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Summary

Details

Page properties
Title
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1 -LT-22222-L LoRa IO Controller User Manual
1 +LT-22222-L -- LoRa IO Controller User Manual
Author
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1 -XWiki.Xiaoling
1 +XWiki.pradeeka
Content
... ... @@ -3,6 +3,10 @@
3 3  
4 4  
5 5  
6 +
7 +
8 +
9 +
6 6  **Table of Contents:**
7 7  
8 8  {{toc/}}
... ... @@ -13,38 +13,32 @@
13 13  
14 14  
15 15  
16 -= 1.Introduction =
20 += 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 +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 -(((
41 -1) If user's area has LoRaWAN service coverage, they can just install the I/O controller and configure it to connect the LoRaWAN provider via wireless.
42 -)))
36 +> The LT Series I/O Controllers are designed for easy, low-cost installation on LoRaWAN networks.
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.
39 +You can connect the LT-22222-L I/O Controller to a LoRaWAN network service provider in several ways:
46 46  
47 -
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 a LoRaWAN gateway, such as the Dragino LG308, to expand or create LoRaWAN coverage in your area.
48 48  )))
49 49  
50 50  (((
... ... @@ -53,162 +53,71 @@
53 53  
54 54  )))
55 55  
56 -== 1.2  Specifications ==
54 +== 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 -)))
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 Degrees, 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 -)))
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. 
107 107  
108 -(((
109 -
110 -
111 111  (% style="color:#037691" %)**LoRa Spec:**
112 -)))
113 113  
114 -* (((
115 -(((
116 -Frequency Range:
117 -)))
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.
118 118  
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 -* Remote configure parameters via LoRa Downlink
187 -
101 +* Remotely configure parameters via LoRaWAN Downlink
188 188  * Firmware upgradable via program port
189 -
190 190  * Counting
191 191  
192 -== 1.4  Applications ==
105 +== 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 ==
208 208  
209 209  
210 -(% border="1" style="background-color:#f2f2f2; width:500px" %)
211 -|(% style="background-color:#d9e2f3; color:#0070c0; width:103px" %)**Model**|(% style="background-color:#d9e2f3; color:#0070c0; width:131px" %)**Photo**|(% style="background-color:#d9e2f3; color:#0070c0; width:334px" %)**Description**
117 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
118 +|(% style="background-color:#4f81bd; color:white; width:103px" %)**Model**|(% style="background-color:#4f81bd; color:white; width:131px" %)**Photo**|(% style="background-color:#4f81bd; color:white; width:266px" %)**Description**
212 212  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
213 213  (% style="text-align:center" %)
214 214  [[image:image-20230424115112-1.png||height="106" width="58"]]
... ... @@ -221,93 +221,140 @@
221 221  * 1 x Counting Port
222 222  )))
223 223  
224 -= 2. Power ON Device =
131 += 2. Assembling the Device =
225 225  
133 +== 2.1 What is included in the package? ==
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 -)))
135 +The package includes the following items:
230 230  
231 -(((
232 -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
233 233  
234 -
235 -)))
142 +Attach the LoRaWAN antenna to the antenna connector, ANT,** **located on the top right side of the device, next to the upper terminal block. Secure the antenna by tightening it clockwise.
236 236  
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 the LT-22222-L ==
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 and the negative wire to the GND screw terminals. The power indicator (PWR) LED will turn on when the device is properly powered.
175 +
176 +
237 237  [[image:1653297104069-180.png]]
238 238  
239 239  
240 240  = 3. Operation Mode =
241 241  
242 -== 3.1 How it works? ==
182 +== 3.1 How does it work? ==
243 243  
184 +By default, the LT-22222-L is configured to operate in LoRaWAN Class C mode. It supports OTAA (Over-the-Air Activation), 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.
244 244  
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. 
247 -)))
186 +For LT-22222-L, the LED will show the Join status: After powering on, the TX LED will fast-blink 5 times which means the LT-22222-L will enter the working mode and start to JOIN the LoRaWAN network. The TX LED will be on for 5 seconds after joining the network. When there is a message from the server, the RX LED will be on for 1 second. 
248 248  
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.
251 -)))
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.
252 252  
190 +== 3.2 Registering with a LoRaWAN network server ==
253 253  
254 -== 3.2 Example to join LoRaWAN network ==
192 +The diagram below shows how the LT-22222-L connects to a typical LoRaWAN network.
255 255  
194 +[[image:image-20220523172350-1.png||height="266" width="864"]]
256 256  
257 -(((
258 -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 ===
259 259  
260 -
261 -)))
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.
262 262  
263 -[[image:image-20220523172350-1.png||height="266" width="864"]]
200 +[[image:image-20230425173427-2.png||height="246" width="530"]]
264 264  
202 +The following subsections explain how to register the LT-22222-L with different LoRaWAN network server providers.
265 265  
266 -(((
267 -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) ===
268 268  
269 -
270 -)))
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 are available:
271 271  
272 -(((
273 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LT IO controller.
274 -)))
210 +==== Using the LoRaWAN Device Repository: ====
275 275  
276 -(((
277 -Each LT is shipped with a sticker with the default device EUI as below:
278 -)))
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 your device.
279 279  
280 -[[image:image-20230425173427-2.png||height="246" width="530"]]
218 +[[image:lt-22222-l-dev-repo-reg-p1.png||height="625" width="1000"]]
281 281  
220 +*
221 +** Enter the **AppEUI** in the **JoinEUI** field and click the **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.
282 282  
283 -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"]]
284 284  
285 -**Add APP EUI in the application.**
229 +==== Entering device information manually: ====
286 286  
287 -[[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 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 the **Activation mode**
238 +** Select **Class C (Continuous)** from the **Additional LoRaWAN class capabilities**.
288 288  
240 +[[image:lt-22222-l-manually-p1.png||height="625" width="1000"]]
289 289  
290 -**Add APP KEY and DEV EUI**
291 291  
292 -[[image:1653298023685-319.png]]
243 +* Enter **AppEUI** in the **JoinEUI** field and click the **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.
293 293  
249 +[[image:lt-22222-l-manually-p2.png||height="625" width="1000"]]
294 294  
295 295  
296 -(((
297 -(% 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.
252 +==== Joining ====
298 298  
299 -
300 -)))
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.
