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1 -XWiki.pradeeka
1 +XWiki.Xiaoling
Content
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19 19  
20 20  = 1.Introduction =
21 21  
22 -== 1.1 What is the LT-22222-L I/O Controller? ==
22 +== 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.
25 +
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.
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 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.
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.
34 34  )))
35 35  
36 -> The LT Series I/O Controllers are designed for easy, low-cost installation on LoRaWAN networks.
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 +)))
37 37  
38 38  (((
39 -You can connect the LT-22222-L I/O Controller to a LoRaWAN network service provider in several ways:
41 +The use environment includes:
42 +)))
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.
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.
46 +)))
44 44  
45 -> You can use the Dragino LG308 gateway to expand or create LoRaWAN coverage in your area.
48 +(((
49 +2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
50 +
51 +
46 46  )))
47 47  
48 48  (((
... ... @@ -53,62 +53,153 @@
53 53  
54 54  == 1.2 Specifications ==
55 55  
62 +(((
63 +
64 +
56 56  (% style="color:#037691" %)**Hardware System:**
66 +)))
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
68 +* (((
69 +STM32L072xxxx MCU
70 +)))
71 +* (((
72 +SX1276/78 Wireless Chip 
73 +)))
74 +* (((
75 +(((
76 +Power Consumption:
77 +)))
64 64  
79 +* (((
80 +Idle: 4mA@12v
81 +)))
82 +* (((
83 +20dB Transmit: 34mA@12v
84 +)))
85 +)))
86 +
87 +(((
88 +
89 +
65 65  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
91 +)))
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. 
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 +)))
73 73  
112 +(((
113 +
114 +
74 74  (% style="color:#037691" %)**LoRa Spec:**
116 +)))
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.
118 +* (((
119 +(((
120 +Frequency Range:
121 +)))
94 94  
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 +
95 95  == 1.3 Features ==
96 96  
181 +
97 97  * LoRaWAN Class A & Class C protocol
183 +
98 98  * Optional Customized LoRa Protocol
185 +
99 99  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
187 +
100 100  * AT Commands to change parameters
189 +
101 101  * Remote configure parameters via LoRa Downlink
191 +
102 102  * Firmware upgradable via program port
193 +
103 103  * Counting
104 104  
105 105  == 1.4 Applications ==
106 106  
198 +
107 107  * Smart Buildings & Home Automation
200 +
108 108  * Logistics and Supply Chain Management
202 +
109 109  * Smart Metering
204 +
110 110  * Smart Agriculture
206 +
111 111  * Smart Cities
208 +
112 112  * Smart Factory
113 113  
114 114  == 1.5 Hardware Variants ==
... ... @@ -128,124 +128,83 @@
128 128  * 1 x Counting Port
129 129  )))
130 130  
131 -= 2. Assembling the Device =
228 += 2. Power ON Device =
132 132  
133 -== 2.1 What is included in the package? ==
134 134  
135 -The package includes the following items:
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 +)))
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
235 +(((
236 +PWR will on when device is properly powered.
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.
238 +
239 +)))
143 143  
144 -== 2.2 Terminals ==
241 +[[image:1653297104069-180.png]]
145 145  
146 -Upper screw terminal block (from left to right):
147 147  
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
244 += 3. Operation Mode =
156 156  
157 -Lower screw terminal block (from left to right):
246 +== 3.1 How it works? ==
158 158  
159 -(% style="width:633px" %)
160 -|=(% style="width: 296px;" %)Terminal|=(% style="width: 334px;" %)Function
161 -|(% style="width:296px" %)RO1-2|(% style="width:334px" %)Relay Output 1
162 -|(% style="width:296px" %)RO1-1|(% style="width:334px" %)Relay Output 1
163 -|(% style="width:296px" %)RO2-2|(% style="width:334px" %)Relay Output 2
164 -|(% style="width:296px" %)RO2-1|(% style="width:334px" %)Relay Output 2
165 -|(% style="width:296px" %)DI2+|(% style="width:334px" %)Digital Input 2
166 -|(% style="width:296px" %)DI2-|(% style="width:334px" %)Digital Input 2
167 -|(% style="width:296px" %)DI1+|(% style="width:334px" %)Digital Input 1
168 -|(% style="width:296px" %)DI1-|(% style="width:334px" %)Digital Input 1
169 -|(% style="width:296px" %)DO2|(% style="width:334px" %)Digital Output 2
170 -|(% style="width:296px" %)DO1|(% style="width:334px" %)Digital Output 1
171 171  
172 -== 2.3 Powering ==
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. 
251 +)))
173 173  
174 -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. The power indicator (PWR) LED will turn on when the device is properly powered.
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.
255 +)))
175 175  
176 176  
177 -[[image:1653297104069-180.png]]
258 +== 3.2 Example to join LoRaWAN network ==
178 178  
179 179  
180 -= 3. Operation Mode =
261 +(((
262 +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. 
181 181  
182 -== 3.1 How does it work? ==
264 +
265 +)))
183 183  
184 -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.
267 +[[image:image-20220523172350-1.png||height="266" width="864"]]
185 185  
186 -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. 
187 187  
188 -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.
270 +(((
271 +The LG308 is already set to connect to [[TTN network >>url:https://www.thethingsnetwork.org/]]. So what we need to do now is only configure register this device to TTN:
189 189  
190 -== 3.2 Registering with a LoRaWAN network server ==
273 +
274 +)))
191 191  
192 -The diagram below shows how the LT-22222-L connects to a typical LoRaWAN network.
