Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 177.1 >
edited by Dilisi S
on 2024/11/08 06:48
To version < 194.1 >
edited by Dilisi S
on 2024/11/16 00:01
>
Change comment: a few edits on nov 15

Summary

Details

Page properties
Title
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1 -LT-22222-L -- LoRa IO Controller User Manual
1 +LT-22222-L -- LoRa I/O Controller User Manual
Content
... ... @@ -33,8 +33,6 @@
33 33  With the LT-22222-L I/O Controller, users can transmit data over ultra-long distances with low power consumption using LoRa, a spread-spectrum modulation technique derived from chirp spread spectrum (CSS) technology that operates on license-free ISM bands.
34 34  )))
35 35  
36 -> The LT Series I/O Controllers are designed for easy, low-cost installation on LoRaWAN networks.
37 -
38 38  (((
39 39  You can connect the LT-22222-L I/O Controller to a LoRaWAN network service provider in several ways:
40 40  
... ... @@ -42,7 +42,9 @@
42 42  * If there is no public LoRaWAN coverage in your area, you can set up a LoRaWAN gateway, or multiple gateways, and connect them to a LoRaWAN network server to create adequate coverage. Then, register the LT-22222-L I/O controller with this network.
43 43  * Setup your own private LoRaWAN network.
44 44  
45 -> You can use a LoRaWAN gateway, such as the Dragino LG308, to expand or create LoRaWAN coverage in your area.
43 +{{info}}
44 + You can use a LoRaWAN gateway, such as the [[Dragino LG308>>https://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]], to expand or create LoRaWAN coverage in your area.
45 +{{/info}}
46 46  )))
47 47  
48 48  (((
... ... @@ -58,24 +58,24 @@
58 58  * STM32L072xxxx MCU
59 59  * SX1276/78 Wireless Chip 
60 60  * Power Consumption:
61 -** Idle: 4mA@12v
62 -** 20dB Transmit: 34mA@12v
61 +** Idle: 4mA@12V
62 +** 20dB Transmit: 34mA@12V
63 63  * Operating Temperature: -40 ~~ 85 Degrees, No Dew
64 64  
65 65  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
66 66  
67 -* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
67 +* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50V, or 220V with optional external resistor)
68 68  * 2 x Digital Output (NPN output. Max pull-up voltage 36V,450mA)
69 69  * 2 x Relay Output (5A@250VAC / 30VDC)
70 70  * 2 x 0~~20mA Analog Input (res:0.01mA)
71 -* 2 x 0~~30V Analog Input (res:0.01v)
71 +* 2 x 0~~30V Analog Input (res:0.01V)
72 72  * Power Input 7~~ 24V DC. 
73 73  
74 74  (% style="color:#037691" %)**LoRa Spec:**
75 75  
76 76  * Frequency Range:
77 -** Band 1 (HF): 862 ~~ 1020 Mhz
78 -** Band 2 (LF): 410 ~~ 528 Mhz
77 +** Band 1 (HF): 862 ~~ 1020 MHz
78 +** Band 2 (LF): 410 ~~ 528 MHz
79 79  * 168 dB maximum link budget.
80 80  * +20 dBm - 100 mW constant RF output vs.
81 81  * +14 dBm high-efficiency PA.
... ... @@ -94,7 +94,7 @@
94 94  
95 95  == 1.3 Features ==
96 96  
97 -* LoRaWAN Class A & Class C protocol
97 +* LoRaWAN Class A & Class C modes
98 98  * Optional Customized LoRa Protocol
99 99  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
100 100  * AT Commands to change parameters
... ... @@ -104,45 +104,27 @@
104 104  
105 105  == 1.4 Applications ==
106 106  
107 -* Smart Buildings & Home Automation
108 -* Logistics and Supply Chain Management
109 -* Smart Metering
110 -* Smart Agriculture
111 -* Smart Cities
112 -* Smart Factory
107 +* Smart buildings & home automation
108 +* Logistics and supply chain management
109 +* Smart metering
110 +* Smart agriculture
111 +* Smart cities
112 +* Smart factory
113 113  
114 -== 1.5 Hardware Variants ==
114 += 2. Assembling the device =
115 115  
116 +== 2.1 Connecting the antenna ==
116 116  
117 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
118 -|(% style="background-color:#4f81bd; color:white; width:103px" %)**Model**|(% style="background-color:#4f81bd; color:white; width:131px" %)**Photo**|(% style="background-color:#4f81bd; color:white; width:266px" %)**Description**
119 -|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
120 -(% style="text-align:center" %)
121 -[[image:image-20230424115112-1.png||height="106" width="58"]]
122 -)))|(% style="width:334px" %)(((
123 -* 2 x Digital Input (Bi-direction)
124 -* 2 x Digital Output
125 -* 2 x Relay Output (5A@250VAC / 30VDC)
126 -* 2 x 0~~20mA Analog Input (res:0.01mA)
127 -* 2 x 0~~30V Analog Input (res:0.01v)
128 -* 1 x Counting Port
129 -)))
118 +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.
130 130  
131 -= 2. Assembling the Device =
120 +{{warning}}
121 +Warning! Do not power on the device without connecting the antenna.
122 +{{/warning}}
132 132  
133 -== 2.1 What is included in the package? ==
134 -
135 -The package includes the following items:
136 -
137 -* 1 x LT-22222-L I/O Controller
138 -* 1 x LoRaWAN antenna matched to the frequency of the LT-22222-L
139 -* 1 x bracket for wall mounting
140 -* 1 x programming cable
141 -
142 -Attach the LoRaWAN antenna to the antenna connector, ANT,** **located on the top right side of the device, next to the upper terminal block. Secure the antenna by tightening it clockwise.
143 -
144 144  == 2.2 Terminals ==
145 145  
126 +The  LT-22222-L has two screw terminal blocks. The upper screw treminal block has 6 terminals and the lower screw terminal block has 10 terminals.
127 +
146 146  Upper screw terminal block (from left to right):
147 147  
148 148  (% style="width:634px" %)
... ... @@ -169,28 +169,30 @@
169 169  |(% style="width:296px" %)DO2|(% style="width:334px" %)Digital Output 2
170 170  |(% style="width:296px" %)DO1|(% style="width:334px" %)Digital Output 1
171 171  
172 -== 2.3 Powering the LT-22222-L ==
154 +== 2.3 Powering the device ==
173 173  
174 -The LT-22222-L I/O Controller can be powered by a 7–24V DC power source. Connect the 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.
156 +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  
158 +Once powered, 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. The **TX LED** will be on for **5 seconds** after joining the network. When there is a **downlink** message from the server, the **RX LED** will be on for **1 second**. When the device is sending an uplink message to the server, the **TX LED** will be on for **1 second**. See also LED status.
176 176  
177 -[[image:1653297104069-180.png]]
160 +{{warning}}
161 +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.
162 +{{/warning}}
178 178  
179 179  
180 -= 3. Operation Mode =
165 +[[image:1653297104069-180.png]]
181 181  
182 -== 3.1 How does it work? ==
183 183  
168 += 3. Registering with a LoRaWAN Network Server =
169 +
184 184  By default, the LT-22222-L is configured to operate in LoRaWAN Class C mode. It supports OTAA (Over-the-Air Activation), the most secure method for activating a device with a LoRaWAN network server. The LT-22222-L comes with device registration information that allows you to register it with a LoRaWAN network, enabling the device to perform OTAA activation with the network server upon initial power-up and after any subsequent reboots.
185 185  
186 -For LT-22222-L, the LED will show the Join status: After powering on, the TX LED will fast-blink 5 times which means the LT-22222-L will enter the working mode and start to JOIN the LoRaWAN network. The TX LED will be on for 5 seconds after joining the network. When there is a message from the server, the RX LED will be on for 1 second. 
172 +After powering on, the **TX LED** will **fast-blink 5 times** which means the LT-22222-L will enter the **work mode** and start to **join** the LoRaWAN network. The **TX LED** will be on for **5 seconds** after joining the network. When there is a **downlink** message from the server, the **RX LED** will be on for **1 second**. When the device is sending an uplink message to the server, the **TX LED** will be on for **1 second**. See also LED status.
187 187  
188 188  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.
189 189  
190 -== 3.2 Registering with a LoRaWAN network server ==
176 +The network diagram below shows how the LT-22222-L is connected to a typical LoRaWAN network.
191 191  
192 -The diagram below shows how the LT-22222-L connects to a typical LoRaWAN network.
193 -
194 194  [[image:image-20220523172350-1.png||height="266" width="864"]]
195 195  
196 196  === 3.2.1 Prerequisites ===
... ... @@ -203,49 +203,60 @@
203 203  
204 204  === 3.2.2 The Things Stack Sandbox (TTSS) ===
205 205  
190 +The Things Stack Sandbox was formally called The Things Stack Community Edition.
191 +
206 206  * Log in to your [[The Things Stack Sandbox>>https://eu1.cloud.thethings.network]] account.
207 -* Create an application if you do not have one yet.
208 -* Register LT-22222-L with that application. Two registration options are available:
193 +* Create an application with The Things Stack if you do not have one yet.
194 +* Go to your application page and click on the **End devices** in the left menu.