301 301  
302 302  [[image:1653298044601-602.png||height="405" width="709"]]
303 303  
304 304  
305 -== 3.3 Uplink Payload ==
259 +== 3.3 Uplink Payload formats ==
306 306  
307 307  
308 -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 types of applications that can be used together with any working mode as an additional feature. The default mode is MOD1 and you can switch between these modes using AT commands.
309 309  
310 -* (% 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
311 311  
312 312  * (% style="color:blue" %)**MOD2**(%%): Double DI Counting + DO + RO
313 313  
... ... @@ -323,10 +323,10 @@
323 323  
324 324  
325 325  (((
326 -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" wfd-invisible="true" %)
327 327  
328 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
329 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
282 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
283 +|(% 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**
330 330  |Value|(((
331 331  AVI1 voltage
332 332  )))|(((
... ... @@ -341,25 +341,25 @@
341 341  )))
342 342  
343 343  (((
344 -(% 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 of RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
345 345  
346 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
347 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
348 -|RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
300 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
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
349 349  )))
350 350  
351 -* RO is for relay. ROx=1 : close，ROx=0 always open.
352 -* DI is for digital input. DIx=1: high or float, DIx=0: low.
353 -* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
305 +* RO is for the 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.
354 354  
355 -(% 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**
356 356  
357 -For example if payload is: [[image:image-20220523175847-2.png]]
311 +For example, if the payload is: [[image:image-20220523175847-2.png]]
358 358  
359 359  
360 -**The value for the interface is:  **
314 +**The interface values can be calculated as follows:  **
361 361  
362 -AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
316 +AVI1 channel voltage is 0x04AB/1000=1195(DEC)/1000=1.195V
363 363  
364 364  AVI2 channel voltage is 0x04AC/1000=1.196V
365 365  
... ... @@ -367,38 +367,35 @@
367 367  
368 368  ACI2 channel current is 0x1300/1000=4.864mA
369 369  
370 -The last byte 0xAA= 10101010(B) means
324 +The last byte 0xAA= **10101010**(b) means,
371 371  
372 -* [1] RO1 relay channel is close and the RO1 LED is ON.
373 -* [0] RO2 relay channel is open and RO2 LED is OFF;
326 +* [1] The RO1 relay channel is CLOSED, and the RO1 LED is ON.
327 +* [0] The RO2 relay channel is OPEN, and the 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 no sensor is connected between DI1+ and DI1-.
332 +** DI1 is HIGH when a sensor is connected between DI1- and DI1+ and the sensor is ACTIVE.
333 +** DI1 LED is ON in both cases.
334 +* [0] DO3 - not used for LT-22222-L.
335 +* [1] DO2 channel output is LOW, and the DO2 LED is ON.
336 +* [0] DO1 channel output state:
337 +** DO1 is FLOATING when there is no load between DO1 and V+.
338 +** DO1 is HIGH when there is a load between DO1 and V+.
339 +** DO1 LED is OFF in both cases.
374 374  
375 -**LT22222-L:**
376 -
377 -* [1] DI2 channel is high input and DI2 LED is ON;
378 -* [0] DI1 channel is low input;
379 -
380 -* [0] DO3 channel output state
381 -** DO3 is float in case no load between DO3 and V+.;
382 -** DO3 is high in case there is load between DO3 and V+.
383 -** DO3 LED is off in both case
384 -* [1] DO2 channel output is low and DO2 LED is ON.
385 -* [0] DO1 channel output state
386 -** DO1 is float in case no load between DO1 and V+.;
387 -** DO1 is high in case there is load between DO1 and V+.
388 -** DO1 LED is off in both case
389 -
390 390  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
391 391  
392 392  
393 393  (((
394 -**For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
345 +**For LT-22222-L**: In this mode, the **DI1 and DI2** are used as counting pins.
395 395  )))
396 396  
397 397  (((
398 -Total : 11 bytes payload
349 +The uplink payload is 11 bytes long.
399 399  
400 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
401 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
351 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
352 +|(% 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**
402 402  |Value|COUNT1|COUNT2 |DIDORO*|(((
403 403  Reserve
404 404  )))|MOD
... ... @@ -405,40 +405,36 @@
405 405  )))
406 406  
407 407  (((
408 -(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
359 +(% style="color:#4f81bd" %)***DIDORO**(%%) is a combination of RO1, RO2, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
409 409  
410 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
411 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
412 -|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
361 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
362 +|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
363 +|RO1|RO2|FIRST|Reserve|Reserve|--DO3--|DO2|DO1
413 413  
414 -RO is for relay. ROx=1 : close，ROx=0 always open.
365 +* RO is for the relay. ROx=1: closed, ROx=0 always open.
415 415  )))
416 416  
417 -* FIRST: Indicate this is the first packet after join network.
418 -* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
368 +* FIRST: Indicates that this is the first packet after joining the network.
369 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or floating.
419 419  
420 420  (((
421 -(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
422 -)))
372 +(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L**
423 423  
424 -(((
425 425  
375 +)))
426 426  
427 -**To use counting mode, please run:**
377 +(((
378 +**To activate this mode, run the following AT commands:**
428 428  )))
429 429  
381 +(((
430 430  (% class="box infomessage" %)
431 431  (((
432 -(((
433 -(((
434 434  **AT+MOD=2**
435 -)))
436 436  
437 -(((
438 438  **ATZ**
439 439  )))
440 440  )))
441 -)))
442 442  
443 443  (((
444 444  
... ... @@ -449,17 +449,17 @@
449 449  (((
450 450  **For LT22222-L:**
451 451  
452 -(% style="color:blue" %)**AT+TRIG1=0,100**(%%)**  (set DI1 port to trigger on low level, valid signal is 100ms) **
399 +(% style="color:blue" %)**AT+TRIG1=0,100**(%%)** (sets the DI1 port to trigger on a LOW level. The valid signal duration is 100ms) **
453 453  
454 -(% style="color:blue" %)**AT+TRIG1=1,100**(%%)**  (set DI1 port to trigger on high level, valid signal is 100ms ) **
401 +(% style="color:blue" %)**AT+TRIG1=1,100**(%%)** (sets the DI1 port to trigger on a HIGH level. The valid signal duration is 100ms) **
455 455  
456 -(% style="color:blue" %)**AT+TRIG2=0,100**(%%)**  (set DI2 port to trigger on low level, valid signal is 100ms) **
403 +(% style="color:blue" %)**AT+TRIG2=0,100**(%%)** (sets the DI2 port to trigger on a LOW level. The valid signal duration is 100ms) **
457 457  
458 -(% style="color:blue" %)**AT+TRIG2=1,100**(%%)**  (set DI2 port to trigger on high level, valid signal is 100ms ) **
405 +(% style="color:blue" %)**AT+TRIG2=1,100**(%%)** (sets the DI2 port to trigger on a HIGH level. The valid signal duration is 100ms) **
459 459  
460 -(% style="color:blue" %)**AT+SETCNT=1,60**(%%)**   (Set COUNT1 value to 60)**
407 +(% style="color:blue" %)**AT+SETCNT=1,60**(%%)** (sets the COUNT1 value to 60)**
461 461  
462 -(% style="color:blue" %)**AT+SETCNT=2,60**(%%)**   (Set COUNT2 value to 60)**
409 +(% style="color:blue" %)**AT+SETCNT=2,60 **(%%)**(sets the COUNT2 value to 60)**
463 463  )))
464 464  
465 465  
... ... @@ -466,10 +466,10 @@
466 466  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
467 467  
468 468  
469 -**LT22222-L**: This mode the DI1 is used as a counting pin.
