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<
From version < 2.2 >
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on 2022/05/23 16:35
To version < 14.1 >
edited by Xiaoling
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Summary

Details

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Content
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1 1  (% style="text-align:center" %)
2 2  [[image:image-20220523163353-1.jpeg||height="604" width="500"]]
3 3  
4 +**LT-22222-L LoRa IO Controller User Manual **
4 4  
5 -1. Introduction
6 -11. What is LT Series I/O Controller
7 7  
8 8  
9 -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.
10 10  
9 += 1.Introduction =
11 11  
12 -The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
11 +== 1.1 What is LT Series I/O Controller ==
13 13  
13 +(((
14 +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.
15 +)))
14 14  
17 +(((
18 +The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
19 +)))
20 +
21 +(((
15 15  The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using LoRaWAN wireless technology.
23 +)))
16 16  
25 +(((
17 17  The use environment includes:
27 +)))
18 18  
29 +(((
19 19  1) If user’s area has LoRaWAN service coverage, they can just install the I/O controller and configure it to connect the LoRaWAN provider via wireless.
31 +)))
20 20  
33 +(((
21 21  2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
35 +)))
22 22  
37 +(((
38 +[[image:1653295757274-912.png]]
39 +)))
23 23  
24 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
41 +== 1.2  Specifications ==
25 25  
26 -
27 -
28 -
29 -1.
30 -11. Specifications
31 -
32 32  **Hardware System:**
33 33  
34 34  * STM32L072CZT6 MCU
35 -* SX1276/78 Wireless Chip
46 +* SX1276/78 Wireless Chip 
36 36  * Power Consumption:
37 37  ** Idle: 4mA@12v
38 -
39 -*
40 40  ** 20dB Transmit: 34mA@12v
41 41  
42 -
43 -**Interface for Model: LT33222-L:**
44 -
45 -* 3 x Digital Input ( Detect Low signal , Max, 6V)
46 -* 3 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
47 -* 2 x Relay Output (5A@250VAC / 30VDC)
48 -* 2 x 0~~20mA Analog Input (res:0.01mA)
49 -* 2 x 0~~30V Analog Input (res:0.01v)
50 -* Power Input 7~~ 24V DC.
51 -*
52 -
53 53  **Interface for Model: LT22222-L:**
54 54  
55 55  * 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
... ... @@ -57,9 +57,8 @@
57 57  * 2 x Relay Output (5A@250VAC / 30VDC)
58 58  * 2 x 0~~20mA Analog Input (res:0.01mA)
59 59  * 2 x 0~~30V Analog Input (res:0.01v)
60 -* Power Input 7~~ 24V DC.
58 +* Power Input 7~~ 24V DC. 
61 61  
62 -
63 63  **LoRa Spec:**
64 64  
65 65  * Frequency Range:
... ... @@ -81,9 +81,8 @@
81 81  * Automatic RF Sense and CAD with ultra-fast AFC.
82 82  * Packet engine up to 256 bytes with CRC.
83 83  
81 +== 1.3 Features ==
84 84  
85 -*
86 -*1. Features
87 87  * LoRaWAN Class A & Class C protocol
88 88  * Optional Customized LoRa Protocol
89 89  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865
... ... @@ -92,10 +92,8 @@
92 92  * Firmware upgradable via program port
93 93  * Counting
94 94  
91 +== 1.4  Applications ==
95 95  
96 -
97 -*
98 -*1. Applications
99 99  * Smart Buildings & Home Automation
100 100  * Logistics and Supply Chain Management
101 101  * Smart Metering
... ... @@ -103,26 +103,11 @@
103 103  * Smart Cities
104 104  * Smart Factory
105 105  
100 +== 1.5 Hardware Variants ==
106 106  
107 -
108 -
109 -1.