195 +* On the End devices page, click on **+ Register end device**. Two registration options are available:
209 209  
210 -==== Using the LoRaWAN Device Repository: ====
197 +==== 3.2.2.1 Using the LoRaWAN Device Repository ====
211 211  
212 -* Go to your application and click on the **Register end device** button.
213 213  * On the **Register end device** page:
214 -** Select the option **Select the end device in the LoRaWAN Device Repository**.
215 -** Choose the **End device brand**, **Model**, **Hardware version**, **Firmware version**, and **Profile (Region)**.
216 -** Select the **Frequency plan** that matches your device.
200 +** Select the option **Select the end device in the LoRaWAN Device Repository **under **Input method**.
201 +** Select the **End device brand**, **Model**, **Hardware version**, **Firmware version**, and **Profile (Region)** from the respective dropdown lists.
202 +*** **End device brand**: Dragino Technology Co., Limited
203 +*** **Model**: LT22222-L I/O Controller
204 +*** **Hardware ver**: Unknown
205 +*** **Firmware ver**: 1.6.0
206 +*** **Profile (Region)**: Select the region that matches your device.
207 +** Select the **Frequency plan** that matches your device from the **Frequency plan** dropdown list.
217 217  
218 218  [[image:lt-22222-l-dev-repo-reg-p1.png||height="625" width="1000"]]
219 219  
220 -*
221 -** Enter the **AppEUI** in the **JoinEUI** field and click the **Confirm** button.
222 -** Enter the **DevEUI** in the **DevEUI** field.
223 -** Enter the **AppKey** in the **AppKey** field.
224 -** In the **End device ID** field, enter a unique name within this application for your LT-22222-N.
211 +
212 +* Register end device page continued...
213 +** Enter the **AppEUI** in the **JoinEUI** field and click the **Confirm** button. If The Things Stack accepts the JoinEUI you provided, it will display the message 'This end device can be registered on the network'.
214 +** In the **DevEUI** field, enter the **DevEUI**.
215 +** In the **AppKey** field, enter the **AppKey.**
216 +** In the **End device ID** field, enter a unique name for your LT-22222-N within this application.
225 225  ** Under **After registration**, select the **View registered end device** option.
226 226  
227 227  [[image:lt-22222-l-dev-repo-reg-p2.png||height="625" width="1000"]]
228 228  
229 -==== Entering device information manually: ====
221 +==== ====
230 230  
223 +==== 3.2.2.2 Adding device manually ====
224 +
231 231  * On the **Register end device** page:
232 -** Select the **Enter end device specifies manually** option as the input method.
233 -** Select the **Frequency plan** that matches your device.
234 -** Select the **LoRaWAN version**.
235 -** Select the **Regional Parameters version**.
236 -** Click **Show advanced activation, LoRaWAN class and cluster settings** link to expand the section.
237 -** Select **Over the air activation (OTAA)** option under the **Activation mode**
238 -** Select **Class C (Continuous)** from the **Additional LoRaWAN class capabilities**.
226 +** Select the option **Enter end device specifies manually** under **Input method**.
227 +** Select the **Frequency plan** that matches your device from the **Frequency plan** dropdown list.
228 +** Select the **LoRaWAN version** as **LoRaWAN Specification 1.0.3**
229 +** Select the **Regional Parameters version** as** RP001 Regional Parameters 1.0.3 revision A**
230 +** Click **Show advanced activation, LoRaWAN class and cluster settings** link to expand the hidden section.
231 +** Select the option **Over the air activation (OTAA)** under the **Activation mode.**
232 +** Select **Class C (Continuous)** from the **Additional LoRaWAN class capabilities** dropdown list.
239 239  
240 240  [[image:lt-22222-l-manually-p1.png||height="625" width="1000"]]
241 241  
242 242  
243 -* Enter **AppEUI** in the **JoinEUI** field and click the **Confirm** button.
244 -* Enter **DevEUI** in the **DevEUI** field.
245 -* Enter **AppKey** in the **AppKey** field.
246 -* In the **End device ID** field, enter a unique name within this application for your LT-22222-N.
247 -* Under **After registration**, select the **View registered end device** option.
248 -* Click the **Register end device** button.
237 +* Register end device page continued...
238 +** Enter the **AppEUI** in the **JoinEUI** field and click the **Confirm** button. If The Things Stack accepts the JoinEUI you provided, it will display the message 'This end device can be registered on the network'
239 +** In the **DevEUI** field, enter the **DevEUI**.
240 +** In the **AppKey** field, enter the **AppKey**.
241 +** In the **End device ID** field, enter a unique name for your LT-22222-N within this application.
242 +** Under **After registration**, select the **View registered end device** option.
243 +** Click the **Register end device** button.
249 249  
250 250  [[image:lt-22222-l-manually-p2.png||height="625" width="1000"]]
251 251  
... ... @@ -252,30 +252,40 @@
252 252  
253 253  You will be navigated to the **Device overview** page.
254 254  
250 +
255 255  [[image:lt-22222-device-overview.png||height="625" width="1000"]]
256 256  
257 257  
258 -==== Joining ====
254 +==== 3.2.2.3 Joining ====
259 259  
260 -Click on **Live data** in the left navigation. Then, power on LT-22222-L. It will join The Things Stack LoRaWAN network server. You can see the **join request**, **join accept**, followed by **uplink data messages** form the device showing in the **Live data** panel.
256 +On the Device overview page, click on **Live data** tab. The Live data panel for your device will display.
261 261  
258 +Now power on your LT-22222-L. It will begin joining The Things Stack. In the **Live data** panel, you can see the **join-request** and **join-accept** messages exchanged between the device and the network server. Once successfully joined, the device will send its first **uplink data message** to the application it belongs to (in this example, **dragino-docs**).
259 +
260 +
262 262  [[image:lt-22222-join-network.png||height="625" width="1000"]]
263 263  
264 264  
265 -Click on a message with the messge type, **Forward uplink data message**. You can see the  decoded uplink payload as shown below.
264 +By default, you will receive an uplink data message from the device every 10 minutes.
266 266  
266 +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.
267 +
267 267  [[image:lt-22222-ul-payload-decoded.png]]
268 268  
269 269  
270 270  If you can't see the decoded payload, it is because you haven't added the uplink formatter code. To add the uplink formatter code, select **End devices** > **LT-22222-L** > **Payload formatters** > **Uplink**. Then  select **Use Device repository formatters** for the **Formatter type** dropdown. Click the **Save changes** button to apply the changes.
271 271  
273 +{{info}}
274 +The Things Stack provides two levels of payload formatters: application level and device level. The device-level payload formatters **override **the application-level payload formatters.
275 +{{/info}}
276 +
272 272  [[image:lt-22222-ul-payload-fmt.png||height="686" width="1000"]]
273 273  
274 274  
275 -== 3.3 Work Modes and their Uplink Payload formats ==
280 +== 3.3 Work Modes and Uplink Payload formats ==
276 276  
277 277  
278 -The LT-22222-L has 5 **work modes**. It also has an interrupt/trigger mode for different types of applications that can be used together with any working mode as an additional feature. The default mode is MOD1 and you can switch between these modes using AT commands.
283 +The LT-22222-L has 5 **work modes**. It also has an interrupt/trigger mode for different types of applications that can be used together with any work mode as an additional feature. The default mode is MOD1 and you can switch between these modes using AT commands.
279 279  
280 280  * (% style="color:blue" %)**MOD1**(%%): (default mode/factory set): 2ACI + 2AVI + DI + DO + RO
281 281  
... ... @@ -289,11 +289,19 @@
289 289  
290 290  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
291 291  
297 +The uplink messages are sent over LoRaWAN FPort 2. By default, an uplink message is sent every 10 minutes.
298 +
292 292  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
293 293  
294 294  (((
295 -The uplink payload is 11 bytes long. Uplink messages are sent over LoRaWAN FPort 2. By default, one uplink is sent every 10 minutes. (% style="display:none" wfd-invisible="true" %)
302 +This is the default mode.
296 296  
304 +The uplink payload is 11 bytes long.
305 +
306 +(% style="color:red" %)**Note:The maximum count depends on the bytes it is.
307 +The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
308 +It starts counting again when it reaches the maximum value.**(% style="display:none" wfd-invisible="true" %)
309 +
297 297  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
298 298  |(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
299 299  |Value|(((
... ... @@ -340,13 +340,13 @@
340 340  
341 341  * [1] The RO1 relay channel is CLOSED, and the RO1 LED is ON.
342 342  * [0] The RO2 relay channel is OPEN, and the RO2 LED is OFF.
343 -* [1] DI3 - not used for LT-22222-L.
356 +* **[1] DI3 - not used for LT-22222-L.**
344 344  * [0] DI2 channel input is LOW, and the DI2 LED is OFF.
345 345  * [1] DI1 channel input state:
346 346  ** DI1 is FLOATING when no sensor is connected between DI1+ and DI1-.
347 347  ** DI1 is HIGH when a sensor is connected between DI1- and DI1+ and the sensor is ACTIVE.
348 348  ** DI1 LED is ON in both cases.
349 -* [0] DO3 - not used for LT-22222-L.
