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:
...	...	@@ -339,9 +339,7 @@
339	339
340	340	**For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
341	341
342		-(((
343	343	Total : 11 bytes payload
344		-)))
345	345
346	346	[[image:image-20220523180452-3.png]]
347	347
...	...	@@ -355,79 +355,54 @@
355	355	* FIRST: Indicate this is the first packet after join network.
356	356	* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
357	357
358		-(((
359	359	(% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
360		-)))
361	361
362		-(((
363	363	**To use counting mode, please run:**
364		-)))
365	365
366	366	(% class="box infomessage" %)
367	367	(((
368		-(((
369	369	**AT+MOD=2**
370	370	)))
371		-)))
372	372
373	373	(% class="box infomessage" %)
374	374	(((
375		-(((
376	376	**ATZ**
377	377	)))
378		-)))
379	379
380		-(((
381	381	(% style="color:#4f81bd" %)**AT Commands for counting:**
382		-)))
383	383
384		-(((
385	385	**For LT22222-L:**
386		-)))
387	387
388	388	(% class="box infomessage" %)
389	389	(((
390		-(((
391	391	**AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
392	392	)))
393		-)))
394	394
395	395	(% class="box infomessage" %)
396	396	(((
397		-(((
398	398	**AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
399	399	)))
400		-)))
401	401
402	402	(% class="box infomessage" %)
403	403	(((
404		-(((
405	405	**AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
406	406	)))
407		-)))
408	408
409	409	(% class="box infomessage" %)
410	410	(((
411		-(((
412	412	**AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
413	413	)))
414		-)))
415	415
416	416	(% class="box infomessage" %)
417	417	(((
418		-(((
419	419	**AT+SETCNT=1,60   (Set COUNT1 value to 60)**
420	420	)))
421		-)))
422	422
423	423	(% class="box infomessage" %)
424	424	(((
425		-(((
426	426	**AT+SETCNT=2,60   (Set COUNT2 value to 60)**
427	427	)))
428		-)))
429	429
430		-
431	431	=== 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
432	432
433	433	**LT22222-L**: This mode the DI1 is used as a counting pin.
...	...	@@ -444,34 +444,22 @@
444	444	* FIRST: Indicate this is the first packet after join network.
445	445	* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
446	446
447		-(((
448	448	(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
449		-)))
450	450
451		-(((
452	452	**To use counting mode, please run:**
453		-)))
454	454
455	455	(% class="box infomessage" %)
456	456	(((
457		-(((
458	458	**AT+MOD=3**
459	459	)))
460		-)))
461	461
462	462	(% class="box infomessage" %)
463	463	(((
464		-(((
465	465	**ATZ**
466	466	)))
467		-)))
468	468
469		-(((
470		-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]].
471	471
472		-
473		-)))
474		-
475	475	=== 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
476	476
477	477	**LT22222-L**: This mode the DI1 is used as a counting pin.
...	...	@@ -490,69 +490,45 @@
490	490	* FIRST: Indicate this is the first packet after join network.
491	491	* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
492	492
493		-(((
494	494	(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
495		-)))
496	496
497		-(((
498	498	**To use this mode, please run:**
499		-)))
500	500
501	501	(% class="box infomessage" %)
502	502	(((
503		-(((
504	504	**AT+MOD=4**
505	505	)))
506		-)))
507	507
508	508	(% class="box infomessage" %)
509	509	(((
510		-(((
511	511	**ATZ**
512	512	)))
513		-)))
514	514
515		-(((
516		-
517		-)))
518	518
519		-(((
520		-Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
521		-)))
	365	+Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
522	522
523		-(((
524	524	**Plus below command for AVI1 Counting:**
525		-)))
526	526
527	527	(% class="box infomessage" %)
528	528	(((
529		-(((
530	530	**AT+SETCNT=3,60   (set AVI Count to 60)**
531	531	)))
532		-)))
533	533
534	534	(% class="box infomessage" %)
535	535	(((
536		-(((
537	537	**AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
538	538	)))
539		-)))
540	540
541	541	(% class="box infomessage" %)
542	542	(((
543		-(((
544	544	**AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
545	545	)))
546		-)))
547	547
548	548	(% class="box infomessage" %)
549	549	(((
550		-(((
551	551	**AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
552	552	)))
553		-)))
554	554
555		-
556	556	=== 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
557	557
558	558	**LT22222-L**: This mode the DI1 is used as a counting pin.
...	...	@@ -565,38 +565,24 @@
565	565
566	566	* RO is for relay. ROx=1 : close，ROx=0 always open.
567	567	* FIRST: Indicate this is the first packet after join network.
568		-* (((
569		-DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
570		-)))
	401	+* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
571	571
572		-(((
573	573	(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
574		-)))
575	575
576		-(((
577	577	**To use this mode, please run:**
578		-)))
579	579
580	580	(% class="box infomessage" %)
581	581	(((
582		-(((
583	583	**AT+MOD=5**
584	584	)))
585		-)))
586	586
587	587	(% class="box infomessage" %)
588	588	(((
589		-(((
590	590	**ATZ**
591	591	)))
592		-)))
593	593
594		-(((
595		-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]].
596	596
597		-
598		-)))
599		-
600	600	=== 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
601	601
602	602	(% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
...	...	@@ -623,7 +623,6 @@
623	623
624	624	AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
625	625
626		-
627	627	(% style="color:#4f81bd" %)**Trigger base on current**:
628	628
629	629	Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
...	...	@@ -632,7 +632,6 @@
632	632
633	633	AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
634	634
635		-
636	636	(% style="color:#4f81bd" %)**Trigger base on DI status**:
637	637
638	638	DI status trigger Flag.
