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<
From version < 126.13 >
edited by Xiaoling
on 2023/06/19 16:05
To version < 140.1 >
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on 2024/10/31 03:45
>
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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 +15,30 @@
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 +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 -(((
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.
42 -)))
36 +> The LT Series I/O Controllers are designed for easy, low-cost installation on LoRaWAN networks.
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.
39 +You can connect the LT-22222-L I/O Controller to a LoRaWAN network service provider in several ways:
46 46  
47 -
41 +* 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.
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 +* Setup your own private LoRaWAN network.
44 +
45 +> You can use the Dragino LG308 gateway to expand or create LoRaWAN coverage in your area.
48 48  )))
49 49  
50 50  (((
... ... @@ -53,164 +53,71 @@
53 53  
54 54  )))
55 55  
56 -== 1.2  Specifications ==
54 +== 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 -)))
58 +* STM32L072xxxx MCU
59 +* SX1276/78 Wireless Chip 
60 +* Power Consumption:
61 +** Idle: 4mA@12v
62 +** 20dB Transmit: 34mA@12v
63 +* 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 -)))
67 +* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
68 +* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
69 +* 2 x Relay Output (5A@250VAC / 30VDC)
70 +* 2 x 0~~20mA Analog Input (res:0.01mA)
71 +* 2 x 0~~30V Analog Input (res:0.01v)
72 +* 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 -)))
76 +* Frequency Range:
77 +** Band 1 (HF): 862 ~~ 1020 Mhz
78 +** Band 2 (LF): 410 ~~ 528 Mhz
79 +* 168 dB maximum link budget.
80 +* +20 dBm - 100 mW constant RF output vs.
81 +* +14 dBm high efficiency PA.
82 +* Programmable bit rate up to 300 kbps.
83 +* High sensitivity: down to -148 dBm.
84 +* Bullet-proof front end: IIP3 = -12.5 dBm.
85 +* Excellent blocking immunity.
86 +* Low RX current of 10.3 mA, 200 nA register retention.
87 +* Fully integrated synthesizer with a resolution of 61 Hz.
88 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
89 +* Built-in bit synchronizer for clock recovery.
90 +* Preamble detection.
91 +* 127 dB Dynamic Range RSSI.
92 +* Automatic RF Sense and CAD with ultra-fast AFC.
93 +* 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 ==
105 +== 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**
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**
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"]]
... ... @@ -223,41 +223,75 @@
223 223  * 1 x Counting Port
224 224  )))
225 225  
226 -= 2. Power ON Device =
131 += 2. Assembling the Device =
227 227  
133 +== 2.1 What is included in the package? ==
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 -)))
135 +The package includes the following items:
232 232  
233 -(((
234 -PWR will on when device is properly powered.
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
235 235  
236 -
237 -)))
142 +Attach the LoRaWAN antenna to the connector labeled **ANT** (located on the top right side of the device, next to the upper terminal block). Secure the antenna by tightening it clockwise.
238 238  
144 +== 2.2 Terminals ==
145 +
146 +Upper screw terminal block (from left to right):
147 +
148 +(% style="width:634px" %)
149 +|=(% style="width: 295px;" %)Terminal|=(% style="width: 338px;" %)Function
150 +|(% style="width:295px" %)GND|(% style="width:338px" %)Ground
151 +|(% style="width:295px" %)VIN|(% style="width:338px" %)Input Voltage
152 +|(% style="width:295px" %)AVI2|(% style="width:338px" %)Analog Voltage Input Terminal 2
153 +|(% style="width:295px" %)AVI1|(% style="width:338px" %)Analog Voltage Input Terminal 1
154 +|(% style="width:295px" %)ACI2|(% style="width:338px" %)Analog Current Input Terminal 2
155 +|(% style="width:295px" %)ACI1|(% style="width:338px" %)Analog Current Input Terminal 1
156 +
157 +Lower screw terminal block (from left to right):
158 +
159 +(% style="width:633px" %)
160 +|=(% style="width: 296px;" %)Terminal|=(% style="width: 334px;" %)Function
161 +|(% style="width:296px" %)RO1-2|(% style="width:334px" %)
162 +|(% style="width:296px" %)RO1-1|(% style="width:334px" %)
163 +|(% style="width:296px" %)RO2-2|(% style="width:334px" %)
164 +|(% style="width:296px" %)RO2-1|(% style="width:334px" %)
165 +|(% style="width:296px" %)DI2+|(% style="width:334px" %)
166 +|(% style="width:296px" %)DI2-|(% style="width:334px" %)
167 +|(% style="width:296px" %)DI1+|(% style="width:334px" %)
168 +|(% style="width:296px" %)DI1-|(% style="width:334px" %)
169 +|(% style="width:296px" %)DO2|(% style="width:334px" %)
170 +|(% style="width:296px" %)DO1|(% style="width:334px" %)
171 +
172 +== 2.3 Powering ==
173 +
174 +(% style="line-height:1.38" %)
175 +(% 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 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 screw terminal and the negative wire to the GND screw terminal. (% 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 power indicator (PWR) LED will turn on when the device is properly powered.
