Skip to Content
Last modified by Mengting Qiu on 2025/06/04 18:42
From version 132.1
edited by Mengting Qiu
on 2024/03/04 15:05
Change comment: There is no comment for this version
To version 162.1
edited by Dilisi S
on 2024/11/05 03:38
Change comment: edits from section 3.6.3

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.ting
1 +XWiki.pradeeka
Content
... ... @@ -19,36 +19,30 @@
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 +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 -(((
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 -)))
36 +> The LT Series I/O Controllers are designed for easy, low-cost installation on LoRaWAN networks.
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.
39 +You can connect the LT-22222-L I/O Controller to a LoRaWAN network service provider in several ways:
50 50  
51 -
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.
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 -)))
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
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 -)))
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. 
111 111  
112 -(((
113 -
114 -
115 115  (% style="color:#037691" %)**LoRa Spec:**
116 -)))
117 117  
118 -* (((
119 -(((
120 -Frequency Range:
121 -)))
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.
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 ==
... ... @@ -225,92 +225,140 @@
225 225  * 1 x Counting Port
226 226  )))
227 227  
228 -= 2. Power ON Device =
131 += 2. Assembling the Device =
229 229  
133 +== 2.1 What is included in the package? ==
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 -)))
135 +The package includes the following items:
234 234  
235 -(((
236 -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
237 237  
238 -
239 -)))
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.
240 240  
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" %)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 +
172 +== 2.3 Powering ==
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.
175 +
176 +
241 241  [[image:1653297104069-180.png]]
242 242  
243 243  
244 244  = 3. Operation Mode =
245 245  
246 -== 3.1 How it works? ==
182 +== 3.1 How does it work? ==
247 247  
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.
248 248  
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 -)))
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. 
252 252  
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 -)))
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.
256 256  
190 +== 3.2 Registering with a LoRaWAN network server ==
257 257  
258 -== 3.2 Example to join LoRaWAN network ==
192 +The diagram below shows how the LT-22222-L connects to a typical LoRaWAN network.
259 259  
194 +[[image:image-20220523172350-1.png||height="266" width="864"]]
260 260  
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. 
196 +=== 3.2.1 Prerequisites ===
263 263  
264 -
265 -)))
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.
266 266  
267 -[[image:image-20220523172350-1.png||height="266" width="864"]]
200 +[[image:image-20230425173427-2.png||height="246" width="530"]]
268 268  
202 +The following subsections explain how to register the LT-22222-L with different LoRaWAN network server providers.
269 269  
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:
204 +=== 3.2.2 The Things Stack Sandbox (TTSS) ===
272 272  
273 -
274 -)))
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:
275 275  
276 -(((
277 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LT IO controller.
278 -)))
210 +==== Using the LoRaWAN Device Repository: ====
279 279  
280 -(((
281 -Each LT is shipped with a sticker with the default device EUI as below:
282 -)))
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.
283 283  
284 -[[image:image-20230425173427-2.png||height="246" width="530"]]
218 +[[image:lt-22222-l-dev-repo-reg-p1.png||height="625" width="1000"]]
285 285  
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.
286 286  
287 -Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
227 +[[image:lt-22222-l-dev-repo-reg-p2.png||height="625" width="1000"]]
288 288  
289 -**Add APP EUI in the application.**
229 +==== Entering device information manually: ====
290 290  
291 -[[image:1653297955910-247.png||height="321" width="716"]]
231 +* On the **Register end device** page:
232 +** Select the **Enter end device specifies manually** option as the input method.
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** link to expand the section.
237 +** Select **Over the air activation (OTAA)** option under **Activation mode**
238 +** Select **Class C (Continuous)** from the **Additional LoRaWAN class capabilities**.
292 292  
240 +[[image:lt-22222-l-manually-p1.png||height="625" width="1000"]]
293 293  
294 -**Add APP KEY and DEV EUI**
295 295  
296 -[[image:1653298023685-319.png]]
243 +* Enter **AppEUI** in the **JoinEUI** field and click **Confirm** button.
244 +* Enter **DevEUI** in the **DevEUI** field.
245 +* Enter **AppKey** in the **AppKey** field.
246 +* In the **End device ID** field, enter a unique name within this application for your LT-22222-N.
247 +* Under **After registration**, select the **View registered end device** option.
297 297  
249 +[[image:lt-22222-l-manually-p2.png||height="625" width="1000"]]
298 298  
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.
301 301  
302 -
303 -)))
252 +==== Joining ====
304 304  
254 +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.