...	...	@@ -646,7 +646,7 @@
646	646
647	647	**Downlink Command to set Trigger Condition**
648	648
649		-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]]
650	650
651	651	Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
652	652
...	...	@@ -666,7 +666,7 @@
666	666
667	667	Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
668	668
669		-**Example2**: AA 02 01 00
	486	+Example2: AA 02 01 00
670	670
671	671	Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
672	672
...	...	@@ -719,13 +719,10 @@
719	719
720	720	When device got this command, it will send the MOD6 payload.
721	721
722		-
723	723	=== 3.3.7 Payload Decoder ===
724	724
725	725	(((
726	726	**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/]]
727		-
728		-
729	729	)))
730	730
731	731	== 3.4 ​Configure LT via AT or Downlink ==
...	...	@@ -736,15 +736,14 @@
736	736	There are two kinds of Commands:
737	737	)))
738	738
739		-* (% 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
740	740
741	741	* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
742	742
743	743	=== 3.4.1 Common Commands ===
744	744
745		-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/]]
746	746
747		-
748	748	=== 3.4.2 Sensor related commands ===
749	749
750	750	==== 3.4.2.1 Set Transmit Interval ====
...	...	@@ -788,7 +788,6 @@
788	788	**0x0A aa     ~/~/ Same as AT+MOD=aa**
789	789	)))
790	790
791		-
792	792	==== 3.4.2.3 Poll an uplink ====
793	793
794	794	* AT Command:
...	...	@@ -807,7 +807,7 @@
807	807
808	808	==== 3.4.2.4 Enable Trigger Mode ====
809	809
810		-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]]
811	811
812	812	* AT Command:
813	813
...	...	@@ -820,15 +820,13 @@
820	820
821	821	0: Disable Trigger Mode
822	822
	635	+
823	823	* Downlink Payload (prefix 0x0A 06):
824	824
825		-(% class="box infomessage" %)
826		-(((
827		-**0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
828		-)))
	638	+0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,
829	829
830	830
831		-==== 3.4.2.5 Poll trigger settings ====
	641	+==== Poll trigger settings ====
832	832
833	833	Poll trigger settings,
834	834
...	...	@@ -836,347 +836,339 @@
836	836
837	837	There is no AT Command for this feature.
838	838
	649	+
839	839	* Downlink Payload (prefix 0x AB 06):
840	840
841		-(% class="box infomessage" %)
842		-(((
843		-**0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
844		-)))
	652	+0xAB 06  ~/~/ Poll trigger settings, device will uplink [[trigger settings>>path:#Trigger_Settings]] once receive this command
845	845
846	846
847		-==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
	655	+==== Enable / Disable DI1/DI2/DI3 as trigger ====
848	848
849	849	Enable Disable DI1/DI2/DI2 as trigger,
850	850
851	851	* AT Command:
852	852
853		-(% class="box infomessage" %)
854		-(((
855		-**Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
856		-)))
	661	+Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >
857	857
858		-**Example:**
	663	+Example:
859	859
860	860	AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
861	861
	667	+
	668	+
862	862	* Downlink Payload (prefix 0xAA 02):
863	863
864		-(% class="box infomessage" %)
865		-(((
866		-**0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
867		-)))
	671	+0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb
868	868
869	869
870		-==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
871	871
	675	+==== Trigger1 – Set DI1 or DI3 as trigger ====
	676	+
872	872	Set DI1 or DI3(for LT-33222-L) trigger.
873	873
874	874	* AT Command:
875	875
876		-(% class="box infomessage" %)
877		-(((
878		-**AT+TRIG1=a,b**
879		-)))
	681	+AT+TRIG1=a,b
880	880
881	881	a : Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
882	882
883	883	b : delay timing.
884	884
885		-**Example:**
	687	+Example:
886	886
887	887	AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
888	888
	691	+
889	889	* Downlink Payload (prefix 0x09 01 ):
890	890
891		-(% class="box infomessage" %)
892		-(((
893		-**0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
894		-)))
	694	+0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)
895	895
896	896
897		-==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
	697	+==== Trigger2 – Set DI2 as trigger ====
898	898
899	899	Set DI2 trigger.
900	900
901	901	* AT Command:
902	902
903		-(% class="box infomessage" %)
904		-(((
905		-**AT+TRIG2=a,b**
906		-)))
	703	+AT+TRIG2=a,b
907	907
908	908	a : Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
909	909
910	910	b : delay timing.
911	911
912		-**Example:**
	709	+Example:
913	913
914	914	AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
915	915
	713	+
916	916	* Downlink Payload (prefix 0x09 02 ):
917	917
918		-(% class="box infomessage" %)
919		-(((
920		-**0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
921		-)))
	716	+0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)
922	922
923	923
924		-==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
	719	+==== Trigger – Set AC (current) as trigger ====
925	925
926		-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]]
927	927
928	928	* AT Command:
929	929
930		-(% class="box infomessage" %)
931		-(((
932		-**AT+ACLIM. **
933		-)))
	725	+AT+ACLIM. See [[trigger mode>>path:#MOD6]]
934	934
	727	+
935	935	* Downlink Payload (prefix 0xAA 01 ):
936	936
937		-(% class="box infomessage" %)
938		-(((
939		-**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
940		-)))
	730	+0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>path:#MOD6]]
941	941
942	942
943		-==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
	733	+==== Trigger – Set AV (voltage) as trigger ====
944	944
945		-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]]
946	946
947	947	* AT Command:
948	948
949		-(% class="box infomessage" %)
950		-(((
951		-**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
952		-)))
	739	+AT+AVLIM. See [[trigger mode>>path:#MOD6]]
953	953
	741	+
954	954	* Downlink Payload (prefix 0xAA 00 ):
955	955
956		-(% class="box infomessage" %)
957		-(((
958		-**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
959		-)))
	744	+0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>path:#MOD6]]
960	960
	746	+==== Trigger – Set minimum interval ====
961	961
962		-==== 3.4.2.11 Trigger – Set minimum interval ====
963		-
964	964	Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
965	965
966	966	* AT Command:
967	967
968		-(% class="box infomessage" %)
969		-(((
970		-**AT+ATDC=5. Device won’t response the second trigger within 5 minute after the first trigger.**
971		-)))
	752	+AT+ATDC=5. Device won’t response the second trigger within 5 minute after the first trigger.
