Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 126.12 >
edited by Xiaoling
on 2023/06/19 16:04
To version < 138.1 >
edited by Dilisi S
on 2024/10/30 02:44
>
Change comment: changes done up to secsion 3.1

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LT-22222-L LoRa IO Controller User Manual
1 +LT-22222-L -- LoRa IO Controller User Manual
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.pradeeka
Content
... ... @@ -3,6 +3,10 @@
3 3  
4 4  
5 5  
6 +
7 +
8 +
9 +
6 6  **Table of Contents:**
7 7  
8 8  {{toc/}}
... ... @@ -15,36 +15,32 @@
15 15  
16 16  = 1.Introduction =
17 17  
18 -== 1.1 What is LT Series I/O Controller ==
22 +== 1.1 What is the LT-22222-L I/O Controller? ==
19 19  
20 20  (((
21 -
22 -
23 23  (((
24 -The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
25 -)))
26 -)))
26 +(% 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 Dragino (% style="color:blue" %)**LT-22222-L I/O Controller**(%%) is an advanced LoRaWAN device designed to provide seamless wireless long-range connectivity with various I/O options, including analog current and voltage inputs, digital inputs and outputs, and relay outputs.
27 27  
28 -(((
29 -The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
28 +The LT-22222-L I/O Controller simplifies and enhances I/O monitoring and controlling. It is ideal for professional applications in wireless sensor networks, including irrigation systems, smart metering, smart cities, building automation, and more. These controllers are designed for easy, cost-effective deployment using LoRa wireless technology.
30 30  )))
31 -
32 -(((
33 -The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
34 34  )))
35 35  
36 36  (((
37 -The use environment includes:
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.
38 38  )))
39 39  
40 40  (((
41 -1) If user's area has LoRaWAN service coverage, they can just install the I/O controller and configure it to connect the LoRaWAN provider via wireless.
37 +(% style="line-height:1.38; margin-top:16px; margin-bottom:16px" %)
38 +The LT Series I/O Controllers are designed for easy, low-cost installation on LoRaWAN networks.
42 42  )))
43 43  
44 44  (((
45 -2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
42 +(% style="line-height:1.38; margin-top:16px; margin-bottom:16px" %)
43 +(% 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" %)You can connect the LT-22222-L I/O Controller to a LoRaWAN network service provider in several ways:
46 46  
47 -
45 +* (% 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" %)If there is public LoRaWAN network coverage in the area where you plan to install the device (e.g., The Things Network), you can select a network and register the LT-22222-L I/O controller with it.
46 +* (% 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" %)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.
47 +* (% 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" %)Setup your own private LoRaWAN network.
48 48  )))
49 49  
50 50  (((
... ... @@ -53,164 +53,71 @@
53 53  
54 54  )))
55 55  
56 -== 1.2  Specifications ==
56 +== 1.2 Specifications ==
57 57  
58 -(((
59 -
60 -
61 61  (% style="color:#037691" %)**Hardware System:**
62 -)))
63 63  
64 -* (((
65 -STM32L072xxxx MCU
66 -)))
67 -* (((
68 -SX1276/78 Wireless Chip 
69 -)))
70 -* (((
71 -(((
72 -Power Consumption:
73 -)))
60 +* STM32L072xxxx MCU
61 +* SX1276/78 Wireless Chip 
62 +* Power Consumption:
63 +** Idle: 4mA@12v
64 +** 20dB Transmit: 34mA@12v
65 +* Operating Temperature: -40 ~~ 85 Degree, No Dew
74 74  
75 -* (((
76 -Idle: 4mA@12v
77 -)))
78 -* (((
79 -20dB Transmit: 34mA@12v
80 -)))
81 -)))
82 -
83 -(((
84 -
85 -
86 86  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
87 -)))
88 88  
89 -* (((
90 -2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
91 -)))
92 -* (((
93 -2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
94 -)))
95 -* (((
96 -2 x Relay Output (5A@250VAC / 30VDC)
97 -)))
98 -* (((
99 -2 x 0~~20mA Analog Input (res:0.01mA)
100 -)))
101 -* (((
102 -2 x 0~~30V Analog Input (res:0.01v)
103 -)))
104 -* (((
105 -Power Input 7~~ 24V DC. 