176 +
177 +
239 239  [[image:1653297104069-180.png]]
240 240  
241 241  
242 242  = 3. Operation Mode =
243 243  
244 -== 3.1 How it works? ==
183 +== 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. 
186 +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.
187 +
188 +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.
192 +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  
256 -== 3.2 Example to join LoRaWAN network ==
196 +== 3.2 Joining the LoRaWAN network server ==
257 257  
258 -
259 259  (((
260 -This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network structure, we use our LG308 as LoRaWAN gateway here. 
199 +The diagram below shows how the LT-22222-L connects to a typical LoRaWAN network.
261 261  
262 262  
263 263  )))
... ... @@ -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**
269 +|(% 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.
291 +* 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
302 +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**
341 +|(% 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.
354 +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.**
362 +
363 +
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**
408 +|(% 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.
423 +* 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**
461 +|(% 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.
475 +* 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.**
481 +
482 +
545 545  )))
546 546  
547 547  (((
... ... @@ -557,7 +557,6 @@
557 557  )))
558 558  )))
559 559  
560 -
561 561  (((
562 562  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
563 563  )))
... ... @@ -581,7 +581,7 @@
581 581  **LT22222-L**: This mode the DI1 is used as a counting pin.
582 582  
583 583  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
584 -|(% 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**
521 +|(% 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**
585 585  |Value|(((
586 586  AVI1 voltage
587 587  )))|(((
... ... @@ -600,7 +600,7 @@
600 600  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
601 601  )))
602 602  
603 -* RO is for relay. ROx=1 : close，ROx=0 always open.
540 +* RO is for relay. ROx=1 : close, ROx=0 always open.
604 604  * FIRST: Indicate this is the first packet after join network.
605 605  * (((
606 606  DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
... ... @@ -611,12 +611,9 @@
611 611  )))
612 612  
613 613  (((
614 -
615 -
616 616  **To use this mode, please run:**
617 617  )))
618 618  
619 -
620 620  (((
621 621  (% class="box infomessage" %)
622 622  (((
... ... @@ -626,7 +626,6 @@
626 626  )))
627 627  )))
628 628  
629 -
630 630  (((
631 631  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
632 632  )))
... ... @@ -721,7 +721,7 @@
721 721  MOD6 Payload : total 11 bytes payload
722 722  
723 723  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
724 -|(% 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**
657 +|(% 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**
725 725  |Value|(((
726 726  TRI_A FLAG
727 727  )))|(((
... ... @@ -1049,7 +1049,7 @@
1049 1049  01: Low,  00: High ,  11: No action
1050 1050  
1051 1051  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1052 -|(% 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**
985 +|(% 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**
1053 1053  |02  01  00  11|Low|High|No Action
1054 1054  |02  00  11  01|High|No Action|Low
1055 1055  |02  11  01  00|No Action|Low|High
... ... @@ -1092,7 +1092,7 @@
1092 1092  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1093 1093  
1094 1094  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1095 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1028 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1096 1096  |0x01|DO1 set to low
1097 1097  |0x00|DO1 set to high
1098 1098  |0x11|DO1 NO Action
... ... @@ -1100,7 +1100,7 @@
1100 1100  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1101 1101  
1102 1102  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1103 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1036 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1104 1104  |0x01|DO2 set to low
1105 1105  |0x00|DO2 set to high
1106 1106  |0x11|DO2 NO Action
... ... @@ -1108,7 +1108,7 @@
1108 1108  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1109 1109  
1110 1110  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1111 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1044 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1112 1112  |0x01|DO3 set to low
1113 1113  |0x00|DO3 set to high
1114 1114  |0x11|DO3 NO Action
... ... @@ -1145,7 +1145,7 @@
1145 1145  
1146 1146  
1147 1147  
1148 -==== 3.4.2. 14 Relay ~-~- Control Relay Output RO1/RO2 ====
1081 +==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1149 1149  
1150 1150  
1151 1151  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1163,10 +1163,10 @@
1163 1163  )))
1164 1164  
1165 1165  (((
1166 -01: Close ,  00: Open , 11: No action
1099 +00: Close ,  01: Open , 11: No action
1167 1167  
1168 1168  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1169 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO2**
1102 +|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1170 1170  |03  00  11|Open|No Action
1171 1171  |03  01  11|Close|No Action
1172 1172  |03  11  00|No Action|Open
... ... @@ -1437,7 +1437,6 @@
1437 1437  [[image:1653356838789-523.png||height="337" width="740"]]
1438 1438  
1439 1439  
1440 -
1441 1441  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1442 1442  
1443 1443  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1590,8 +1590,11 @@
1590 1590  
1591 1591  [[image:image-20230616235145-1.png]]
1592 1592  
1525 +(% style="color:blue" %)**Example5**(%%): Connect to Open Colleactor
1593 1593  
1527 +[[image:image-20240219115718-1.png]]
1594 1594  
1529 +
1595 1595  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1596 1596  
1597 1597  
... ... @@ -1666,12 +1666,9 @@
1666 1666  == 3.7 LEDs Indicators ==
1667 1667  
1668 1668  
1669 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1670 -|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**LEDs**|(% style="background-color:#d9e2f3; color:#0070c0; width:470px" %)**Feature**
1604 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1605 +|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1671 1671  |**PWR**|Always on if there is power
1672 -|**SYS**|(((
1673 -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.