972	972
	754	+
973	973	* Downlink Payload (prefix 0xAC ):
974	974
975		-(% class="box infomessage" %)
976		-(((
977		-**0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
978		-)))
	757	+0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
979	979
980	980
981		-==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
	760	+==== DO ~-~- Control Digital Output DO1/DO2/DO3 ====
982	982
983	983	* AT Command:
984	984
985	985	There is no AT Command to control Digital Output
986	986
	766	+
987	987	* Downlink Payload (prefix 0x02):
988	988
989		-(% class="box infomessage" %)
990		-(((
991		-**0x02 aa bb cc     ~/~/ Set DO1/DO2/DO3 output**
992		-)))
	769	+0x02 aa bb cc     ~/~/ Set DO1/DO2/DO3 output
993	993
994		-(((
995	995	If payload = 0x02010001, while there is load between V+ and DOx, it means set DO1 to low, DO2 to high and DO3 to low.
996		-)))
997	997
998		-(((
999	999	01: Low,  00: High ,  11: No action
1000		-)))
1001	1001
1002		-[[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
1003	1003
1004		-(((
1005		-(% style="color:red" %)Note: For LT-22222-L, there is no DO3, the last byte can use any value.
1006		-)))
	781	+Note: For LT-22222-L, there is no DO3, the last byte can use any value.
1007	1007
1008		-(((
1009		-(% style="color:red" %)Device will upload a packet if downlink code executes successfully.
1010		-)))
	783	+Device will upload a packet if downlink code executes successfully.
1011	1011
1012	1012
1013		-==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
1014	1014
	787	+
	788	+
	789	+==== DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
	790	+
1015	1015	* AT Command:
1016	1016
1017	1017	There is no AT Command to control Digital Output
1018	1018
	795	+
1019	1019	* Downlink Payload (prefix 0xA9):
1020	1020
1021		-(% class="box infomessage" %)
1022		-(((
1023		-(((
1024		-**0xA9 aa bb cc     ~/~/ Set DO1/DO2/DO3 output with time control**
1025		-)))
1026		-)))
	798	+0xA9 aa bb cc     ~/~/ Set DO1/DO2/DO3 output with time control
1027	1027
1028	1028	This is to control the digital output time of DO pin. Include four bytes:
1029	1029
1030		-(% style="color:#4f81bd" %)**First Byte**(%%)**:** Type code (0xA9)
	802	+**First Byte:** Type code (0xA9)
1031	1031
1032		-(% style="color:#4f81bd" %)**Second Byte**(%%): Inverter Mode
	804	+**Second Byte**: Inverter Mode
1033	1033
1034	1034	01: DO pins will change back to original state after timeout.
1035	1035
1036	1036	00: DO pins will change to an inverter state after timeout
1037	1037
1038		-(% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1039	1039
1040		-[[image:image-20220524093238-6.png]]
	811	+**Third Byte**: Control Method and Ports status:
1041	1041
1042		-(% 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
1043	1043
1044		-[[image:image-20220524093328-7.png]]
	819	+**Fourth Byte**: Control Method and Ports status:
1045	1045
1046		-(% 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
1047	1047
1048		-[[image:image-20220524093351-8.png]]
	827	+**Fifth Byte**: Control Method and Ports status:
1049	1049
1050		-(% 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
1051	1051
	835	+**Sixth and Seventh Byte**:
	836	+
1052	1052	Latching time. Unit: ms
1053	1053
1054	1054	Device will upload a packet if downlink code executes successfully.
1055	1055
1056		-**Example payload:**
1057	1057
1058		-**~1. A9 01 01 01 01 07 D0**
1059	1059
	843	+Example payload:
	844	+
	845	+1. A9 01 01 01 01 07 D0
	846	+
1060	1060	DO1 pin & DO2 pin & DO3 pin will be set to Low, last 2 seconds, then change back to original state.
1061	1061
1062		-**2. A9 01 00 01 11 07 D0**
1063	1063
	850	+1. A9 01 00 01 11 07 D0
	851	+
1064	1064	DO1 pin set high, DO2 pin set low, DO3 pin no action, last 2 seconds, then change back to original state.
1065	1065
1066		-**3. A9 00 00 00 00 07 D0**
1067	1067
	855	+1. A9 00 00 00 00 07 D0
	856	+
1068	1068	DO1 pin & DO2 pin & DO3 pin will be set to high, last 2 seconds, then both change to low.
1069	1069
1070		-**4. A9 00 11 01 00 07 D0**
1071	1071
	860	+1. A9 00 11 01 00 07 D0
	861	+
1072	1072	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
1073	1073
1074	1074
1075		-=== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
1076	1076
	866	+
	867	+==== Relay ~-~- Control Relay Output RO1/RO2 ====
	868	+
1077	1077	* AT Command:
1078	1078
1079	1079	There is no AT Command to control Relay Output
1080	1080
	873	+
1081	1081	* Downlink Payload (prefix 0x03):
1082	1082
1083		-(% class="box infomessage" %)
1084		-(((
1085		-**0x03 aa bb     ~/~/ Set RO1/RO2 output**
1086		-)))
	876	+0x03 aa bb     ~/~/ Set RO1/RO2 output
1087	1087
1088		-(((
1089	1089	If payload = 0x030100, it means set RO1 to close and RO2 to open.
