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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
... ... @@ -35,21 +35,8 @@
35 35  * 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)
... ... @@ -59,7 +59,6 @@
59 59  * 2 x 0~~30V Analog Input (res:0.01v)
60 60  * 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" cellpadding="2" style="background-color:#f7faff; width:540px" %)
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)
... ... @@ -131,126 +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
174 -
175 175  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.
176 176  
177 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image005.png]]
135 +[[image:image-20220523172350-1.png||height="266" width="864"]]
178 178  
179 179  
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:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]][[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 +== [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image009.png]]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
229 229  
230 -voltage
231 -)))|(((
232 -AVI2
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 -
250 250  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
251 251  
252 -|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
253 -|RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
188 +[[image:image-20220523174254-4.png]]
254 254  
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.
... ... @@ -311,6 +311,7 @@
311 311  
312 312  Total : 11 bytes payload
313 313  
249 +(% 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
... ... @@ -321,6 +321,7 @@
321 321  
322 322  **DIDORO** is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
323 323  
260 +(% 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  
... ... @@ -382,6 +382,7 @@
382 382  **LT22222-L**: This mode the DI1 is used as a counting pin.
383 383  
384 384  
322 +(% border="1" style="background-color:#f7faff" %)
385 385  |Size(bytes)|4|2|2|1|1|1
386 386  |Value|COUNT1|(((
387 387  ACI1
... ... @@ -396,6 +396,7 @@
396 396  
397 397  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
398 398  
337 +(% 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  
... ... @@ -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  
372 +(% 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
... ... @@ -440,6 +440,7 @@
440 440  
441 441  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
442 442  
383 +(% 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  
... ... @@ -482,6 +482,7 @@
482 482  **LT22222-L**: This mode the DI1 is used as a counting pin.
483 483  
484 484  
426 +(% border="1" style="background-color:#f7faff" %)
485 485  |Size(bytes)|2|2|2|2|1|1|1
486 486  |Value|(((
487 487  AVI1
... ... @@ -505,6 +505,7 @@
505 505  
506 506  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
507 507  
450 +(% 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  
... ... @@ -617,6 +617,7 @@
617 617  
618 618  MOD6 Payload : total 11 bytes payload
619 619  
563 +(% border="1" style="background-color:#f7faff" %)
620 620  |Size(bytes)|1|1|1|6|1|1
621 621  |Value|(((
622 622  TRI_A
... ... @@ -640,6 +640,7 @@
640 640  
641 641  **TRI FLAG1** is a combination to show if trigger is set for this part. Totally 1byte as below
642 642  
587 +(% 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  
632 +(% 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  
679 +(% 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  
... ... @@ -989,6 +989,7 @@
989 989  
990 990  01: Low,  00: High ,  11: No action
991 991  
939 +(% 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
... ... @@ -1026,6 +1026,7 @@
1026 1026  
1027 1027  **Third Byte**: Control Method and Ports status:
1028 1028  
977 +(% 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
... ... @@ -1034,6 +1034,7 @@
1034 1034  
1035 1035  **Fourth Byte**: Control Method and Ports status:
1036 1036  
986 +(% 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
... ... @@ -1042,6 +1042,7 @@
1042 1042  
1043 1043  **Fifth Byte**: Control Method and Ports status:
1044 1044  
995 +(% 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  
1048 +(% 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  
1086 +(% 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
... ... @@ -1419,6 +1419,7 @@
1419 1419  11. LEDs Indicators
1420 1420  
1421 1421  
1375 +(% 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.
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