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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 223.1
edited by Dilisi S
on 2024/11/26 05:20
Change comment: Nov 25 edits
To version 233.1
edited by Dilisi S
on 2024/12/17 04:56
Change comment: Uploaded new attachment "lt-22222-l-dashboard.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -21,6 +21,7 @@
21 21  
22 22  == 1.1 What is the LT-22222-L I/O Controller? ==
23 23  
24 +
24 24  (((
25 25  (((
26 26  {{info}}
... ... @@ -54,8 +54,10 @@
54 54  (% class="wikigeneratedid" %)
55 55  [[image:lorawan-nw.jpg||height="354" width="900"]]
56 56  
58 +
57 57  == 1.2 Specifications ==
58 58  
61 +
59 59  (% style="color:#037691" %)**Hardware System:**
60 60  
61 61  * STM32L072xxxx MCU
... ... @@ -97,6 +97,7 @@
97 97  
98 98  == 1.3 Features ==
99 99  
103 +
100 100  * LoRaWAN Class A & Class C modes
101 101  * Optional Customized LoRa Protocol
102 102  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
... ... @@ -107,6 +107,7 @@
107 107  
108 108  == 1.4 Applications ==
109 109  
114 +
110 110  * Smart buildings & home automation
111 111  * Logistics and supply chain management
112 112  * Smart metering
... ... @@ -116,13 +116,15 @@
116 116  
117 117  == 1.5 Hardware Variants ==
118 118  
119 -(% style="width:650px" %)
120 -|(% style="width:94px" %)**Model**|(% style="width:172px" %)**Photo**|(% style="width:256px" %)**Description**
121 -|(% style="width:94px" %)**LT-33222-L**|(% style="width:172px" %)(((
122 -[[image:lt33222-l.jpg]]
124 +
125 +(% border="1" cellspacing="3" style="width:510px" %)
126 +|(% style="background-color:#4f81bd; color:white; width:94px" %)**Model**|(% style="background-color:#4f81bd; color:white; width:172px" %)**Photo**|(% style="background-color:#4f81bd; color:white; width:244px" %)**Description**
127 +|(% style="width:94px" %)**LT-22222-L**|(% style="width:172px" %)(((
128 +(% style="text-align:center" %)
129 +[[image:lt33222-l.jpg||height="110" width="95"]]
123 123  )))|(% style="width:256px" %)(((
124 -* 3 x Digital Input (Bi-direction)
125 -* 3 x Digital Output
131 +* 2 x Digital Input (Bi-direction)
132 +* 2 x Digital Output
126 126  * 2 x Relay Output (5A@250VAC / 30VDC)
127 127  * 2 x 0~~20mA Analog Input (res:0.01mA)
128 128  * 2 x 0~~30V Analog Input (res:0.01v)
... ... @@ -133,6 +133,7 @@
133 133  
134 134  == 2.1 Connecting the antenna ==
135 135  
143 +
136 136  Connect the LoRa antenna to the antenna connector, **ANT**,** **located on the top right side of the device, next to the upper screw terminal block. Secure the antenna by tightening it clockwise.
137 137  
138 138  {{warning}}
... ... @@ -139,42 +139,45 @@
139 139  **Warning! Do not power on the device without connecting the antenna.**
140 140  {{/warning}}
141 141  
150 +
142 142  == 2.2 Terminals ==
143 143  
153 +
144 144  The  LT-22222-L has two screw terminal blocks. The upper screw treminal block has 6 screw terminals and the lower screw terminal block has 10 screw terminals.
145 145  
146 146  **Upper screw terminal block (from left to right):**
147 147  
148 -(% style="width:634px" %)
149 -|=(% style="width: 295px;" %)Screw Terminal|=(% style="width: 338px;" %)Function
150 -|(% style="width:295px" %)GND|(% style="width:338px" %)Ground
151 -|(% style="width:295px" %)VIN|(% style="width:338px" %)Input Voltage
152 -|(% style="width:295px" %)AVI2|(% style="width:338px" %)Analog Voltage Input Terminal 2
153 -|(% style="width:295px" %)AVI1|(% style="width:338px" %)Analog Voltage Input Terminal 1
154 -|(% style="width:295px" %)ACI2|(% style="width:338px" %)Analog Current Input Terminal 2
155 -|(% style="width:295px" %)ACI1|(% style="width:338px" %)Analog Current Input Terminal 1
158 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:381px" %)
159 +|=(% style="width: 139px;background-color:#4f81bd;color:white" %)Screw Terminal|=(% style="width: 242px;background-color:#4f81bd;color:white" %)Function
160 +|(% style="width:139px" %)GND|(% style="width:242px" %)Ground
161 +|(% style="width:139px" %)VIN|(% style="width:242px" %)Input Voltage
162 +|(% style="width:139px" %)AVI2|(% style="width:242px" %)Analog Voltage Input Terminal 2
163 +|(% style="width:139px" %)AVI1|(% style="width:242px" %)Analog Voltage Input Terminal 1
164 +|(% style="width:139px" %)ACI2|(% style="width:242px" %)Analog Current Input Terminal 2
165 +|(% style="width:139px" %)ACI1|(% style="width:242px" %)Analog Current Input Terminal 1
156 156  
157 157  **Lower screw terminal block (from left to right):**
158 158  
159 -(% style="width:633px" %)
160 -|=(% style="width: 296px;" %)Screw Terminal|=(% style="width: 334px;" %)Function
161 -|(% style="width:296px" %)RO1-2|(% style="width:334px" %)Relay Output 1
162 -|(% style="width:296px" %)RO1-1|(% style="width:334px" %)Relay Output 1
163 -|(% style="width:296px" %)RO2-2|(% style="width:334px" %)Relay Output 2
164 -|(% style="width:296px" %)RO2-1|(% style="width:334px" %)Relay Output 2
165 -|(% style="width:296px" %)DI2+|(% style="width:334px" %)Digital Input 2
166 -|(% style="width:296px" %)DI2-|(% style="width:334px" %)Digital Input 2
167 -|(% style="width:296px" %)DI1+|(% style="width:334px" %)Digital Input 1
168 -|(% style="width:296px" %)DI1-|(% style="width:334px" %)Digital Input 1
169 -|(% style="width:296px" %)DO2|(% style="width:334px" %)Digital Output 2
170 -|(% style="width:296px" %)DO1|(% style="width:334px" %)Digital Output 1