1090		-)))
1091	1091
1092		-(((
1093	1093	01: Close ,  00: Open , 11: No action
1094		-)))
1095	1095
1096		-(((
1097		-[[image:image-20220524093724-9.png]]
1098		-)))
	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
1099	1099
1100	1100	Device will upload a packet if downlink code executes successfully.
1101	1101
1102	1102
1103		-==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
	896	+==== Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1104	1104
1105	1105	* AT Command:
1106	1106
1107	1107	There is no AT Command to control Relay Output
1108	1108
	902	+
1109	1109	* Downlink Payload (prefix 0x05):
1110	1110
1111		-(% class="box infomessage" %)
1112		-(((
1113		-**0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:**
1114		-)))
	905	+0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:
1115	1115
1116	1116	This is to control the relay output time of relay. Include four bytes:
1117	1117
1118		-(% style="color:#4f81bd" %)**First Byte **(%%)**:** Type code (0x05)
	909	+**First Byte:** Type code (0x05)
1119	1119
1120		-(% style="color:#4f81bd" %)**Second Byte(aa)**(%%): Inverter Mode
	911	+**Second Byte(aa)**: Inverter Mode
1121	1121
1122	1122	01: Relays will change back to original state after timeout.
1123	1123
1124	1124	00: Relays will change to an inverter state after timeout
1125	1125
1126		-(% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1127	1127
1128		-[[image:image-20220524093831-10.png]]
	918	+**Third Byte(bb)**: Control Method and Ports status:
1129	1129
1130		-(% 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
1131	1131
	931	+**Fourth / Fifth Bytes (cc)**: Latching time. Unit: ms
	932	+
1132	1132	Device will upload a packet if downlink code executes successfully.
1133	1133
	935	+
	936	+
1134	1134	**Example payload:**
1135	1135
1136		-**~1. 05 01 11 07 D0**
	939	+1. 05 01 11 07 D0
1137	1137
1138	1138	Relay1 and Relay 2 will be set to NO , last 2 seconds, then change back to original state.
1139	1139
1140		-**2. 05 01 10 07 D0**
1141	1141
	944	+1. 05 01 10 07 D0
	945	+
1142	1142	Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then both change back to original state.
1143	1143
1144		-**3. 05 00 01 07 D0**
1145	1145
	949	+1. 05 00 01 07 D0
	950	+
1146	1146	Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then relay change to NO, Relay2 change to NC.
1147	1147
1148		-**4. 05 00 00 07 D0**
1149	1149
	954	+1. 05 00 00 07 D0
	955	+
1150	1150	Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1151	1151
1152	1152
1153		-==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1154	1154
1155		-When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1156	1156
	961	+
	962	+
	963	+==== Counting ~-~- Voltage threshold counting ====
	964	+
	965	+When voltage exceed the threshold, count. Feature see [[MOD4>>path:#MOD4]]
	966	+
1157	1157	* AT Command:
1158	1158
1159		-(% class="box infomessage" %)
1160		-(((
1161		-**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1162		-)))
	969	+AT+VOLMAX    ~/~/ See [[MOD4>>path:#MOD4]]
1163	1163
	971	+
1164	1164	* Downlink Payload (prefix 0xA5):
1165	1165
1166		-(% class="box infomessage" %)
1167		-(((
1168		-**0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1169		-)))
	974	+0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc
1170	1170
1171	1171
1172		-==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
	977	+==== Counting ~-~- Pre-configure the Count Number ====
1173	1173
1174	1174	* AT Command:
1175	1175
1176		-(% class="box infomessage" %)
1177		-(((
1178		-**AT+SETCNT=aa,(bb cc dd ee) **
1179		-)))
	981	+AT+SETCNT=aa,(bb cc dd ee)
1180	1180
1181	1181	aa: 1: Set count1,
1182	1182
...	...	@@ -1186,234 +1186,182 @@
1186	1186
1187	1187	Bb cc dd ee: number to be set
1188	1188
	991	+
1189	1189	* Downlink Payload (prefix 0xA8):
1190	1190
1191		-(% class="box infomessage" %)
1192		-(((
1193		-**0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1194		-)))
	994	+0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
1195	1195
1196	1196
1197		-==== 3.4.2.18 Counting ~-~- Clear Counting ====
1198	1198
	998	+
	999	+
	1000	+==== Counting ~-~- Clear Counting ====
	1001	+
1199	1199	Clear counting for counting mode
1200	1200
1201	1201	* AT Command:
1202	1202
1203		-(% class="box infomessage" %)
1204		-(((
1205		-**AT+CLRCOUNT ~/~/ clear all counting**
1206		-)))
	1006	+AT+CLRCOUNT ~/~/ clear all counting
1207	1207
	1008	+
1208	1208	* Downlink Payload (prefix 0xA6):
1209	1209
1210		-(% class="box infomessage" %)
1211		-(((
1212		-**0x A6 01     ~/~/ clear all counting,**
1213		-)))
	1011	+0x A6 01     ~/~/ clear all counting,
1214	1214
1215	1215
1216		-==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1217	1217
	1015	+
	1016	+==== Counting ~-~- Change counting mode save time ====
	1017	+
1218	1218	* AT Command:
1219	1219
1220		-(% class="box infomessage" %)
1221		-(((
1222		-**AT+COUTIME=60  ~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)**
1223		-)))
	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)
1224	1224
	1022	+
1225	1225	* Downlink Payload (prefix 0xA7):
1226	1226
1227		-(% class="box infomessage" %)
1228		-(((
1229		-**0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,**
1230		-)))
	1025	+0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,
1231	1231
1232		-(((
1233	1233	range: aa bb cc:0 to 16777215,  (unit:second)
1234	1234
1235		-
1236		-)))
1237	1237
1238		-== 3.5 Integrate with Mydevice ==
1239	1239
	1031	+
	1032	+1.
