help on <CMD>
	1256	+
1479	1479	AT+<CMD>         : Run <CMD>
1480		-)))
1481	1481
1482		-(((
1483	1483	AT+<CMD>=<value> : Set the value
1484		-)))
1485	1485
1486		-(((
1487	1487	AT+<CMD>=?       : Get the value
1488		-)))
1489	1489
1490		-(((
1491	1491	ATZ: Trig a reset of the MCU
1492		-)))
1493	1493
1494		-(((
1495	1495	AT+FDR: Reset Parameters to Factory Default, Keys Reserve
1496		-)))
1497	1497
1498		-(((
1499	1499	AT+DEUI: Get or Set the Device EUI
1500		-)))
1501	1501
1502		-(((
1503	1503	AT+DADDR: Get or Set the Device Address
1504		-)))
1505	1505
1506		-(((
1507	1507	AT+APPKEY: Get or Set the Application Key
1508		-)))
1509	1509
1510		-(((
1511	1511	AT+NWKSKEY: Get or Set the Network Session Key
1512		-)))
1513	1513
1514		-(((
1515	1515	AT+APPSKEY: Get or Set the Application Session Key
1516		-)))
1517	1517
1518		-(((
1519	1519	AT+APPEUI: Get or Set the Application EUI
1520		-)))
1521	1521
1522		-(((
1523	1523	AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1524		-)))
1525	1525
1526		-(((
1527	1527	AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1528		-)))
1529	1529
1530		-(((
1531	1531	AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)
1532		-)))
1533	1533
1534		-(((
1535	1535	AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1536		-)))
1537	1537
1538		-(((
1539	1539	AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1540		-)))
1541	1541
1542		-(((
1543	1543	AT+RX2FQ: Get or Set the Rx2 window frequency
1544		-)))
1545	1545
1546		-(((
1547	1547	AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1548		-)))
1549	1549
1550		-(((
1551	1551	AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1552		-)))
1553	1553
1554		-(((
1555	1555	AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1556		-)))
1557	1557
1558		-(((
1559	1559	AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1560		-)))
1561	1561
1562		-(((
1563	1563	AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1564		-)))
1565	1565
1566		-(((
1567	1567	AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1568		-)))
1569	1569
1570		-(((
1571	1571	AT+NWKID: Get or Set the Network ID
1572		-)))
1573	1573
1574		-(((
1575	1575	AT+FCU: Get or Set the Frame Counter Uplink
1576		-)))
1577	1577
1578		-(((
1579	1579	AT+FCD: Get or Set the Frame Counter Downlink
1580		-)))
1581	1581
1582		-(((
1583	1583	AT+CLASS: Get or Set the Device Class
1584		-)))
1585	1585
1586		-(((
1587	1587	AT+JOIN: Join network
1588		-)))
1589	1589
1590		-(((
1591	1591	AT+NJS: Get OTAA Join Status
1592		-)))
1593	1593
1594		-(((
1595	1595	AT+SENDB: Send hexadecimal data along with the application port
1596		-)))
1597	1597
1598		-(((
1599	1599	AT+SEND: Send text data along with the application port
1600		-)))
1601	1601
1602		-(((
1603	1603	AT+RECVB: Print last received data in binary format (with hexadecimal values)
1604		-)))
1605	1605
1606		-(((
1607	1607	AT+RECV: Print last received data in raw format
1608		-)))
1609	1609
1610		-(((
1611	1611	AT+VER: Get current image version and Frequency Band
1612		-)))
1613	1613
1614		-(((
1615	1615	AT+CFM: Get or Set the confirmation mode (0-1)
1616		-)))
1617	1617
1618		-(((
1619	1619	AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1620		-)))
1621	1621
1622		-(((
1623	1623	AT+SNR: Get the SNR of the last received packet
1624		-)))
1625	1625
1626		-(((
1627	1627	AT+RSSI: Get the RSSI of the last received packet
1628		-)))
1629	1629
1630		-(((
1631	1631	AT+TDC: Get or set the application data transmission interval in ms
1632		-)))
1633	1633
1634		-(((
1635	1635	AT+PORT: Get or set the application port
1636		-)))
1637	1637
1638		-(((
1639	1639	AT+DISAT: Disable AT commands
1640		-)))
1641	1641
1642		-(((
1643	1643	AT+PWORD: Set password, max 9 digits
1644		-)))
1645	1645
1646		-(((
1647	1647	AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1648		-)))
1649	1649
1650		-(((
1651	1651	AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1652		-)))
1653	1653
1654		-(((
1655	1655	AT+CFG: Print all settings
1656	1656
1657		-
1658		-)))
1659	1659
1660		-== 4.2 Common AT Command Sequence ==
1661	1661
1662		-=== 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
	1349	+1.