169 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:253px" %)
170 +|=(% style="width: 125px;background-color:#4f81bd;color:white" %)Screw Terminal|=(% style="width: 128px;background-color:#4f81bd;color:white" %)Function
171 +|(% style="width:125px" %)RO1-2|(% style="width:128px" %)Relay Output 1
172 +|(% style="width:125px" %)RO1-1|(% style="width:128px" %)Relay Output 1
173 +|(% style="width:125px" %)RO2-2|(% style="width:128px" %)Relay Output 2
174 +|(% style="width:125px" %)RO2-1|(% style="width:128px" %)Relay Output 2
175 +|(% style="width:125px" %)DI2+|(% style="width:128px" %)Digital Input 2
176 +|(% style="width:125px" %)DI2-|(% style="width:128px" %)Digital Input 2
177 +|(% style="width:125px" %)DI1+|(% style="width:128px" %)Digital Input 1
178 +|(% style="width:125px" %)DI1-|(% style="width:128px" %)Digital Input 1
179 +|(% style="width:125px" %)DO2|(% style="width:128px" %)Digital Output 2
180 +|(% style="width:125px" %)DO1|(% style="width:128px" %)Digital Output 1
171 171  
172 172  == 2.3 Connecting LT-22222-L to a Power Source ==
173 173  
184 +
174 174  The LT-22222-L I/O Controller can be powered by a **7–24V DC** power source. Connect your power supply’s **positive wire** to the **VIN** and the **negative wire** to the **GND** screw terminals. The power indicator **(PWR) LED** will turn on when the device is properly powered.
175 175  
176 176  {{warning}}
177 -**We recommend that you power on the LT-22222-L after configuring its registration information with a LoRaWAN network server. Otherwise, the device will continuously send join-request messages to attempt to join a LoRaWAN network but will fail.**
188 +**We recommend that you power on the LT-22222-L after adding its registration information to the LoRaWAN network server. Otherwise, the device will continuously send join-request messages to attempt to join a LoRaWAN network but will fail.**
178 178  {{/warning}}
179 179  
180 180  
... ... @@ -183,23 +183,27 @@
183 183  
184 184  = 3. Registering LT-22222-L with a LoRaWAN Network Server =
185 185  
197 +
186 186  The LT-22222-L supports both OTAA (Over-the-Air Activation) and ABP (Activation By Personalization) methods to activate with a LoRaWAN Network Server. However, OTAA is the most secure method for activating a device with a LoRaWAN Network Server. OTAA regenerates session keys upon initial registration and regenerates new session keys after any subsequent reboots. By default, the LT-22222-L is configured to operate in LoRaWAN Class C mode.
187 187  
188 188  
189 -=== 3.2.1 Prerequisites ===
201 +== 3.1 Prerequisites ==
190 190  
203 +
191 191  The LT-22222-L comes with device registration information such as DevEUI, AppEUI, and AppKey that allows you to register it with a LoRaWAN network. These registration information can be found on a sticker that can be found inside the package. Please keep the **registration information** sticker in a safe place for future reference.
192 192  
193 193  [[image:image-20230425173427-2.png||height="246" width="530"]]
194 194  
195 195  {{info}}
196 -In case you can't set the root key and other identifiers in the network server and must use them from the server, you can use [[AT Commands>>||anchor="H4.UseATCommand"]] to configure them on the device.
209 +If you are unable to set the provided root key and other identifiers in the network server, you must generate new keys and identifiers with the network server and configure the device with them using AT commands.
197 197  {{/info}}
198 198  
199 199  The following subsections explain how to register the LT-22222-L with different LoRaWAN network server providers.
200 200  
201 -=== 3.2.2 The Things Stack ===
202 202  
215 +== 3.2 The Things Stack ==
216 +
217 +
203 203  This section guides you through how to register your LT-22222-L with The Things Stack Sandbox.
204 204  
205 205  {{info}}
... ... @@ -210,7 +210,7 @@
210 210  The network diagram below illustrates the connection between the LT-22222-L and The Things Stack, as well as how the data can be integrated with the ThingsEye IoT platform.
211 211  
212 212  
213 -[[image:dragino-lorawan-nw-lt-22222-n.jpg]]
228 +[[image:dragino-lorawan-nw-lt-22222-n.jpg||height="374" width="1400"]]
214 214  
215 215  {{info}}
216 216   You can use a LoRaWAN gateway, such as the [[Dragino LPS8N>>https://www.dragino.com/products/lora-lorawan-gateway/item/200-lps8n.html]], to expand or create LoRaWAN coverage in your area.
... ... @@ -217,8 +217,9 @@
217 217  {{/info}}
218 218  
219 219  
220 -==== 3.2.2.1 Setting up ====
235 +=== 3.2.1 Setting up ===
221 221  
237 +
222 222  * Sign up for a free account with [[The Things Stack Sandbox>>https://eu1.cloud.thethings.network]] if you do not have one yet.
223 223  * Log in to your The Things Stack Sandbox account.
224 224  * Create an **application** with The Things Stack if you do not have one yet (E.g., dragino-docs).
... ... @@ -225,8 +225,10 @@
225 225  * Go to your application's page and click on the **End devices** in the left menu.
226 226  * On the End devices page, click on **+ Register end device**. Two registration options are available:
227 227  
228 -==== 3.2.2.2 Using the LoRaWAN Device Repository ====
229 229  
245 +==== 3.2.1.1 Using the LoRaWAN Device Repository ====
246 +
247 +
230 230  * On the **Register end device** page:
231 231  ** Select the option **Select the end device in the LoRaWAN Device Repository **under **Input method**.