362 +* **[0] DO3 - not used for LT-22222-L.**
350 350  * [1] DO2 channel output is LOW, and the DO2 LED is ON.
351 351  * [0] DO1 channel output state:
352 352  ** DO1 is FLOATING when there is no load between DO1 and V+.
... ... @@ -363,6 +363,10 @@
363 363  (((
364 364  The uplink payload is 11 bytes long.
365 365  
379 +(% style="color:red" %)**Note:The maximum count depends on the bytes it is.
380 +The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
381 +It starts counting again when it reaches the maximum value.**
382 +
366 366  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
367 367  |(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
368 368  |Value|COUNT1|COUNT2 |DIDORO*|(((
... ... @@ -371,7 +371,7 @@
371 371  )))
372 372  
373 373  (((
374 -(% style="color:#4f81bd" %)***DIDORO**(%%) is a combination of RO1, RO2, DO3, DO2 and DO1, and its size is 1 byte long as shown below.
391 +(% style="color:#4f81bd" %)***DIDORO**(%%) is a combination of RO1, RO2, FIRST, Reserve, Reserve, DO3, DO2 and DO1, and its size is 1 byte long as shown below.
375 375  
376 376  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
377 377  |**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
... ... @@ -427,6 +427,9 @@
427 427  
428 428  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
429 429  
447 +(% style="color:red" %)**Note: The maximum count depends on the bytes it is.
448 +The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
449 +It starts counting again when it reaches the maximum value.**
430 430  
431 431  **LT22222-L**: In this mode, the DI1 is used as a counting pin.
432 432  
... ... @@ -477,7 +477,11 @@
477 477  
478 478  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
479 479  
500 +(% style="color:red" %)**Note:The maximum count depends on the bytes it is.
501 +The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
502 +It starts counting again when it reaches the maximum value.**
480 480  
504 +
481 481  (((
482 482  **LT22222-L**: In this mode, the DI1 is used as a counting pin.
483 483  )))
... ... @@ -530,19 +530,23 @@
530 530  (((
531 531  **In addition to that, below are the commands for AVI1 Counting:**
532 532  
533 -(% style="color:blue" %)**AT+SETCNT=3,60**(%%)**  (Sets AVI Count to 60)**
557 +(% style="color:blue" %)**AT+SETCNT=3,60 **(%%)**(Sets AVI Count to 60)**
534 534  
535 -(% style="color:blue" %)**AT+VOLMAX=20000**(%%)**  (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
559 +(% style="color:blue" %)**AT+VOLMAX=20000 **(%%)**(If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
536 536  
537 -(% style="color:blue" %)**AT+VOLMAX=20000,0**(%%)**  (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
561 +(% style="color:blue" %)**AT+VOLMAX=20000,0 **(%%)**(If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
538 538  
539 -(% style="color:blue" %)**AT+VOLMAX=20000,1**(%%)**  (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
563 +(% style="color:blue" %)**AT+VOLMAX=20000,1 **(%%)**(If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
540 540  )))
541 541  
542 542  
543 543  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
544 544  
569 +(% style="color:red" %)**Note:The maximum count depends on the bytes it is.
570 +The maximum count for four bytes is FFFFFFFF (hex) = 4294967295 (dec).
571 +It starts counting again when it reaches the maximum value.**
545 545  
573 +
546 546  **LT22222-L**: In this mode, the DI1 is used as a counting pin.
547 547  
548 548  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
... ... @@ -600,15 +600,17 @@
600 600  
601 601  For example, if you configured the following commands:
602 602  
603 -* **AT+MOD=1 ** **~-~->**  The normal working mode
631 +* **AT+MOD=1 ** **~-~->**  The default work mode
604 604  * **AT+ADDMOD6=1**   **~-~->**  Enable trigger mode
605 605  
606 606  The LT-22222-L will continuously monitor AV1, AV2, AC1, and AC2 every 5 seconds. LT will send uplink packets in two cases:
607 607  
608 608  1. Periodically uplink (Based on TDC time). The payload is the same as in normal mode (MOD=1 for the commands above). These are (% style="color:#4f81bd" %)**unconfirmed**(%%) uplinks.
609 -1. Trigger uplink when the trigger condition is met. LT will send two packets in this case. The first uplink uses the payload specified in trigger mode (MOD=6). The second packet uses the normal mode payload (MOD=1 as set above). Both are (% style="color:#4f81bd" %)**CONFIRMED uplinks.**
637 +1. (((
638 +Trigger uplink when the trigger condition is met. LT will send two packets in this case. The first uplink uses the payload specified in trigger mode (MOD=6). The second packet uses the normal mode payload (MOD=1 as set above). Both are (% style="color:#4f81bd" %)**confirmed uplinks.**
639 +)))
610 610  
611 -(% style="color:#037691" %)**AT Command to set Trigger Condition**:
641 +(% style="color:#037691" %)**AT Commands to set Trigger Condition**:
612 612  
613 613  (% style="color:#4f81bd" %)**Trigger based on voltage**:
614 614  
... ... @@ -780,50 +780,68 @@
780 780  )))
781 781  
782 782  
783 -== 3.4 ​Configure LT via AT Commands or Downlinks ==
813 +== 3.4 ​Configure LT-22222-L via AT Commands or Downlinks ==
784 784  
785 -
786 786  (((
787 -User can configure LT I/O Controller via AT Commands or LoRaWAN Downlinks.
816 +You can configure LT-22222-L I/O Controller via AT Commands or LoRaWAN Downlinks.
788 788  )))
789 789  
790 790  (((
791 791  (((
792 -There are two kinds of Commands:
821 +There are two tytes of commands:
793 793  )))
794 794  )))
795 795  
796 -* (% style="color:blue" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
825 +* (% style="color:blue" %)**Common commands**(%%):
797 797  
798 -* (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
827 +* (% style="color:blue" %)**Sensor-related commands**(%%):
799 799  
800 -=== 3.4.1 Common Commands ===
829 +=== 3.4.1 Common commands ===
801 801  
802 802  (((
803 -These commands should be available for all Dragino sensors, 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]].
832 +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.
804 804  )))
805 805  
835 +=== 3.4.2 Sensor-related commands ===
806 806  
807 -=== 3.4.2 Sensor related commands ===
837 +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.
808 808  
809 809  ==== 3.4.2.1 Set Transmit Interval ====
810 810  
811 811  Sets the uplink interval of the device. The default uplink transmission interval is 10 minutes.
812 812  
813 -* (% style="color:#037691" %)**AT command:**
843 +(% style="color:#037691" %)**AT command**
814 814  
815 -(% style="color:blue" %)**AT+TDC=N**
845 +(% style="width:500px" %)
846 +|**Command**|AT+TDC<time>
847 +|**Response**|
848 +|**Parameters**|<time> uplink interval is in milliseconds
849 +|**Example**|(((
850 +AT+TDC=30000
816 816  
817 -where N is the time in milliseconds.
852 +Sets the uplink interval to 30,000 milliseconds (30 seconds)
853 +)))
818 818  
819 -**Example: **AT+TDC=30000. This will set the uplink interval to 30 seconds
855 +(% style="color:#037691" %)**Downlink payload**
820 820  
857 +(% style="width:500px" %)
858 +|**Payload**|(((
859 +<prefix><time>
860 +)))
861 +|**Parameters**|(((
862 +<prefix> 0x01
821 821  
822 -* (% style="color:#037691" %)**Downlink payload (prefix 0x01):**
864 +<time> uplink interval is in milliseconds, represented by 3  bytes in hexadecimal.
865 +)))
866 +|**Example**|(((
867 +01 **00 75 30**
823 823  
824 -(% style="color:blue" %)**0x01 aa bb cc  **(%%)** ~/~/ Same as AT+TDC=0x(aa bb cc)**
869 +Sets the uplink interval to 30,000 milliseconds (30 seconds)
825 825  
871 +Conversion: 30000 (dec) = 00 75 30 (hex)
826 826  
873 +See [[RapidTables>>https://www.rapidtables.com/convert/number/decimal-to-hex.html?x=30000]]
874 +)))
827 827  
828 828  ==== 3.4.2.2 Set the Work Mode (AT+MOD) ====
829 829  
... ... @@ -845,8 +845,8 @@
845 845  
846 846  ==== 3.4.2.3 Poll an uplink ====
847 847  
896 +Requests the device to send an uplink.
848 848  
849 -Asks the device to send an uplink.
850 850  
851 851  * (% style="color:#037691" %)**AT command:**(%%) There is no AT Command to poll uplink
852 852  
... ... @@ -860,7 +860,6 @@
860 860  
861 861  ==== 3.4.2.4 Enable/Disable Trigger Mode ====
862 862  
863 -
864 864  Enable or disable the trigger mode (see also [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]).
865 865  
866 866  * (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+ADDMOD6=1 or 0**
... ... @@ -878,9 +878,8 @@
878 878  
879 879  ==== 3.4.2.5 Poll trigger settings ====
880 880  
928 +Polls the trigger settings.
881 881  
882 -Polls the trigger settings
883 -
884 884  * (% style="color:#037691" %)**AT Command:**
885 885  
886 886  There is no AT Command for this feature.