255 +
305 305  [[image:1653298044601-602.png||height="405" width="709"]]
306 306  
307 307  
308 -== 3.3 Uplink Payload ==
259 +== 3.3 Uplink Payload formats ==
309 309  
310 310  
311 -There are five working modes + one interrupt mode on LT for different type application:
262 +The LT-22222-L has 5 working modes. It also has an interrupt/trigger mode for different type applications that can be used together with all the working modes as an additional feature. The default mode is MOD1 and you can switch between these modes using AT commands.
312 312  
313 -* (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
264 +* (% style="color:blue" %)**MOD1**(%%): (default mode/factory set): 2 x ACI + 2AVI + DI + DO + RO
314 314  
315 315  * (% style="color:blue" %)**MOD2**(%%): Double DI Counting + DO + RO
316 316  
... ... @@ -326,7 +326,7 @@
326 326  
327 327  
328 328  (((
329 -The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default. (% style="display:none" %)
280 +The uplink payload is 11 bytes long. Uplink packets are sent over LoRaWAN FPort=2. By default, one uplink is sent every 10 minutes. (% style="display:none" %)
330 330  
331 331  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
332 332  |(% 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**
... ... @@ -344,23 +344,23 @@
344 344  )))
345 345  
346 346  (((
347 -(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
298 +(% style="color:#4f81bd" %)*** DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
348 348  
349 349  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
350 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
351 -|RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
301 +|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
302 +|RO1|RO2|--DI3--|DI2|DI1|--DO3--|DO2|DO1
352 352  )))
353 353  
354 -* RO is for relay. ROx=1 : close, ROx=0 always open.
355 -* DI is for digital input. DIx=1: high or float, DIx=0: low.
356 -* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
305 +* RO is for relay. ROx=1 : closed, ROx=0 always open.
306 +* DI is for digital input. DIx=1: high or floating, DIx=0: low.
307 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or floating.
357 357  
358 -(% style="color:red" %)**Note: DI3 and DO3 bit are not valid for LT-22222-L**
309 +(% style="color:red" %)**Note: DI3 and DO3 bits are not valid for LT-22222-L**
359 359  
360 -For example if payload is: [[image:image-20220523175847-2.png]]
311 +For example, if the payload is: [[image:image-20220523175847-2.png]]
361 361  
362 362  
363 -**The value for the interface is:  **
314 +**The interface values can be calculated as follows:  **
364 364  
365 365  AVI1 channel voltage is 0x04AB/1000=1195(DEC)/1000=1.195V
366 366  
... ... @@ -370,35 +370,35 @@
370 370  
371 371  ACI2 channel current is 0x1300/1000=4.864mA
372 372  
373 -The last byte 0xAA= 10101010(B) means
324 +The last byte 0xAA= 10101010(b) means,
374 374  
375 -* [1] RO1 relay channel is close and the RO1 LED is ON.
376 -* [0] RO2 relay channel is open and RO2 LED is OFF;
377 -
378 -**LT22222-L:**
379 -
380 -* [1] DI2 channel is high input and DI2 LED is ON;
381 -* [0] DI1 channel is low input;
382 -
383 -* [0] DO3 channel output state
384 -** DO3 is float in case no load between DO3 and V+.;
326 +* [1] RO1 relay channel is closed, and the RO1 LED is ON.
327 +* [0] RO2 relay channel is open, and RO2 LED is OFF.
328 +* [1] DI3 - not used for LT-22222-L.
329 +* [0] DI2 channel input is low, and the DI2 LED is OFF.
330 +* [1] DI1 channel input state:
331 +** DI1 is floating when there is no load between DI1 and V+.
332 +** DI1 is high when there is load between DI1 and V+.
333 +** DI1 LED is ON in both cases.
334 +* [0] DO3 channel output state:
335 +** DO3 is float in case no load between DO3 and V+.
385 385  ** DO3 is high in case there is load between DO3 and V+.
386 -** DO3 LED is off in both case
387 -* [1] DO2 channel output is low and DO2 LED is ON.
388 -* [0] DO1 channel output state
389 -** DO1 is float in case no load between DO1 and V+.;
390 -** DO1 is high in case there is load between DO1 and V+.
391 -** DO1 LED is off in both case
337 +** DO3 LED is OFF in both case
338 +* [1] DO2 channel output is low, and the DO2 LED is ON.
339 +* [0] DO1 channel output state:
340 +** DO1 is floating when there is no load between DO1 and V+.