110 -11. Hardware Variants
111 -
112 -
113 -|**Model**|**Photo**|**Description**
114 -|**LT33222-L**|[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]]|(((
115 -* 3 x Digital Input
116 -* 3 x Digital Output
117 -* 2 x Relay Output (5A@250VAC / 30VDC)
118 -* 2 x 0~~20mA Analog Input (res:0.01mA)
119 -* 2 x 0~~30V Analog Input (res:0.01v)
120 -* 1 x Counting Port
121 -)))
122 -
123 -
124 -|**Model**|**Photo**|**Description**
125 -|**LT22222-L**|[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.jpg]]|(((
102 +(% border="1" style="background-color:#f7faff; width:500px" %)
103 +|(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
104 +|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
126 126  * 2 x Digital Input (Bi-direction)
127 127  * 2 x Digital Output
128 128  * 2 x Relay Output (5A@250VAC / 30VDC)
... ... @@ -131,127 +131,82 @@
131 131  * 1 x Counting Port
132 132  )))
133 133  
113 += 2. Power ON Device =
134 134  
135 -
136 -1.
137 -11. Firmware Change log
138 -
139 -[[**LT Image files**>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]**:**
140 -
141 -http:~/~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/
142 -
143 -
144 -**Change log:**
145 -
146 -[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/&file=changelog>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/&file=changelog]]
147 -
148 -
149 -
150 -1. Power ON Device
151 -
152 -
153 153  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.
154 154  
117 +(((
155 155  PWR will on when device is properly powered.
119 +)))
156 156  
157 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image004.png]]
121 +[[image:1653297104069-180.png]]
158 158  
123 += 3. Operation Mode =
159 159  
125 +== 3.1 How it works? ==
160 160  
127 +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. 
161 161  
162 -
163 -1. Operation Mode
164 -11. How it works?
165 -
166 -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. 
167 -
168 -
169 169  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.
170 170  
131 +3.2 Example to join LoRaWAN network
171 171  
172 -1.
173 -11. Example to join LoRaWAN network
133 +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. 
174 174  
175 -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.
135 +[[image:image-20220523172350-1.png||height="266" width="864"]]
176 176  
177 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image005.png]]
178 178  
179 -
138 +(((
180 180  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:
140 +)))
181 181  
142 +(((
182 182  **Step 1**: Create a device in TTN with the OTAA keys from LT IO controller.
144 +)))
183 183  
146 +(((
184 184  Each LT is shipped with a sticker with the default device EUI as below:
148 +)))
185 185  
186 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image006.png]]
150 +[[image:1653297924498-393.png]]
187 187  
188 -
189 -
190 -
191 191  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
192 192  
193 193  Add APP EUI in the application.
194 194  
195 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]]
156 +[[image:1653297955910-247.png||height="321" width="716"]]
196 196  
197 197  Add APP KEY and DEV EUI
198 198  
199 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image008.png]]
160 +[[image:1653298023685-319.png]]
200 200  
162 +(((
201 201  **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.
164 +)))
202 202  
203 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image009.png]]
166 +[[image:1653298044601-602.png||height="405" width="709"]]
204 204  
168 +== 3.3 Uplink Payload ==
205 205  
206 -1.
207 -11. Uplink Payload
208 -
209 209  There are five working modes + one interrupt mode on LT for different type application:
210 210  
211 -* [[MOD1>>path:#MOD1]]: (default setting): 2 x ACI + 2AVI + DI + DO + RO
212 -* [[MOD2>>path:#MOD2]]: Double DI Counting + DO + RO
213 -* [[MOD3>>path:#MOD3]]: Single DI Counting + 2 x ACI + DO + RO
214 -* [[MOD4>>path:#MOD4]]: Single DI Counting + 1 x Voltage Counting + DO + RO
215 -* [[MOD5>>path:#MOD5]]: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
216 -* [[ADDMOD6>>path:#MOD6]]: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
172 +* **MOD1**: (default setting): 2 x ACI + 2AVI + DI + DO + RO
173 +* **MOD2**: Double DI Counting + DO + RO
174 +* **MOD3**: Single DI Counting + 2 x ACI + DO + RO
175 +* **MOD4**: Single DI Counting + 1 x Voltage Counting + DO + RO
176 +* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
177 +* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
217 217  
179 +=== 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
218 218  
219 -1.
220 -11.
221 -111. AT+MOD=1, 2ACI+2AVI
222 -
223 223  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
224 224  
183 +[[image:image-20220523174024-3.png]]
225 225  
226 -|Size(bytes)|2|2|2|2|1|1|1
227 -|Value|(((
228 -AVI1
185 +(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
229 229  
230 -voltage
231 -)))|(((
232 -AVI2
187 +[[image:image-20220523174254-4.png]]
233 233  
234 -voltage
235 -)))|(((
236 -ACI1
237 -
238 -Current
239 -)))|(((
240 -ACI2
241 -
242 -Current
243 -)))|DIDORO*|(((
244 -Reserve
245 -
246 -
247 -)))|MOD
248 -
249 -
250 -**DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
251 -
252 -|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
253 -|RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
254 -
255 255  * RO is for relay. ROx=1 : close，ROx=0 always open.