	1033	+11. Integrate with Mydevice
	1034	+
1240	1240	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:
1241	1241
1242		-(((
1243		-**Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1244		-)))
1245	1245
1246		-(((
1247		-**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:
1248		-)))
	1038	+Step 1: Be sure that your device is programmed and properly connected to the network at this time.
1249	1249
1250		-[[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:
1251	1251
1252		-[[image:image-20220524094641-11.png||height="390" width="723"]]
1253	1253
1254		-[[image:image-20220524094641-12.png||height="402" width="718"]]
	1043	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
1255	1255
1256	1256
1257		-**Step 3**: Create an account or log in Mydevices.
	1046	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
1258	1258
1259		-**Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1260	1260
	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	+
1261	1261	Search under The things network
1262	1262
1263		-[[image:1653356838789-523.png||height="337" width="740"]]
	1059	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
1264	1264
1265	1265
1266	1266	After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1267	1267
1268		-[[image:image-20220524094909-1.png||height="335" width="729"]]
	1064	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
1269	1269
1270		-[[image:image-20220524094909-2.png||height="337" width="729"]]
1271	1271
1272		-[[image:image-20220524094909-3.png||height="338" width="727"]]
	1067	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
1273	1273
1274		-[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1275	1275
1276		-[[image:image-20220524094909-5.png||height="341" width="734"]]
	1070	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
1277	1277
1278	1278
1279		-== 3.6 Interface Detail ==
	1073	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
1280	1280
1281		-=== 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1282	1282
	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	+
1283	1283	Support NPN Type sensor
1284	1284
1285		-[[image:1653356991268-289.png]]
	1085	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
1286	1286
1287	1287
1288		-=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1289	1289
1290		-(((
	1089	+1.
	1090	+11.
	1091	+111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
	1092	+
1291	1291	The DI port of LT-22222-L can support NPN or PNP output sensor.
1292		-)))
1293	1293
1294		-(((
1295		-(((
1296	1296	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
1297		-)))
1298		-)))
1299	1299
1300		-[[image:1653357170703-587.png]]
	1097	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
1301	1301
1302		-(((
1303		-(((
1304	1304	When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1305		-)))
1306		-)))
1307	1307
1308		-(((
1309		-
1310		-)))
1311	1311
1312		-(((
1313	1313	**Example1**: Connect to a Low active sensor.
1314		-)))
1315	1315
1316		-(((
1317	1317	This type of sensor will output a low signal GND when active.
1318		-)))
1319	1319
1320		-* (((
1321		-Connect sensor’s output to DI1-
1322		-)))
1323		-* (((
1324		-Connect sensor’s VCC to DI1+.
1325		-)))
	1106	+* Connect sensor’s output to DI1-
	1107	+* Connect sensor’s VCC to DI1+.
1326	1326
1327		-(((
1328		-So when sensor active, the current between NEC2501 pin1 and pin2 is：
1329		-)))
	1109	+So when sensor active, the current between NEC2501 pin1 and pin2 is:
1330	1330
1331		-(((
1332		-[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1333		-)))
	1111	+ //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1334	1334
1335		-(((
1336		-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.
1337		-)))
	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.
1338	1338
1339		-(((
1340		-
1341		-)))
1342	1342
1343		-(((
1344	1344	**Example2**: Connect to a High active sensor.
1345		-)))
1346	1346
1347		-(((
1348	1348	This type of sensor will output a high signal (example 24v) when active.
1349		-)))
1350	1350
1351		-* (((
1352		-Connect sensor’s output to DI1+
1353		-)))
1354		-* (((
1355		-Connect sensor’s GND DI1-.
1356		-)))
	1120	+* Connect sensor’s output to DI1+
	1121	+* Connect sensor’s GND DI1-.
1357	1357
1358		-(((
1359	1359	So when sensor active, the current between NEC2501 pin1 and pin2 is:
1360		-)))
1361	1361
1362		-(((
1363		-[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1364		-)))
	1125	+ //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1365	1365
1366		-(((
1367		-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.
1368		-)))
	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.
1369	1369
1370		-(((
1371		-
1372		-)))
1373	1373
1374		-(((
1375		-**Example3**: Connect to a 220v high active sensor.
1376		-)))
	1130	+**Example3**: Connect to a 220v high active sensor.公司测试一下
1377	1377
1378		-(((
1379	1379	Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler
1380		-)))
1381	1381
1382		-* (((
1383		-Connect sensor’s output to DI1+ with a serial 50K resistor
1384		-)))
1385		-* (((
1386		-Connect sensor’s GND DI1-.
1387		-)))
	1134	+* Connect sensor’s output to DI1+ with a serial 50K resistor
	1135	+* Connect sensor’s GND DI1-.
1388	1388
1389		-(((
1390	1390	So when sensor active, the current between NEC2501 pin1 and pin2 is:
1391		-)))
1392	1392
1393		-(((
1394		- [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1395		-)))
	1139	+ //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 51K.
1396	1396
1397		-(((
1398		-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.
1399		-)))
	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.
1400	1400
1401	1401
1402		-=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
	1144	+1.
	1145	+11.
	1146	+111. Digital Output Port: DO1/DO2 /DO3
1403	1403
1404	1404	NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1405	1405
1406		-[[image:1653357531600-905.png]]
	1150	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1407	1407
1408	1408
1409		-=== 3.6.4 Analog Input Interface ===
1410	1410
	1154	+
	1155	+1.
	1156	+11.
	1157	+111. Analog Input Interface
	1158	+
1411	1411	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:
1412	1412
1413		-**AC2 = (IN2 voltage )/12**
	1161	+AC2 = (IN2 voltage )/12
1414	1414
1415		-[[image:1653357592296-182.png]]
	1163	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
1416	1416
	1165	+
	1166	+
1417	1417	Example to connect a 4~~20mA sensor
1418	1418
1419	1419	We take the wind speed sensor as an example for reference only.