106 -)))
69 +* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
70 +* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
71 +* 2 x Relay Output (5A@250VAC / 30VDC)
72 +* 2 x 0~~20mA Analog Input (res:0.01mA)
73 +* 2 x 0~~30V Analog Input (res:0.01v)
74 +* Power Input 7~~ 24V DC. 
107 107  
108 -(((
109 -
110 -
111 111  (% style="color:#037691" %)**LoRa Spec:**
112 -)))
113 113  
114 -* (((
115 -(((
116 -Frequency Range:
117 -)))
78 +* Frequency Range:
79 +** Band 1 (HF): 862 ~~ 1020 Mhz
80 +** Band 2 (LF): 410 ~~ 528 Mhz
81 +* 168 dB maximum link budget.
82 +* +20 dBm - 100 mW constant RF output vs.
83 +* +14 dBm high efficiency PA.
84 +* Programmable bit rate up to 300 kbps.
85 +* High sensitivity: down to -148 dBm.
86 +* Bullet-proof front end: IIP3 = -12.5 dBm.
87 +* Excellent blocking immunity.
88 +* Low RX current of 10.3 mA, 200 nA register retention.
89 +* Fully integrated synthesizer with a resolution of 61 Hz.
90 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
91 +* Built-in bit synchronizer for clock recovery.
92 +* Preamble detection.
93 +* 127 dB Dynamic Range RSSI.
94 +* Automatic RF Sense and CAD with ultra-fast AFC.
95 +* Packet engine up to 256 bytes with CRC.
118 118  
119 -* (((
120 -Band 1 (HF): 862 ~~ 1020 Mhz
121 -)))
122 -* (((
123 -Band 2 (LF): 410 ~~ 528 Mhz
124 -)))
125 -)))
126 -* (((
127 -168 dB maximum link budget.
128 -)))
129 -* (((
130 -+20 dBm - 100 mW constant RF output vs.
131 -)))
132 -* (((
133 -+14 dBm high efficiency PA.
134 -)))
135 -* (((
136 -Programmable bit rate up to 300 kbps.
137 -)))
138 -* (((
139 -High sensitivity: down to -148 dBm.
140 -)))
141 -* (((
142 -Bullet-proof front end: IIP3 = -12.5 dBm.
143 -)))
144 -* (((
145 -Excellent blocking immunity.
146 -)))
147 -* (((
148 -Low RX current of 10.3 mA, 200 nA register retention.
149 -)))
150 -* (((
151 -Fully integrated synthesizer with a resolution of 61 Hz.
152 -)))
153 -* (((
154 -FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
155 -)))
156 -* (((
157 -Built-in bit synchronizer for clock recovery.
158 -)))
159 -* (((
160 -Preamble detection.
161 -)))
162 -* (((
163 -127 dB Dynamic Range RSSI.
164 -)))
165 -* (((
166 -Automatic RF Sense and CAD with ultra-fast AFC.
167 -)))
168 -* (((
169 -Packet engine up to 256 bytes with CRC.
170 -
171 -
172 -
173 -)))
174 -
175 175  == 1.3 Features ==
176 176  
177 -
178 178  * LoRaWAN Class A & Class C protocol
179 -
180 180  * Optional Customized LoRa Protocol
181 -
182 182  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
183 -
184 184  * AT Commands to change parameters
185 -
186 186  * Remote configure parameters via LoRa Downlink
187 -
188 188  * Firmware upgradable via program port
189 -
190 190  * Counting
191 191  
192 -== 1.4  Applications ==
107 +== 1.4 Applications ==
193 193  
194 -
195 195  * Smart Buildings & Home Automation
196 -
197 197  * Logistics and Supply Chain Management
198 -
199 199  * Smart Metering
200 -
201 201  * Smart Agriculture
202 -
203 203  * Smart Cities
204 -
205 205  * Smart Factory
206 206  
207 -
208 -
209 209  == 1.5 Hardware Variants ==
210 210  
211 211  
212 212  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
213 -|(% style="background-color:#d9e2f3; color:#0070c0; width:103px" %)**Model**|(% style="background-color:#d9e2f3; color:#0070c0; width:131px" %)**Photo**|(% style="background-color:#d9e2f3; color:#0070c0; width:266px" %)**Description**
120 +|(% 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**
214 214  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
215 215  (% style="text-align:center" %)
216 216  [[image:image-20230424115112-1.png||height="106" width="58"]]
... ... @@ -223,18 +223,16 @@
223 223  * 1 x Counting Port
224 224  )))
225 225  
226 -= 2. Power ON Device =
133 += 2. Powering ON the Device =
227 227  
135 +(% style="line-height:1.38" %)
136 +(% style="font-size: 11pt; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; white-space: pre-wrap; font-family: Arial, sans-serif; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; text-decoration: none" %)The LT-22222-L controller can be powered by a 7–24V DC power source.