256 256  * DI is for digital input. DIx=1: high or float, DIx=0: low.
257 257  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
... ... @@ -261,7 +261,7 @@
261 261  
262 262  For example if payload is: 04 AB 04 AC 13 10 13 00 AA FF 01
263 263  
264 -The value for the interface is:
198 +The value for the interface is: 
265 265  
266 266  AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
267 267  
... ... @@ -287,7 +287,6 @@
287 287  * [1] DI2 channel is high input and DI2 LED is ON;
288 288  * [0] DI1 channel is low input;
289 289  
290 -
291 291  * [0] DO3 channel output state
292 292  ** DO3 is float in case no load between DO3 and V+.;
293 293  ** DO3 is high in case there is load between DO3 and V+.
... ... @@ -299,9 +299,8 @@
299 299  ** DO1 LED is off in both case
300 300  
301 301  
302 -
303 -1.
304 -11.
235 +1.
236 +11.
305 305  111. AT+MOD=2, (Double DI Counting)
306 306  
307 307  **For LT-33222-L**: this mode the **DI3** is used as a counting pin. Counting on DI3 reflect in COUNT1.
... ... @@ -311,6 +311,7 @@
311 311  
312 312  Total : 11 bytes payload
313 313  
246 +(% border="1" style="background-color:#f7faff; height:10px; width:500px" %)
314 314  |Size(bytes)|4|4|1|1|1
315 315  |Value|COUNT1|COUNT2 |DIDORO*|(((
316 316  Reserve
... ... @@ -318,9 +318,9 @@
318 318  
319 319  )))|MOD
320 320  
321 -
322 322  **DIDORO** is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
323 323  
256 +(% border="1" style="background-color:#f7faff" %)
324 324  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
325 325  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
326 326  
... ... @@ -373,8 +373,8 @@
373 373  
374 374  
375 375  
376 -1.
377 -11.
309 +1.
310 +11.
378 378  111. AT+MOD=3, Single DI Counting + 2 x ACI
379 379  
380 380  **LT33222-L**: This mode the DI3 is used as a counting pin.
... ... @@ -382,6 +382,7 @@
382 382  **LT22222-L**: This mode the DI1 is used as a counting pin.
383 383  
384 384  
318 +(% border="1" style="background-color:#f7faff" %)
385 385  |Size(bytes)|4|2|2|1|1|1
386 386  |Value|COUNT1|(((
387 387  ACI1
... ... @@ -393,9 +393,9 @@
393 393  Current
394 394  )))|DIDORO*|Reserve|MOD
395 395  
396 -
397 397  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
398 398  
332 +(% border="1" style="background-color:#f7faff" %)
399 399  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
400 400  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
401 401  
... ... @@ -418,8 +418,8 @@
418 418  
419 419  
420 420  
421 -1.
422 -11.
355 +1.
356 +11.
423 423  111. AT+MOD=4, Single DI Counting + 1 x Voltage Counting
424 424  
425 425  **LT33222-L**: This mode the DI3 is used as a counting pin.
... ... @@ -430,6 +430,7 @@
430 430  The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage **every 60s**, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1 counting can be used to measure a machine working hour.
431 431  
432 432  
367 +(% border="1" style="background-color:#f7faff" %)
433 433  |Size(bytes)|4|4|1|1|1
434 434  |Value|COUNT1|AVI1 Counting|DIDORO*|(((
435 435  Reserve
... ... @@ -437,9 +437,9 @@
437 437  
438 438  )))|MOD
439 439  
440 -
441 441  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
442 442  
377 +(% border="1" style="background-color:#f7faff" %)
443 443  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
444 444  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
445 445  
... ... @@ -472,16 +472,16 @@
472 472  
473 473  
474 474  
475 -1.
476 -11.
410 +1.
411 +11.
477 477  111. AT+MOD=5, Single DI Counting + 2 x AVI + 1 x ACI
478 478  
479 -
480 480  **LT33222-L**: This mode the DI3 is used as a counting pin.