... ... @@ -891,11 +891,10 @@
891 891  
892 892  
893 893  
894 -==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
940 +==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as a trigger ====
895 895  
942 +Enable or disable DI1/DI2/DI2 as a trigger.
896 896  
897 -Enable or Disable DI1/DI2/DI2 as trigger,
898 -
899 899  * (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
900 900  
901 901  **Example:** AT+ DTRI =1,0 (Enable DI1 trigger / disable DI2 trigger)
... ... @@ -907,11 +907,10 @@
907 907  
908 908  
909 909  
910 -==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
955 +==== 3.4.2.7 Trigger1 – Set DI or DI3 as a trigger ====
911 911  
957 +Sets DI1 or DI3 (for LT-33222-L) as a trigger.
912 912  
913 -Set DI1 or DI3(for LT-33222-L) trigger.
914 -
915 915  * (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+TRIG1=a,b**
916 916  
917 917  (% style="color:red" %)**a :** (%%)Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
... ... @@ -926,12 +926,10 @@
926 926  (% style="color:blue" %)**0x09 01 aa bb cc    ** (%%) ~/~/ same as AT+TRIG1=aa,0x(bb cc)
927 927  
928 928  
973 +==== 3.4.2.8 Trigger2 – Set DI2 as a trigger ====
929 929  
930 -==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
975 +Sets DI2 as a trigger.
931 931  
932 -
933 -Sets DI2 trigger.
934 -
935 935  * (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+TRIG2=a,b**
936 936  
937 937  (% style="color:red" %)**a :** (%%)Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge (for MOD=1).
... ... @@ -946,12 +946,10 @@
946 946  (% style="color:blue" %)**0x09 02 aa bb cc   ** (%%)~/~/ same as AT+TRIG2=aa,0x(bb cc)
947 947  
948 948  
991 +==== 3.4.2.9 Trigger – Set AC (current) as a trigger ====
949 949  
950 -==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
993 +Sets the current trigger based on the AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
951 951  
952 -
953 -Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
954 -
955 955  * (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+ACLIM**
956 956  
957 957  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 01 )**
... ... @@ -962,9 +962,8 @@
962 962  
963 963  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
964 964  
1005 +Sets the current trigger based on the AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
965 965  
966 -Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
967 -
968 968  * (% style="color:#037691" %)**AT Command**(%%): (% style="color:blue" %)**AT+AVLIM    **(%%)** See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
969 969  
970 970  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 00 )**
... ... @@ -972,10 +972,8 @@
972 972  (% style="color:blue" %)**0x AA 00 aa bb cc dd ee ff gg hh    ** (%%) ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
973 973  
974 974  
975 -
976 976  ==== 3.4.2.11 Trigger – Set minimum interval ====
977 977  
978 -
979 979  Sets AV and AC trigger minimum interval. Device won't response to the second trigger within this set time after the first trigger.
980 980  
981 981  * (% style="color:#037691" %)**AT Command**(%%): (% style="color:blue" %)**AT+ATDC=5        ** ~/~/ (%%)Device won't response the second trigger within 5 minute after the first trigger.
... ... @@ -992,6 +992,7 @@
992 992  
993 993  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
994 994  
1032 +Controls the digital outputs DO1, DO2, and DO3
995 995  
996 996  * (% style="color:#037691" %)**AT Command**
997 997  
... ... @@ -1369,25 +1369,25 @@
1369 1369  
1370 1370  == 3.5 Integrating with ThingsEye.io ==
1371 1371  
1372 -The Things Stack applications can be integrated with ThingsEye.io. Once integrated, ThingsEye.io works as an MQTT client for The Things Stack MQTT broker, allowing it to subscribe to upstream traffic and publish downlink traffic.
1410 +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.
1373 1373  
1374 -=== 3.5.1 Configuring MQTT Connection Information with The Things Stack Sandbox ===
1412 +=== 3.5.1 Configuring The Things Stack ===
1375 1375  
1376 -We use The Things Stack Sandbox for demonstating the configuration but  other
1414 +We use The Things Stack Sandbox in this example:
1377 1377  
1378 -* In **The Things Stack Sandbox**, select your application under **Applications**.
1379 -* Select **MQTT** under **Integrations**.
1380 -* In the **Connection information **section, for **Username**, The Things Stack displays an auto-generated username. You can use it or provide a new one.
1381 -* For the **Password**, click the **Generate new API key** button to generate a password. You can see it by clicking on the **eye** button. The API key works as the password.
1416 +* In **The Things Stack Sandbox**, go to the **Application **for the LT-22222-L you added.
1417 +* Select **MQTT** under **Integrations** in the left menu.
1418 +* In the **Connection information **section, under **Connection credentials**, The Things Stack displays an auto-generated **username**. You can use it or provide a new one.
1419 +* Click the **Generate new API key** button to generate a password. You can view it by clicking on the **visibility toggle/eye** icon. The API key works as the password.
1382 1382  
1383 -NOTE. The username and  password (API key) you created here are required in the next section.
1421 +{{info}}
1422 +The username and  password (API key) you created here are required in the next section.
1423 +{{/info}}
1384 1384  
1385 1385  [[image:tts-mqtt-integration.png||height="625" width="1000"]]
1386 1386  
1387 1387  === 3.5.2 Configuring ThingsEye.io ===
1388 1388  
1389 -This section guides you on how to create an integration in ThingsEye to connect with The Things Stack MQTT server.
1390 -
1391 1391  * Login to your [[ThingsEye.io >>https://thingseye.io]]account.
1392 1392  * Under the **Integrations center**, click **Integrations**.
1393 1393  * Click the **Add integration** button (the button with the **+** symbol).
... ... @@ -1424,9 +1424,9 @@
1424 1424  **Downlink data converter (this is an optional step):**
1425 1425  
1426 1426  * Click the **Create new** button if it is not selected by default.
1427 -* Enter a suitable name for the downlink data converter in the **Name **text** **box or keep the default name
1465 +* Enter a suitable name for the downlink data converter in the **Name **text** **box or keep the default name.
1428 1428  * Click the **JavaScript** button.
1429 -* Paste the downlink decoder function into the text area (first, delete the default code). The demo downlink decoder function can be found here.
1467 +* Paste the downlink decoder function into the text area (first, delete the default code). The demo downlink decoder function can be found [[here>>https://raw.githubusercontent.com/ThingsEye-io/te-platform/refs/heads/main/Data%20Converters/The_Things_Network_MQTT_Downlink_Converter.js]].
1430 1430  * Click the **Next** button. You will be navigated to the **Connection** tab.
1431 1431  
1432 1432  [[image:thingseye-io-step-4.png||height="625" width="1000"]]
... ... @@ -1436,7 +1436,7 @@
1436 1436  
1437 1437  * Choose **Region** from the **Host type**.
1438 1438  * Enter the **cluster** of your **The Things Stack** in the **Region** textbox. You can find the cluster in the url (e.g., https:~/~/**eu1**.cloud.thethings.network/...).
1439 -* Enter the **Username** and **Password** of the MQTT integration in the **Credentials** section. The username and password can be found on the MQTT integration page of your The Things Stack account (see Configuring MQTT Connection information with The Things Stack Sandbox).
1477 +* Enter the **Username** and **Password** of the MQTT integration in the **Credentials** section. The **username **and **password **can be found on the MQTT integration page of your The Things Stack account (see Configuring The Things Stack).
1440 1440  * Click the **Check connection** button to test the connection. If the connection is successful, you will see the message saying **Connected**.
1441 1441  
1442 1442  [[image:message-1.png]]
... ... @@ -1453,9 +1453,9 @@
1453 1453  [[image:thingseye.io_integrationsCenter_integrations.png||height="686" width="1000"]]
1454 1454  
1455 1455  
1456 -**Viewing integration details**:
1494 +==== 3.5.2.1 Viewing integration details ====
1457 1457  
1458 -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.
1496 +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.
1459 1459  
1460 1460  [[image:integration-details.png||height="686" width="1000"]]
1461 1461  
... ... @@ -1462,29 +1462,30 @@
1462 1462  
1463 1463  If you want to edit the settings you have provided, click on the **Toggle edit mode** button. Once you have done click on the **Apply changes **button.
1464 1464  
1465 -Note: See also ThingsEye documentation.
1503 +{{info}}
1504 +See also ThingsEye documentation.
1505 +{{/info}}
1466 1466  
1507 +==== **3.5.2.2 Viewing events** ====
1467 1467  
1468 -**Viewing events:**
1509 +The **Events **tab displays all the uplink messages from the LT-22222-L.
1469 1469  
1470 -This tab  displays all the uplink messages from the LT-22222-L.
1471 -
1472 -* Click on the **Events **tab.
1473 1473  * Select **Debug **from the **Event type** dropdown.
1474 -* Select the** time frame** from the **time window**.
1512 +* Select the** time frame** from the **time window**.
1475 1475  
1476 -[insert image]
1514 +[[image:thingseye-events.png||height="686" width="1000"]]
1477 1477  
1478 -- To view the JSON payload of a message, click on the three dots (...) in the Message column of the desired message.
1479 1479  
1480 -[insert image]
1517 +* To view the JSON payload of a message, click on the three dots (...) in the Message column of the desired message.