	1350	+11. Common AT Command Sequence
	1351	+111. Multi-channel ABP mode (Use with SX1301/LG308)
1663	1663
1664		-(((
1665	1665	If device has not joined network yet:
1666		-)))
1667	1667
1668		-(((
1669		-(% style="background-color:#dcdcdc" %)123456
1670		-)))
	1355	+123456
1671	1671
1672		-(((
1673		-(% style="background-color:#dcdcdc" %)AT+FDR
1674		-)))
	1357	+AT+FDR
1675	1675
1676		-(((
1677		-(% style="background-color:#dcdcdc" %)123456
1678		-)))
	1359	+123456
1679	1679
1680		-(((
1681		-(% style="background-color:#dcdcdc" %)AT+NJM=0
1682		-)))
	1361	+AT+NJM=0
1683	1683
1684		-(((
1685		-(% style="background-color:#dcdcdc" %)ATZ
1686		-)))
	1363	+ATZ
1687	1687
1688	1688
1689		-(((
1690	1690	If device already joined network:
1691		-)))
1692	1692
1693		-(((
1694		-(% style="background-color:#dcdcdc" %)AT+NJM=0
1695		-)))
	1368	+AT+NJM=0
1696	1696
1697		-(((
1698		-(% style="background-color:#dcdcdc" %)ATZ
	1370	+ATZ
1699	1699
1700		-
1701		-)))
	1372	+1.
	1373	+11.
	1374	+111. Single-channel ABP mode (Use with LG01/LG02)
1702	1702
1703		-=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
	1376	+123456   Enter Password to have AT access.
1704	1704
1705		-(((
1706		-(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1707		-)))
	1378	+AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1708	1708
1709		-(((
1710		-(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1711		-)))
	1380	+123456   Enter Password to have AT access.
1712	1712
1713		-(((
1714		-(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1715		-)))
	1382	+AT+CLASS=C Set to work in CLASS C
1716	1716
1717		-(((
1718		-(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1719		-)))
	1384	+AT+NJM=0 Set to ABP mode
1720	1720
1721		-(((
1722		-(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1723		-)))
	1386	+AT+ADR=0 Set the Adaptive Data Rate Off
1724	1724
1725		-(((
1726		-(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1727		-)))
	1388	+AT+DR=5  Set Data Rate
1728	1728
1729		-(((
1730		-(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1731		-)))
	1390	+AT+TDC=60000  Set transmit interval to 60 seconds
1732	1732
1733		-(((
1734		-(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1735		-)))
	1392	+AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1736	1736
1737		-(((
1738		-(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1739		-)))
	1394	+AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1740	1740
1741		-(((
1742		-(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1743		-)))
	1396	+AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1744	1744
1745		-(((
1746		-(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1747		-)))
	1398	+AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1748	1748
1749		-(((
1750		-(% style="background-color:#dcdcdc" %) AT+DADDR=26 01 1A F1 (%%)Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1751		-)))
	1400	+ATZ          Reset MCU
1752	1752
1753		-(((
1754		-(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1755		-)))
	1402	+**Note:**
1756	1756
1757		-(((
1758		-(% style="color:red" %)**Note:**
1759		-)))
	1404	+1. Make sure the device is set to ABP mode in the IoT Server.
	1405	+1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1406	+1. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
	1407	+1. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1760	1760
1761		-(((
1762		-(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1763		-2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1764		-3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1765		-4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1766		-)))
	1409	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1767	1767
1768		-(((
1769		-[[image:1653359097980-169.png||height="188" width="729"]]
1770		-)))
1771	1771
1772		-(((
1773		-
1774		-)))
	1412	+1.
	1413	+11.
	1414	+111. Change to Class A
1775	1775
1776		-=== 4.2.3 Change to Class A ===
1777		-
1778	1778	If sensor JOINED
1779		-(% style="background-color:#dcdcdc" %)AT+CLASS=A
	1417	+
	1418	+AT+CLASS=A
	1419	+
1780	1780	ATZ
1781	1781
1782	1782
1783		-= 5. FAQ =
1784	1784
1785		-== 5.1 How to upgrade the image? ==
1786	1786
	1425	+
	1426	+1. FAQ
	1427	+
	1428	+1.
	1429	+11. How to upgrade the image?
	1430	+
1787	1787	The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1788	1788
1789	1789	* Support new features
1790	1790	* For bug fix
1791	1791	* Change LoRaWAN bands.