416 +**LT22222-L**: In this mode, the DI1 is used as a counting pin.
470 470  
471 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
472 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
418 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
419 +|(% 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**
473 473  |Value|COUNT1|(((
474 474  ACI1 Current
475 475  )))|(((
... ... @@ -477,41 +477,39 @@
477 477  )))|DIDORO*|Reserve|MOD
478 478  
479 479  (((
480 -(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
427 +(% style="color:#4f81bd" %)***DIDORO**(%%) is a combination of RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
481 481  
482 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
483 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
484 -|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
429 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
430 +|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
431 +|RO1|RO2|FIRST|Reserve|Reserve|--DO3--|DO2|DO1
485 485  )))
486 486  
487 -* RO is for relay. ROx=1 : close，ROx=0 always open.
488 -* FIRST: Indicate this is the first packet after join network.
489 -* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
434 +* RO is for the relay. ROx=1: closed, ROx=0 always open.
435 +* FIRST: Indicates that this is the first packet after joining the network.
436 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or floating.
490 490  
491 491  (((
492 -(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
439 +(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
493 493  )))
494 494  
495 495  
496 496  (((
497 -**To use counting mode, please run:**
444 +**To activate this mode, run the following AT commands:**
498 498  )))
499 499  
447 +(((
500 500  (% class="box infomessage" %)
501 501  (((
502 -(((
503 -(((
504 504  **AT+MOD=3**
505 -)))
506 506  
507 -(((
508 508  **ATZ**
509 509  )))
510 510  )))
511 -)))
512 512  
513 513  (((
514 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
457 +AT Commands for counting:
458 +
459 +The AT Commands for counting are similar to the [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]]s.
515 515  )))
516 516  
517 517  
... ... @@ -519,14 +519,14 @@
519 519  
520 520  
521 521  (((
522 -**LT22222-L**: This mode the DI1 is used as a counting pin.
467 +**LT22222-L**: In this mode, the DI1 is used as a counting pin.
523 523  )))
524 524  
525 525  (((
526 -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.
471 +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.
527 527  
528 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
529 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
473 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
474 +|(% 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**
530 530  |Value|COUNT1|AVI1 Counting|DIDORO*|(((
531 531  Reserve
532 532  )))|MOD
... ... @@ -533,55 +533,50 @@
533 533  )))
534 534  
535 535  (((
536 -(% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
481 +(% style="color:#4f81bd" %)**DIDORO **(%%)is a combination of RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
537 537  
538 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
539 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
540 -|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
483 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
484 +|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
485 +|RO1|RO2|FIRST|Reserve|Reserve|--DO3--|DO2|DO1
541 541  )))
542 542  
543 -* RO is for relay. ROx=1 : close，ROx=0 always open.
544 -* FIRST: Indicate this is the first packet after join network.
545 -* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
488 +* RO is for the relay. ROx=1: closed, ROx=0 always open.
489 +* FIRST: Indicates that this is the first packet after joining the network.
490 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or floating.
546 546  
547 547  (((
548 -(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
549 -)))
493 +(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
550 550  
551 -(((
552 552  
496 +)))
553 553  
554 -**To use this mode, please run:**
498 +(((
499 +**To activate this mode, run the following AT commands:**
555 555  )))
556 556  
502 +(((
557 557  (% class="box infomessage" %)
558 558  (((
559 -(((
560 -(((
561 561  **AT+MOD=4**
562 -)))
563 563  
564 -(((
565 565  **ATZ**
566 566  )))
567 567  )))
568 -)))
569 569  
570 -
571 571  (((
572 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
512 +Other AT Commands for counting are similar to the [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]]s.
573 573  )))
574 574  
575 575  (((
576 -**Plus below command for AVI1 Counting:**
516 +**In addition to that, below are the commands for AVI1 Counting:**
577 577  
578 -(% style="color:blue" %)**AT+SETCNT=3,60**(%%)**  (set AVI Count to 60)**
518 +(% style="color:blue" %)**AT+SETCNT=3,60**(%%)**  (Sets AVI Count to 60)**
579 579  
580 580  (% style="color:blue" %)**AT+VOLMAX=20000**(%%)**  (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
581 581  
582 582  (% style="color:blue" %)**AT+VOLMAX=20000,0**(%%)**  (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
583 583  
584 -(% style="color:blue" %)**AT+VOLMAX=20000,1**(%%)**  (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
524 +(% style="color:blue" %)**AT+VOLMAX=20000,1**(%%)**  (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
585 585  )))
586 586  
587 587  
... ... @@ -588,10 +588,10 @@
588 588  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
589 589  
590 590  
591 -**LT22222-L**: This mode the DI1 is used as a counting pin.
531 +**LT22222-L**: In this mode, the DI1 is used as a counting pin.
592 592  
593 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
594 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
533 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
534 +|(% 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**
595 595  |Value|(((
596 596  AVI1 voltage
597 597  )))|(((
... ... @@ -603,44 +603,38 @@
603 603  )))|MOD
604 604  
605 605  (((
606 -(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
546 +(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination of RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1, for a total of 1 byte, as shown below.
607 607  
608 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
609 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
548 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
549 +|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
610 610  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
611 611  )))
612 612  
613 -* RO is for relay. ROx=1 : close，ROx=0 always open.