232 232  ** Select the **End device brand**, **Model**, **Hardware version**, **Firmware version**, and **Profile (Region)** from the respective dropdown lists.
... ... @@ -250,8 +250,9 @@
250 250  [[image:lt-22222-l-dev-repo-reg-p2.png]]
251 251  
252 252  
253 -==== 3.2.2.3 Adding device manually ====
271 +==== 3.2.1.2 Adding device manually ====
254 254  
273 +
255 255  * On the **Register end device** page:
256 256  ** Select the option **Enter end device specifies manually** under **Input method**.
257 257  ** Select the **Frequency plan** that matches your device from the **Frequency plan** dropdown list.
... ... @@ -281,8 +281,9 @@
281 281  [[image:lt-22222-device-overview.png]]
282 282  
283 283  
284 -==== 3.2.2.4 Joining ====
303 +=== 3.2.2 Joining ===
285 285  
305 +
286 286  On the Device's page, click on **Live data** tab. The Live data panel for your device will display.
287 287  
288 288  Now power on your LT-22222-L. The **TX LED** will **fast-blink 5 times** which means the LT-22222-L will enter the **work mode** and start to **join** The Things Stack network server. The **TX LED** will be on for **5 seconds** after joining the network. In the **Live data** panel, you can see the **join-request** and **join-accept** messages exchanged between the device and the network server.
... ... @@ -291,10 +291,9 @@
291 291  [[image:lt-22222-l-joining.png]]
292 292  
293 293  
314 +=== 3.2.3 Uplinks ===
294 294  
295 -==== 3.2.2.5 Uplinks ====
296 296  
297 -
298 298  After successfully joining, the device will send its first **uplink data message** to the application it belongs to (in this example, **dragino-docs**). When the LT-22222-L sends an uplink message to the server, the **TX LED** turns on for **1 second**. By default, you will receive an uplink data message from the device every 10 minutes.
299 299  
300 300  Click on one of a **Forward uplink data messages **to see its payload content. The payload content is encapsulated within the decode_payload {} JSON object.
... ... @@ -311,8 +311,15 @@
311 311  [[image:lt-22222-ul-payload-fmt.png]]
312 312  
313 313  
314 -==== 3.2.2.6 Downlinks ====
333 +We also have a payload formatter that resolves some decoding issues present in the Device Repository formatter. You can add it under the Custom JavaScript formatter. It can be found [[here>>https://github.com/dragino/dragino-end-node-decoder/blob/main/LT22222-L/v1.6_decoder_ttn%20.txt]]:
315 315  
335 +(% class="wikigeneratedid" %)
336 +[[image:lt-22222-l-js-custom-payload-formatter.png]]
337 +
338 +
339 +=== 3.2.4 Downlinks ===
340 +
341 +
316 316  When the LT-22222-L receives a downlink message from the server, the **RX LED** turns on for **1 second**.
317 317  
318 318  
... ... @@ -335,8 +335,10 @@
335 335  
336 336  The uplink messages are sent over LoRaWAN FPort=2. By default, an uplink message is sent every 10 minutes.
337 337  
364 +
338 338  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
339 339  
367 +
340 340  (((
341 341  This is the default mode.
342 342  
... ... @@ -409,6 +409,7 @@
409 409  
410 410  MOD = 1
411 411  
440 +
412 412  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
413 413  
414 414  
... ... @@ -487,6 +487,7 @@
487 487  
488 488  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
489 489  
519 +
490 490  (% style="color:red" %)**Note: The maximum count depends on the bytes it is.
491 491  The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
492 492  It starts counting again when it reaches the maximum value.**
... ... @@ -540,6 +540,7 @@
540 540  
541 541  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
542 542  
573 +
543 543  (% style="color:red" %)**Note:The maximum count depends on the bytes it is.
544 544  The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
545 545  It starts counting again when it reaches the maximum value.**
... ... @@ -609,6 +609,7 @@
609 609  
610 610  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
611 611  
643 +
612 612  (% style="color:red" %)**Note:The maximum count depends on the bytes it is.
613 613  The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
614 614  It starts counting again when it reaches the maximum value.**
... ... @@ -753,7 +753,7 @@
753 753  
754 754  MOD6 Payload: total of 11 bytes
755 755  
756 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
788 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:515px" %)
757 757  |(% style="background-color:#4f81bd; color:white; width:60px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:69px" %)**1**|(% style="background-color:#4f81bd; color:white; width:69px" %)**1**|(% style="background-color:#4f81bd; color:white; width:109px" %)**1**|(% style="background-color:#4f81bd; color:white; width:49px" %)**6**|(% style="background-color:#4f81bd; color:white; width:109px" %)**1**|(% style="background-color:#4f81bd; color:white; width:50px" %)**1**
758 758  |Value|(((
759 759  TRI_A FLAG
... ... @@ -767,7 +767,7 @@
767 767  
768 768  (% style="color:#4f81bd" %)**TRI FLAG1**(%%) is a combination to show if the trigger is set for this part. Totally 1 byte as below
769 769  
770 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
802 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:515px" %)
771 771  |**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
772 772  |(((
773 773  AV1_LOW
... ... @@ -796,7 +796,7 @@
796 796  
797 797  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1 byte as below
798 798  
799 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
831 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:515px" %)
800 800  |**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
801 801  |(((
802 802  AV1_LOW
... ... @@ -825,9 +825,9 @@
825 825  
826 826  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
827 827  
828 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:674px" %)
829 -|(% style="width:64px" %)**bit 7**|(% style="width:68px" %)**bit 6**|(% style="width:63px" %)**bit 5**|(% style="width:66px" %)**bit 4**|(% style="width:109px" %)**bit 3**|(% style="width:93px" %)**bit 2**|(% style="width:109px" %)**bit 1**|(% style="width:99px" %)**bit 0**
830 -|(% style="width:64px" %)N/A|(% style="width:68px" %)N/A|(% style="width:63px" %)N/A|(% style="width:66px" %)N/A|(% style="width:109px" %)DI2_STATUS|(% style="width:93px" %)DI2_FLAG|(% style="width:109px" %)DI1_STATUS|(% style="width:99px" %)DI1_FLAG
860 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:515px" %)
861 +|(% style="width:50px" %)**bit 7**|(% style="width:50px" %)**bit 6**|(% style="width:50px" %)**bit 5**|(% style="width:50px" %)**bit 4**|(% style="width:90px" %)**bit 3**|(% style="width:80px" %)**bit 2**|(% style="width:90px" %)**bit 1**|(% style="width:95px" %)**bit 0**
862 +|(% style="width:49px" %)N/A|(% style="width:53px" %)N/A|(% style="width:53px" %)N/A|(% style="width:55px" %)N/A|(% style="width:99px" %)DI2_STATUS|(% style="width:83px" %)DI2_FLAG|(% style="width:98px" %)DI1_STATUS|(% style="width:85px" %)DI1_FLAG
831 831  
832 832  * Each bit shows which status has been triggered on this uplink.