341 +** DO1 is high when there is load between DO1 and V+.
342 +** DO1 LED is OFF in both case.
392 392  
393 393  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
394 394  
395 395  
396 396  (((
397 -**For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
348 +**For LT-22222-L**: In this mode, the **DI1 and DI2** are used as counting pins.
398 398  )))
399 399  
400 400  (((
401 -Total : 11 bytes payload
352 +The uplink payload is 11 bytes long.
402 402  
403 403  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
404 404  |(% 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**
... ... @@ -408,26 +408,26 @@
408 408  )))
409 409  
410 410  (((
411 -(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
362 +(% style="color:#4f81bd" %)***DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
412 412  
413 413  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
414 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
415 -|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
365 +|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
366 +|RO1|RO2|FIRST|Reserve|Reserve|--DO3--|DO2|DO1
416 416  
417 -RO is for relay. ROx=1 : close , ROx=0 always open.
368 +* RO is for relay. ROx=1 : closed, ROx=0 always open.
418 418  )))
419 419  
420 -* FIRST: Indicate this is the first packet after join network.
421 -* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
371 +* FIRST: Indicates that this is the first packet after joining the network.
372 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or floating.
422 422  
423 423  (((
424 -(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
375 +(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L**
425 425  
426 426  
427 427  )))
428 428  
429 429  (((
430 -**To use counting mode, please run:**
381 +**To activate this mode, please run the following AT command:**
431 431  )))
432 432  
433 433  (((
... ... @@ -448,17 +448,17 @@
448 448  (((
449 449  **For LT22222-L:**
450 450  
451 -(% style="color:blue" %)**AT+TRIG1=0,100**(%%)**  (set DI1 port to trigger on low level, valid signal is 100ms) **
402 +(% style="color:blue" %)**AT+TRIG1=0,100**(%%)**  (set the DI1 port to trigger on a low level, the valid signal duration is 100ms) **
452 452  
453 -(% style="color:blue" %)**AT+TRIG1=1,100**(%%)**  (set DI1 port to trigger on high level, valid signal is 100ms ) **
404 +(% style="color:blue" %)**AT+TRIG1=1,100**(%%)**  (set the DI1 port to trigger on a high level, the valid signal duration is 100ms) **
454 454  
455 -(% style="color:blue" %)**AT+TRIG2=0,100**(%%)**  (set DI2 port to trigger on low level, valid signal is 100ms) **
406 +(% style="color:blue" %)**AT+TRIG2=0,100**(%%)**  (set the DI2 port to trigger on a low level, the valid signal duration is 100ms) **
456 456  
457 -(% style="color:blue" %)**AT+TRIG2=1,100**(%%)**  (set DI2 port to trigger on high level, valid signal is 100ms ) **
408 +(% style="color:blue" %)**AT+TRIG2=1,100**(%%)**  (set the DI2 port to trigger on a high level, the valid signal duration is 100ms) **
458 458  
459 -(% style="color:blue" %)**AT+SETCNT=1,60**(%%)**   (Set COUNT1 value to 60)**
410 +(% style="color:blue" %)**AT+SETCNT=1,60**(%%)**   (Set the COUNT1 value to 60)**
460 460  
461 -(% style="color:blue" %)**AT+SETCNT=2,60**(%%)**   (Set COUNT2 value to 60)**
412 +(% style="color:blue" %)**AT+SETCNT=2,60**(%%)**   (Set the COUNT2 value to 60)**
462 462  )))
463 463  
464 464  
... ... @@ -465,7 +465,7 @@
465 465  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
466 466  
467 467  
468 -**LT22222-L**: This mode the DI1 is used as a counting pin.
419 +**LT22222-L**: In this mode, the DI1 is used as a counting pin.
469 469  
470 470  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
471 471  |(% 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**
... ... @@ -476,16 +476,16 @@
476 476  )))|DIDORO*|Reserve|MOD
477 477  
478 478  (((
479 -(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
430 +(% style="color:#4f81bd" %)***DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
480 480  
481 481  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
482 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
483 -|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
433 +|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
434 +|RO1|RO2|FIRST|Reserve|Reserve|--DO3--|DO2|DO1
484 484  )))
485 485  
486 -* RO is for relay. ROx=1 : close, ROx=0 always open.
487 -* FIRST: Indicate this is the first packet after join network.
488 -* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
437 +* RO is for relay. ROx=1 : closed, ROx=0 always open.
438 +* FIRST: Indicates that this is the first packet after joining the network.