...	...	@@ -1429,639 +1429,423 @@
1429	1429
1430	1430	Connection diagram:
1431	1431
1432		-[[image:1653357640609-758.png]]
	1182	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg]]
1433	1433
1434		-[[image:1653357648330-671.png||height="155" width="733"]]
	1184	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1435	1435
1436	1436
1437		-=== 3.6.5 Relay Output ===
1438	1438
1439		-(((
	1188	+1.
	1189	+11.
	1190	+111. Relay Output
	1191	+
1440	1440	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:
1441		-)))
1442	1442
1443		-[[image:image-20220524100215-9.png]]
	1194	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1444	1444
1445		-[[image:image-20220524100215-10.png||height="382" width="723"]]
1446	1446
	1197	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1447	1447
1448		-== 3.7 LEDs Indicators ==
1449	1449
1450		-[[image:image-20220524100748-11.png]]
1451	1451
1452	1452
1453		-= 4. Use AT Command =
1454	1454
1455		-== 4.1 Access AT Command ==
	1203	+1.
	1204	+11. LEDs Indicators
1456	1456
1457		-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.
1458	1458
1459		-[[image:1653358238933-385.png]]
	1213	+Successful join network: TX ON for 5 seconds.
1460	1460
1461		-(((
1462		-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
1463	1463	)))
	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
1464	1464
1465		-[[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
1466	1466
1467		-(((
1468		-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
1469	1469	)))
	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
1470	1470
1471		-(((
1472		-AT+<CMD>?        : Help on <CMD>
	1235	+For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1473	1473	)))
	1237	+|**RO1**|
	1238	+|**RO2**|
1474	1474
1475		-(((
	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	+
1476	1476	AT+<CMD>         : Run <CMD>
1477		-)))
1478	1478
1479		-(((
1480	1480	AT+<CMD>=<value> : Set the value
1481		-)))
1482	1482
1483		-(((
1484	1484	AT+<CMD>=?       : Get the value
1485		-)))
1486	1486
1487		-(((
1488	1488	ATZ: Trig a reset of the MCU
1489		-)))
1490	1490
1491		-(((
1492	1492	AT+FDR: Reset Parameters to Factory Default, Keys Reserve
1493		-)))
1494	1494
1495		-(((
1496	1496	AT+DEUI: Get or Set the Device EUI
1497		-)))
1498	1498
1499		-(((
1500	1500	AT+DADDR: Get or Set the Device Address
1501		-)))
1502	1502
1503		-(((
1504	1504	AT+APPKEY: Get or Set the Application Key
1505		-)))
1506	1506
1507		-(((
1508	1508	AT+NWKSKEY: Get or Set the Network Session Key
1509		-)))
1510	1510
1511		-(((
1512	1512	AT+APPSKEY: Get or Set the Application Session Key
1513		-)))
1514	1514
1515		-(((
1516	1516	AT+APPEUI: Get or Set the Application EUI
1517		-)))
1518	1518
1519		-(((
1520	1520	AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1521		-)))
1522	1522
1523		-(((
1524	1524	AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1525		-)))
1526	1526
1527		-(((
1528	1528	AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)
1529		-)))
1530	1530
1531		-(((
1532	1532	AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1533		-)))
1534	1534
1535		-(((
1536	1536	AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1537		-)))
1538	1538
1539		-(((
1540	1540	AT+RX2FQ: Get or Set the Rx2 window frequency
1541		-)))
1542	1542
1543		-(((
1544	1544	AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1545		-)))
1546	1546
1547		-(((
1548	1548	AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1549		-)))
1550	1550
1551		-(((
1552	1552	AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1553		-)))
1554	1554
1555		-(((
1556	1556	AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1557		-)))
1558	1558
1559		-(((
1560	1560	AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1561		-)))
1562	1562
1563		-(((
1564	1564	AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1565		-)))
1566	1566
1567		-(((
1568	1568	AT+NWKID: Get or Set the Network ID
1569		-)))
1570	1570
1571		-(((
1572	1572	AT+FCU: Get or Set the Frame Counter Uplink
1573		-)))
1574	1574
1575		-(((
1576	1576	AT+FCD: Get or Set the Frame Counter Downlink
1577		-)))
1578	1578
1579		-(((
1580	1580	AT+CLASS: Get or Set the Device Class
1581		-)))
1582	1582
1583		-(((
1584	1584	AT+JOIN: Join network
1585		-)))
1586	1586
1587		-(((
1588	1588	AT+NJS: Get OTAA Join Status
1589		-)))
1590	1590
1591		-(((
1592	1592	AT+SENDB: Send hexadecimal data along with the application port
1593		-)))
1594	1594
1595		-(((
1596	1596	AT+SEND: Send text data along with the application port
1597		-)))
1598	1598
1599		-(((
1600	1600	AT+RECVB: Print last received data in binary format (with hexadecimal values)
1601		-)))
1602	1602
1603		-(((
1604	1604	AT+RECV: Print last received data in raw format
1605		-)))
1606	1606
1607		-(((
1608	1608	AT+VER: Get current image version and Frequency Band
1609		-)))
1610	1610
1611		-(((
1612	1612	AT+CFM: Get or Set the confirmation mode (0-1)
1613		-)))
1614	1614
1615		-(((
1616	1616	AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1617		-)))
1618	1618
1619		-(((
1620	1620	AT+SNR: Get the SNR of the last received packet
1621		-)))
1622	1622
1623		-(((
1624	1624	AT+RSSI: Get the RSSI of the last received packet
1625		-)))
1626	1626
1627		-(((
1628	1628	AT+TDC: Get or set the application data transmission interval in ms
1629		-)))
1630	1630
1631		-(((
1632	1632	AT+PORT: Get or set the application port
1633		-)))
1634	1634
1635		-(((
1636	1636	AT+DISAT: Disable AT commands
1637		-)))
1638	1638
1639		-(((
1640	1640	AT+PWORD: Set password, max 9 digits
1641		-)))
1642	1642
1643		-(((
1644	1644	AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1645		-)))
1646	1646
1647		-(((
1648	1648	AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1649		-)))
1650	1650
1651		-(((
1652	1652	AT+CFG: Print all settings
1653	1653
1654		-
1655		-)))
1656	1656
1657		-== 4.2 Common AT Command Sequence ==
1658	1658
1659		-=== 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)