833 833  
... ... @@ -858,6 +858,7 @@
858 858  
859 859  == 3.4 ​Configure LT-22222-L via AT Commands or Downlinks ==
860 860  
893 +
861 861  (((
862 862  You can configure LT-22222-L I/O Controller via AT Commands or LoRaWAN Downlinks.
863 863  )))
... ... @@ -874,17 +874,22 @@
874 874  
875 875  === 3.4.1 Common commands ===
876 876  
910 +
877 877  (((
878 878  These are available for each sensors and include actions such as changing the uplink interval or resetting the device. For firmware v1.5.4, you can find the supported common commands under: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]s.
913 +
914 +
879 879  )))
880 880  
881 881  === 3.4.2 Sensor-related commands ===
882 882  
919 +
883 883  These commands are specially designed for the LT-22222-L. Commands can be sent to the device using options such as an AT command or a LoRaWAN downlink payload.
884 884  
885 885  
886 886  ==== 3.4.2.1 Set Transmit/Uplink Interval ====
887 887  
925 +
888 888  Sets the uplink interval of the device. The default uplink transmission interval is 10 minutes.
889 889  
890 890  (% style="color:#037691" %)**AT command**
... ... @@ -891,8 +891,15 @@
891 891  
892 892  (% border="2" style="width:500px" %)
893 893  |**Command**|AT+TDC=<time>
894 -|**Response**|
895 -|**Parameters**|**time** : uplink interval is in **milliseconds**
932 +|**Parameters**|**time **: uplink interval in milliseconds
933 +|**Get**|AT+TDC=?
934 +|**Response**|(((
935 +current uplink interval
936 +
937 +OK
938 +)))
939 +|**Set**|AT+TDC=<time>
940 +|**Response**|OK
896 896  |**Example**|(((
897 897  AT+TDC=30000
898 898  
... ... @@ -908,7 +908,7 @@
908 908  |**Parameters**|(((
909 909  **prefix** : 0x01
910 910  
911 -**time** : uplink interval is in **seconds**, represented by **3  bytes** in **hexadecimal**.
956 +**time** : uplink interval in **seconds**, represented by **3  bytes** in **hexadecimal**.
912 912  )))
913 913  |**Example**|(((
914 914  01 **00 00 1E**
... ... @@ -924,13 +924,13 @@
924 924  
925 925  ==== 3.4.2.2 Set the Working Mode (AT+MOD) ====
926 926  
972 +
927 927  Sets the working mode.
928 928  
929 929  (% style="color:#037691" %)**AT command**
930 930  
931 931  (% border="2" style="width:500px" %)
932 -|(% style="width:97px" %)**Command**|(% style="width:413px" %)AT+MODE=<working_mode>
933 -|(% style="width:97px" %)**Response**|(% style="width:413px" %)
978 +|(% style="width:97px" %)**Command**|(% style="width:413px" %)AT+MOD=<working_mode>
934 934  |(% style="width:97px" %)**Parameters**|(% style="width:413px" %)(((
935 935  **working_mode** :
936 936  
... ... @@ -946,6 +946,18 @@
946 946  
947 947  6 = Trigger Mode, Optional, used together with MOD1 ~~ MOD5
948 948  )))
994 +|(% style="width:97px" %)**Get**|(% style="width:413px" %)AT+MOD=?
995 +|(% style="width:97px" %)**Response**|(% style="width:413px" %)(((
996 +Current working mode
997 +
998 +OK
999 +)))
1000 +|(% style="width:97px" %)**Set**|(% style="width:413px" %)AT+MOD=<working_mode>
1001 +|(% style="width:97px" %)**Response**|(% style="width:413px" %)(((
1002 +Attention:Take effect after ATZ
1003 +
1004 +OK
1005 +)))
949 949  |(% style="width:97px" %)**Example**|(% style="width:413px" %)(((
950 950  AT+MOD=2
951 951  
... ... @@ -970,6 +970,7 @@
970 970  
971 971  ==== 3.4.2.3 Request an uplink from the device ====
972 972  
1030 +
973 973  Requests an uplink from LT-22222-L. The content of the uplink payload varies based on the device's current working mode.
974 974  
975 975  (% style="color:#037691" %)**AT command**
... ... @@ -989,6 +989,7 @@
989 989  
990 990  ==== 3.4.2.4 Enable/Disable Trigger Mode ====
991 991  
1050 +
992 992  Enable or disable the trigger mode for the current working mode (see also [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]).
993 993  
994 994  (% style="color:#037691" %)**AT Command**
... ... @@ -1026,6 +1026,7 @@
1026 1026  
1027 1027  ==== 3.4.2.5 Request trigger settings ====
1028 1028  
1088 +
1029 1029  Requests the trigger settings.
1030 1030  
1031 1031  (% style="color:#037691" %)**AT Command:**
... ... @@ -1045,6 +1045,7 @@
1045 1045  
1046 1046  ==== 3.4.2.6 Enable/Disable DI1/DI2/DI3 as a trigger ====
1047 1047  
1108 +
1048 1048  Enable or disable DI1/DI2/DI3 as a trigger.