439 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or floating.
489 489  
490 490  (((
491 491  (% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
... ... @@ -493,7 +493,7 @@
493 493  
494 494  
495 495  (((
496 -**To use counting mode, please run:**
447 +**To activate this mode, please run the following AT command:**
497 497  )))
498 498  
499 499  (((
... ... @@ -506,7 +506,9 @@
506 506  )))
507 507  
508 508  (((
509 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
460 +AT Commands for counting:
461 +
462 +The AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]]. Use only the commands that match 'DI'.
510 510  )))
511 511  
512 512  
... ... @@ -514,11 +514,11 @@
514 514  
515 515  
516 516  (((
517 -**LT22222-L**: This mode the DI1 is used as a counting pin.
470 +**LT22222-L**: In this mode, the DI1 is used as a counting pin.
518 518  )))
519 519  
520 520  (((
521 -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.
474 +The AVI1 is also used for counting. It monitors the voltage and checks it every **60 seconds**. If the voltage is higher or lower than VOLMAX mV, the AVI1 count increases by 1, allowing AVI1 counting to be used to measure a machine's working hours.
522 522  
523 523  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
524 524  |(% 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**
... ... @@ -528,16 +528,16 @@
528 528  )))
529 529  
530 530  (((
531 -(% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
484 +(% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
532 532  
533 533  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
534 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
535 -|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
487 +|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
488 +|RO1|RO2|FIRST|Reserve|Reserve|--DO3--|DO2|DO1
536 536  )))
537 537  
538 -* RO is for relay. ROx=1 : close, ROx=0 always open.
539 -* FIRST: Indicate this is the first packet after join network.
540 -* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
491 +* RO is for relay. ROx=1 : closed, ROx=0 always open.
492 +* FIRST: Indicates that this is the first packet after joining the network.
493 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or floating.
541 541  
542 542  (((
543 543  (% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
... ... @@ -546,7 +546,7 @@
546 546  )))
547 547  
548 548  (((
549 -**To use this mode, please run:**
502 +**To activate this mode, please run the following AT command:**
550 550  )))
551 551  
552 552  (((
... ... @@ -563,9 +563,9 @@
563 563  )))
564 564  
565 565  (((
566 -**Plus below command for AVI1 Counting:**
519 +**In addition to that, below are the commands for AVI1 Counting:**
567 567  
568 -(% style="color:blue" %)**AT+SETCNT=3,60**(%%)**  (set AVI Count to 60)**
521 +(% style="color:blue" %)**AT+SETCNT=3,60**(%%)**  (set AVI Count to 60)**
569 569  
570 570  (% style="color:blue" %)**AT+VOLMAX=20000**(%%)**  (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
571 571  
... ... @@ -1402,56 +1402,73 @@
1402 1402  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
1403 1403  
1404 1404  
1405 -== 3.5 Integrate with Mydevice ==
1358 +== 3.5 Integrating with ThingsEye.io ==
1406 1406  
1360 +If you are using one of The Things Stack plans, you can integrate ThingsEye.io with your application. Once integrated, ThingsEye.io works as an MQTT client for The Things Stack MQTT broker, allowing it to subscribe to upstream traffic and publish downlink traffic.
1407 1407  
1408 -Mydevices provides a human friendly interface to show the sensor data, once we have data in TTN, we can use Mydevices to connect to TTN and see the data in Mydevices. Below are the steps:
1362 +=== 3.5.1 Configuring The Things Stack Sandbox ===
1409 1409  
1410 -(((
1411 -(% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the network at this time.
1412 -)))
1364 +* Go to your Application and select MQTT under Integrations.
1365 +* In the Connection credentials section, under Username, The Thins Stack displays an auto-generated username. You can use it or provide a new one.
1366 +* For the Password, click the Generate new API key button to generate a password. You can see it by clicking on the eye button.
1413 1413  
1414 -(((
1415 -(% style="color:blue" %)**Step 2**(%%): To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1368 +[[image:tts-mqtt-integration.png||height="625" width="1000"]]
1416 1416  
1417 -
1418 -)))
1370 +=== 3.5.2 Configuring ThingsEye.io ===
1419 1419  
1420 -[[image:image-20220719105525-1.png||height="377" width="677"]]
1372 +* Login to your thingsEye.io account.
1373 +* Under the Integrations center, click Integrations.
1374 +* Click the Add integration button (the button with the + symbol).