228 228  
229 -(((
230 -The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
231 -)))
138 +* (% style="font-size: 11pt; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; white-space: pre-wrap; font-family: Arial, sans-serif; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; text-decoration: none" %)Connect VIN to Power Input V+ and GND to Power Input V- to power the LT-22222-L controller.
139 +* (% style="font-size: 11pt; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; white-space: pre-wrap; font-family: Arial, sans-serif; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; text-decoration: none" %)Connect the positive wire of the power supply to the VIN screw terminal and the negative wire to the GND screw terminal.
232 232  
233 -(((
234 -PWR will on when device is properly powered.
141 +(% style="font-size: 11pt; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-position: normal; white-space: pre-wrap; font-family: Arial, sans-serif; color: rgb(0, 0, 0); font-weight: 400; font-style: normal; text-decoration: none" %)The power indicator (PWR) LED will turn on when the device is properly powered.
235 235  
236 -
237 -)))
238 238  
239 239  [[image:1653297104069-180.png]]
240 240  
... ... @@ -241,15 +241,16 @@
241 241  
242 242  = 3. Operation Mode =
243 243  
244 -== 3.1 How it works? ==
149 +== 3.1 How does it work? ==
245 245  
246 -
247 247  (((
248 -The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on (% style="color:green" %)**TX LED**(%%) will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. (% style="color:green" %)**TX LED**(%%) will be on for 5 seconds after joined in network. When there is message from server, the RX LED will be on for 1 second. 
152 +The LT-22222-L is configured to operate in LoRaWAN Class C mode by default. It supports OTAA (Over-the-Air Activation), which is 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.
153 +
154 +For LT-22222-L, the LED will show the Join status: After power on (% style="color:green" %)**TX LED**(%%) will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. (% style="color:green" %)**TX LED**(%%) will be on for 5 seconds after joined in network. When there is message from server, the RX LED will be on for 1 second. 
249 249  )))
250 250  
251 251  (((
252 -In case user can't set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
158 +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.
253 253  )))
254 254  
255 255  
... ... @@ -294,7 +294,6 @@
294 294  [[image:1653298023685-319.png]]
295 295  
296 296  
297 -
298 298  (((
299 299  (% style="color:blue" %)**Step 2**(%%): Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
300 300  
... ... @@ -328,7 +328,7 @@
328 328  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default. (% style="display:none" %)
329 329  
330 330  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
331 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
236 +|(% 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**
332 332  |Value|(((
333 333  AVI1 voltage
334 334  )))|(((
... ... @@ -350,7 +350,7 @@
350 350  |RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
351 351  )))
352 352  
353 -* RO is for relay. ROx=1 : close，ROx=0 always open.
258 +* RO is for relay. ROx=1 : close, ROx=0 always open.
354 354  * DI is for digital input. DIx=1: high or float, DIx=0: low.
355 355  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
356 356  
... ... @@ -361,7 +361,7 @@
361 361  
362 362  **The value for the interface is:  **
363 363  
364 -AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
269 +AVI1 channel voltage is 0x04AB/1000=1195(DEC)/1000=1.195V
365 365  
366 366  AVI2 channel voltage is 0x04AC/1000=1.196V
367 367  
... ... @@ -389,8 +389,6 @@
389 389  ** DO1 is high in case there is load between DO1 and V+.