481 481  
482 482  **LT22222-L**: This mode the DI1 is used as a counting pin.
483 483  
484 484  
419 +(% border="1" style="background-color:#f7faff" %)
485 485  |Size(bytes)|2|2|2|2|1|1|1
486 486  |Value|(((
487 487  AVI1
... ... @@ -502,9 +502,9 @@
502 502  )))|MOD
503 503  
504 504  
505 -
506 506  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
507 507  
442 +(% border="1" style="background-color:#f7faff" %)
508 508  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
509 509  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
510 510  
... ... @@ -528,11 +528,10 @@
528 528  
529 529  
530 530  
531 -1.
532 -11.
466 +1.
467 +11.
533 533  111. AT+ADDMOD=6. (Trigger Mode, Optional)
534 534  
535 -
536 536  **This mode is an optional mode for trigger purpose. It can run together with other mode.**
537 537  
538 538  For example, if user has configured below commands:
... ... @@ -540,13 +540,11 @@
540 540  * AT+MOD=1   à The normal working mode
541 541  * AT+ADDMOD6=1    à Enable trigger
542 542  
543 -
544 544  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
545 545  
546 546  1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN **unconfirmed** data type
547 547  1. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN **CONFIRMED data type.**
548 548  
549 -
550 550  **AT Command to set Trigger Condition**:
551 551  
552 552  **Trigger base on voltage**:
... ... @@ -617,6 +617,7 @@
617 617  
618 618  MOD6 Payload : total 11 bytes payload
619 619  
552 +(% border="1" style="background-color:#f7faff" %)
620 620  |Size(bytes)|1|1|1|6|1|1
621 621  |Value|(((
622 622  TRI_A
... ... @@ -637,9 +637,9 @@
637 637  )))
638 638  
639 639  
640 -
641 641  **TRI FLAG1** is a combination to show if trigger is set for this part. Totally 1byte as below
642 642  
575 +(% border="1" style="background-color:#f7faff" %)
643 643  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
644 644  |(((
645 645  AV1_
... ... @@ -684,6 +684,7 @@
684 684  
685 685  **TRI Status1** is a combination to show which condition is trigger. Totally 1byte as below
686 686  
620 +(% border="1" style="background-color:#f7faff" %)
687 687  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
688 688  |(((
689 689  AV1_
... ... @@ -730,6 +730,7 @@
730 730  
731 731  **TRI_DI FLAG+STA **is a combination to show which condition is trigger. Totally 1byte as below
732 732  
667 +(% border="1" style="background-color:#f7faff" %)
733 733  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
734 734  |N/A|N/A|N/A|N/A|DI2_STATUS|DI2_FLAG|DI1_STATUS|DI1_FLAG
735 735  
... ... @@ -752,11 +752,10 @@
752 752  When device got this command, it will send the MOD6 payload.
753 753  
754 754  
755 -1.
756 -11.
690 +1.
691 +11.
757 757  111. Payload Decoder
758 758  
759 -
760 760  **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/]]
761 761  
762 762  
... ... @@ -765,7 +765,7 @@
765 765  
766 766  
767 767  
768 -1.
702 +1.
769 769  11. ​Configure LT via AT or Downlink
770 770  
771 771  User can configure LT I/O Controller via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
... ... @@ -776,20 +776,17 @@
776 776  
777 777  * **Sensor Related Commands**: These commands are special designed for LT-22222-L.  User can see these commands below:
778 778  
779 -
780 -1.
781 -11.
713 +1.
714 +11.
782 782  111. Common Commands:
783 783  
784 -
785 785  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: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
786 786  
787 787  
788 -1.
789 -11.
720 +1.
721 +11.
790 790  111. Sensor related commands:
791 791  
792 -
793 793  ==== Set Transmit Interval ====
794 794  
795 795  Set device uplink interval.