1421 1421  
1376 +[[image:thingseye-io-step-1.png||height="625" width="1000"]]
1422 1422  
1423 1423  
1424 -[[image:image-20220719110247-2.png||height="388" width="683"]]
1379 +On the Add integration page configure the following:
1425 1425  
1381 +Basic settings:
1426 1426  
1427 -(% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
1383 +* Select The Things Stack Community from the Integration type list.
1384 +* Enter a suitable name for your integration in the Name box or keep the default name.
1385 +* Click the Next button.
1428 1428  
1429 -(% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L) and add DevEUI.(% style="display:none" %)
1387 +[[image:thingseye-io-step-2.png||height="625" width="1000"]]
1430 1430  
1431 -Search under The things network
1389 +Uplink Data converter:
1432 1432  
1433 -[[image:1653356838789-523.png||height="337" width="740"]]
1391 +* Click the Create New button if it is not selected by default.
1392 +* Click the JavaScript button.
1393 +* Paste the uplink decoder function into the text area (first, delete the default code). The demo decoder function can be found here.
1394 +* Click the Next button.
1434 1434  
1396 +[[image:thingseye-io-step-3.png||height="625" width="1000"]]
1435 1435  
1436 -After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1398 +Downlink Data converter (this is an optional step):
1437 1437  
1438 -[[image:image-20220524094909-1.png||height="335" width="729"]]
1400 +* Click the Create new button if it is not selected by default.
1401 +* Click the JavaScript button.
1402 +* Paste the downlink decoder function into the text area (first, delete the default code). The demo decoder function can be found here.
1403 +* Click the Next button.
1439 1439  
1405 +[[image:thingseye-io-step-4.png||height="625" width="1000"]]
1440 1440  
1441 -[[image:image-20220524094909-2.png||height="337" width="729"]]
1407 +Connection:
1442 1442  
1409 +* Choose Region from the Host type.
1410 +* Enter the cluster of your The Things Stack in the Region textbox.
1411 +* Enter the Username and Password in the Credentials section. Use the same username and password you created with the MQTT page of The Things Stack.
1412 +* Click Check connection to test the connection. If the connection is successful, you can see the message saying Connected.
1413 +* Click the Add button.
1443 1443  
1444 -[[image:image-20220524094909-3.png||height="338" width="727"]]
1415 +[[image:thingseye-io-step-5.png||height="625" width="1000"]]
1445 1445  
1446 1446  
1447 -[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1418 +Your integration is added to the integrations list and it will display on the Integrations page.
1448 1448  
1420 +[[image:thingseye-io-step-6.png||height="625" width="1000"]]
1449 1449  
1450 -[[image:image-20220524094909-5.png||height="341" width="734"]]
1451 1451  
1423 +== 3.6 Interface Details ==
1452 1452  
1453 -== 3.6 Interface Detail ==
1454 -
1455 1455  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1456 1456  
1457 1457  
... ... @@ -1460,16 +1460,16 @@
1460 1460  [[image:1653356991268-289.png]]
1461 1461  
1462 1462  
1463 -=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1433 +=== 3.6.2 Digital Input Ports: DI1/DI2 ( For LT-22222-L) ===
1464 1464  
1465 1465  
1466 1466  (((
1467 -The DI port of LT-22222-L can support **NPN** or **PNP** or **Dry Contact** output sensor.
1437 +The DI ports of the LT-22222-L can support **NPN**, **PNP**, or **dry contact** output sensors.
1468 1468  )))
1469 1469  
1470 1470  (((
1471 1471  (((
1472 -Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA). (% class="mark" %)When there is active current pass NEC2501 pin1 to pin2. The DI will be active high and DI LED status will change.
1442 +The part of the internal circuit of the LT-22222-L shown below includes the NEC2501 photocoupler. The active current from NEC2501 pin 1 to pin 2 is 1 mA, with a maximum allowable current of 50 mA. When active current flows from NEC2501 pin 1 to pin 2, the DI becomes active HIGH, and the DI LED status changes.
1473 1473  
1474 1474  
1475 1475  )))
... ... @@ -1479,7 +1479,7 @@
1479 1479  
1480 1480  (((
1481 1481  (((
1482 -When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1452 +(% 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" %)When connecting a device to the DI port, both DI1+ and DI1- must be connected.
1483 1483  )))
1484 1484  )))
1485 1485  
... ... @@ -1488,22 +1488,22 @@
1488 1488  )))
1489 1489  
1490 1490  (((
1491 -(% style="color:blue" %)**Example1**(%%): Connect to a Low active sensor.
