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Summary

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Title
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1 -LT-22222-L -- LoRa IO Controller User Manual
1 +LT-22222-L LoRa IO Controller User Manual
Author
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1 -XWiki.pradeeka
1 +XWiki.Xiaoling
Content
... ... @@ -3,10 +3,6 @@
3 3  
4 4  
5 5  
6 -
7 -
8 -
9 -
10 10  **Table of Contents:**
11 11  
12 12  {{toc/}}
... ... @@ -19,30 +19,36 @@
19 19  
20 20  = 1.Introduction =
21 21  
22 -== 1.1 What is the LT-22222-L I/O Controller? ==
18 +== 1.1 What is LT Series I/O Controller ==
23 23  
24 24  (((
25 -(((
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.
21 +
27 27  
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.
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.
29 29  )))
30 30  )))
31 31  
32 32  (((
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.
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.
34 34  )))
35 35  
36 -> The LT Series I/O Controllers are designed for easy, low-cost installation on LoRaWAN networks.
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 +)))
37 37  
38 38  (((
39 -You can connect the LT-22222-L I/O Controller to a LoRaWAN network service provider in several ways:
37 +The use environment includes:
38 +)))
40 40  
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.
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 +)))
44 44  
45 -> You can use the Dragino LG308 gateway to expand or create LoRaWAN coverage in your area.
44 +(((
45 +2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
46 +
47 +
46 46  )))
47 47  
48 48  (((
... ... @@ -53,69 +53,162 @@
53 53  
54 54  == 1.2 Specifications ==
55 55  
58 +(((
59 +
60 +
56 56  (% style="color:#037691" %)**Hardware System:**
62 +)))
57 57  
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
64 +* (((
65 +STM32L072xxxx MCU
66 +)))
67 +* (((
68 +SX1276/78 Wireless Chip 
69 +)))
70 +* (((
71 +(((
72 +Power Consumption:
73 +)))
64 64  
75 +* (((
76 +Idle: 4mA@12v
77 +)))
78 +* (((
79 +20dB Transmit: 34mA@12v
80 +)))
81 +)))
82 +
83 +(((
84 +
85 +
65 65  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
87 +)))
66 66  
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. 
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 +)))
73 73  
108 +(((
109 +
110 +
74 74  (% style="color:#037691" %)**LoRa Spec:**
112 +)))
75 75  
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.
114 +* (((
115 +(((
116 +Frequency Range:
117 +)))
94 94  
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 +
95 95  == 1.3 Features ==
96 96  
177 +
97 97  * LoRaWAN Class A & Class C protocol
179 +
98 98  * Optional Customized LoRa Protocol
181 +
99 99  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
183 +
100 100  * AT Commands to change parameters
185 +
101 101  * Remote configure parameters via LoRa Downlink
187 +
102 102  * Firmware upgradable via program port
189 +
103 103  * Counting
104 104  
192 +
105 105  == 1.4 Applications ==
106 106  
195 +
107 107  * Smart Buildings & Home Automation
197 +
108 108  * Logistics and Supply Chain Management
199 +
109 109  * Smart Metering
201 +
110 110  * Smart Agriculture
203 +
111 111  * Smart Cities
205 +
112 112  * Smart Factory
113 113  
208 +
114 114  == 1.5 Hardware Variants ==
115 115  
116 116  
117 117  (% 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**
213 +|(% 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**
119 119  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
120 120  (% style="text-align:center" %)
121 121  [[image:image-20230424115112-1.png||height="106" width="58"]]
... ... @@ -128,75 +128,42 @@
128 128  * 1 x Counting Port
129 129  )))
130 130  
131 -= 2. Assembling the Device =
132 132  
133 -== 2.1 What is included in the package? ==
227 += 2. Power ON Device =
134 134  
135 -The package includes the following items:
136 136  
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
230 +(((
231 +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.
232 +)))
141 141  
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.