614 -* FIRST: Indicate this is the first packet after join network.
553 +* RO is for the relay. ROx=1: closed, ROx=0 always open.
554 +* FIRST: Indicates that this is the first packet after joining the network.
615 615  * (((
616 -DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
556 +DO is for reverse digital output. DOx=1: output low, DOx=0: high or floating.
617 617  )))
618 618  
619 619  (((
620 -(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
560 +(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
621 621  )))
622 622  
623 623  (((
624 -
625 -
626 -**To use this mode, please run:**
564 +**To activate this mode, run the following AT commands:**
627 627  )))
628 628  
567 +(((
629 629  (% class="box infomessage" %)
630 630  (((
631 -(((
632 -(((
633 633  **AT+MOD=5**
634 -)))
635 635  
636 -(((
637 637  **ATZ**
638 638  )))
639 639  )))
640 -)))
641 641  
642 642  (((
643 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
577 +Other AT Commands for counting are similar to the [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]]s.
644 644  )))
645 645  
646 646  
... ... @@ -647,23 +647,22 @@
647 647  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
648 648  
649 649  
650 -(% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
584 +(% style="color:#4f81bd" %)**This mode is optional and intended for trigger purposes. It can operate together with other modes.**
651 651  
652 -For example, if user has configured below commands:
586 +For example, if you configured the following commands:
653 653  
654 654  * **AT+MOD=1 ** **~-~->**  The normal working mode
655 -* **AT+ADDMOD6=1**   **~-~->**  Enable trigger
589 +* **AT+ADDMOD6=1**   **~-~->**  Enable trigger mode
656 656  
657 -LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
591 +The LT-22222-L will continuously monitor AV1, AV2, AC1, and AC2 every 5 seconds. LT will send uplink packets in two cases:
658 658  
659 -1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN (% style="color:#4f81bd" %)**unconfirmed**(%%) data type
660 -1. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN (% style="color:#4f81bd" %)**CONFIRMED data type.**
593 +1. Periodically uplink (Based on TDC time). The payload is the same as in normal mode (MOD=1 for the commands above). These are (% style="color:#4f81bd" %)**unconfirmed**(%%) uplinks.
594 +1. Trigger uplink when the trigger condition is met. LT will send two packets in this case. The first uplink uses the payload specified in trigger mode (MOD=6). The second packet uses the normal mode payload (MOD=1 as set above). Both are (% style="color:#4f81bd" %)**CONFIRMED uplinks.**
661 661  
662 662  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
663 663  
598 +(% style="color:#4f81bd" %)**Trigger based on voltage**:
664 664  
665 -(% style="color:#4f81bd" %)**Trigger base on voltage**:
666 -
667 667  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
668 668  
669 669  
... ... @@ -674,9 +674,8 @@
674 674  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
675 675  
676 676  
610 +(% style="color:#4f81bd" %)**Trigger based on current**:
677 677  
678 -(% style="color:#4f81bd" %)**Trigger base on current**:
679 -
680 680  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
681 681  
682 682  
... ... @@ -685,11 +685,10 @@
685 685  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
686 686  
687 687  
620 +(% style="color:#4f81bd" %)**Trigger based on DI status**:
688 688  
689 -(% style="color:#4f81bd" %)**Trigger base on DI status**:
622 +DI status triggers Flag.
690 690  
691 -DI status trigger Flag.
692 -
693 693  Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >
694 694  
695 695  
... ... @@ -730,10 +730,10 @@
730 730  
731 731  (% style="color:#4f81bd" %)**Trigger Settings Payload Explanation:**
732 732  
733 -MOD6 Payload : total 11 bytes payload
664 +MOD6 Payload: total 11 bytes payload
734 734  
735 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
736 -|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**6**|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**1**
666 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
667 +|(% style="background-color:#4f81bd; color:white; width:60px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:69px" %)**1**|(% style="background-color:#4f81bd; color:white; width:69px" %)**1**|(% style="background-color:#4f81bd; color:white; width:109px" %)**1**|(% style="background-color:#4f81bd; color:white; width:49px" %)**6**|(% style="background-color:#4f81bd; color:white; width:109px" %)**1**|(% style="background-color:#4f81bd; color:white; width:50px" %)**1**
737 737  |Value|(((
738 738  TRI_A FLAG
739 739  )))|(((
... ... @@ -744,9 +744,9 @@
744 744  MOD(6)
745 745  )))
746 746  
747 -(% style="color:#4f81bd" %)**TRI FLAG1**(%%) is a combination to show if trigger is set for this part. Totally 1byte as below
678 +(% style="color:#4f81bd" %)**TRI FLAG1**(%%) is a combination to show if the trigger is set for this part. Totally 1byte as below
748 748  
749 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
680 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
750 750  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
751 751  |(((
752 752  AV1_LOW
... ... @@ -775,7 +775,7 @@
775 775  
776 776  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
777 777  
778 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
709 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
779 779  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
780 780  |(((
781 781  AV1_LOW
... ... @@ -804,7 +804,7 @@
804 804  
805 805  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
806 806  
807 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
738 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
808 808  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
809 809  |N/A|N/A|N/A|N/A|DI2_STATUS|DI2_FLAG|DI1_STATUS|DI1_FLAG
810 810  
... ... @@ -1061,7 +1061,7 @@
1061 1061  01: Low,  00: High ,  11: No action
1062 1062  
1063 1063  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1064 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO3**
995 +|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**DO1**|(% style="background-color:#4f81bd; color:white" %)**DO2**|(% style="background-color:#4f81bd; color:white" %)**DO3**
1065 1065  |02  01  00  11|Low|High|No Action
1066 1066  |02  00  11  01|High|No Action|Low
1067 1067  |02  11  01  00|No Action|Low|High
... ... @@ -1104,7 +1104,7 @@
1104 1104  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1105 1105  
1106 1106  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1107 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1038 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1108 1108  |0x01|DO1 set to low
1109 1109  |0x00|DO1 set to high
1110 1110  |0x11|DO1 NO Action
... ... @@ -1112,7 +1112,7 @@
1112 1112  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1113 1113  
1114 1114  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1115 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1046 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1116 1116  |0x01|DO2 set to low
1117 1117  |0x00|DO2 set to high
1118 1118  |0x11|DO2 NO Action
... ... @@ -1120,7 +1120,7 @@
1120 1120  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1121 1121  
1122 1122  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1123 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1054 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1124 1124  |0x01|DO3 set to low
1125 1125  |0x00|DO3 set to high
1126 1126  |0x11|DO3 NO Action
... ... @@ -1157,7 +1157,7 @@
1157 1157  
1158 1158  
1159 1159  
1160 -==== 3.4.2. 14 Relay ~-~- Control Relay Output RO1/RO2 ====
1091 +==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1161 1161  
1162 1162  
1163 1163  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1175,10 +1175,10 @@
1175 1175  )))
1176 1176  
1177 1177  (((
1178 -01: Close ,  00: Open , 11: No action
1109 +00: Closed ,  01: Open , 11: No action
1179 1179  
1180 1180  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1181 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO2**
1112 +|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1182 1182  |03  00  11|Open|No Action
1183 1183  |03  01  11|Close|No Action
1184 1184  |03  11  00|No Action|Open
... ... @@ -1297,7 +1297,7 @@
1297 1297  
1298 1298  
1299 1299  
1300 -==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1231 +==== 3.4.2.19 Counting ~-~- Change counting mode to save time ====
1301 1301  
1302 1302  
1303 1303  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1418,75 +1418,91 @@
1418 1418  [[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"]]
1419 1419  
1420 1420  
1421 -== 3.5 Integrate with Mydevice ==
1352 +== 3.5 Integrating with ThingsEye.io ==
1422 1422  
1354 +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.