	1436	+
1792	1792	Below shows the hardware connection for how to upload an image to the LT:
1793		-* [[image:1653359603330-121.png]]
1794	1794
1795		-(((
	1439	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
	1440	+
	1441	+
1796	1796	**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]].
	1443	+
1797	1797	**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1445	+
1798	1798	**Step3: **Open flashloader; choose the correct COM port to update.
	1447	+
	1448	+**For LT-33222-L**:
	1449	+
	1450	+Hold down the PRO button and then momentarily press the RST reset button and the **DO2 led** will change from OFF to ON. When **DO2 LED** is on, it means the device is in download mode.
	1451	+
1799	1799	**For LT-22222-L**:
	1453	+
1800	1800	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.
	1455	+
	1456	+
	1457	+
	1458	+|(((
	1459	+Board detected
1801	1801	)))
1802	1802
1803		- [[image:image-20220524103407-12.png]]
	1462	+|(((
	1463	+
	1464	+)))
1804	1804
1805		-[[image:image-20220524103429-13.png]]
	1466	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]]
1806	1806
1807		-[[image:image-20220524104033-15.png]]
1808	1808
1809		-(% style="color:red" %)**Notice**(%%): In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1810	1810
1811		-[[image:1653360054704-518.png||height="186" width="745"]]
	1470	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]]
1812	1812
1813	1813
1814		-(((
1815		-(((
1816		-== 5.2 How to change the LoRa Frequency Bands/Region? ==
1817		-)))
1818		-)))
	1473	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image037.png]]
1819	1819
1820		-(((
1821		-User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1822	1822
1823		-
1824		-)))
	1476	+**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1825	1825
1826		-(((
1827		-== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1828		-)))
	1478	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1829	1829
1830		-(((
1831		-(((
	1480	+
	1481	+1.
	1482	+11. How to change the LoRa Frequency Bands/Region?
	1483	+
	1484	+User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
	1485	+
	1486	+
	1487	+1.
	1488	+11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
	1489	+
1832	1832	In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1833		-)))
1834		-)))
1835	1835
1836		-(((
1837		-(((
1838	1838	Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1839		-)))
1840		-)))
1841	1841
1842		-(((
1843		-(% style="color:#4f81bd" %)**Step1**(%%): Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
1844		-)))
1845	1845
1846		-(((
1847		-[[image:1653360231087-571.png||height="401" width="727"]]
1848		-)))
	1495	+**Step1**: Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
1849	1849
1850		-(((
1851		-(% 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.
1852		-)))
	1497	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
1853	1853
1854		-(((
1855		-(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1856		-)))
	1499	+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.
1857	1857
1858		-(((
1859		-(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1860		-(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1861		-(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1862		-(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1863		-(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1864		-(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1865		-(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1866		-(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1867		-(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1868		-(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1869		-)))
1870	1870
1871		-(((
1872		-As shown in below:
1873		-)))
	1502	+**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1874	1874
1875		-[[image:1653360498588-932.png||height="485" width="726"]]
	1504	+123456   Enter Password to have AT access.
1876	1876
	1506	+AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1877	1877
1878		-== 5.4 Can I see counting event in Serial? ==
	1508	+123456   Enter Password to have AT access.
1879	1879
1880		-(((
1881		-User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first.
	1510	+AT+NJM=0 Set to ABP mode
1882	1882
	1512	+AT+ADR=0 Set the Adaptive Data Rate Off
1883	1883
1884		-== 5.5 Can i use point to point communication for LT-22222-L? ==
	1514	+AT+DR=5  Set Data Rate (Set AT+DR=3 for 915 band)
1885	1885
1886		-Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
	1516	+AT+TDC=60000  Set transmit interval to 60 seconds
1887	1887
1888		-
1889		-)))
	1518	+AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1890	1890
1891		-(((
1892		-= 6. Trouble Shooting =
1893		-)))
	1520	+AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1
1894	1894
1895		-(((
1896		-(((
1897		-== 6.1 Downlink doesn’t work, how to solve it? ==
1898		-)))
1899		-)))
	1522	+ATZ                Reset MCU
1900	1900
1901		-(((
1902		-Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
	1524	+As shown in below:
1903	1903
1904		-
1905		-)))
	1526	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
1906	1906
1907		-(((
1908		-== 6.2 Have trouble to upload image. ==
1909		-)))
1910	1910
1911		-(((
1912		-See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1913		-)))
1914	1914
1915		-(((
1916		-
1917		-)))
	1530	+1.
	1531	+11. Can I see counting event in Serial?