1660	1660
1661		-(((
1662	1662	If device has not joined network yet:
1663		-)))
1664	1664
1665		-(((
1666		-(% style="background-color:#dcdcdc" %)123456
1667		-)))
	1355	+123456
1668	1668
1669		-(((
1670		-(% style="background-color:#dcdcdc" %)AT+FDR
1671		-)))
	1357	+AT+FDR
1672	1672
1673		-(((
1674		-(% style="background-color:#dcdcdc" %)123456
1675		-)))
	1359	+123456
1676	1676
1677		-(((
1678		-(% style="background-color:#dcdcdc" %)AT+NJM=0
1679		-)))
	1361	+AT+NJM=0
1680	1680
1681		-(((
1682		-(% style="background-color:#dcdcdc" %)ATZ
1683		-)))
	1363	+ATZ
1684	1684
1685	1685
1686		-(((
1687	1687	If device already joined network:
1688		-)))
1689	1689
1690		-(((
1691		-(% style="background-color:#dcdcdc" %)AT+NJM=0
1692		-)))
	1368	+AT+NJM=0
1693	1693
1694		-(((
1695		-(% style="background-color:#dcdcdc" %)ATZ
	1370	+ATZ
1696	1696
1697		-
1698		-)))
	1372	+1.
	1373	+11.
	1374	+111. Single-channel ABP mode (Use with LG01/LG02)
1699	1699
1700		-=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
	1376	+123456   Enter Password to have AT access.
1701	1701
1702		-(((
1703		-(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1704		-)))
	1378	+AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1705	1705
1706		-(((
1707		-(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1708		-)))
	1380	+123456   Enter Password to have AT access.
1709	1709
1710		-(((
1711		-(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1712		-)))
	1382	+AT+CLASS=C Set to work in CLASS C
1713	1713
1714		-(((
1715		-(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1716		-)))
	1384	+AT+NJM=0 Set to ABP mode
1717	1717
1718		-(((
1719		-(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1720		-)))
	1386	+AT+ADR=0 Set the Adaptive Data Rate Off
1721	1721
1722		-(((
1723		-(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1724		-)))
	1388	+AT+DR=5  Set Data Rate
1725	1725
1726		-(((
1727		-(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1728		-)))
	1390	+AT+TDC=60000  Set transmit interval to 60 seconds
1729	1729
1730		-(((
1731		-(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1732		-)))
	1392	+AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1733	1733
1734		-(((
1735		-(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1736		-)))
	1394	+AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1737	1737
1738		-(((
1739		-(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1740		-)))
	1396	+AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1741	1741
1742		-(((
1743		-(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1744		-)))
	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.
1745	1745
1746		-(((
1747		-(% 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.
1748		-)))
	1400	+ATZ          Reset MCU
1749	1749
1750		-(((
1751		-(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1752		-)))
	1402	+**Note:**
1753	1753
1754		-(((
1755		-(% style="color:red" %)**Note:**
1756		-)))
	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
1757	1757
1758		-(((
1759		-(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1760		-2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1761		-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.
1762		-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
1763		-)))
	1409	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1764	1764
1765		-(((
1766		-[[image:1653359097980-169.png||height="188" width="729"]]
1767		-)))
1768	1768
1769		-(((
1770		-
1771		-)))
	1412	+1.
	1413	+11.
	1414	+111. Change to Class A
1772	1772
1773		-=== 4.2.3 Change to Class A ===
1774		-
1775	1775	If sensor JOINED
1776		-(% style="background-color:#dcdcdc" %)AT+CLASS=A
	1417	+
	1418	+AT+CLASS=A
	1419	+
1777	1777	ATZ
1778	1778
1779	1779
1780		-= 5. FAQ =
1781	1781
1782		-== 5.1 How to upgrade the image? ==
1783	1783
	1425	+
	1426	+1. FAQ
	1427	+
	1428	+1.
	1429	+11. How to upgrade the image?
	1430	+
1784	1784	The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1785	1785
1786	1786	* Support new features
1787	1787	* For bug fix
1788	1788	* Change LoRaWAN bands.
	1436	+
1789	1789	Below shows the hardware connection for how to upload an image to the LT:
1790		-* [[image:1653359603330-121.png]]
1791	1791
1792		-(((
	1439	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
	1440	+
	1441	+
1793	1793	**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	+
1794	1794	**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1445	+
1795	1795	**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	+
1796	1796	**For LT-22222-L**:
	1453	+
1797	1797	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
1798	1798	)))
1799	1799
1800		- [[image:image-20220524103407-12.png]]
	1462	+|(((
	1463	+
	1464	+)))
1801	1801
1802		-[[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]]
1803	1803
1804		-[[image:image-20220524104033-15.png]]
1805	1805
1806		-(% 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:
1807	1807
1808		-[[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]]
1809	1809
1810	1810
1811		-(((
1812		-(((
1813		-== 5.2 How to change the LoRa Frequency Bands/Region? ==
1814		-)))
1815		-)))
	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]]
1816	1816
1817		-(((
1818		-User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1819	1819
1820		-
1821		-)))
	1476	+**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1822	1822
1823		-(((
1824		-== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1825		-)))
	1478	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1826	1826
1827		-(((
1828		-(((
	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	+
1829	1829	In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1830		-)))
1831		-)))
1832	1832
1833		-(((
1834		-(((
1835	1835	Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1836		-)))
1837		-)))
1838	1838
1839		-(((
1840		-(% 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.