1049 1049  
1050 1050  (% style="color:#037691" %)**AT Command**
... ... @@ -1099,9 +1099,9 @@
1099 1099  
1100 1100  ==== 3.4.2.7 Trigger1 – Set DI or DI3 as a trigger ====
1101 1101  
1163 +
1102 1102  Sets DI1 or DI3 (for LT-33222-L) as a trigger.
1103 1103  
1104 -
1105 1105  (% style="color:#037691" %)**AT Command**
1106 1106  
1107 1107  (% border="2" style="width:500px" %)
... ... @@ -1138,9 +1138,9 @@
1138 1138  
1139 1139  ==== 3.4.2.8 Trigger2 – Set DI2 as a trigger ====
1140 1140  
1202 +
1141 1141  Sets DI2 as a trigger.
1142 1142  
1143 -
1144 1144  (% style="color:#037691" %)**AT Command**
1145 1145  
1146 1146  (% border="2" style="width:500px" %)
... ... @@ -1172,6 +1172,7 @@
1172 1172  
1173 1173  ==== 3.4.2.9 Trigger – Set AC (current) as a trigger ====
1174 1174  
1236 +
1175 1175  Sets the current trigger based on the AC port. See also [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
1176 1176  
1177 1177  (% style="color:#037691" %)**AT Command**
... ... @@ -1221,6 +1221,7 @@
1221 1221  
1222 1222  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
1223 1223  
1286 +
1224 1224  Sets the current trigger based on the AV port. See also [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
1225 1225  
1226 1226  (% style="color:#037691" %)**AT Command**
... ... @@ -1268,6 +1268,7 @@
1268 1268  
1269 1269  ==== 3.4.2.11 Trigger – Set minimum interval ====
1270 1270  
1334 +
1271 1271  Sets the AV and AC trigger minimum interval. The device won't respond to a second trigger within this set time after the first trigger.
1272 1272  
1273 1273  (% style="color:#037691" %)**AT Command**
... ... @@ -1303,6 +1303,7 @@
1303 1303  
1304 1304  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
1305 1305  
1370 +
1306 1306  Controls the digital outputs DO1, DO2, and DO3
1307 1307  
1308 1308  (% style="color:#037691" %)**AT Command**
... ... @@ -1333,11 +1333,11 @@
1333 1333  (((
1334 1334  01: Low,  00: High,  11: No action
1335 1335  
1336 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1337 -|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**DO1**|(% style="background-color:#4f81bd; color:white" %)**DO2**|(% style="background-color:#4f81bd; color:white" %)**DO3**
1338 -|02  01  00  11|Low|High|No Action
1339 -|02  00  11  01|High|No Action|Low
1340 -|02  11  01  00|No Action|Low|High
1401 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:383px" %)
1402 +|(% style="background-color:#4f81bd; color:white; width:126px" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white; width:85px" %)**DO1**|(% style="background-color:#4f81bd; color:white; width:86px" %)**DO2**|(% style="background-color:#4f81bd; color:white; width:86px" %)**DO3**
1403 +|(% style="width:126px" %)02  01  00  11|(% style="width:85px" %)Low|(% style="width:86px" %)High|(% style="width:86px" %)No Action
1404 +|(% style="width:126px" %)02  00  11  01|(% style="width:85px" %)High|(% style="width:86px" %)No Action|(% style="width:86px" %)Low
1405 +|(% style="width:126px" %)02  11  01  00|(% style="width:85px" %)No Action|(% style="width:86px" %)Low|(% style="width:86px" %)High
1341 1341  )))
1342 1342  
1343 1343  (((
... ... @@ -1354,78 +1354,81 @@
1354 1354  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
1355 1355  
1356 1356  
1357 -* (% style="color:#037691" %)**AT Command**
1422 +(% style="color:#037691" %)**AT command**
1358 1358  
1359 1359  There is no AT command to control the digital output.
1360 1360  
1361 1361  
1362 -* (% style="color:#037691" %)**Downlink Payload (prefix 0xA9)**
1427 +(% style="color:#037691" %)**Downlink payload**
1363 1363  
1364 -(% style="color:blue" %)**0xA9 aa bb cc     **(%%) ~/~/ Sets DO1/DO2/DO3 outputs with time control
1365 1365  
1366 -This is to control the digital output time of DO pin. Include four bytes:
1430 +(% border="2" style="width:500px" %)
1431 +|(% style="width:116px" %)**Prefix**|(% style="width:382px" %)0xA9
1432 +|(% style="width:116px" %)**Parameters**|(% style="width:382px" %)(((
1433 +**inverter_mode**: 1 byte in hex.
1367 1367  
1368 -(% style="color:#4f81bd" %)**First byte**(%%)**:** Type code (0xA9)
1369 -
1370 -(% style="color:#4f81bd" %)**Second byte**(%%): Inverter Mode
1371 -
1372 1372  **01:** DO pins revert to their original state after the timeout.
1373 1373  **00:** DO pins switch to an inverted state after the timeout.
1374 1374  
1375 1375  
1376 -(% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Port status:
1439 +**DO1_control_method_and_port_status **- 1 byte in hex
1377 1377  
1378 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1379 -|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1380 -|0x01|DO1 set to low
1381 -|0x00|DO1 set to high
1382 -|0x11|DO1 NO Action
1441 +0x01 : DO1 set to low
1383 1383  
1384 -(% style="color:#4f81bd" %)**Fourth byte**(%%): Control Method and Port status:
1443 +0x00 : DO1 set to high
1385 1385  
1386 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1387 -|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1388 -|0x01|DO2 set to low
1389 -|0x00|DO2 set to high
1390 -|0x11|DO2 NO Action
1445 +0x11 : DO1 NO action
1391 1391  
1392 -(% style="color:#4f81bd" %)**Fifth byte**(%%): Control Method and Port status:
1393 1393  
1394 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1395 -|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1396 -|0x01|DO3 set to low
1397 -|0x00|DO3 set to high
1398 -|0x11|DO3 NO Action
1448 +**DO2_control_method_and_port_status** - 1 byte in hex
1399 1399  
1400 -(% style="color:#4f81bd" %)**Sixth, Seventh, Eighth, and Ninth bytes**:(%%) Latching time (Unit: ms)
1450 +0x01 : DO2 set to low
1401 1401  
1452 +0x00 : DO2 set to high
1402 1402  
1403 -(% style="color:red" %)**Note: **
1454 +0x11 : DO2 NO action
1404 1404  
1405 - Since firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1406 1406  
1407 - Before firmware v1.6.0, the latch time only supported 2 bytes.