1461 +(% style="color:blue" %)**Example1**(%%): Connecting to a low-active sensor.
1492 1492  )))
1493 1493  
1494 1494  (((
1495 -This type of sensor will output a low signal GND when active.
1465 +This type of sensors outputs a low (GND) signal when active.
1496 1496  )))
1497 1497  
1498 1498  * (((
1499 -Connect sensor's output to DI1-
1469 +Connect the sensor's output to DI1-
1500 1500  )))
1501 1501  * (((
1502 -Connect sensor's VCC to DI1+.
1472 +Connect the sensor's VCC to DI1+.
1503 1503  )))
1504 1504  
1505 1505  (((
1506 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1476 +When the sensor is active, the current between NEC2501 pin 1 and pin 2 will be：
1507 1507  )))
1508 1508  
1509 1509  (((
... ... @@ -1511,7 +1511,7 @@
1511 1511  )))
1512 1512  
1513 1513  (((
1514 -If** DI1+ **= **12v**, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1484 +For example, if** DI1+ **= **12V**, the resulting current is [[image:1653968155772-850.png||height="23" width="19"]]= 12mA. Therefore, the LT-22222-L will be able to detect this active signal.
1515 1515  )))
1516 1516  
1517 1517  (((
... ... @@ -1519,22 +1519,22 @@
1519 1519  )))
1520 1520  
1521 1521  (((
1522 -(% style="color:blue" %)**Example2**(%%): Connect to a High active sensor.
1492 +(% style="color:blue" %)**Example2**(%%): Connecting to a high-active sensor.
1523 1523  )))
1524 1524  
1525 1525  (((
1526 -This type of sensor will output a high signal (example 24v) when active.
1496 +This type of sensors outputs a high signal (e.g., 24V) when active.
1527 1527  )))
1528 1528  
1529 1529  * (((
1530 -Connect sensor's output to DI1+
1500 +Connect the sensor's output to DI1+
1531 1531  )))
1532 1532  * (((
1533 -Connect sensor's GND DI1-.
1503 +Connect the sensor's GND DI1-.
1534 1534  )))
1535 1535  
1536 1536  (((
1537 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1507 +When the sensor is active, the current between NEC2501 pin1 and pin2 will be:
1538 1538  )))
1539 1539  
1540 1540  (((
... ... @@ -1542,7 +1542,7 @@
1542 1542  )))
1543 1543  
1544 1544  (((
1545 -If **DI1+ = 24v**, the[[image:1653968155772-850.png||height="23" width="19"]] 24mA , So the LT-22222-L will be able to detect this high active signal.
1515 +If **DI1+ = 24V**, the resulting current[[image:1653968155772-850.png||height="23" width="19"]] 24mA , Therefore, the LT-22222-L will detect this high-active signal.
1546 1546  )))
1547 1547  
1548 1548  (((
... ... @@ -1550,22 +1550,22 @@
1550 1550  )))
1551 1551  
1552 1552  (((
1553 -(% style="color:blue" %)**Example3**(%%): Connect to a 220v high active sensor.
1523 +(% style="color:blue" %)**Example3**(%%): Connecting to a 220V high-active sensor.
1554 1554  )))
1555 1555  
1556 1556  (((
1557 -Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1527 +Assume that you want to monitor an active signal higher than 220V without damaging the photocoupler  
1558 1558  )))
1559 1559  
1560 1560  * (((
1561 -Connect sensor's output to DI1+ with a serial 50K resistor
1531 +Connect the sensor's output to DI1+ with a 50K resistor in series.
1562 1562  )))
1563 1563  * (((
1564 -Connect sensor's GND DI1-.
1534 +Connect the sensor's GND DI1-.
1565 1565  )))
1566 1566  
1567 1567  (((
1568 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1538 +When the sensor is active, the current between NEC2501 pin1 and pin2 will be:
1569 1569  )))
1570 1570  
1571 1571  (((
... ... @@ -1573,37 +1573,37 @@
1573 1573  )))
1574 1574  
1575 1575  (((
1576 -If sensor output is 220v, the [[image:1653968155772-850.png||height="23" width="19"]](% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1546 +If the sensor output is 220V, then [[image:1653968155772-850.png||height="23" width="19"]](% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA. Therefore, the LT-22222-L will be able to safely detect this high-active signal.