276 +(((
277 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LT IO controller.
278 +)))
193 193  
194 -[[image:image-20220523172350-1.png||height="266" width="864"]]
280 +(((
281 +Each LT is shipped with a sticker with the default device EUI as below:
282 +)))
195 195  
196 -=== 3.2.1 Prerequisites ===
197 -
198 -Make sure you have the device registration information such as DevEUI, AppEUI, and AppKey with you. The registration information can be found on a sticker that can be found inside the package. Please keep the **registration information** sticker in a safe place for future reference.
199 -
200 200  [[image:image-20230425173427-2.png||height="246" width="530"]]
201 201  
202 -The following subsections explain how to register the LT-22222-L with different LoRaWAN network server providers.
203 203  
204 -=== 3.2.2 The Things Stack Sandbox (TTSS) ===
287 +Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
205 205  
206 -* Log in to your [[The Things Stack Sandbox>>https://eu1.cloud.thethings.network]] account.
207 -* Create an application if you do not have one yet.
208 -* Register LT-22222-L with that application. Two registration options available:
289 +**Add APP EUI in the application.**
209 209  
210 -==== Using the LoRaWAN Device Repository: ====
291 +[[image:1653297955910-247.png||height="321" width="716"]]
211 211  
212 -* Go to your application and click on the **Register end device** button.
213 -* On the **Register end device** page:
214 -** Select the option **Select the end device in the LoRaWAN Device Repository**.
215 -** Choose the **End device brand**, **Model**, **Hardware version**, **Firmware version**, and **Profile (Region)**.
216 -** Select the **Frequency plan** that matches with your device.
217 217  
218 -[[image:lt-22222-l-dev-repo-reg-p1.png||height="625" width="1000"]]
294 +**Add APP KEY and DEV EUI**
219 219  
220 -*
221 -** Enter the **AppEUI** in the **JoinEUI** field and click **Confirm** button.
222 -** Enter the **DevEUI** in the **DevEUI** field.
223 -** Enter the **AppKey** in the **AppKey** field.
224 -** In the **End device ID** field, enter a unique name within this application for your LT-22222-N.
225 -** Under **After registration**, select the **View registered end device** option.
296 +[[image:1653298023685-319.png]]
226 226  
227 -[[image:lt-22222-l-dev-repo-reg-p2.png||height="625" width="1000"]]
228 228  
229 -==== Entering device information manually: ====
299 +(((
300 +(% 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.
230 230  
231 -* On the **Register end device** page:
232 -** Select the **Enter end device specified manually** option.
233 -** Select the **Frequency plan** that matches with your device.
234 -** Select the **LoRaWAN version**.
235 -** Select the **Regional Parameters version**.
236 -** Click **Show advanced activation, LoRaWAN class and cluster settings** option.
237 -** Select **Over the air activation (OTAA)** option under **Activation mode**
238 -** Select **Class C (Continuous)** from the **Additional LoRaWAN class capabilities**.
239 -** Enter **AppEUI** in the **JoinEUI** field and click **Confirm** button.
240 -** Enter **DevEUI** in the **DevEUI** field.
241 -** Enter **AppKey** in the **AppKey** field.
242 -** In the **End device ID** field, enter a unique name within this application for your LT-22222-N.
243 -** Under **After registration**, select the **View registered end device** option.
302 +
303 +)))
244 244  
245 -==== Joining ====
246 -
247 -Click on **Live Data** in the left navigation. Then, power on the device, and it will join The Things Stack Sandbox. You can see the join request, join accept, followed by uplink messages form the device showing in the Live Data panel.
248 -
249 249  [[image:1653298044601-602.png||height="405" width="709"]]
250 250  
251 251  
... ... @@ -1611,6 +1611,9 @@
1611 1611  (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1612 1612  |(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1613 1613  |**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 +)))
1614 1614  |**TX**|(((
1615 1615  (((
1616 1616  Device boot: TX blinks 5 times.
... ... @@ -1625,16 +1625,20 @@
1625 1625  )))
1626 1626  )))
1627 1627  |**RX**|RX blinks once when receive a packet.
1628 -|**DO1**|For LT-22222-L: ON when DO1 is low, LOW when DO1 is high
1629 -|**DO2**|For LT-22222-L: ON when DO2 is low, LOW when DO2 is high
1630 -|**DI1**|(((
1631 -For LT-22222-L: ON when DI1 is high, LOW when DI1 is low
1687 +|**DO1**|
1688 +|**DO2**|
1689 +|**DO3**|
1690 +|**DI2**|(((
1691 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1632 1632  )))
1633 1633  |**DI2**|(((
1634 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1694 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1635 1635  )))
1636 -|**RO1**|For LT-22222-L: ON when RO1 is closed, LOW when RO1 is open
1637 -|**RO2**|For LT-22222-L: ON when RO2 is closed, LOW when RO2 is open
1696 +|**DI2**|(((
1697 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1698 +)))
1699 +|**RO1**|
1700 +|**RO2**|
1638 1638  
1639 1639  = 4. Use AT Command =
1640 1640  
... ... @@ -1645,6 +1645,10 @@
1645 1645  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.
1646 1646  )))
1647 1647  
1711 +(((
1712 +
1713 +)))
1714 +
1648 1648  [[image:1653358238933-385.png]]
1649 1649  
1650 1650  
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