1481 1481  
1519 +[[image:thingseye-json.png||width="1000"]]
1482 1482  
1483 -**Deleting the integration**:
1484 1484  
1485 -If you want to delete this integration, click the **Delete integratio**n button.
1522 +==== **3.5.2.3 Deleting an integration** ====
1486 1486  
1524 +If you want to delete an integration, click the **Delete integratio**n button on the Integrations page.
1487 1487  
1526 +
1488 1488  == 3.6 Interface Details ==
1489 1489  
1490 1490  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1495,7 +1495,7 @@
1495 1495  [[image:1653356991268-289.png]]
1496 1496  
1497 1497  
1498 -=== 3.6.2 Digital Input Ports: DI1/DI2 ( For LT-22222-L) ===
1537 +=== 3.6.2 Digital Input Ports: DI1/DI2 ===
1499 1499  
1500 1500  
1501 1501  (((
... ... @@ -1625,7 +1625,7 @@
1625 1625  [[image:image-20240219115718-1.png]]
1626 1626  
1627 1627  
1628 -=== 3.6.3 Digital Output Ports: DO1/DO2 /DO3 ===
1667 +=== 3.6.3 Digital Output Ports: DO1/DO2 ===
1629 1629  
1630 1630  
1631 1631  (% style="color:blue" %)**NPN output**(%%): GND or Float. The maximum voltage that can be applied to the output pin is 36V.
... ... @@ -1698,10 +1698,11 @@
1698 1698  
1699 1699  == 3.7 LEDs Indicators ==
1700 1700  
1740 +The table below lists the behavior of LED indicators for each port function.
1701 1701  
1702 1702  (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1703 1703  |(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1704 -|**PWR**|Always on if there is power
1744 +|**PWR**|Always on when there is power
1705 1705  |**TX**|(((
1706 1706  (((
1707 1707  Device boot: TX blinks 5 times.
... ... @@ -1708,7 +1708,7 @@
1708 1708  )))
1709 1709  
1710 1710  (((
1711 -Successful join network: TX ON for 5 seconds.
1751 +Successful network join: TX remains ON for 5 seconds.
1712 1712  )))
1713 1713  
1714 1714  (((
... ... @@ -1715,7 +1715,7 @@
1715 1715  Transmit a LoRa packet: TX blinks once
1716 1716  )))
1717 1717  )))
1718 -|**RX**|RX blinks once when receiving a packet.
1758 +|**RX**|RX blinks once when a packet is received.
1719 1719  |**DO1**|For LT-22222-L: ON when DO1 is low, OFF when DO1 is high
1720 1720  |**DO2**|For LT-22222-L: ON when DO2 is low, OFF when DO2 is high
1721 1721  |**DI1**|(((
... ... @@ -1727,20 +1727,22 @@
1727 1727  |**RO1**|For LT-22222-L: ON when RO1 is closed, OFF when RO1 is open
1728 1728  |**RO2**|For LT-22222-L: ON when RO2 is closed, OFF when RO2 is open
1729 1729  
1730 -= 4. Using AT Command =
1770 += 4. Using AT Commands =
1731 1731  
1732 -== 4.1 Connecting the LT-22222-L to a computer ==
1772 +The LT-22222-L supports programming using AT Commands.
1733 1733  
1774 +== 4.1 Connecting the LT-22222-L to a PC ==
1734 1734  
1735 1735  (((
1736 -The LT-22222-L supports programming using AT Commands. You can use a USB-to-TTL adapter along with a 3.5mm Program Cable to connect the LT-22222-L to a computer, as shown below.
1777 +You can use a USB-to-TTL adapter along with a 3.5mm Program Cable to connect the LT-22222-L to a PC, as shown below.
1778 +
1779 +[[image:usb-ttl-programming.png]]
1737 1737  )))
1738 1738  
1739 -[[image:1653358238933-385.png]]
1740 1740  
1741 1741  
1742 1742  (((
1743 -On the PC, the user needs to set the (% style="color:#4f81bd" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) to a baud rate of (% style="color:green" %)**9600**(%%) to access to access serial console of LT-22222-L. The AT commands are disabled by default, and a password (default:(% style="color:green" %)**123456**)(%%) must be entered to active them, as shown below:
1785 +On the PC, you need to set the (% style="color:#4f81bd" %)**serial tool **(%%)(such as [[PuTTY>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]] or [[SecureCRT>>https://www.vandyke.com/cgi-bin/releases.php?product=securecrt]]) to a baud rate of (% style="color:green" %)**9600**(%%) to access the serial console of LT-22222-L. Access to AT commands is disabled by default, and a password (default: (% style="color:green" %)**123456**)(%%) must be entered to enable AT command access, as shown below:
1744 1744  )))
1745 1745  
1746 1746  [[image:1653358355238-883.png]]
... ... @@ -1748,195 +1748,62 @@
1748 1748  
1749 1749  (((
1750 1750  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/]]
1751 -)))
1752 1752  
1753 -(((
1754 -The following table lists all the AT commands related to the LT-22222-L, except for those used for switching between modes.
1755 -
1756 -AT+<CMD>?        : Help on <CMD>
1794 +== 4.2 LT-22222-L related AT commands ==
1757 1757  )))
1758 1758  
1759 1759  (((
1760 -AT+<CMD>         : Run <CMD>
1761 -)))
1798 +The following is the list of all the AT commands related to the LT-22222-L, except for those used for switching between working modes.
1762 1762  
1763 -(((
1764 -AT+<CMD>=<value> : Set the value
1800 +* **##AT##+<CMD>?** : Help on <CMD>
1801 +* **##AT##+<CMD>** : Run <CMD>
1802 +* **##AT##+<CMD>=<value>** : Set the value
1803 +* **##AT##+<CMD>=?** : Get the value
1804 +* ##**ATZ**##: Trigger a reset of the MCU
1805 +* ##**AT+FDR**##: Reset Parameters to factory default, reserve keys 
1806 +* **##AT+DEUI##**: Get or set the Device EUI (DevEUI)
1807 +* **##AT+DADDR##**: Get or set the Device Address (DevAddr)
1808 +* **##AT+APPKEY##**: Get or set the Application Key (AppKey)
1809 +* ##**AT+NWKSKEY**##: Get or set the Network Session Key (NwkSKey)
1810 +* **##AT+APPSKEY##**: Get or set the Application Session Key (AppSKey)
1811 +* **##AT+APPEUI##**: Get or set the Application EUI (AppEUI)
1812 +* **##AT+ADR##**: Get or set the Adaptive Data Rate setting. (0: OFF, 1: ON)
1813 +* AT+TXP: Get or set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Specification)
1814 +* AT+DR:  Get or set the Data Rate. (0-7 corresponding to DR_X)  
1815 +* AT+DCS: Get or set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1816 +* AT+PNM: Get or set the public network mode. (0: off, 1: on)
1817 +* AT+RX2FQ: Get or set the Rx2 window frequency
1818 +* AT+RX2DR: Get or set the Rx2 window data rate (0-7 corresponding to DR_X)
1819 +* AT+RX1DL: Get or set the delay between the end of the Tx and the Rx Window 1 in ms
1820 +* AT+RX2DL: Get or set the delay between the end of the Tx and the Rx Window 2 in ms
1821 +* AT+JN1DL: Get or set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1822 +* AT+JN2DL: Get or set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1823 +* AT+NJM: Get or set the Network Join Mode. (0: ABP, 1: OTAA)
1824 +* AT+NWKID: Get or set the Network ID
1825 +* AT+FCU: Get or set the Frame Counter Uplink (FCntUp)
1826 +* AT+FCD: Get or set the Frame Counter Downlink (FCntDown)
1827 +* AT+CLASS: Get or set the Device Class
1828 +* AT+JOIN: Join network
1829 +* AT+NJS: Get OTAA Join Status
1830 +* AT+SENDB: Send hexadecimal data along with the application port
1831 +* AT+SEND: Send text data along with the application port
1832 +* AT+RECVB: Print last received data in binary format (with hexadecimal values)
1833 +* AT+RECV: Print last received data in raw format
1834 +* AT+VER: Get current image version and Frequency Band
1835 +* AT+CFM: Get or Set the confirmation mode (0-1)
1836 +* AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1837 +* AT+SNR: Get the SNR of the last received packet
1838 +* AT+RSSI: Get the RSSI of the last received packet
1839 +* AT+TDC: Get or set the application data transmission interval in ms
1840 +* AT+PORT: Get or set the application port
1841 +* AT+DISAT: Disable AT commands
1842 +* AT+PWORD: Set password, max 9 digits
1843 +* AT+CHS: Get or set the Frequency (Unit: Hz) for Single Channel Mode
1844 +* AT+CHE: Get or set eight channels mode, Only for US915, AU915, CN470
1845 +* AT+CFG: Print all settings
1765 1765  )))