1457 +**DO3_control_method_and_port_status **- 1 byte in hex
1408 1408  
1409 -(% style="color:red" %)**The device will uplink a packet if the downlink code executes successfully.**
1459 +0x01 : DO3 set to low
1410 1410  
1461 +0x00 : DO3 set to high
1411 1411  
1412 -**Example payload:**
1463 +0x11 : DO3 NO action
1413 1413  
1414 -**~1. A9 01 01 01 01 07 D0**
1415 1415  
1466 +**latching_time** : 4 bytes in hex
1467 +
1468 +(% style="color:red" %)**Note: **
1469 +
1470 + Since firmware v1.6.0, the latch time support 4 bytes or 2 bytes
1471 +
1472 + Before firmware v1.6.0, the latch time only supported 2 bytes.
1473 +
1474 +(% style="color:red" %)**The device will uplink a packet if the downlink code executes successfully.**
1475 +)))
1476 +|(% style="width:116px" %)**Payload format**|(% style="width:382px" %)<prefix><inverter_mode><DO1_control_method_and_port_status><DO2_control_method_and_port_status><DO2_control_method_and_port_status><latching_time>
1477 +|(% style="width:116px" %)**Example**|(% style="width:382px" %)(((
1478 +**A9 01 01 01 01 07 D0**
1479 +
1416 1416  DO1 pin, DO2 pin, and DO3 pin will be set to low, last for 2 seconds, and then revert to their original state.
1417 1417  
1418 -**2. A9 01 00 01 11 07 D0**
1419 1419  
1483 +**A9 01 00 01 11 07 D0**
1484 +
1420 1420  DO1 pin is set to high, DO2 pin is set to low, and DO3 pin takes no action. This lasts for 2 seconds and then reverts to the original state.
1421 1421  
1422 -**3. A9 00 00 00 00 07 D0**
1423 1423  
1488 +**A9 00 00 00 00 07 D0**
1489 +
1424 1424  DO1 pin, DO2 pin, and DO3 pin will be set to high, last for 2 seconds, and then all change to low.
1425 1425  
1426 -**4. A9 00 11 01 00 07 D0**
1427 1427  
1493 +**A9 00 11 01 00 07 D0**
1494 +
1428 1428  DO1 pin takes no action, DO2 pin is set to low, and DO3 pin is set to high. This lasts for 2 seconds, after which DO1 pin takes no action, DO2 pin is set to high, and DO3 pin is set to low.
1496 +)))
1429 1429  
1430 1430  
1431 1431  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
... ... @@ -1465,6 +1465,7 @@
1465 1465  
1466 1466  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1467 1467  
1536 +
1468 1468  Controls the relay output time.
1469 1469  
1470 1470  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1664,6 +1664,7 @@
1664 1664  
1665 1665  ==== 3.4.2.19 Counting ~-~- Set Saving Interval for 'Counting Result' ====
1666 1666  
1736 +
1667 1667  This command allows you to configure the device to save its counting result to internal flash memory at specified intervals. By setting a save time, the device will periodically store the counting data to prevent loss in case of power failure. The save interval can be adjusted to suit your requirements, with a minimum value of 30 seconds.
1668 1668  
1669 1669  (% style="color:#037691" %)**AT Command**
... ... @@ -1695,6 +1695,7 @@
1695 1695  
1696 1696  ==== 3.4.2.20 Reset saved RO and DO states ====
1697 1697  
1768 +
1698 1698  This command allows you to reset the saved relay output (RO) and digital output (DO) states when the device joins the network. By configuring this setting, you can control whether the device should retain or reset the relay states after a reset and rejoin to the network.
1699 1699  
1700 1700  (% style="color:#037691" %)**AT Command**
... ... @@ -1744,6 +1744,7 @@
1744 1744  
1745 1745  ==== 3.4.2.21 Encrypted payload ====
1746 1746  
1818 +
1747 1747  This command allows you to configure whether the device should upload data in an encrypted format or in plaintext. By default, the device encrypts the payload before uploading. You can toggle this setting to either upload encrypted data or transmit it without encryption.
1748 1748  
1749 1749  (% style="color:#037691" %)**AT Command:**
... ... @@ -1773,6 +1773,7 @@
1773 1773  
1774 1774  ==== 3.4.2.22 Get sensor value ====
1775 1775  
1848 +
1776 1776  This command allows you to retrieve and optionally uplink sensor readings through the serial port.
1777 1777  
1778 1778  (% style="color:#037691" %)**AT Command**
... ... @@ -1802,6 +1802,7 @@
1802 1802  
1803 1803  ==== 3.4.2.23 Resetting the downlink packet count ====
1804 1804  
1878 +
1805 1805  This command manages how the node handles mismatched downlink packet counts. It offers two modes: one disables the reception of further downlink packets if discrepancies occur, while the other resets the downlink packet count to align with the server, ensuring continued communication.
1806 1806  
1807 1807  (% style="color:#037691" %)**AT Command**
... ... @@ -1880,43 +1880,33 @@
1880 1880  
1881 1881  ==== 3.4.2.25 Copy downlink to uplink ====
1882 1882  
1883 -This command enables the device to immediately uplink the content of a received downlink packet back to the server. The command allows for quick data replication from downlink to uplink, with a fixed port number of 100.
1884 1884  
1885 -* (% style="color:#037691" %)**AT Command**(%%)**:**
1958 +This command enables the device to immediately uplink the payload of a received downlink packet back to the server. The command allows for quick data replication from downlink to uplink, with a fixed port number of 100.