1423 1423  
1424 -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:
1356 +=== 3.5.1 Configuring The Things Stack Sandbox ===
1425 1425  
1426 -(((
1427 -(% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the network at this time.
1428 -)))
1358 +* Go to your Application and select MQTT under Integrations.
1359 +* In the Connection credentials section, under Username, The Thins Stack displays an auto-generated username. You can use it or provide a new one.
1360 +* For the Password, click the Generate new API key button to generate a password. You can see it by clicking on the eye button.
1429 1429  
1430 -(((
1431 -(% 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:
1362 +[[image:tts-mqtt-integration.png||height="625" width="1000"]]
1432 1432  
1433 -
1434 -)))
1364 +=== 3.5.2 Configuring ThingsEye.io ===
1435 1435  
1436 -[[image:image-20220719105525-1.png||height="377" width="677"]]
1366 +* Login to your thingsEye.io account.
1367 +* Under the Integrations center, click Integrations.
1368 +* Click the Add integration button (the button with the + symbol).
1437 1437  
1370 +[[image:thingseye-io-step-1.png||height="625" width="1000"]]
1438 1438  
1439 1439  
1440 -[[image:image-20220719110247-2.png||height="388" width="683"]]
1373 +On the Add integration page configure the following:
1441 1441  
1375 +Basic settings:
1442 1442  
1443 -(% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
1377 +* Select The Things Stack Community from the Integration type list.
1378 +* Enter a suitable name for your integration in the Name box or keep the default name.
1379 +* Click the Next button.
1444 1444  
1445 -(% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L) and add DevEUI.(% style="display:none" %)
1381 +[[image:thingseye-io-step-2.png||height="625" width="1000"]]
1446 1446  
1447 -Search under The things network
1383 +Uplink Data converter:
1448 1448  
1449 -[[image:1653356838789-523.png||height="337" width="740"]]
1385 +* Click the Create New button if it is not selected by default.
1386 +* Click the JavaScript button.
1387 +* Paste the uplink decoder function into the text area (first, delete the default code). The demo decoder function can be found here.
1388 +* Click the Next button.
1450 1450  
1390 +[[image:thingseye-io-step-3.png||height="625" width="1000"]]
1451 1451  
1392 +Downlink Data converter (this is an optional step):
1452 1452  
1453 -After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1394 +* Click the Create new button if it is not selected by default.
1395 +* Click the JavaScript button.
1396 +* Paste the downlink decoder function into the text area (first, delete the default code). The demo decoder function can be found here.
1397 +* Click the Next button.
1454 1454  
1455 -[[image:image-20220524094909-1.png||height="335" width="729"]]
1399 +[[image:thingseye-io-step-4.png||height="625" width="1000"]]
1456 1456  
1401 +Connection:
1457 1457  
1458 -[[image:image-20220524094909-2.png||height="337" width="729"]]
1403 +* Choose Region from the Host type.
1404 +* Enter the cluster of your The Things Stack in the Region textbox.
1405 +* 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.
1406 +* Click Check connection to test the connection. If the connection is successful, you can see the message saying Connected.
1407 +* Click the Add button.
1459 1459  
1409 +[[image:thingseye-io-step-5.png||height="625" width="1000"]]
1460 1460  
1461 -[[image:image-20220524094909-3.png||height="338" width="727"]]
1462 1462  
1412 +Your integration is added to the integrations list and it will display on the Integrations page.
1463 1463  
1464 -[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1414 +[[image:thingseye-io-step-6.png||height="625" width="1000"]]
1465 1465  
1466 1466  
1467 -[[image:image-20220524094909-5.png||height="341" width="734"]]
1417 +== 3.6 Interface Details ==
1468 1468  
1469 -
1470 -== 3.6 Interface Detail ==
1471 -
1472 1472  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1473 1473  
1474 1474  
1475 -Support NPN Type sensor
1422 +Support NPN-type sensor
1476 1476  
1477 1477  [[image:1653356991268-289.png]]
1478 1478  
1479 1479  
1480 -=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1427 +=== 3.6.2 Digital Input Ports: DI1/DI2 ( For LT-22222-L) ===
1481 1481  
1482 1482  
1483 1483  (((
1484 -The DI port of LT-22222-L can support **NPN** or **PNP** or **Dry Contact** output sensor.
1431 +The DI ports of the LT-22222-L can support **NPN**, **PNP**, or **dry contact** output sensors.
1485 1485  )))
1486 1486  
1487 1487  (((
1488 1488  (((
1489 -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.
1436 +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.
1490 1490  
1491 1491  
1492 1492  )))
... ... @@ -1496,7 +1496,7 @@
1496 1496  
1497 1497  (((
1498 1498  (((
1499 -When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1446 +(% 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.
1500 1500  )))
1501 1501  )))
1502 1502  
... ... @@ -1505,22 +1505,22 @@
1505 1505  )))
1506 1506  
1507 1507  (((
1508 -(% style="color:blue" %)**Example1**(%%): Connect to a Low active sensor.