1766 1766  
1767 -(((
1768 -AT+<CMD>=?       :  Get the value
1769 -)))
1770 1770  
1771 -(((
1772 -ATZ: Trig a reset of the MCU
1773 -)))
1774 -
1775 -(((
1776 -AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1777 -)))
1778 -
1779 -(((
1780 -AT+DEUI: Get or Set the Device EUI
1781 -)))
1782 -
1783 -(((
1784 -AT+DADDR: Get or Set the Device Address
1785 -)))
1786 -
1787 -(((
1788 -AT+APPKEY: Get or Set the Application Key
1789 -)))
1790 -
1791 -(((
1792 -AT+NWKSKEY: Get or Set the Network Session Key
1793 -)))
1794 -
1795 -(((
1796 -AT+APPSKEY:  Get or Set the Application Session Key
1797 -)))
1798 -
1799 -(((
1800 -AT+APPEUI:  Get or Set the Application EUI
1801 -)))
1802 -
1803 -(((
1804 -AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1805 -)))
1806 -
1807 -(((
1808 -AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1809 -)))
1810 -
1811 -(((
1812 -AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1813 -)))
1814 -
1815 -(((
1816 -AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1817 -)))
1818 -
1819 -(((
1820 -AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1821 -)))
1822 -
1823 -(((
1824 -AT+RX2FQ: Get or Set the Rx2 window frequency
1825 -)))
1826 -
1827 -(((
1828 -AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1829 -)))
1830 -
1831 -(((
1832 -AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1833 -)))
1834 -
1835 -(((
1836 -AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1837 -)))
1838 -
1839 -(((
1840 -AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1841 -)))
1842 -
1843 -(((
1844 -AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1845 -)))
1846 -
1847 -(((
1848 -AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1849 -)))
1850 -
1851 -(((
1852 -AT+NWKID: Get or Set the Network ID
1853 -)))
1854 -
1855 -(((
1856 -AT+FCU: Get or Set the Frame Counter Uplink
1857 -)))
1858 -
1859 -(((
1860 -AT+FCD: Get or Set the Frame Counter Downlink
1861 -)))
1862 -
1863 -(((
1864 -AT+CLASS: Get or Set the Device Class
1865 -)))
1866 -
1867 -(((
1868 -AT+JOIN: Join network
1869 -)))
1870 -
1871 -(((
1872 -AT+NJS: Get OTAA Join Status
1873 -)))
1874 -
1875 -(((
1876 -AT+SENDB: Send hexadecimal data along with the application port
1877 -)))
1878 -
1879 -(((
1880 -AT+SEND: Send text data along with the application port
1881 -)))
1882 -
1883 -(((
1884 -AT+RECVB: Print last received data in binary format (with hexadecimal values)
1885 -)))
1886 -
1887 -(((
1888 -AT+RECV: Print last received data in raw format
1889 -)))
1890 -
1891 -(((
1892 -AT+VER:  Get current image version and Frequency Band
1893 -)))
1894 -
1895 -(((
1896 -AT+CFM: Get or Set the confirmation mode (0-1)
1897 -)))
1898 -
1899 -(((
1900 -AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1901 -)))
1902 -
1903 -(((
1904 -AT+SNR: Get the SNR of the last received packet
1905 -)))
1906 -
1907 -(((
1908 -AT+RSSI: Get the RSSI of the last received packet
1909 -)))
1910 -
1911 -(((
1912 -AT+TDC: Get or set the application data transmission interval in ms
1913 -)))
1914 -
1915 -(((
1916 -AT+PORT: Get or set the application port
1917 -)))
1918 -
1919 -(((
1920 -AT+DISAT: Disable AT commands
1921 -)))
1922 -
1923 -(((
1924 -AT+PWORD: Set password, max 9 digits
1925 -)))
1926 -
1927 -(((
1928 -AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1929 -)))
1930 -
1931 -(((
1932 -AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1933 -)))
1934 -
1935 -(((
1936 -AT+CFG: Print all settings
1937 -)))
1938 -
1939 -
1940 1940  == 4.2 Common AT Command Sequence ==
1941 1941  
1942 1942  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1945,41 +1945,41 @@
1945 1945  
1946 1946  
1947 1947  (((
1948 -(% style="color:blue" %)**If device has not joined network yet:**
1857 +(% style="color:blue" %)**If the device has not yet joined the network:**
1949 1949  )))
1950 1950  )))
1951 1951  
1952 1952  (((
1953 -(% style="background-color:#dcdcdc" %)**123456**
1862 +(% style="background-color:#dcdcdc" %)##**123456 ~/~/Enter the password to enable AT commands access**##
1954 1954  )))
1955 1955  
1956 1956  (((
1957 -(% style="background-color:#dcdcdc" %)**AT+FDR**
1866 +(% style="background-color:#dcdcdc" %)##**AT+FDR ~/~/Reset parameters to factory default, Reserve keys**##
1958 1958  )))
1959 1959  
1960 1960  (((
1961 -(% style="background-color:#dcdcdc" %)**123456**
1870 +(% style="background-color:#dcdcdc" %)##**123456 ~/~/Enter the password to enable AT commands access**##
1962 1962  )))
1963 1963  
1964 1964  (((
1965 -(% style="background-color:#dcdcdc" %)**AT+NJM=0**
1874 +(% style="background-color:#dcdcdc" %)##**AT+NJM=0 ~/~/Set to ABP mode**##
1966 1966  )))
1967 1967  
1968 1968  (((
1969 -(% style="background-color:#dcdcdc" %)**ATZ**
1878 +(% style="background-color:#dcdcdc" %)##**ATZ ~/~/Reset MCU**##
1970 1970  )))
1971 1971  
1972 1972  
1973 1973  (((
1974 -(% style="color:blue" %)**If device already joined network:**
1883 +(% style="color:blue" %)**If the device has already joined the network:**
1975 1975  )))
1976 1976  
1977 1977  (((
1978 -(% style="background-color:#dcdcdc" %)**AT+NJM=0**
1887 +(% style="background-color:#dcdcdc" %)##**AT+NJM=0**##
1979 1979  )))
1980 1980  
1981 1981  (((
1982 -(% style="background-color:#dcdcdc" %)**ATZ**
1891 +(% style="background-color:#dcdcdc" %)##**ATZ**##
1983 1983  )))
1984 1984  
1985 1985  
... ... @@ -1989,20 +1989,20 @@
1989 1989  
1990 1990  
1991 1991  (((
1992 -(% style="background-color:#dcdcdc" %)**123456**(%%)  ~/~/ Enter Password to have AT access.
1901 +(% style="background-color:#dcdcdc" %)**123456**(%%)  ~/~/ Enter password to enable AT commands access
1993 1993  )))
1994 1994  )))
1995 1995  
1996 1996  (((
1997 -(% style="background-color:#dcdcdc" %)** AT+FDR**(%%)  ~/~/ Reset Parameters to Factory Default, Keys Reserve
1906 +(% style="background-color:#dcdcdc" %)** AT+FDR**(%%)  ~/~/ Reset parameters to Factory Default, Reserve keys
1998 1998  )))
1999 1999  
2000 2000  (((
2001 -(% style="background-color:#dcdcdc" %)** 123456**(%%)  ~/~/ Enter Password to have AT access.
1910 +(% style="background-color:#dcdcdc" %)** 123456**(%%)  ~/~/ Enter password to enable AT commands access
2002 2002  )))
2003 2003  
2004 2004  (((
2005 -(% style="background-color:#dcdcdc" %)** AT+CLASS=C**(%%)  ~/~/ Set to work in CLASS C
1914 +(% style="background-color:#dcdcdc" %)** AT+CLASS=C**(%%)  ~/~/ Set to CLASS C mode
2006 2006  )))
2007 2007  
2008 2008  (((
... ... @@ -2022,19 +2022,19 @@
2022 2022  )))
2023 2023  
2024 2024  (((
2025 -(% style="background-color:#dcdcdc" %)** AT+CHS=868400000**(%%)  ~/~/ Set transmit frequency to 868.4Mhz
1934 +(% style="background-color:#dcdcdc" %)** AT+CHS=868400000**(%%)  ~/~/ Set transmit frequency to 868.4 MHz
2026 2026  )))
2027 2027  
2028 2028  (((
2029 -(% style="background-color:#dcdcdc" %)** AT+RX2FQ=868400000**(%%)  ~/~/ Set RX2Frequency to 868.4Mhz (according to the result from server)
1938 +(% style="background-color:#dcdcdc" %)** AT+RX2FQ=868400000**(%%)  ~/~/ Set RX2 frequency to 868.4 MHz (according to the result from the server)
2030 2030  )))
2031 2031  
2032 2032  (((
2033 -(% style="background-color:#dcdcdc" %)** AT+RX2DR=5**(%%)** ** ~/~/ Set RX2DR to match the downlink DR from server. see below
1942 +(% style="background-color:#dcdcdc" %)** AT+RX2DR=5**(%%)** ** ~/~/ Set RX2 DR to match the downlink DR from the server. See below.
2034 2034  )))
2035 2035  
2036 2036  (((
2037 -(% style="background-color:#dcdcdc" %)** AT+DADDR=26 01 1A F1** (%%) ~/~/ Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1946 +(% style="background-color:#dcdcdc" %)** AT+DADDR=26 01 1A F1** (%%) ~/~/ Set Device Address. The Device Address can be found in the application on the LoRaWAN NS.