1918	1918
1919		-(((
1920		-== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1921		-)))
	1533	+User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first.
1922	1922
1923		-(((
1924		-It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1925		-)))
1926	1926
1927		-(((
1928		-
1929		-)))
1930	1930
1931		-(((
1932		-= 7. Order Info =
1933		-)))
1934	1934
1935		-(((
1936		-(((
1937		-(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1938		-)))
1939		-)))
	1538	+1. Trouble Shooting
	1539	+11. Downlink doesn’t work, how to solve it?
1940	1940
1941		-(((
1942		-(((
1943		-(% style="color:#4f81bd" %)**XXX:**
1944		-)))
1945		-)))
	1541	+Please see this link for how to debug:
1946	1946
1947		-(((
1948		-* (((
1949		-(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1950		-)))
1951		-)))
	1543	+[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work]]
1952	1952
1953		-(((
1954		-* (((
1955		-(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1956		-)))
1957		-)))
1958	1958
1959		-(((
1960		-* (((
1961		-(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1962		-)))
1963		-)))
	1546	+1.
	1547	+11. Have trouble to upload image.
1964	1964
1965		-(((
1966		-* (((
1967		-(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1968		-)))
1969		-)))
	1549	+See this link for trouble shooting:
1970	1970
1971		-(((
1972		-* (((
1973		-(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1974		-)))
1975		-)))
	1551	+[[http:~~/~~/wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting]]
1976	1976
1977		-(((
1978		-* (((
1979		-(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1980		-)))
1981		-)))
1982	1982
1983		-(((
1984		-* (((
1985		-(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1986		-)))
1987		-)))
	1554	+1.
	1555	+11. Why I can’t join TTN in US915 /AU915 bands?
1988	1988
1989		-(((
1990		-* (((
1991		-(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1992		-)))
1993		-)))
	1557	+It might be about the channels mapping. Please see this link for detail:
1994	1994
1995		-(((
1996		-* (((
1997		-(% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
	1559	+[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1998	1998
1999		-
2000		-)))
2001	2001
2002		-= 8. Packing Info =
2003		-)))
2004	2004
2005		-(((
2006		-(((
	1563	+
	1564	+1. Order Info
	1565	+
	1566	+**For LT-33222-L-XXX or LT-22222-L-XXX:**
	1567	+
	1568	+**XXX:**
	1569	+
	1570	+* **EU433**: LT with frequency bands EU433
	1571	+* **EU868**: LT with frequency bands EU868
	1572	+* **KR920**: LT with frequency bands KR920
	1573	+* **CN470**: LT with frequency bands CN470
	1574	+* **AS923**: LT with frequency bands AS923
	1575	+* **AU915**: LT with frequency bands AU915
	1576	+* **US915**: LT with frequency bands US915
	1577	+* **IN865**: LT with frequency bands IN865
	1578	+* **CN779**: LT with frequency bands CN779
	1579	+
	1580	+1. Packing Info
	1581	+
2007	2007	**Package Includes**:
2008		-)))
2009		-)))
2010	2010
2011		-(((
2012		-(((
2013		-* LT-22222-L I/O Controller x 1
	1584	+* LT I/O Controller x 1
2014	2014	* Stick Antenna for LoRa RF part x 1
2015	2015	* Bracket for controller x1
2016	2016	* Program cable x 1
2017		-)))
2018		-)))
2019	2019
2020		-(((
2021		-(((
2022	2022	**Dimension and weight**:
2023		-)))
2024		-)))
2025	2025
2026		-(((
2027		-(((
2028	2028	* Device Size: 13.5 x 7 x 3 cm
2029	2029	* Device Weight: 105g
2030	2030	* Package Size / pcs : 14.5 x 8 x 5 cm
2031	2031	* Weight / pcs : 170g
2032	2032
2033		-
2034		-)))
2035		-)))
	1596	+1. Support
2036	2036
2037		-(((
2038		-= 9. Support =
2039		-)))
	1598	+* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
	1599	+* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
2040	2040
2041		-* (((
2042		-(((
2043		-Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
2044		-)))
2045		-)))
2046		-* (((
2047		-(((
2048		-Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
2049		-)))
2050		-)))
2051		-
2052		-(((
2053		-(((
2054		- [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2055		-
2056		-
2057		-)))
2058		-
2059		-(((
2060		-= 10. Reference​​​​​ =
2061		-
2062		-* Product Page:
2063		-
2064		-LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]
2065		-
2066		-* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
2067		-* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
2068		-* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2069		-)))
2070		-)))
	1601	+[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]

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