1841		-)))
1842	1842
1843		-(((
1844		-[[image:1653360231087-571.png||height="401" width="727"]]
1845		-)))
	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.
1846	1846
1847		-(((
1848		-(% 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.
1849		-)))
	1497	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
1850	1850
1851		-(((
1852		-(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1853		-)))
	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.
1854	1854
1855		-(((
1856		-(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1857		-(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1858		-(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1859		-(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1860		-(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1861		-(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1862		-(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1863		-(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1864		-(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1865		-(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1866		-)))
1867	1867
1868		-(((
1869		-As shown in below:
1870		-)))
	1502	+**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1871	1871
1872		-[[image:1653360498588-932.png||height="485" width="726"]]
	1504	+123456   Enter Password to have AT access.
1873	1873
	1506	+AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1874	1874
1875		-== 5.4 Can I see counting event in Serial? ==
	1508	+123456   Enter Password to have AT access.
1876	1876
1877		-(((
1878		-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
1879	1879
	1512	+AT+ADR=0 Set the Adaptive Data Rate Off
1880	1880
1881		-== 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)
1882	1882
1883		-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
1884	1884
1885		-
1886		-)))
	1518	+AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1887	1887
1888		-(((
1889		-= 6. Trouble Shooting =
1890		-)))
	1520	+AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1
1891	1891
1892		-(((
1893		-(((
1894		-== 6.1 Downlink doesn’t work, how to solve it? ==
1895		-)))
1896		-)))
	1522	+ATZ                Reset MCU
1897	1897
1898		-(((
1899		-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:
1900	1900
1901		-
1902		-)))
	1526	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
1903	1903
1904		-(((
1905		-== 6.2 Have trouble to upload image. ==
1906		-)))
1907	1907
1908		-(((
1909		-See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1910		-)))
1911	1911
1912		-(((
1913		-
1914		-)))
	1530	+1.
	1531	+11. Can I see counting event in Serial?
1915	1915
1916		-(((
1917		-== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1918		-)))
	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.
1919	1919
1920		-(((
1921		-It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1922		-)))
1923	1923
1924		-(((
1925		-
1926		-)))
1927	1927
1928		-(((
1929		-= 7. Order Info =
1930		-)))
1931	1931
1932		-(((
1933		-(((
1934		-(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1935		-)))
1936		-)))
	1538	+1. Trouble Shooting
	1539	+11. Downlink doesn’t work, how to solve it?
1937	1937
1938		-(((
1939		-(((
1940		-(% style="color:#4f81bd" %)**XXX:**
1941		-)))
1942		-)))
	1541	+Please see this link for how to debug:
1943	1943
1944		-(((
1945		-* (((
1946		-(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1947		-)))
1948		-)))
	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]]
1949	1949
1950		-(((
1951		-* (((
1952		-(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1953		-)))
1954		-)))
1955	1955
1956		-(((
1957		-* (((
1958		-(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1959		-)))
1960		-)))
	1546	+1.
	1547	+11. Have trouble to upload image.
1961	1961
1962		-(((
1963		-* (((
1964		-(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1965		-)))
1966		-)))
	1549	+See this link for trouble shooting:
1967	1967
1968		-(((
1969		-* (((
1970		-(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1971		-)))
1972		-)))
	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]]
1973	1973
1974		-(((
1975		-* (((
1976		-(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1977		-)))
1978		-)))
1979	1979
1980		-(((
1981		-* (((
1982		-(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1983		-)))
1984		-)))
	1554	+1.
	1555	+11. Why I can’t join TTN in US915 /AU915 bands?
1985	1985
1986		-(((
1987		-* (((
1988		-(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1989		-)))
1990		-)))
	1557	+It might be about the channels mapping. Please see this link for detail:
1991	1991
1992		-(((
1993		-* (((
1994		-(% 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]]
1995	1995
1996		-
1997		-)))
1998	1998
1999		-= 8. Packing Info =
2000		-)))
2001	2001
2002		-(((
2003		-(((
	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	+
2004	2004	**Package Includes**:
2005		-)))
2006		-)))
2007	2007
2008		-(((
2009		-(((
2010		-* LT-22222-L I/O Controller x 1
	1584	+* LT I/O Controller x 1
2011	2011	* Stick Antenna for LoRa RF part x 1
2012	2012	* Bracket for controller x1
2013	2013	* Program cable x 1
2014		-)))
2015		-)))
2016	2016
2017		-(((
2018		-(((
2019	2019	**Dimension and weight**:
2020		-)))
2021		-)))
2022	2022
2023		-(((
2024		-(((
2025	2025	* Device Size: 13.5 x 7 x 3 cm
2026	2026	* Device Weight: 105g
2027	2027	* Package Size / pcs : 14.5 x 8 x 5 cm
2028	2028	* Weight / pcs : 170g
2029	2029
2030		-
2031		-)))
2032		-)))
	1596	+1. Support
2033	2033
2034		-(((
2035		-= 9. Support =
2036		-)))
	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
2037	2037
2038		-* (((
2039		-(((
2040		-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.
2041		-)))
2042		-)))
2043		-* (((
2044		-(((
2045		-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
2046		-)))
2047		-)))
2048		-
2049		-(((
2050		-(((
2051		- [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2052		-
2053		-
2054		-)))
2055		-
2056		-(((
2057		-= 10. Reference​​​​​ =
2058		-
2059		-* Product Page:
2060		-
2061		-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]]
2062		-
2063		-* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
2064		-* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
2065		-* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2066		-)))
2067		-)))
	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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