2038 2038  )))
2039 2039  
2040 2040  (((
... ... @@ -2048,14 +2048,14 @@
2048 2048  )))
2049 2049  
2050 2050  (((
2051 -**~1. Make sure the device is set to ABP mode in the IoT Server.**
1960 +**~1. Ensure that the device is set to ABP mode in the LoRaWAN Network Server.**
2052 2052  
2053 -**2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.**
1962 +**2. Verify that the LG01/02 gateway RX frequency matches the AT+CHS setting exactly.**
2054 2054  
2055 -**3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?
1964 +**3. Make sure the SF/bandwidth settings in the LG01/LG02 match the settings of AT+DR. Refer to [[this link>>url:http://www.dragino.com/downloads/index.php?
2056 2056  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
2057 2057  
2058 -**4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5.**
1967 +**4. The commands AT+RX2FQ and AT+RX2DR enable downlink functionality. To set the correct parameters, you can check the actual downlink parameters to be used as shown below. Here, RX2FQ should be set to 868400000 and RX2DR should be set to 5.**
2059 2059  )))
2060 2060  
2061 2061  (((
... ... @@ -2067,7 +2067,7 @@
2067 2067  
2068 2068  
2069 2069  (((
2070 -(% style="color:blue" %)**If sensor JOINED:**
1979 +(% style="color:blue" %)**If the sensor has JOINED:**
2071 2071  
2072 2072  (% style="background-color:#dcdcdc" %)**AT+CLASS=A**
2073 2073  
... ... @@ -2077,37 +2077,48 @@
2077 2077  
2078 2078  = 5. Case Study =
2079 2079  
2080 -== 5.1 Counting how many objects pass through the flow Line ==
1989 +== 5.1 Counting how many objects pass through the flow line ==
2081 2081  
1991 +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]]?
2082 2082  
2083 -Reference Link: [[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]]?
2084 2084  
2085 -
2086 2086  = 6. FAQ =
2087 2087  
2088 -== 6.1 How to upgrade the image? ==
1996 +This section contains some frequently asked questions, which can help you resolve common issues and find solutions quickly.
2089 2089  
2090 2090  
2091 -The LT-22222-L I/O Controller is shipped with a 3.5mm cable, which is used to upload an image to LT in order to:
1999 +== 6.1 How to update the firmware? ==
2092 2092  
2093 -* Support new features.
2094 -* Fix bugs.
2095 -* Change LoRaWAN bands.
2001 +Dragino frequently releases firmware updates for the LT-22222-L. Updating your LT-22222-L with the latest firmware version helps to:
2096 2096  
2097 -Below is the hardware connection setup for uploading an image to the LT:
2003 +* Support new features
2004 +* Fix bugs
2005 +* Change LoRaWAN frequency bands
2098 2098  
2099 -[[image:1653359603330-121.png]]
2007 +You will need the following things before proceeding:
2100 2100  
2009 +* 3.5mm programming cable (included with the LT-22222-L as an additional accessory)
2010 +* USB to TTL adapter
2011 +* Download and install the [[STM32 Flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]]. (replaced by STM32CubeProgrammer)
2012 +* Download the latest firmware image from [[LT-22222-L firmware image files>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACrbrDN0AqLHbBat0ViWx5Da/LT-22222-L/Firmware?dl=0&subfolder_nav_tracking=1]]. Check the file name of the firmware to find the correct region.
2101 2101  
2102 -(((
2103 -(% style="color:#0000ff" %)**Step 1**(%%)**:** Download the F[[lash Loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
2104 -(% style="color:#0000ff" %)**Step 2**(%%)**:** Download the [[LT Image files>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACrbrDN0AqLHbBat0ViWx5Da/LT-22222-L/Firmware?dl=0&subfolder_nav_tracking=1]].
2105 -(% style="color:#0000ff" %)**Step 3**(%%)**:** Open the Flash Loader and choose the correct COM port to update.
2106 -
2014 +{{info}}
2015 +As of this writing, the latest firmware version available for the LT-22222-L is v1.6.1.
2016 +{{/info}}
2107 2107  
2018 +Below is the hardware setup for uploading a firmware image to the LT-22222-L:
2019 +
2020 +[[image:usb-ttl-programming.png]]
2021 +
2022 +
2023 +
2024 +Start the STM32 Flash Loader and choose the correct COM port to update.
2025 +
2108 2108  (((
2027 +(((
2109 2109  (% style="color:blue" %)**For LT-22222-L**(%%):
2110 -Hold down the PRO button, then momentarily press the RST reset button. The (% style="color:red" %)**DO1 LED**(%%) will change from OFF to ON. When the (% style="color:red" %)**DO1 LED**(%%) is ON, it indicates that the device is in download mode.
2029 +
2030 +Hold down the **PRO** button, then briefly press the **RST** button. The **DO1** LED will change from OFF to ON. When the **DO1** LED is ON, it indicates that the device is in firmware download mode.
2111 2111  )))
2112 2112  
2113 2113  
... ... @@ -2122,7 +2122,7 @@
2122 2122  [[image:image-20220524104033-15.png]]
2123 2123  
2124 2124  
2125 -(% style="color:red" %)**Note**(%%): If you have lost the programming cable, you can make one from a 3.5mm cable. The pin mapping is as follows:
2045 +(% style="color:red" %)**Note**(%%): If you have lost the programming cable, you can make one from a 3.5 mm cable. The pin mapping is as follows:
2126 2126  
2127 2127  [[image:1653360054704-518.png||height="186" width="745"]]
2128 2128  
... ... @@ -2129,9 +2129,7 @@
2129 2129  
2130 2130  (((
2131 2131  (((
2132 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
2133 -
2134 -
2052 +== 6.2 How to change the LoRaWAN frequency band/region? ==
2135 2135  )))
2136 2136  )))
2137 2137  
... ... @@ -2142,20 +2142,18 @@
2142 2142  (((
2143 2143  
2144 2144  
2145 -== 6.3 How to set up LT to work with a Single Channel Gateway, such as LG01/LG02? ==
2146 -
2147 -
2063 +== 6.3 How to setup LT-22222-L to work with a Single Channel Gateway, such as LG01/LG02? ==
2148 2148  )))
2149 2149  
2150 2150  (((
2151 2151  (((
2152 -In this case, you need to set the LT-33222-L to work in ABP mode and transmit on only one frequency.
2068 +In this case, you need to set the LT-22222-L to work in ABP mode and transmit on only one frequency.
2153 2153  )))
2154 2154  )))
2155 2155  
2156 2156  (((
2157 2157  (((
2158 -Assume you have an LG02 working on the frequency 868400000. Below are the steps.
2074 +We assume you have an LG01/LG02 working on the frequency 868400000. Below are the steps.
2159 2159  
2160 2160  
2161 2161  )))
... ... @@ -2162,52 +2162,55 @@
2162 2162  )))
2163 2163  
2164 2164  (((
2165 -(% style="color:#0000ff" %)**Step 1**(%%):  Log in to The Things Stack SANDBOX, create an ABP device in the application, and input the Network Session key (NwkSKey), App session key (AppSKey) of the device.
2081 +(% style="color:#0000ff" %)**Step 1**(%%): Log in to The Things Stack Sandbox account and create an ABP device in the application. To do this, use the manual registration option as explained in section 3.2.2.2, //Adding a Device Manually//. Select //Activation by Personalization (ABP)// under Activation Mode. Enter the DevEUI exactly as shown on the registration information sticker, then generate the Device Address, Application Session Key (AppSKey), and Network Session Key (NwkSKey).
2166 2166  
2167 -
2083 +[[image:lt-22222-l-abp.png||height="686" width="1000"]]
2168 2168  )))
2169 2169  
2170 2170  (((
2171 -[[image:1653360231087-571.png||height="401" width="727"]]
2172 -
2173 2173  
2174 2174  )))
2175 2175  
2176 -(((
2177 -(% style="color:red" %)**Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.**
2178 -)))
2090 +{{warning}}
2091 +Ensure that the Device Address (DevAddr) and the two keys match between the LT-22222-L and The Things Stack. You can modify them either in The Things Stack or on the LT-22222-L to make them align. In The Things Stack, you can configure the NwkSKey and AppSKey on the settings page, but note that the Device Address is generated by The Things Stack.
2092 +{{/warning}}
2179 2179  
2180 2180  
2181 -
2182 2182  (((
2183 -(% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2096 +(% style="color:blue" %)**Step 2**(%%)**:  **(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)Run AT commands to configure the LT-22222-L to operate in single-frequency and ABP mode. The AT commands are as follows:
2184 2184  
2185 2185  
2186 2186  )))
2187 2187  
2188 2188  (((
2189 -(% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2102 +(% style="background-color:#dcdcdc" %)**123456** (%%) : Enter the password to enable AT access.
2190 2190  
2191 -(% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2104 +(% style="background-color:#dcdcdc" %)**AT+FDR**(%%) : Reset parameters to factory default, keeping keys reserved.
2192 2192  
2193 -(% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2106 +(% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) : Set to ABP mode.
2194 2194  
2195 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2108 +(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) : Disable the Adaptive Data Rate (ADR).
2196 2196  
2197 -(% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2110 +(% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) : Set Data Rate (Use AT+DR=3 for the 915 MHz band).