1455 +(% style="color:#0000ff" %)**Example 1**(%%): Connecting to a low-active sensor.
1509 1509  )))
1510 1510  
1511 1511  (((
1512 -This type of sensor will output a low signal GND when active.
1459 +This type of sensor outputs a low (GND) signal when active.
1513 1513  )))
1514 1514  
1515 1515  * (((
1516 -Connect sensor's output to DI1-
1463 +Connect the sensor's output to DI1-
1517 1517  )))
1518 1518  * (((
1519 -Connect sensor's VCC to DI1+.
1466 +Connect the sensor's VCC to DI1+.
1520 1520  )))
1521 1521  
1522 1522  (((
1523 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1470 +When the sensor is active, the current between NEC2501 pin 1 and pin 2 will be：
1524 1524  )))
1525 1525  
1526 1526  (((
... ... @@ -1528,7 +1528,7 @@
1528 1528  )))
1529 1529  
1530 1530  (((
1531 -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.
1478 +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.
1532 1532  )))
1533 1533  
1534 1534  (((
... ... @@ -1536,22 +1536,22 @@
1536 1536  )))
1537 1537  
1538 1538  (((
1539 -(% style="color:blue" %)**Example2**(%%): Connect to a High active sensor.
1486 +(% style="color:#0000ff" %)**Example 2**(%%): Connecting to a high-active sensor.
1540 1540  )))
1541 1541  
1542 1542  (((
1543 -This type of sensor will output a high signal (example 24v) when active.
1490 +This type of sensor outputs a high signal (e.g., 24V) when active.
1544 1544  )))
1545 1545  
1546 1546  * (((
1547 -Connect sensor's output to DI1+
1494 +Connect the sensor's output to DI1+
1548 1548  )))
1549 1549  * (((
1550 -Connect sensor's GND DI1-.
1497 +Connect the sensor's GND DI1-.
1551 1551  )))
1552 1552  
1553 1553  (((
1554 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1501 +When the sensor is active, the current between NEC2501 pin1 and pin2 will be:
1555 1555  )))
1556 1556  
1557 1557  (((
... ... @@ -1559,7 +1559,7 @@
1559 1559  )))
1560 1560  
1561 1561  (((
1562 -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.
1509 +If **DI1+ = 24V**, the resulting current[[image:1653968155772-850.png||height="23" width="19"]] is 24mA, Therefore, the LT-22222-L will detect this high-active signal.
1563 1563  )))
1564 1564  
1565 1565  (((
... ... @@ -1567,22 +1567,22 @@
1567 1567  )))
1568 1568  
1569 1569  (((
1570 -(% style="color:blue" %)**Example3**(%%): Connect to a 220v high active sensor.
1517 +(% style="color:#0000ff" %)**Example 3**(%%): Connecting to a 220V high-active sensor.
1571 1571  )))
1572 1572  
1573 1573  (((
1574 -Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1521 +Assume that you want to monitor an active signal higher than 220V without damaging the photocoupler  
1575 1575  )))
1576 1576  
1577 1577  * (((
1578 -Connect sensor's output to DI1+ with a serial 50K resistor
1525 +Connect the sensor's output to DI1+ with a 50K resistor in series.
1579 1579  )))
1580 1580  * (((
1581 -Connect sensor's GND DI1-.
1528 +Connect the sensor's GND DI1-.
1582 1582  )))
1583 1583  
1584 1584  (((
1585 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1532 +When the sensor is active, the current between NEC2501 pin1 and pin2 will be:
1586 1586  )))
1587 1587  
1588 1588  (((
... ... @@ -1590,34 +1590,37 @@
1590 1590  )))
1591 1591  
1592 1592  (((
1593 -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.
1540 +If the sensor output is 220V, then [[image:1653968155772-850.png||height="23" width="19"]](% id="cke_bm_243359S" style="display:none" wfd-invisible="true" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K  = 4.3mA. Therefore, the LT-22222-L will be able to safely detect this high-active signal.
1594 1594  )))
1595 1595  
1596 1596  
1597 -(% style="color:blue" %)**Example4**(%%): Connect to Dry Contact sensor
1544 +(% style="color:blue" %)**Example4**(%%): Connecting to Dry Contact sensor
1598 1598  
1599 -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.
1546 +From the 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.
1600 1600  
1601 -To detect a Dry Contact, we can provide a power source to one pin of the Dry Contact. Below is a reference connection.
1548 +To detect a Dry Contact, you can supply a power source to one pin of the Dry Contact. Below is a reference circuit diagram.
1602 1602  
1603 1603  [[image:image-20230616235145-1.png]]
1604 1604  
1552 +(% style="color:blue" %)**Example5**(%%): Connecting to an Open Collector
1605 1605  
1554 +[[image:image-20240219115718-1.png]]
1606 1606  
1607 -=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1608 1608  
1557 +=== 3.6.3 Digital Output Ports: DO1/DO2 /DO3 ===
1609 1609  
1610 -(% style="color:blue" %)**NPN output**(%%): GND or Float. Max voltage can apply to output pin is 36v.
1611 1611  
1612 -(% style="color:red" %)**Note: DO pins go to float when device is power off.**
1560 +(% style="color:blue" %)**NPN output**(%%): GND or Float. The maximum voltage that can be applied to the output pin is 36V.
1613 1613  
1562 +(% style="color:red" %)**Note: The DO pins will float when the device is powered off.**
1563 +
1614 1614  [[image:1653357531600-905.png]]
1615 1615  
1616 1616  
1617 -=== 3.6.4 Analog Input Interface ===
1567 +=== 3.6.4 Analog Input Interfaces ===
1618 1618  
1619 1619  
1620 -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:
1570 +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:
1621 1621  
1622 1622  
1623 1623  (% style="color:blue" %)**AC2 = (IN2 voltage )/12**
... ... @@ -1624,14 +1624,14 @@
1624 1624  
1625 1625  [[image:1653357592296-182.png]]
1626 1626  
1627 -Example to connect a 4~~20mA sensor
1577 +Example: Connecting a 4~~20mA sensor
1628 1628  
1629 -We take the wind speed sensor as an example for reference only.
1579 +We will use the wind speed sensor as an example for reference only.