... ... @@ -989,6 +989,7 @@
989 989  
990 990  01: Low,  00: High ,  11: No action
991 991  
923 +(% border="1" style="background-color:#f7faff" %)
992 992  |Downlink Code|DO1|DO2|DO3
993 993  |02  01  00  11|Low|High|No Action
994 994  |02  00  11  01|High|No Action|Low
... ... @@ -1026,22 +1026,23 @@
1026 1026  
1027 1027  **Third Byte**: Control Method and Ports status:
1028 1028  
961 +(% border="1" style="background-color:#f7faff" %)
1029 1029  |Second Byte|Status
1030 1030  |0x01|DO1 set to low
1031 1031  |0x00|DO1 set to high
1032 1032  |0x11|DO1 NO Action
1033 1033  
1034 -
1035 1035  **Fourth Byte**: Control Method and Ports status:
1036 1036  
969 +(% border="1" style="background-color:#f7faff" %)
1037 1037  |Second Byte|Status
1038 1038  |0x01|DO2 set to low
1039 1039  |0x00|DO2 set to high
1040 1040  |0x11|DO2 NO Action
1041 1041  
1042 -
1043 1043  **Fifth Byte**: Control Method and Ports status:
1044 1044  
977 +(% border="1" style="background-color:#f7faff" %)
1045 1045  |Second Byte|Status
1046 1046  |0x01|DO3 set to low
1047 1047  |0x00|DO3 set to high
... ... @@ -1094,6 +1094,7 @@
1094 1094  
1095 1095  01: Close ,  00: Open , 11: No action
1096 1096  
1030 +(% border="1" style="background-color:#f7faff" %)
1097 1097  |Downlink Code|RO1|RO2
1098 1098  |03  00  11|Open|No Action
1099 1099  |03  01  11|Close|No Action
... ... @@ -1131,6 +1131,7 @@
1131 1131  
1132 1132  **Third Byte(bb)**: Control Method and Ports status:
1133 1133  
1068 +(% border="1" style="background-color:#f7faff" %)
1134 1134  |Value|Status
1135 1135  |0x11|RO1 and RO2 to NO
1136 1136  |0x10|RO2 to NO, RO1 to NC
... ... @@ -1141,7 +1141,6 @@
1141 1141  |0x02|RO1 to NC, RO2 No Action
1142 1142  |0x12|RO1 to NO, RO2 No Action
1143 1143  
1144 -
1145 1145  **Fourth / Fifth Bytes (cc)**: Latching time. Unit: ms
1146 1146  
1147 1147  Device will upload a packet if downlink code executes successfully.
... ... @@ -1243,10 +1243,9 @@
1243 1243  
1244 1244  
1245 1245  
1246 -1.
1180 +1.
1247 1247  11. Integrate with Mydevice
1248 1248  
1249 -
1250 1250  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:
1251 1251  
1252 1252  
... ... @@ -1291,7 +1291,7 @@
1291 1291  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
1292 1292  
1293 1293  
1294 -1.
1227 +1.
1295 1295  11. Interface Detail
1296 1296  111. Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active )
1297 1297  
... ... @@ -1301,8 +1301,8 @@
1301 1301  
1302 1302  
1303 1303  
1304 -1.
1305 -11.
1237 +1.
1238 +11.
1306 1306  111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
1307 1307  
1308 1308  The DI port of LT-22222-L can support NPN or PNP output sensor.
... ... @@ -1344,7 +1344,7 @@
1344 1344  
1345 1345  **Example3**: Connect to a 220v high active sensor.公司测试一下
1346 1346  
1347 -Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler 
1280 +Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1348 1348  
1349 1349  * Connect sensor’s output to DI1+ with a serial 50K resistor
1350 1350  * Connect sensor’s GND DI1-.
... ... @@ -1356,8 +1356,8 @@
1356 1356  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.
1357 1357  
1358 1358  
1359 -1.
1360 -11.
1292 +1.
1293 +11.
1361 1361  111. Digital Output Port: DO1/DO2 /DO3
1362 1362  
1363 1363  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1367,8 +1367,8 @@
1367 1367  
1368 1368  
1369 1369  
1370 -1.
1371 -11.
1303 +1.
1304 +11.
1372 1372  111. Analog Input Interface
1373 1373  
1374 1374  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:
... ... @@ -1400,8 +1400,8 @@
1400 1400  
1401 1401  
1402 1402  
1403 -1.
1404 -11.
1336 +1.
1337 +11.
1405 1405  111. Relay Output
1406 1406  
1407 1407  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:
... ... @@ -1415,10 +1415,10 @@
1415 1415  
1416 1416  
1417 1417  
1418 -1.
1351 +1.