1577 1577  )))
1578 1578  
1579 1579  
1580 -(% style="color:blue" %)**Example4**(%%): Connect to Dry Contact sensor
1550 +(% style="color:blue" %)**Example4**(%%): Connecting to Dry Contact sensor
1581 1581  
1582 -From above DI ports circuit, we can see that active the photocoupler will need to have a voltage difference between DI+ and DI- port. While the Dry Contact sensor is a passive component which can't provide this voltage difference.
1552 +From DI port circuit above, you can see that activating the photocoupler requires a voltage difference between the DI+ and DI- ports. However, the Dry Contact sensor is a passive component and cannot provide this voltage difference.
1583 1583  
1584 -To detect a Dry Contact, we can provide a power source to one pin of the Dry Contact. Below is a reference connection.
1554 +To detect a Dry Contact, you can supply a power source to one pin of the Dry Contact. Below is a reference circuit diagram.
1585 1585  
1586 1586  [[image:image-20230616235145-1.png]]
1587 1587  
1588 -(% style="color:blue" %)**Example5**(%%): Connect to Open Colleactor
1558 +(% style="color:blue" %)**Example5**(%%): Connecting to an Open Collector
1589 1589  
1590 1590  [[image:image-20240219115718-1.png]]
1591 1591  
1592 1592  
1593 -=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1563 +=== 3.6.3 Digital Output Ports: DO1/DO2 /DO3 ===
1594 1594  
1595 1595  
1596 -(% style="color:blue" %)**NPN output**(%%): GND or Float. Max voltage can apply to output pin is 36v.
1566 +(% style="color:blue" %)**NPN output**(%%): GND or Float. The maximum voltage that can be applied to the output pin is 36V.
1597 1597  
1598 -(% style="color:red" %)**Note: DO pins go to float when device is power off.**
1568 +(% style="color:red" %)**Note: The DO pins will float when device is powered off.**
1599 1599  
1600 1600  [[image:1653357531600-905.png]]
1601 1601  
1602 1602  
1603 -=== 3.6.4 Analog Input Interface ===
1573 +=== 3.6.4 Analog Input Interfaces ===
1604 1604  
1605 1605  
1606 -The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
1576 +The analog input interface is shown below. The LT-22222-L will measure the IN2 voltage to calculate the current passing through the load. The formula is:
1607 1607  
1608 1608  
1609 1609  (% style="color:blue" %)**AC2 = (IN2 voltage )/12**
... ... @@ -1610,14 +1610,14 @@
1610 1610  
1611 1611  [[image:1653357592296-182.png]]
1612 1612  
1613 -Example to connect a 4~~20mA sensor
1583 +Example: Connecting a 4~~20mA sensor
1614 1614  
1615 -We take the wind speed sensor as an example for reference only.
1585 +We will use the wind speed sensor as an example for reference only.
1616 1616  
1617 1617  
1618 1618  (% style="color:blue" %)**Specifications of the wind speed sensor:**
1619 1619  
1620 -(% style="color:red" %)**Red:  12~~24v**
1590 +(% style="color:red" %)**Red:  12~~24V**
1621 1621  
1622 1622  (% style="color:#ffc000" %)**Yellow:  4~~20mA**
1623 1623  
... ... @@ -1630,7 +1630,7 @@
1630 1630  [[image:1653357648330-671.png||height="155" width="733"]]
1631 1631  
1632 1632  
1633 -Example connected to a regulated power supply to measure voltage
1603 +Example: Connecting to a regulated power supply to measure voltage
1634 1634  
1635 1635  [[image:image-20230608101532-1.png||height="606" width="447"]]
1636 1636  
... ... @@ -1639,7 +1639,7 @@
1639 1639  [[image:image-20230608101722-3.png||height="102" width="1139"]]
1640 1640  
1641 1641  
1642 -(% style="color:blue; font-weight:bold" %)**Specifications of the regulated power**(%%) (% style="color:blue" %)**:**
1612 +(% style="color:blue; font-weight:bold" %)**Specifications of the regulated power supply**(% style="color:blue" %)**:**
1643 1643  
1644 1644  (% style="color:red" %)**Red:  12~~24v**
1645 1645  
... ... @@ -1650,9 +1650,9 @@
1650 1650  
1651 1651  
1652 1652  (((
1653 -The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device's Power Line to in serial of RO1_1 and RO_2. Such as below:
1623 +The LT-22222-L has two relay interfaces, RO1 and RO2, each using two pins of the screw terminal (ROx-1 and ROx-2 where x is the port number, 1 or 2). You can connect a device's power line in series with one of the relay interfaces (e.g., RO1-1 and RO1-2 screw terminals). See the example below:
1654 1654  
1655 -**Note**: RO pins go to Open(NO) when device is power off.