1630 1630  
1631 1631  
1632 1632  (% style="color:blue" %)**Specifications of the wind speed sensor:**
1633 1633  
1634 -(% style="color:red" %)**Red:  12~~24v**
1584 +(% style="color:red" %)**Red:  12~~24V**
1635 1635  
1636 1636  (% style="color:#ffc000" %)**Yellow:  4~~20mA**
1637 1637  
... ... @@ -1644,7 +1644,7 @@
1644 1644  [[image:1653357648330-671.png||height="155" width="733"]]
1645 1645  
1646 1646  
1647 -Example connected to a regulated power supply to measure voltage
1597 +Example: Connecting to a regulated power supply to measure voltage
1648 1648  
1649 1649  [[image:image-20230608101532-1.png||height="606" width="447"]]
1650 1650  
... ... @@ -1653,7 +1653,7 @@
1653 1653  [[image:image-20230608101722-3.png||height="102" width="1139"]]
1654 1654  
1655 1655  
1656 -(% style="color:blue; font-weight:bold" %)**Specifications of the regulated power**(%%) (% style="color:blue" %)**:**
1606 +(% style="color:blue; font-weight:bold" %)**Specifications of the regulated power supply**(% style="color:blue" %)**:**
1657 1657  
1658 1658  (% style="color:red" %)**Red:  12~~24v**
1659 1659  
... ... @@ -1664,9 +1664,9 @@
1664 1664  
1665 1665  
1666 1666  (((
1667 -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:
1617 +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:
1668 1668  
1669 -**Note**: RO pins go to Open(NO) when device is power off.
1619 +**Note**: The ROx pins will be in the Open (NO) state when the LT-22222-L is powered off.
1670 1670  )))
1671 1671  
1672 1672  [[image:image-20220524100215-9.png]]
... ... @@ -1678,12 +1678,9 @@
1678 1678  == 3.7 LEDs Indicators ==
1679 1679  
1680 1680  
1681 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1682 -|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**LEDs**|(% style="background-color:#d9e2f3; color:#0070c0; width:470px" %)**Feature**
1631 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1632 +|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1683 1683  |**PWR**|Always on if there is power
1684 -|**SYS**|(((
1685 -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.
1686 -)))
1687 1687  |**TX**|(((
1688 1688  (((
1689 1689  Device boot: TX blinks 5 times.
... ... @@ -1697,40 +1697,32 @@
1697 1697  Transmit a LoRa packet: TX blinks once
1698 1698  )))
1699 1699  )))
1700 -|**RX**|RX blinks once when receive a packet.
1701 -|**DO1**|
1702 -|**DO2**|
1703 -|**DO3**|
1704 -|**DI2**|(((
1705 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1647 +|**RX**|RX blinks once when receiving a packet.
1648 +|**DO1**|For LT-22222-L: ON when DO1 is low, OFF when DO1 is high
1649 +|**DO2**|For LT-22222-L: ON when DO2 is low, OFF when DO2 is high
1650 +|**DI1**|(((
1651 +For LT-22222-L: ON when DI1 is high, OFF when DI1 is low
1706 1706  )))
1707 1707  |**DI2**|(((
1708 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1654 +For LT-22222-L: ON when DI2 is high, OFF when DI2 is low
1709 1709  )))
1710 -|**DI2**|(((
1711 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1712 -)))
1713 -|**RO1**|
1714 -|**RO2**|
1656 +|**RO1**|For LT-22222-L: ON when RO1 is closed, OFF when RO1 is open
1657 +|**RO2**|For LT-22222-L: ON when RO2 is closed, OFF when RO2 is open
1715 1715  
1716 -= 4. Use AT Command =
1659 += 4. Using AT Command =
1717 1717  
1718 -== 4.1 Access AT Command ==
1661 +== 4.1 Connecting the LT-22222-L to a computer ==
1719 1719  
1720 1720  
1721 1721  (((
1722 -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.
1665 +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.
1723 1723  )))
1724 1724  
1725 -(((
1726 -
1727 -)))
1728 -
1729 1729  [[image:1653358238933-385.png]]
1730 1730  
1731 1731  
1732 1732  (((
1733 -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:
1672 +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:
1734 1734  )))
1735 1735  
1736 1736  [[image:1653358355238-883.png]]
... ... @@ -1737,10 +1737,12 @@
1737 1737  
1738 1738  
1739 1739  (((
1740 -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/]]
1679 +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/]]
1741 1741  )))
1742 1742  
1743 1743  (((
1683 +The following table lists all the AT commands related to the LT-22222-L, except for those used for switching between modes.
1684 +
1744 1744  AT+<CMD>?        : Help on <CMD>
1745 1745  )))
1746 1746  
... ... @@ -2044,8 +2044,6 @@
2044 2044  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
2045 2045  
2046 2046  **4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5.**
2047 -
2048 -
2049 2049  )))
2050 2050  
2051 2051  (((
... ... @@ -2052,9 +2052,6 @@
2052 2052  [[image:1653359097980-169.png||height="188" width="729"]]
2053 2053  )))
2054 2054  
2055 -(((
2056 -
2057 -)))
2058 2058  
2059 2059  === 4.2.3 Change to Class A ===
2060 2060  
... ... @@ -2062,17 +2062,18 @@
2062 2062  (((
2063 2063  (% style="color:blue" %)**If sensor JOINED:**
2064 2064  
2065 -(% style="background-color:#dcdcdc" %)**AT+CLASS=A
2066 -ATZ**
2001 +(% style="background-color:#dcdcdc" %)**AT+CLASS=A**
2002 +
2003 +(% style="background-color:#dcdcdc" %)**ATZ**
2067 2067  )))
2068 2068  
2069 2069  
2070 2070  = 5. Case Study =
2071 2071  
2072 -== 5.1 Counting how many objects pass in Flow Line ==
2009 +== 5.1 Counting how many objects pass through the flow Line ==
2073 2073  
2074 2074  
2075 -Reference Link: [[How to set up to count objects pass in flow line>>How to set up to count objects pass in flow line]]?
2012 +Reference Link: [[How to set up to setup counting for objects passing through the flow line>>How to set up to count objects pass in flow line]]?
2076 2076  
2077 2077  
2078 2078  = 6. FAQ =
... ... @@ -2080,26 +2080,26 @@
2080 2080  == 6.1 How to upgrade the image? ==
2081 2081  
2082 2082  
2083 -The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
2020 +The LT-22222-L I/O Controller is shipped with a 3.5mm cable, which is used to upload an image to LT in order to:
2084 2084  
2085 -* Support new features
2086 -* For bug fix
2022 +* Support new features.
2023 +* Fix bugs.