390 390  ** DO1 LED is off in both case
391 391  
392 -
393 -
394 394  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
395 395  
396 396  
... ... @@ -402,7 +402,7 @@
402 402  Total : 11 bytes payload
403 403  
404 404  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
405 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
308 +|(% 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**
406 406  |Value|COUNT1|COUNT2 |DIDORO*|(((
407 407  Reserve
408 408  )))|MOD
... ... @@ -415,7 +415,7 @@
415 415  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
416 416  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
417 417  
418 -RO is for relay. ROx=1 : close，ROx=0 always open.
321 +RO is for relay. ROx=1 : close , ROx=0 always open.
419 419  )))
420 420  
421 421  * FIRST: Indicate this is the first packet after join network.
... ... @@ -423,6 +423,8 @@
423 423  
424 424  (((
425 425  (% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
329 +
330 +
426 426  )))
427 427  
428 428  (((
... ... @@ -429,7 +429,6 @@
429 429  **To use counting mode, please run:**
430 430  )))
431 431  
432 -
433 433  (((
434 434  (% class="box infomessage" %)
435 435  (((
... ... @@ -468,7 +468,7 @@
468 468  **LT22222-L**: This mode the DI1 is used as a counting pin.
469 469  
470 470  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
471 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
375 +|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% 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**
472 472  |Value|COUNT1|(((
473 473  ACI1 Current
474 474  )))|(((
... ... @@ -483,7 +483,7 @@
483 483  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
484 484  )))
485 485  
486 -* RO is for relay. ROx=1 : close，ROx=0 always open.
390 +* RO is for relay. ROx=1 : close, ROx=0 always open.
487 487  * FIRST: Indicate this is the first packet after join network.
488 488  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
489 489  
... ... @@ -505,7 +505,6 @@
505 505  )))
506 506  )))
507 507  
508 -
509 509  (((
510 510  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
511 511  )))
... ... @@ -522,7 +522,7 @@
522 522  The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage **every 60s**, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1 counting can be used to measure a machine working hour.
523 523  
524 524  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
525 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
428 +|(% 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**
526 526  |Value|COUNT1|AVI1 Counting|DIDORO*|(((
527 527  Reserve
528 528  )))|MOD
... ... @@ -536,12 +536,14 @@
536 536  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
537 537  )))
538 538  
539 -* RO is for relay. ROx=1 : close，ROx=0 always open.
442 +* RO is for relay. ROx=1 : close, ROx=0 always open.
540 540  * FIRST: Indicate this is the first packet after join network.
541 541  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
542 542  
543 543  (((
544 544  (% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
448 +
449 +
545 545  )))
546 546  
547 547  (((
... ... @@ -549,6 +549,7 @@
549 549  )))
550 550  
551 551  (((
457 +(% class="box infomessage" %)
552 552  (((
553 553  **AT+MOD=4**
554 554  
... ... @@ -556,7 +556,6 @@
556 556  )))
557 557  )))
558 558  
559 -
560 560  (((
561 561  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
562 562  )))
... ... @@ -580,7 +580,7 @@
580 580  **LT22222-L**: This mode the DI1 is used as a counting pin.
581 581  
582 582  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
583 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
488 +|(% 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**
584 584  |Value|(((
585 585  AVI1 voltage
586 586  )))|(((
... ... @@ -599,7 +599,7 @@
599 599  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
600 600  )))
601 601  
602 -* RO is for relay. ROx=1 : close，ROx=0 always open.
507 +* RO is for relay. ROx=1 : close, ROx=0 always open.
603 603  * FIRST: Indicate this is the first packet after join network.