234 +(((
235 +PWR will on when device is properly powered.
143 143  
144 -== 2.2 Terminals ==
237 +
238 +)))
145 145  
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 -
178 178  [[image:1653297104069-180.png]]
179 179  
180 180  
181 181  = 3. Operation Mode =
182 182  
183 -== 3.1 How does it work? ==
245 +== 3.1 How it works? ==
184 184  
185 -(((
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.
187 187  
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. 
248 +(((
249 +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. 
189 189  )))
190 190  
191 191  (((
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 +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.
193 193  )))
194 194  
195 195  
196 -== 3.2 Joining the LoRaWAN network server ==
257 +== 3.2 Example to join LoRaWAN network ==
197 197  
259 +
198 198  (((
199 -The diagram below shows how the LT-22222-L connects to a typical LoRaWAN network.
261 +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. 
200 200  
201 201  
202 202  )))
... ... @@ -259,6 +259,7 @@
259 259  
260 260  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
261 261  
324 +
262 262  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
263 263  
264 264  
... ... @@ -266,7 +266,7 @@
266 266  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default. (% style="display:none" %)
267 267  
268 268  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
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 +|(% 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**
270 270  |Value|(((
271 271  AVI1 voltage
272 272  )))|(((
... ... @@ -327,6 +327,7 @@
327 327  ** DO1 is high in case there is load between DO1 and V+.
328 328  ** DO1 LED is off in both case
329 329  
393 +
330 330  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
331 331  
332 332  
... ... @@ -338,7 +338,7 @@
338 338  Total : 11 bytes payload
339 339  
340 340  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
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**
405 +|(% 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**
342 342  |Value|COUNT1|COUNT2 |DIDORO*|(((
343 343  Reserve
344 344  )))|MOD
... ... @@ -405,7 +405,7 @@
405 405  **LT22222-L**: This mode the DI1 is used as a counting pin.
406 406  
407 407  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
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 +|(% 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**
409 409  |Value|COUNT1|(((
410 410  ACI1 Current
411 411  )))|(((
... ... @@ -458,7 +458,7 @@
458 458  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.
459 459  
460 460  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
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**
525 +|(% 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**
462 462  |Value|COUNT1|AVI1 Counting|DIDORO*|(((
463 463  Reserve
464 464  )))|MOD
... ... @@ -518,7 +518,7 @@
518 518  **LT22222-L**: This mode the DI1 is used as a counting pin.
519 519  
520 520  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
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 +|(% 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**
522 522  |Value|(((
523 523  AVI1 voltage
524 524  )))|(((
... ... @@ -654,7 +654,7 @@
654 654  MOD6 Payload : total 11 bytes payload
655 655  
656 656  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
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**
721 +|(% 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**
658 658  |Value|(((
659 659  TRI_A FLAG
660 660  )))|(((
... ... @@ -773,6 +773,7 @@
773 773  
774 774  * (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
775 775  
840 +
776 776  === 3.4.1 Common Commands ===
777 777  
778 778  
... ... @@ -982,7 +982,7 @@
982 982  01: Low,  00: High ,  11: No action
983 983  
984 984  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
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**
1050 +|(% 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**
986 986  |02  01  00  11|Low|High|No Action
987 987  |02  00  11  01|High|No Action|Low
988 988  |02  11  01  00|No Action|Low|High
... ... @@ -1025,7 +1025,7 @@
1025 1025  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1026 1026  