2087 2087  * Change LoRaWAN bands.
2088 2088  
2089 -Below shows the hardware connection for how to upload an image to the LT:
2026 +Below is the hardware connection setup for uploading an image to the LT:
2090 2090  
2091 2091  [[image:1653359603330-121.png]]
2092 2092  
2093 2093  
2094 2094  (((
2095 -(% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
2096 -(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACrbrDN0AqLHbBat0ViWx5Da/LT-22222-L/Firmware?dl=0&subfolder_nav_tracking=1]].
2097 -(% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
2032 +(% style="color:#0000ff" %)**Step 1**(%%)**:** Download the F[[lash Loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
2033 +(% style="color:#0000ff" %)**Step 2**(%%)**:** Download the [[LT Image files>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACrbrDN0AqLHbBat0ViWx5Da/LT-22222-L/Firmware?dl=0&subfolder_nav_tracking=1]].
2034 +(% style="color:#0000ff" %)**Step 3**(%%)**:** Open the Flash Loader and choose the correct COM port to update.
2098 2098  
2099 2099  
2100 2100  (((
2101 2101  (% style="color:blue" %)**For LT-22222-L**(%%):
2102 -Hold down the PRO button and then momentarily press the RST reset button and the (% style="color:red" %)**DO1 led**(%%) will change from OFF to ON. When (% style="color:red" %)**DO1 LED**(%%) is on, it means the device is in download mode.
2039 +Hold down the PRO button, then momentarily press the RST reset button. The (% style="color:red" %)**DO1 LED**(%%) will change from OFF to ON. When the (% style="color:red" %)**DO1 LED**(%%) is ON, it indicates that the device is in download mode.
2103 2103  )))
2104 2104  
2105 2105  
... ... @@ -2114,9 +2114,8 @@
2114 2114  [[image:image-20220524104033-15.png]]
2115 2115  
2116 2116  
2117 -(% style="color:red" %)**Notice**(%%): In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
2054 +(% style="color:red" %)**Note**(%%): If you have lost the programming cable, you can make one from a 3.5mm cable. The pin mapping is as follows:
2118 2118  
2119 -
2120 2120  [[image:1653360054704-518.png||height="186" width="745"]]
2121 2121  
2122 2122  
... ... @@ -2129,13 +2129,13 @@
2129 2129  )))
2130 2130  
2131 2131  (((
2132 -User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
2068 +You can follow the introductions on [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When downloading, select the required image file.
2133 2133  )))
2134 2134  
2135 2135  (((
2136 2136  
2137 2137  
2138 -== 6.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2074 +== 6.3 How to set up LT to work with a Single Channel Gateway, such as LG01/LG02? ==
2139 2139  
2140 2140  
2141 2141  )))
... ... @@ -2142,13 +2142,13 @@
2142 2142  
2143 2143  (((
2144 2144  (((
2145 -In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
2081 +In this case, you need to set the LT-33222-L to work in ABP mode and transmit on only one frequency.
2146 2146  )))
2147 2147  )))
2148 2148  
2149 2149  (((
2150 2150  (((
2151 -Assume we have a LG02 working in the frequency 868400000 now , below is the step.
2087 +Assume you have an LG02 working on the frequency 868400000. Below are the steps.
2152 2152  
2153 2153  
2154 2154  )))
... ... @@ -2155,7 +2155,7 @@
2155 2155  )))
2156 2156  
2157 2157  (((
2158 -(% style="color:blue" %)**Step1**(%%):  Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
2094 +(% style="color:#0000ff" %)**Step 1**(%%):  Log in to The Things Stack SANDBOX, create an ABP device in the application, and input the Network Session key (NwkSKey), App session key (AppSKey) of the device.
2159 2159  
2160 2160  
2161 2161  )))
... ... @@ -2180,13 +2180,21 @@
2180 2180  
2181 2181  (((
2182 2182  (% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2119 +
2183 2183  (% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2121 +
2184 2184  (% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2123 +
2185 2185  (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2125 +
2186 2186  (% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2127 +
2187 2187  (% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2129 +
2188 2188  (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2131 +
2189 2189  (% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2133 +
2190 2190  (% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
2191 2191  )))
2192 2192  
... ... @@ -2198,13 +2198,13 @@
2198 2198  [[image:1653360498588-932.png||height="485" width="726"]]
2199 2199  
2200 2200  
2201 -== 6.4 How to change the uplink interval？ ==
2145 +== 6.4 How to change the uplink interval? ==
2202 2202  
2203 2203  
2204 2204  Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/]]
2205 2205  
2206 2206  
2207 -== 6.5 Can I see counting event in Serial? ==
2151 +== 6.5 Can I see the counting event in Serial? ==
2208 2208  
2209 2209  
2210 2210  (((
... ... @@ -2211,10 +2211,10 @@
2211 2211  User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn't support AT+DEBUG. User can update to latest firmware first.
2212 2212  
2213 2213  
2214 -== 6.6 Can i use point to point communication for LT-22222-L? ==
2158 +== 6.6 Can I use point-to-point communication with LT-22222-L? ==
2215 2215  
2216 2216  
2217 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]  ，this is [[firmware>>https://github.com/dragino/LT-22222-L/releases]].
2161 +Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]. this is [[firmware>>https://github.com/dragino/LT-22222-L/releases]].
2218 2218  
2219 2219  
2220 2220  )))
... ... @@ -2247,6 +2247,12 @@
2247 2247  Firmware version needs to be no less than 1.6.0.
2248 2248  
2249 2249  
2194 +== 6.10 Why does the LT22222 always report 15.585V when measuring AVI? ==
2195 +
2196 +
2197 +It is likely that the GND is not connected during the measurement, or the wire connected to the GND is loose.
2198 +
2199 +
2250 2250  = 7. Trouble Shooting =
2251 2251  )))
2252 2252  
... ... @@ -2287,6 +2287,13 @@
2287 2287  )))
2288 2288  
2289 2289  
2240 +== 7.4 Why can LT22222 perform Uplink normally, but cannot receive Downlink? ==
2241 +
2242 +
2243 +The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue state.
2244 +Use this command to bring their counts back together: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
2245 +
2246 +
2290 2290  = 8. Order Info =
2291 2291  
2292 2292  
... ... @@ -2340,5 +2340,3 @@
2340 2340  * LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]
2341 2341  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2342 2342  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2343 -
2344 -
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