1419 1419  11. LEDs Indicators
1420 1420  
1421 -
1354 +(% border="1" style="background-color:#f7faff" %)
1422 1422  |**LEDs**|**Feature**
1423 1423  |**PWR**|Always on if there is power
1424 1424  |**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.
... ... @@ -1454,7 +1454,6 @@
1454 1454  
1455 1455  
1456 1456  
1457 -
1458 1458  1. Use AT Command
1459 1459  11. Access AT Command
1460 1460  
... ... @@ -1564,7 +1564,7 @@
1564 1564  
1565 1565  
1566 1566  
1567 -1.
1499 +1.
1568 1568  11. Common AT Command Sequence
1569 1569  111. Multi-channel ABP mode (Use with SX1301/LG308)
1570 1570  
... ... @@ -1587,8 +1587,8 @@
1587 1587  
1588 1588  ATZ
1589 1589  
1590 -1.
1591 -11.
1522 +1.
1523 +11.
1592 1592  111. Single-channel ABP mode (Use with LG01/LG02)
1593 1593  
1594 1594  123456   Enter Password to have AT access.
... ... @@ -1627,11 +1627,10 @@
1627 1627  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1628 1628  
1629 1629  
1630 -1.
1631 -11.
1562 +1.
1563 +11.
1632 1632  111. Change to Class A
1633 1633  
1634 -
1635 1635  If sensor JOINED
1636 1636  
1637 1637  AT+CLASS=A
... ... @@ -1644,8 +1644,7 @@
1644 1644  
1645 1645  1. FAQ
1646 1646  
1647 -
1648 -1.
1578 +1.
1649 1649  11. How to upgrade the image?
1650 1650  
1651 1651  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
... ... @@ -1654,7 +1654,6 @@
1654 1654  * For bug fix
1655 1655  * Change LoRaWAN bands.
1656 1656  
1657 -
1658 1658  Below shows the hardware connection for how to upload an image to the LT:
1659 1659  
1660 1660  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
... ... @@ -1699,13 +1699,13 @@
1699 1699  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1700 1700  
1701 1701  
1702 -1.
1631 +1.
1703 1703  11. How to change the LoRa Frequency Bands/Region?
1704 1704  
1705 1705  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1706 1706  
1707 1707  
1708 -1.
1637 +1.
1709 1709  11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1710 1710  
1711 1711  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
... ... @@ -1748,7 +1748,7 @@
1748 1748  
1749 1749  
1750 1750  
1751 -1.
1680 +1.
1752 1752  11. Can I see counting event in Serial?
1753 1753  
1754 1754  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.
... ... @@ -1764,7 +1764,7 @@
1764 1764  [[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]]
1765 1765  
1766 1766  
1767 -1.
1696 +1.
1768 1768  11. Have trouble to upload image.
1769 1769  
1770 1770  See this link for trouble shooting:
... ... @@ -1772,7 +1772,7 @@
1772 1772  [[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]]
1773 1773  
1774 1774  
1775 -1.
1704 +1.
1776 1776  11. Why I can’t join TTN in US915 /AU915 bands?
1777 1777  
1778 1778  It might be about the channels mapping. Please see this link for detail:
... ... @@ -1784,7 +1784,6 @@
1784 1784  
1785 1785  1. Order Info
1786 1786  
1787 -
1788 1788  **For LT-33222-L-XXX or LT-22222-L-XXX:**
1789 1789  
1790 1790  **XXX:**
... ... @@ -1799,7 +1799,6 @@
1799 1799  * **IN865**: LT with frequency bands IN865
1800 1800  * **CN779**: LT with frequency bands CN779
1801 1801  
1802 -
1803 1803  1. Packing Info
1804 1804  
1805 1805  **Package Includes**:
... ... @@ -1809,7 +1809,6 @@
1809 1809  * Bracket for controller x1
1810 1810  * Program cable x 1
1811 1811  
1812 -
1813 1813  **Dimension and weight**:
1814 1814  
1815 1815  * Device Size: 13.5 x 7 x 3 cm
... ... @@ -1817,7 +1817,6 @@
1817 1817  * Package Size / pcs : 14.5 x 8 x 5 cm
1818 1818  * Weight / pcs : 170g
1819 1819  
1820 -
1821 1821  1. Support
1822 1822  
1823 1823  * 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.
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