1027 1027  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1028 -|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1093 +|(% style="background-color:#4F81BD;color:white" %)**Second Byte**|(% style="background-color:#4F81BD;color:white" %)**Status**
1029 1029  |0x01|DO1 set to low
1030 1030  |0x00|DO1 set to high
1031 1031  |0x11|DO1 NO Action
... ... @@ -1033,7 +1033,7 @@
1033 1033  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1034 1034  
1035 1035  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1036 -|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1101 +|(% style="background-color:#4F81BD;color:white" %)**Second Byte**|(% style="background-color:#4F81BD;color:white" %)**Status**
1037 1037  |0x01|DO2 set to low
1038 1038  |0x00|DO2 set to high
1039 1039  |0x11|DO2 NO Action
... ... @@ -1041,7 +1041,7 @@
1041 1041  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1042 1042  
1043 1043  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1044 -|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1109 +|(% style="background-color:#4F81BD;color:white" %)**Second Byte**|(% style="background-color:#4F81BD;color:white" %)**Status**
1045 1045  |0x01|DO3 set to low
1046 1046  |0x00|DO3 set to high
1047 1047  |0x11|DO3 NO Action
... ... @@ -1096,10 +1096,10 @@
1096 1096  )))
1097 1097  
1098 1098  (((
1099 -00: Close ,  01: Open , 11: No action
1164 +01: Close ,  00: Open , 11: No action
1100 1100  
1101 1101  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1102 -|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1167 +|(% style="background-color:#4F81BD;color:white" %)**Downlink Code**|(% style="background-color:#4F81BD;color:white" %)**RO1**|(% style="background-color:#4F81BD;color:white" %)**RO2**
1103 1103  |03  00  11|Open|No Action
1104 1104  |03  01  11|Close|No Action
1105 1105  |03  11  00|No Action|Open
... ... @@ -1522,11 +1522,7 @@
1522 1522  
1523 1523  [[image:image-20230616235145-1.png]]
1524 1524  
1525 -(% style="color:blue" %)**Example5**(%%): Connect to Open Colleactor
1526 1526  
1527 -[[image:image-20240219115718-1.png]]
1528 -
1529 -
1530 1530  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1531 1531  
1532 1532  
... ... @@ -1601,9 +1601,12 @@
1601 1601  == 3.7 LEDs Indicators ==
1602 1602  
1603 1603  
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**
1665 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1666 +|(% style="background-color:#4F81BD;color:white; width:50px" %)**LEDs**|(% style="background-color:#4F81BD;color:white; width:470px" %)**Feature**
1606 1606  |**PWR**|Always on if there is power
1668 +|**SYS**|(((
1669 +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.
1670 +)))
1607 1607  |**TX**|(((
1608 1608  (((
1609 1609  Device boot: TX blinks 5 times.
... ... @@ -1618,17 +1618,22 @@
1618 1618  )))
1619 1619  )))
1620 1620  |**RX**|RX blinks once when receive a packet.
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
1685 +|**DO1**|
1686 +|**DO2**|
1687 +|**DO3**|
1688 +|**DI2**|(((
1689 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1625 1625  )))
1626 1626  |**DI2**|(((
1627 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1692 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1628 1628  )))
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
1694 +|**DI2**|(((
1695 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1696 +)))
1697 +|**RO1**|
1698 +|**RO2**|
1631 1631  
1700 +
1632 1632  = 4. Use AT Command =
1633 1633  
1634 1634  == 4.1 Access AT Command ==
... ... @@ -1638,6 +1638,10 @@
1638 1638  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.
1639 1639  )))
1640 1640  
1710 +(((
1711 +
1712 +)))
1713 +
1641 1641  [[image:1653358238933-385.png]]
1642 1642  
1643 1643  
... ... @@ -2232,6 +2232,7 @@
2232 2232  * (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2233 2233  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2234 2234  
2308 +
2235 2235  = 9. Packing Info =
2236 2236  
2237 2237  
... ... @@ -2249,6 +2249,7 @@
2249 2249  * Package Size / pcs : 14.5 x 8 x 5 cm
2250 2250  * Weight / pcs : 170g
2251 2251  
2326 +
2252 2252  = 10. Support =
2253 2253  
2254 2254  
... ... @@ -2268,3 +2268,5 @@
2268 2268  * 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]]
2269 2269  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2270 2270  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2346 +
2347 +
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