604 604  * (((
605 605  DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
... ... @@ -610,12 +610,9 @@
610 610  )))
611 611  
612 612  (((
613 -
614 -
615 615  **To use this mode, please run:**
616 616  )))
617 617  
618 -
619 619  (((
620 620  (% class="box infomessage" %)
621 621  (((
... ... @@ -625,7 +625,6 @@
625 625  )))
626 626  )))
627 627  
628 -
629 629  (((
630 630  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
631 631  )))
... ... @@ -720,7 +720,7 @@
720 720  MOD6 Payload : total 11 bytes payload
721 721  
722 722  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
723 -|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:69px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:69px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:109px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:49px" %)**6**|(% style="background-color:#d9e2f3; color:#0070c0; width:109px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**1**
624 +|(% 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**
724 724  |Value|(((
725 725  TRI_A FLAG
726 726  )))|(((
... ... @@ -1048,7 +1048,7 @@
1048 1048  01: Low,  00: High ,  11: No action
1049 1049  
1050 1050  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1051 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO3**
952 +|(% 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**
1052 1052  |02  01  00  11|Low|High|No Action
1053 1053  |02  00  11  01|High|No Action|Low
1054 1054  |02  11  01  00|No Action|Low|High
... ... @@ -1091,7 +1091,7 @@
1091 1091  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1092 1092  
1093 1093  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1094 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
995 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1095 1095  |0x01|DO1 set to low
1096 1096  |0x00|DO1 set to high
1097 1097  |0x11|DO1 NO Action
... ... @@ -1099,7 +1099,7 @@
1099 1099  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1100 1100  
1101 1101  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1102 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1003 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1103 1103  |0x01|DO2 set to low
1104 1104  |0x00|DO2 set to high
1105 1105  |0x11|DO2 NO Action
... ... @@ -1107,7 +1107,7 @@
1107 1107  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1108 1108  
1109 1109  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1110 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1011 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1111 1111  |0x01|DO3 set to low
1112 1112  |0x00|DO3 set to high
1113 1113  |0x11|DO3 NO Action
... ... @@ -1144,7 +1144,7 @@
1144 1144  
1145 1145  
1146 1146  
1147 -==== 3.4.2. 14 Relay ~-~- Control Relay Output RO1/RO2 ====
1048 +==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1148 1148  
1149 1149  
1150 1150  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1162,10 +1162,10 @@
1162 1162  )))
1163 1163  
1164 1164  (((
1165 -01: Close ,  00: Open , 11: No action
1066 +00: Close ,  01: Open , 11: No action
1166 1166  
1167 1167  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1168 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO2**
1069 +|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1169 1169  |03  00  11|Open|No Action
1170 1170  |03  01  11|Close|No Action
1171 1171  |03  11  00|No Action|Open
... ... @@ -1436,7 +1436,6 @@
1436 1436  [[image:1653356838789-523.png||height="337" width="740"]]
1437 1437  
1438 1438  
1439 -
1440 1440  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1441 1441  
1442 1442  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1589,8 +1589,11 @@
1589 1589  
1590 1590  [[image:image-20230616235145-1.png]]
1591 1591  
1492 +(% style="color:blue" %)**Example5**(%%): Connect to Open Colleactor
1592 1592  
1494 +[[image:image-20240219115718-1.png]]
1593 1593  
1496 +
1594 1594  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1595 1595  
1596 1596  
... ... @@ -1665,12 +1665,9 @@
1665 1665  == 3.7 LEDs Indicators ==
1666 1666  
1667 1667  
1668 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1669 -|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**LEDs**|(% style="background-color:#d9e2f3; color:#0070c0; width:470px" %)**Feature**
1571 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1572 +|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1670 1670  |**PWR**|Always on if there is power
1671 -|**SYS**|(((
1672 -After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
1673 -)))
1674 1674  |**TX**|(((
1675 1675  (((
1676 1676  Device boot: TX blinks 5 times.
... ... @@ -1685,20 +1685,16 @@
1685 1685  )))
1686 1686  )))
1687 1687  |**RX**|RX blinks once when receive a packet.