1886 1886  
1887 -(% style="color:blue" %)**AT+RPL=5**   (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
1960 +(% style="color:#037691" %)**AT Command**(%%)**:**
1888 1888  
1889 -Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
1962 +(% style="color:blue" %)**AT+RPL=5**   (%%) ~/~/ After receiving a downlink payload from the server, the device will immediately uplink the payload back to the server using port number 100.
1890 1890  
1964 +Example：**aa xx xx xx xx**         ~/~/ **aa** indicates whether the configuration has changed: **00** means YES, and **01** means NO. **xx xx xx xx** are the bytes uplinked back.
1891 1891  
1966 +
1892 1892  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
1893 1893  
1894 1894  For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1895 1895  
1896 -(% border="2" style="width:500px" %)
1897 -|(% style="width:122px" %)**Command**|(% style="width:376px" %)(((
1898 -AT+RPL=5
1899 -
1900 -After receiving a downlink packet from the server, the node immediately uplinks the content of the packet back to the server using port number 100.
1901 -)))
1902 -|(% style="width:122px" %)**Example**|(% style="width:376px" %)(((
1903 -Downlink:
1904 -
1905 -01 00 02 58
1906 -
1907 -Uplink:
1908 -
1909 -01 01 00 02 58
1910 -)))
1911 -
1912 1912  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
1913 1913  
1914 1914  For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1915 1915  
1916 1916  
1976 +(% style="color:#037691" %)**Downlink Payload**(%%)**:**
1917 1917  
1978 +There is no downlink option available for this feature.
1979 +
1980 +
1918 1918  ==== 3.4.2.26 Query firmware version, frequency band, sub band, and TDC time ====
1919 1919  
1983 +
1920 1920  This command is used to query key information about the device, including its firmware version, frequency band, sub band, and TDC time. By sending the specified payload as a downlink, the server can retrieve this essential data from the device.
1921 1921  
1922 1922  * (((
... ... @@ -1935,10 +1935,13 @@
1935 1935  
1936 1936  == 3.5 Integrating with ThingsEye.io ==
1937 1937  
2002 +
1938 1938  The Things Stack application supports integration with ThingsEye.io. Once integrated, ThingsEye.io acts as an MQTT client for The Things Stack MQTT broker, allowing it to subscribe to upstream traffic and publish downlink traffic.
1939 1939  
2005 +
1940 1940  === 3.5.1 Configuring The Things Stack ===
1941 1941  
2008 +
1942 1942  We use The Things Stack Sandbox in this example:
1943 1943  
1944 1944  * In **The Things Stack Sandbox**, go to the **Application **for the LT-22222-L you added.
... ... @@ -1952,8 +1952,10 @@
1952 1952  
1953 1953  [[image:tts-mqtt-integration.png]]
1954 1954  
2022 +
1955 1955  === 3.5.2 Configuring ThingsEye.io ===
1956 1956  
2025 +
1957 1957  The ThingsEye.io IoT platform is not open for self-registration at the moment. If you are interested in testing the platform, please send your project information to admin@thingseye.io, and we will create an account for you.
1958 1958  
1959 1959  * Login to your [[ThingsEye.io >>https://thingseye.io]]account.
... ... @@ -2023,6 +2023,7 @@
2023 2023  
2024 2024  ==== 3.5.2.1 Viewing integration details ====
2025 2025  
2095 +
2026 2026  Click on your integration from the list. The **Integration details** window will appear with the **Details **tab selected. The **Details **tab shows all the settings you have provided for this integration.
2027 2027  
2028 2028  [[image:integration-details.png]]
... ... @@ -2034,8 +2034,10 @@
2034 2034  See also [[ThingsEye documentation>>https://wiki.thingseye.io/xwiki/bin/view/Main/]].
2035 2035  {{/info}}
2036 2036  
2037 -==== **3.5.2.2 Viewing events** ====
2038 2038  
2108 +==== 3.5.2.2 Viewing events ====
2109 +
2110 +
2039 2039  The **Events **tab displays all the uplink messages from the LT-22222-L.
2040 2040  
2041 2041  * Select **Debug **from the **Event type** dropdown.
... ... @@ -2049,13 +2049,15 @@
2049 2049  [[image:thingseye-json.png]]
2050 2050  
2051 2051  
2052 -==== **3.5.2.3 Deleting an integration** ====
2124 +==== 3.5.2.3 Deleting an integration ====
2053 2053  
2126 +
2054 2054  If you want to delete an integration, click the **Delete integratio**n button on the Integrations page.
2055 2055  
2056 2056  
2057 2057  ==== 3.5.2.4 Creating a Dashboard to Display and Analyze LT-22222-L Data ====
2058 2058  
2132 +
2059 2059  This will be added soon.
2060 2060  
2061 2061  
... ... @@ -2272,6 +2272,7 @@
2272 2272  
2273 2273  == 3.7 LED Indicators ==
2274 2274  
2349 +
2275 2275  The table below lists the behavior of LED indicators for each port function.
2276 2276  
2277 2277  (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
... ... @@ -2304,10 +2304,13 @@
2304 2304  
2305 2305  = 4. Using AT Commands =
2306 2306  
2382 +
2307 2307  The LT-22222-L supports programming using AT Commands.
2308 2308  
2385 +
2309 2309  == 4.1 Connecting the LT-22222-L to a PC ==
2310 2310  
2388 +
2311 2311  (((
2312 2312  You can use a USB-to-TTL adapter/converter along with a 3.5mm Program Cable to connect the LT-22222-L to a PC, as shown below.
2313 2313  
... ... @@ -2327,7 +2327,10 @@
2327 2327  (((
2328 2328  You can find more details in the [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
2329 2329  
2408 +
2330 2330  == 4.2 LT-22222-L related AT commands ==
2410 +
2411 +
2331 2331  )))
2332 2332  
2333 2333  (((
... ... @@ -2524,16 +2524,19 @@
2524 2524  
2525 2525  == 5.1 Counting how many objects pass through the flow line ==
2526 2526  
2608 +
2527 2527  See [[How to set up to setup counting for objects passing through the flow line>>How to set up to count objects pass in flow line]]?
