Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 132.2 >
edited by Xiaoling
on 2024/03/05 08:51
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
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.pradeeka
Content
... ... @@ -19,36 +19,32 @@
19 19  
20 20  = 1.Introduction =
21 21  
22 -== 1.1 What is LT Series I/O Controller ==
22 +== 1.1 What is the LT-22222-L I/O Controller? ==
23 23  
24 24  (((
25 -
26 -
27 27  (((
28 -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 -)))
30 -)))
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.
31 31  
32 -(((
33 -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.
34 34  )))
35 -
36 -(((
37 -The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
38 38  )))
39 39  
40 40  (((
41 -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.
42 42  )))
43 43  
44 44  (((
45 -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.
46 46  )))
47 47  
48 48  (((
49 -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:
50 50  
51 -
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.
52 52  )))
53 53  
54 54  (((
... ... @@ -59,153 +59,62 @@
59 59  
60 60  == 1.2 Specifications ==
61 61  
62 -(((
63 -
64 -
65 65  (% style="color:#037691" %)**Hardware System:**
66 -)))
67 67  
68 -* (((
69 -STM32L072xxxx MCU
70 -)))
71 -* (((
72 -SX1276/78 Wireless Chip 
73 -)))
74 -* (((
75 -(((
76 -Power Consumption:
77 -)))
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
78 78  
79 -* (((
80 -Idle: 4mA@12v
81 -)))
82 -* (((
83 -20dB Transmit: 34mA@12v
84 -)))
85 -)))
86 -
87 -(((
88 -
89 -
90 90  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
91 -)))
92 92  
93 -* (((
94 -2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
95 -)))
96 -* (((
97 -2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
98 -)))
99 -* (((
100 -2 x Relay Output (5A@250VAC / 30VDC)
101 -)))
102 -* (((
103 -2 x 0~~20mA Analog Input (res:0.01mA)
104 -)))
105 -* (((
106 -2 x 0~~30V Analog Input (res:0.01v)
107 -)))
108 -* (((
109 -Power Input 7~~ 24V DC. 
110 -)))
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. 
111 111  
112 -(((
113 -
114 -
115 115  (% style="color:#037691" %)**LoRa Spec:**
116 -)))
117 117  
118 -* (((
119 -(((
120 -Frequency Range:
121 -)))
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.
122 122  
123 -* (((
124 -Band 1 (HF): 862 ~~ 1020 Mhz
125 -)))
126 -* (((
127 -Band 2 (LF): 410 ~~ 528 Mhz
128 -)))
129 -)))
130 -* (((
131 -168 dB maximum link budget.
132 -)))
133 -* (((
134 -+20 dBm - 100 mW constant RF output vs.
135 -)))
136 -* (((
137 -+14 dBm high efficiency PA.
138 -)))
139 -* (((
140 -Programmable bit rate up to 300 kbps.
141 -)))
142 -* (((
143 -High sensitivity: down to -148 dBm.
144 -)))
145 -* (((
146 -Bullet-proof front end: IIP3 = -12.5 dBm.
147 -)))
148 -* (((
149 -Excellent blocking immunity.
150 -)))
151 -* (((
152 -Low RX current of 10.3 mA, 200 nA register retention.
153 -)))
154 -* (((
155 -Fully integrated synthesizer with a resolution of 61 Hz.
156 -)))
157 -* (((
158 -FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
159 -)))
160 -* (((
161 -Built-in bit synchronizer for clock recovery.
162 -)))
163 -* (((
164 -Preamble detection.
165 -)))
166 -* (((
167 -127 dB Dynamic Range RSSI.
168 -)))
169 -* (((
170 -Automatic RF Sense and CAD with ultra-fast AFC.
171 -)))
172 -* (((
173 -Packet engine up to 256 bytes with CRC.
174 -
175 -
176 -
177 -)))
178 -
179 179  == 1.3 Features ==
180 180  
181 -
182 182  * LoRaWAN Class A & Class C protocol
183 -
184 184  * Optional Customized LoRa Protocol
185 -
186 186  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
187 -
188 188  * AT Commands to change parameters
189 -
190 190  * Remote configure parameters via LoRa Downlink
191 -
192 192  * Firmware upgradable via program port
193 -
194 194  * Counting
195 195  
196 196  == 1.4 Applications ==
197 197  
198 -
199 199  * Smart Buildings & Home Automation
200 -
201 201  * Logistics and Supply Chain Management
202 -
203 203  * Smart Metering
204 -
205 205  * Smart Agriculture
206 -
207 207  * Smart Cities
208 -
209 209  * Smart Factory
210 210  
211 211  == 1.5 Hardware Variants ==
... ... @@ -225,18 +225,16 @@
225 225  * 1 x Counting Port
226 226  )))
227 227  
228 -= 2. Power ON Device =
133 += 2. Powering ON the Device =
229 229  
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.
230 230  
231 -(((
232 -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.
233 -)))
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.
234 234  
235 -(((
236 -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.
237 237  
238 -
239 -)))
240 240  
241 241  [[image:1653297104069-180.png]]
242 242  
... ... @@ -243,15 +243,16 @@
243 243  
244 244  = 3. Operation Mode =
245 245  
246 -== 3.1 How it works? ==
149 +== 3.1 How does it work? ==
247 247  
248 -
249 249  (((
250 -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. 
251 251  )))
252 252  
253 253  (((
254 -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.
255 255  )))
256 256  
257 257  
... ... @@ -1667,9 +1667,6 @@
1667 1667  (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1668 1668  |(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1669 1669  |**PWR**|Always on if there is power
1670 -|**SYS**|(((
1671 -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.
1672 -)))
1673 1673  |**TX**|(((
1674 1674  (((
1675 1675  Device boot: TX blinks 5 times.
... ... @@ -1684,20 +1684,16 @@
1684 1684  )))
1685 1685  )))
1686 1686  |**RX**|RX blinks once when receive a packet.
1687 -|**DO1**|
1688 -|**DO2**|
1689 -|**DO3**|
1690 -|**DI2**|(((
1691 -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
1692 1692  )))
1693 1693  |**DI2**|(((
1694 -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
1695 1695  )))
1696 -|**DI2**|(((
1697 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1698 -)))
1699 -|**RO1**|
1700 -|**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
1701 1701  
1702 1702  = 4. Use AT Command =
1703 1703  
... ... @@ -1708,10 +1708,6 @@
1708 1708  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.
1709 1709  )))
1710 1710  
1711 -(((
1712 -
1713 -)))
1714 -
1715 1715  [[image:1653358238933-385.png]]
1716 1716  
1717 1717  

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0