1688 -|**DO1**|
1689 -|**DO2**|
1690 -|**DO3**|
1691 -|**DI2**|(((
1692 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1588 +|**DO1**|For LT-22222-L: ON when DO1 is low, LOW when DO1 is high
1589 +|**DO2**|For LT-22222-L: ON when DO2 is low, LOW when DO2 is high
1590 +|**DI1**|(((
1591 +For LT-22222-L: ON when DI1 is high, LOW when DI1 is low
1693 1693  )))
1694 1694  |**DI2**|(((
1695 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1594 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1696 1696  )))
1697 -|**DI2**|(((
1698 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1699 -)))
1700 -|**RO1**|
1701 -|**RO2**|
1596 +|**RO1**|For LT-22222-L: ON when RO1 is closed, LOW when RO1 is open
1597 +|**RO2**|For LT-22222-L: ON when RO2 is closed, LOW when RO2 is open
1702 1702  
1703 1703  = 4. Use AT Command =
1704 1704  
... ... @@ -1709,10 +1709,6 @@
1709 1709  LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
1710 1710  )))
1711 1711  
1712 -(((
1713 -
1714 -)))
1715 -
1716 1716  [[image:1653358238933-385.png]]
1717 1717  
1718 1718  
... ... @@ -2031,8 +2031,6 @@
2031 2031  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
2032 2032  
2033 2033  **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.**
2034 -
2035 -
2036 2036  )))
2037 2037  
2038 2038  (((
... ... @@ -2039,9 +2039,6 @@
2039 2039  [[image:1653359097980-169.png||height="188" width="729"]]
2040 2040  )))
2041 2041  
2042 -(((
2043 -
2044 -)))
2045 2045  
2046 2046  === 4.2.3 Change to Class A ===
2047 2047  
... ... @@ -2049,8 +2049,9 @@
2049 2049  (((
2050 2050  (% style="color:blue" %)**If sensor JOINED:**
2051 2051  
2052 -(% style="background-color:#dcdcdc" %)**AT+CLASS=A
2053 -ATZ**
1939 +(% style="background-color:#dcdcdc" %)**AT+CLASS=A**
1940 +
1941 +(% style="background-color:#dcdcdc" %)**ATZ**
2054 2054  )))
2055 2055  
2056 2056  
... ... @@ -2103,7 +2103,6 @@
2103 2103  
2104 2104  (% style="color:red" %)**Notice**(%%): In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
2105 2105  
2106 -
2107 2107  [[image:1653360054704-518.png||height="186" width="745"]]
2108 2108  
2109 2109  
... ... @@ -2167,13 +2167,21 @@
2167 2167  
2168 2168  (((
2169 2169  (% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2057 +
2170 2170  (% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2059 +
2171 2171  (% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2061 +
2172 2172  (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2063 +
2173 2173  (% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2065 +
2174 2174  (% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2067 +
2175 2175  (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2069 +
2176 2176  (% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2071 +
2177 2177  (% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
2178 2178  )))
2179 2179  
... ... @@ -2185,7 +2185,7 @@
2185 2185  [[image:1653360498588-932.png||height="485" width="726"]]
2186 2186  
2187 2187  
2188 -== 6.4 How to change the uplink interval？ ==
2083 +== 6.4 How to change the uplink interval? ==
2189 2189  
2190 2190  
2191 2191  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/]]
... ... @@ -2234,6 +2234,12 @@
2234 2234  Firmware version needs to be no less than 1.6.0.
2235 2235  
2236 2236  
2132 +== 6.10 Why does the LT22222 always report 15.585V when measuring AVI? ==
2133 +
2134 +
2135 +It is likely that the GND is not connected during the measurement, or the wire connected to the GND is loose.
2136 +
2137 +
2237 2237  = 7. Trouble Shooting =
2238 2238  )))
2239 2239  
... ... @@ -2274,6 +2274,13 @@
2274 2274  )))
2275 2275  
2276 2276  
2178 +== 7.4 Why can LT22222 perform Uplink normally, but cannot receive Downlink? ==
2179 +
2180 +
2181 +The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue state.
2182 +Use this command to bring their counts back together: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
2183 +
2184 +
2277 2277  = 8. Order Info =
2278 2278  
2279 2279  
... ... @@ -2327,5 +2327,3 @@
2327 2327  * 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]]
2328 2328  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2329 2329  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2330 -
2331 -
image-20240219115718-1.png
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... ... @@ -1,0 +1,1 @@
1 +XWiki.Edwin
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