2528 2528  
2529 2529  
2530 2530  = 6. FAQ =
2531 2531  
2614 +
2532 2532  This section contains some frequently asked questions, which can help you resolve common issues and find solutions quickly.
2533 2533  
2534 2534  
2535 2535  == 6.1 How to update the firmware? ==
2536 2536  
2620 +
2537 2537  Dragino frequently releases firmware updates for the LT-22222-L. Updating your LT-22222-L with the latest firmware version helps to:
2538 2538  
2539 2539  * Support new features
... ... @@ -2586,6 +2586,8 @@
2586 2586  (((
2587 2587  (((
2588 2588  == 6.2 How to change the LoRaWAN frequency band/region? ==
2673 +
2674 +
2589 2589  )))
2590 2590  )))
2591 2591  
... ... @@ -2597,6 +2597,8 @@
2597 2597  
2598 2598  
2599 2599  == 6.3 How to setup LT-22222-L to work with a Single Channel Gateway, such as LG01/LG02? ==
2686 +
2687 +
2600 2600  )))
2601 2601  
2602 2602  (((
... ... @@ -2670,11 +2670,13 @@
2670 2670  
2671 2671  == 6.4 How to change the uplink interval? ==
2672 2672  
2761 +
2673 2673  Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/]]
2674 2674  
2675 2675  
2676 2676  == 6.5 Can I see the counting event in the serial output? ==
2677 2677  
2767 +
2678 2678  (((
2679 2679  You can run the AT command **AT+DEBUG** to view the counting event in the serial output. If the firmware is too old and doesn’t support AT+DEBUG, update to the latest firmware first.
2680 2680  
... ... @@ -2681,6 +2681,7 @@
2681 2681  
2682 2682  == 6.6 Can I use point-to-point communication with LT-22222-L? ==
2683 2683  
2774 +
2684 2684  Yes, you can. Please refer to the [[Point-to-Point Communication of LT-22222-L>>https://wiki.dragino.com/xwiki/bin/view/Main/%20Point%20to%20Point%20Communication%20of%20LT-22222-L/]] page. The firmware that supports point-to-point communication can be found [[here>>https://github.com/dragino/LT-22222-L/releases]].
2685 2685  
2686 2686  
... ... @@ -2689,6 +2689,7 @@
2689 2689  (((
2690 2690  == 6.7 Why does the relay output default to an open relay after the LT-22222-L is powered off? ==
2691 2691  
2783 +
2692 2692  * If the device is not properly shut down and is directly powered off.
2693 2693  * It will default to a power-off state.
2694 2694  * In modes 2 to 5, the DO/RO status and pulse count are saved to flash memory.
... ... @@ -2696,6 +2696,7 @@
2696 2696  
2697 2697  == 6.8 Can I setup LT-22222-L as a NC (Normally Closed) relay? ==
2698 2698  
2791 +
2699 2699  The LT-22222-L's built-in relay is Normally Open (NO). You can use an external relay to achieve a Normally Closed (NC) configuration. The circuit diagram is shown below:
2700 2700  
2701 2701  
... ... @@ -2704,16 +2704,19 @@
2704 2704  
2705 2705  == 6.9 Can the LT-22222-L save the RO state? ==
2706 2706  
2800 +
2707 2707  To enable this feature, the firmware version must be 1.6.0 or higher.
2708 2708  
2709 2709  
2710 2710  == 6.10 Why does the LT-22222-L always report 15.585V when measuring the AVI? ==
2711 2711  
2806 +
2712 2712  It is likely that the GND is not connected during the measurement, or that the wire connected to the GND is loose.
2713 2713  
2714 2714  
2715 2715  = 7. Troubleshooting =
2716 2716  
2812 +
2717 2717  This section provides some known troubleshooting tips.
2718 2718  
2719 2719  
... ... @@ -2722,6 +2722,8 @@
2722 2722  (((
2723 2723  (((
2724 2724  == 7.1 Downlink isn't working. How can I solve this? ==
2821 +
2822 +
2725 2725  )))
2726 2726  )))
2727 2727  
... ... @@ -2733,6 +2733,8 @@
2733 2733  
2734 2734  
2735 2735  == 7.2 Having trouble uploading an image? ==
2834 +
2835 +
2736 2736  )))
2737 2737  
2738 2738  (((
... ... @@ -2743,6 +2743,8 @@
2743 2743  
2744 2744  
2745 2745  == 7.3 Why can't I join TTN in the US915 /AU915 bands? ==
2846 +
2847 +
2746 2746  )))
2747 2747  
2748 2748  (((
... ... @@ -2752,6 +2752,7 @@
2752 2752  
2753 2753  == 7.4 Why can the LT-22222-L perform uplink normally, but cannot receive downlink? ==
2754 2754  
2857 +
2755 2755  The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue.
2756 2756  Use this command to synchronize their counts: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
2757 2757  
... ... @@ -2758,6 +2758,7 @@
2758 2758  
2759 2759  = 8. Ordering information =
2760 2760  
2864 +
2761 2761  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
2762 2762  
2763 2763  (% style="color:#4f81bd" %)**XXX:**
... ... @@ -2774,6 +2774,7 @@
2774 2774  
2775 2775  = 9. Package information =
2776 2776  
2881 +
2777 2777  **Package includes**:
2778 2778  
2779 2779  * 1 x LT-22222-L I/O Controller
... ... @@ -2790,6 +2790,7 @@
2790 2790  
2791 2791  = 10. Support =
2792 2792  
2898 +
2793 2793  * (((
2794 2794  Support is available Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different time zones, we cannot offer live support. However, your questions will be answered as soon as possible within the aforementioned schedule.
2795 2795  )))
... ... @@ -2801,6 +2801,7 @@
2801 2801  
2802 2802  = 11. Reference​​​​​ =
2803 2803  
2910 +
2804 2804  * 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]]
2805 2805  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2806 2806  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
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