1625 +**Note**: The ROx pins will be in the Open (NO) state when the LT-22222-L is powered off.
1656 1656  )))
1657 1657  
1658 1658  [[image:image-20220524100215-9.png]]
... ... @@ -1664,12 +1664,9 @@
1664 1664  == 3.7 LEDs Indicators ==
1665 1665  
1666 1666  
1667 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1668 -|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:470px" %)**Feature**
1637 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1638 +|(% 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.
... ... @@ -1684,39 +1684,31 @@
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
1654 +|**DO1**|For LT-22222-L: ON when DO1 is low, LOW when DO1 is high
1655 +|**DO2**|For LT-22222-L: ON when DO2 is low, LOW when DO2 is high
1656 +|**DI1**|(((
1657 +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
1660 +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**|
1662 +|**RO1**|For LT-22222-L: ON when RO1 is closed, LOW when RO1 is open
1663 +|**RO2**|For LT-22222-L: ON when RO2 is closed, LOW when RO2 is open
1701 1701  
1702 -= 4. Use AT Command =
1665 += 4. Using AT Command =
1703 1703  
1704 -== 4.1 Access AT Command ==
1667 +== 4.1 Connecting the LT-22222-L to a computer ==
1705 1705  
1706 1706  
1707 1707  (((
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.
1671 +The LT-22222-L supports programming using AT Commands. You can use a USB-to-TTL adapter along with a 3.5mm Program Cable to connect the LT-22222-L to a computer, as shown below.
1709 1709  )))
1710 1710  
1711 -(((
1712 -
1713 -)))
1714 -
1715 1715  [[image:1653358238933-385.png]]
1716 1716  
1717 1717  
1718 1718  (((
1719 -In PC, User needs to set (% style="color:#4f81bd" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**)(%%) to active it. As shown below:
1678 +On the PC, the user needs to set the (% style="color:#4f81bd" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) to a baud rate of (% style="color:green" %)**9600**(%%) to access to access serial console of LT-22222-L. The AT commands are disabled by default, and a password (default:(% style="color:green" %)**123456**)(%%) must be entered to active them, as shown below:
1720 1720  )))
1721 1721  
1722 1722  [[image:1653358355238-883.png]]
... ... @@ -1723,10 +1723,12 @@
1723 1723  
1724 1724  
1725 1725  (((
1726 -More detail AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1685 +You can find more details in the [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1727 1727  )))
1728 1728  
1729 1729  (((
1689 +The following table lists all the AT commands related to the LT-22222-L, except for those used for switching between modes.
1690 +
1730 1730  AT+<CMD>?        : Help on <CMD>
1731 1731  )))
1732 1732  
lt-22222-l-dev-repo-p1.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.pradeeka
Size
... ... @@ -1,0 +1,1 @@
1 +391.8 KB
Content
lt-22222-l-dev-repo-reg-p1.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.pradeeka
Size
... ... @@ -1,0 +1,1 @@
1 +391.7 KB
Content
lt-22222-l-dev-repo-reg-p2.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.pradeeka
Size
... ... @@ -1,0 +1,1 @@
1 +319.1 KB
Content
lt-22222-l-manually-p1.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.pradeeka
Size
... ... @@ -1,0 +1,1 @@
1 +306.6 KB
Content
lt-22222-l-manually-p2.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.pradeeka
Size
... ... @@ -1,0 +1,1 @@
1 +279.1 KB
Content
thingseye-io-step-1.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.pradeeka
Size
... ... @@ -1,0 +1,1 @@
1 +191.8 KB
Content
thingseye-io-step-2.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.pradeeka
Size
... ... @@ -1,0 +1,1 @@
1 +260.3 KB
Content
thingseye-io-step-3.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.pradeeka
Size
... ... @@ -1,0 +1,1 @@
1 +336.6 KB
Content
thingseye-io-step-4.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.pradeeka
Size
... ... @@ -1,0 +1,1 @@
1 +361.1 KB
Content
thingseye-io-step-5.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.pradeeka
Size
... ... @@ -1,0 +1,1 @@
1 +292.1 KB
Content
thingseye-io-step-6.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.pradeeka
Size
... ... @@ -1,0 +1,1 @@
1 +203.8 KB
Content
tts-mqtt-integration.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.pradeeka
Size
... ... @@ -1,0 +1,1 @@
1 +306.4 KB
Content