Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 130.2 >
edited by Xiaoling
on 2024/02/19 14:44
To version < 138.1 >
edited by Dilisi S
on 2024/10/30 02:44
>
Change comment: changes done up to secsion 3.1

Summary

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Author
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1 -XWiki.Xiaoling
1 +XWiki.pradeeka
Content
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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  (((
... ... @@ -55,153 +55,62 @@
55 55  
56 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  
192 192  == 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  
207 207  == 1.5 Hardware Variants ==
... ... @@ -221,18 +221,16 @@
221 221  * 1 x Counting Port
222 222  )))
223 223  
224 -= 2. Power ON Device =
133 += 2. Powering ON the Device =
225 225  
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.
226 226  
227 -(((
228 -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.
229 -)))
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.
230 230  
231 -(((
232 -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.
233 233  
234 -
235 -)))
236 236  
237 237  [[image:1653297104069-180.png]]
238 238  
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239 239  
240 240  = 3. Operation Mode =
241 241  
242 -== 3.1 How it works? ==
149 +== 3.1 How does it work? ==
243 243  
244 -
245 245  (((
246 -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. 
247 247  )))
248 248  
249 249  (((
250 -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.
251 251  )))
252 252  
253 253  
... ... @@ -1155,7 +1155,7 @@
1155 1155  )))
1156 1156  
1157 1157  (((
1158 -01: Close ,  00: Open , 11: No action
1066 +00: Close ,  01: Open , 11: No action
1159 1159  
1160 1160  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1161 1161  |(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
... ... @@ -1586,7 +1586,6 @@
1586 1586  [[image:image-20240219115718-1.png]]
1587 1587  
1588 1588  
1589 -
1590 1590  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1591 1591  
1592 1592  
... ... @@ -1661,12 +1661,9 @@
1661 1661  == 3.7 LEDs Indicators ==
1662 1662  
1663 1663  
1664 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1665 -|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; 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**
1666 1666  |**PWR**|Always on if there is power
1667 -|**SYS**|(((
1668 -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.
1669 -)))
1670 1670  |**TX**|(((
1671 1671  (((
1672 1672  Device boot: TX blinks 5 times.
... ... @@ -1681,20 +1681,16 @@
1681 1681  )))
1682 1682  )))
1683 1683  |**RX**|RX blinks once when receive a packet.
1684 -|**DO1**|
1685 -|**DO2**|
1686 -|**DO3**|
1687 -|**DI2**|(((
1688 -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
1689 1689  )))
1690 1690  |**DI2**|(((
1691 -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
1692 1692  )))
1693 -|**DI2**|(((
1694 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1695 -)))
1696 -|**RO1**|
1697 -|**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
1698 1698  
1699 1699  = 4. Use AT Command =
1700 1700  
... ... @@ -1705,10 +1705,6 @@
1705 1705  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.
1706 1706  )))
1707 1707  
1708 -(((
1709 -
1710 -)))
1711 -
1712 1712  [[image:1653358238933-385.png]]
1713 1713  
1714 1714  

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