2198 2198  
2199 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2112 +(% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) : Set transmit interval to 60 seconds.
2200 2200  
2201 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2114 +(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4 MHz.
2202 2202  
2203 -(% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2116 +(% style="background-color:#dcdcdc" %)**AT+DADDR=xxxx**(%%) : Set the Device Address (DevAddr)
2204 2204  
2205 -(% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
2118 +(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:700; text-decoration:none; white-space:pre-wrap" %)**AT+APPKEY=xxxx**(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %): Get or set the Application Key (AppKey)
2119 +
2120 +(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)**AT+NWKSKEY=xxxx**: Get or set the Network Session Key (NwkSKey)
2121 +
2122 +(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)**AT+APPSKEY=xxxx**: Get or set the Application Session Key (AppSKey)
2123 +
2124 +(% style="background-color:#dcdcdc" %)**ATZ**        (%%) : Reset MCU.
2206 2206  )))
2207 2207  
2208 2208  
2209 2209  (((
2210 -As shown in below:
2129 +(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)The following figure shows the screenshot of the command set above, issued using a serial tool:
2211 2211  )))
2212 2212  
2213 2213  [[image:1653360498588-932.png||height="485" width="726"]]
... ... @@ -2215,156 +2215,137 @@
2215 2215  
2216 2216  == 6.4 How to change the uplink interval? ==
2217 2217  
2218 -
2219 2219  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/]]
2220 2220  
2221 2221  
2222 -== 6.5 Can I see the counting event in Serial? ==
2140 +== 6.5 Can I see the counting event in the serial output? ==
2223 2223  
2224 -
2225 2225  (((
2226 -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.
2143 +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.
2227 2227  
2228 2228  
2229 2229  == 6.6 Can I use point-to-point communication with LT-22222-L? ==
2230 2230  
2148 +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]].
2231 2231  
2232 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]. this is [[firmware>>https://github.com/dragino/LT-22222-L/releases]].
2233 -
2234 2234  
2235 2235  )))
2236 2236  
2237 2237  (((
2238 -== 6.7 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2154 +== 6.7 Why does the relay output default to an open relay after the LT-22222-L is powered off? ==
2239 2239  
2156 +* If the device is not properly shut down and is directly powered off.
2157 +* It will default to a power-off state.
2158 +* In modes 2 to 5, the DO/RO status and pulse count are saved to flash memory.
2159 +* After a restart, the status before the power failure will be read from flash.
2240 2240  
2241 -If the device is not shut down, but directly powered off.
2161 +== 6.8 Can I setup LT-22222-L as a NC (Normally Closed) relay? ==
2242 2242  
2243 -It will default that this is a power-off state.
2163 +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:
2244 2244  
2245 -In modes 2 to 5, DO RO status and pulse count are saved in flash.
2246 2246  
2247 -After restart, the status before power failure will be read from flash.
2248 -
2249 -
2250 -== 6.8 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2251 -
2252 -
2253 -LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
2254 -
2255 -
2256 2256  [[image:image-20221006170630-1.png||height="610" width="945"]]
2257 2257  
2258 2258  
2259 -== 6.9 Can LT22222-L save RO state? ==
2169 +== 6.9 Can the LT-22222-L save the RO state? ==
2260 2260  
2171 +To enable this feature, the firmware version must be 1.6.0 or higher.
2261 2261  
2262 -Firmware version needs to be no less than 1.6.0.
2263 2263  
2174 +== 6.10 Why does the LT-22222-L always report 15.585V when measuring the AVI? ==
2264 2264  
2265 -== 6.10 Why does the LT22222 always report 15.585V when measuring AVI? ==
2176 +It is likely that the GND is not connected during the measurement, or that the wire connected to the GND is loose.
2266 2266  
2267 2267  
2268 -It is likely that the GND is not connected during the measurement, or the wire connected to the GND is loose.
2179 += 7. Troubleshooting =
2269 2269  
2181 +This section provides some known troubleshooting tips.
2270 2270  
2271 -= 7. Trouble Shooting =
2183 +
2272 2272  )))
2273 2273  
2274 2274  (((
2275 2275  (((
2276 -== 7.1 Downlink doesn't work, how to solve it? ==
2277 -
2278 -
2188 +== 7.1 Downlink isn't working. How can I solve this? ==
2279 2279  )))
2280 2280  )))
2281 2281  
2282 2282  (((
2283 -Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
2193 +Please refer to this link for debugging instructions: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
2284 2284  )))
2285 2285  
2286 2286  (((
2287 2287  
2288 2288  
2289 -== 7.2 Have trouble to upload image. ==
2290 -
2291 -
2199 +== 7.2 Having trouble uploading an image? ==
2292 2292  )))
2293 2293  
2294 2294  (((
2295 -See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
2203 +Please refer to this link for troubleshooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
2296 2296  )))
2297 2297  
2298 2298  (((
2299 2299  
2300 2300  
2301 -== 7.3 Why I can't join TTN in US915 /AU915 bands? ==
2302 -
2303 -
2209 +== 7.3 Why can't I join TTN in the US915 /AU915 bands? ==
2304 2304  )))
2305 2305  
2306 2306  (((
2307 -It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
2213 +It might be related to the channel mapping. [[Please refer to this link for details.>>https://github.com/dragino/LT-22222-L/releases]]
2308 2308  )))
2309 2309  
2310 2310  
2311 -== 7.4 Why can LT22222 perform Uplink normally, but cannot receive Downlink? ==
2217 +== 7.4 Why can the LT-22222-L perform uplink normally, but cannot receive downlink? ==
2312 2312  
2219 +The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue.
2220 +Use this command to synchronize their counts: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
2313 2313  
2314 -The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue state.
2315 -Use this command to bring their counts back together: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
2316 2316  
2223 += 8. Ordering information =
2317 2317  
2318 -= 8. Order Info =
2319 -
2320 -
2321 2321  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
2322 2322  
2323 2323  (% style="color:#4f81bd" %)**XXX:**
2324 2324  
2325 -* (% style="color:red" %)**EU433**(%%):  LT with frequency bands EU433
2326 -* (% style="color:red" %)**EU868**(%%):  LT with frequency bands EU868
2327 -* (% style="color:red" %)**KR920**(%%):  LT with frequency bands KR920
2328 -* (% style="color:red" %)**CN470**(%%):  LT with frequency bands CN470
2329 -* (% style="color:red" %)**AS923**(%%):  LT with frequency bands AS923
2330 -* (% style="color:red" %)**AU915**(%%):  LT with frequency bands AU915
2331 -* (% style="color:red" %)**US915**(%%):  LT with frequency bands US915
2332 -* (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2333 -* (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2229 +* (% style="color:red" %)**EU433**(%%): LT with frequency bands EU433
2230 +* (% style="color:red" %)**EU868**(%%): LT with frequency bands EU868
2231 +* (% style="color:red" %)**KR920**(%%): LT with frequency bands KR920
2232 +* (% style="color:red" %)**CN470**(%%): LT with frequency bands CN470
2233 +* (% style="color:red" %)**AS923**(%%): LT with frequency bands AS923
2234 +* (% style="color:red" %)**AU915**(%%): LT with frequency bands AU915
2235 +* (% style="color:red" %)**US915**(%%): LT with frequency bands US915
2236 +* (% style="color:red" %)**IN865**(%%): LT with frequency bands IN865
2237 +* (% style="color:red" %)**CN779**(%%): LT with frequency bands CN779
2334 2334  
2335 -= 9. Packing Info =
2239 += 9. Package information =
2336 2336  
2241 +**Package includes**:
2337 2337  
2338 -**Package Includes**:
2243 +* 1 x LT-22222-L I/O Controller
2244 +* 1 x LoRa antenna matched to the frequency of the LT-22222-L
2245 +* 1 x bracket for DIN rail mounting
2246 +* 1 x 3.5 mm programming cable
2339 2339  
2340 -* LT-22222-L I/O Controller x 1
2341 -* Stick Antenna for LoRa RF part x 1
2342 -* Bracket for controller x1
2343 -* Program cable x 1
2344 -
2345 2345  **Dimension and weight**:
2346 2346  
2347 2347  * Device Size: 13.5 x 7 x 3 cm
2348 -* Device Weight: 105g
2251 +* Device Weight: 105 g
2349 2349  * Package Size / pcs : 14.5 x 8 x 5 cm
2350 -* Weight / pcs : 170g
2253 +* Weight / pcs : 170 g
2351 2351  
2352 2352  = 10. Support =
2353 2353  
2354 -
2355 2355  * (((
2356 -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.
2258 +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.
2357 2357  )))
2358 2358  * (((
2359 -Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[Support@dragino.cc>>mailto:Support@dragino.cc]]
2261 +Please provide as much information as possible regarding your inquiry (e.g., product models, a detailed description of the problem, steps to replicate it, etc.) and send an email to [[support@dragino.cc>>mailto:support@dragino.cc]]
2360 2360  
2361 -
2362 2362  
2363 2363  )))
2364 2364  
2365 2365  = 11. Reference​​​​​ =
2366 2366  
2367 -
2368 2368  * 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]]
2369 2369  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2370 2370  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
lt-22222-l-abp.png
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