1674 -)))
1675 1675  |**TX**|(((
1676 1676  (((
1677 1677  Device boot: TX blinks 5 times.
... ... @@ -1686,20 +1686,16 @@
1686 1686  )))
1687 1687  )))
1688 1688  |**RX**|RX blinks once when receive a packet.
1689 -|**DO1**|
1690 -|**DO2**|
1691 -|**DO3**|
1692 -|**DI2**|(((
1693 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1621 +|**DO1**|For LT-22222-L: ON when DO1 is low, LOW when DO1 is high
1622 +|**DO2**|For LT-22222-L: ON when DO2 is low, LOW when DO2 is high
1623 +|**DI1**|(((
1624 +For LT-22222-L: ON when DI1 is high, LOW when DI1 is low
1694 1694  )))
1695 1695  |**DI2**|(((
1696 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1627 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1697 1697  )))
1698 -|**DI2**|(((
1699 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1700 -)))
1701 -|**RO1**|
1702 -|**RO2**|
1629 +|**RO1**|For LT-22222-L: ON when RO1 is closed, LOW when RO1 is open
1630 +|**RO2**|For LT-22222-L: ON when RO2 is closed, LOW when RO2 is open
1703 1703  
1704 1704  = 4. Use AT Command =
1705 1705  
... ... @@ -1710,10 +1710,6 @@
1710 1710  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.
1711 1711  )))
1712 1712  
1713 -(((
1714 -
1715 -)))
1716 -
1717 1717  [[image:1653358238933-385.png]]
1718 1718  
1719 1719  
... ... @@ -2032,8 +2032,6 @@
2032 2032  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
2033 2033  
2034 2034  **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.**
2035 -
2036 -
2037 2037  )))
2038 2038  
2039 2039  (((
... ... @@ -2040,9 +2040,6 @@
2040 2040  [[image:1653359097980-169.png||height="188" width="729"]]
2041 2041  )))
2042 2042  
2043 -(((
2044 -
2045 -)))
2046 2046  
2047 2047  === 4.2.3 Change to Class A ===
2048 2048  
... ... @@ -2050,8 +2050,9 @@
2050 2050  (((
2051 2051  (% style="color:blue" %)**If sensor JOINED:**
2052 2052  
2053 -(% style="background-color:#dcdcdc" %)**AT+CLASS=A
2054 -ATZ**
1972 +(% style="background-color:#dcdcdc" %)**AT+CLASS=A**
1973 +
1974 +(% style="background-color:#dcdcdc" %)**ATZ**
2055 2055  )))
2056 2056  
2057 2057  
... ... @@ -2104,7 +2104,6 @@
2104 2104  
2105 2105  (% 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:
2106 2106  
2107 -
2108 2108  [[image:1653360054704-518.png||height="186" width="745"]]
2109 2109  
2110 2110  
... ... @@ -2168,13 +2168,21 @@
2168 2168  
2169 2169  (((
2170 2170  (% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2090 +
2171 2171  (% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2092 +
2172 2172  (% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2094 +
2173 2173  (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2096 +
2174 2174  (% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2098 +
2175 2175  (% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2100 +
2176 2176  (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2102 +
2177 2177  (% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2104 +
2178 2178  (% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
2179 2179  )))
2180 2180  
... ... @@ -2186,7 +2186,7 @@
2186 2186  [[image:1653360498588-932.png||height="485" width="726"]]
2187 2187  
2188 2188  
2189 -== 6.4 How to change the uplink interval？ ==
2116 +== 6.4 How to change the uplink interval? ==
2190 2190  
2191 2191  
2192 2192  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/]]
... ... @@ -2235,6 +2235,12 @@
2235 2235  Firmware version needs to be no less than 1.6.0.
2236 2236  
2237 2237  
2165 +== 6.10 Why does the LT22222 always report 15.585V when measuring AVI? ==
2166 +
2167 +
2168 +It is likely that the GND is not connected during the measurement, or the wire connected to the GND is loose.
2169 +
2170 +
2238 2238  = 7. Trouble Shooting =
2239 2239  )))
2240 2240  
... ... @@ -2275,6 +2275,13 @@
2275 2275  )))
2276 2276  
2277 2277  
2211 +== 7.4 Why can LT22222 perform Uplink normally, but cannot receive Downlink? ==
2212 +
2213 +
2214 +The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue state.
2215 +Use this command to bring their counts back together: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
2216 +
2217 +
2278 2278  = 8. Order Info =
2279 2279  
2280 2280  
... ... @@ -2328,5 +2328,3 @@
2328 2328  * 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]]
2329 2329  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2330 2330  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2331 -
2332 -
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