Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 122.11 >
edited by Xiaoling
on 2023/06/08 18:04
To version < 145.1 >
edited by Dilisi S
on 2024/10/31 22:01
>
Change comment: Uploaded new attachment "thingseye-io-step-1.png", version {1}

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LT-22222-L LoRa IO Controller User Manual
1 +LT-22222-L -- LoRa IO Controller User Manual
Author
... ... @@ -1,1 +1,1 @@
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/}}
... ... @@ -15,36 +15,30 @@
15 15  
16 16  = 1.Introduction =
17 17  
18 -== 1.1 What is LT Series I/O Controller ==
22 +== 1.1 What is the LT-22222-L I/O Controller? ==
19 19  
20 20  (((
21 -
22 -
23 23  (((
24 -The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
25 -)))
26 -)))
26 +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 the Dragino LG308 gateway to expand or create LoRaWAN coverage in your area.
48 48  )))
49 49  
50 50  (((
... ... @@ -53,166 +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 Degree, No Dew
74 74  
75 -* (((
76 -Idle: 4mA@12v
77 -)))
78 -* (((
79 -20dB Transmit: 34mA@12v
80 -)))
81 -)))
82 -
83 -(((
84 -
85 -
86 86  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
87 -)))
88 88  
89 -* (((
90 -2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
91 -)))
92 -* (((
93 -2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
94 -)))
95 -* (((
96 -2 x Relay Output (5A@250VAC / 30VDC)
97 -)))
98 -* (((
99 -2 x 0~~20mA Analog Input (res:0.01mA)
100 -)))
101 -* (((
102 -2 x 0~~30V Analog Input (res:0.01v)
103 -)))
104 -* (((
105 -Power Input 7~~ 24V DC. 
106 -)))
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 -
186 186  * Remote configure parameters via LoRa Downlink
187 -
188 188  * Firmware upgradable via program port
189 -
190 190  * Counting
191 191  
105 +== 1.4 Applications ==
192 192  
193 -
194 -== 1.4  Applications ==
195 -
196 -
197 197  * Smart Buildings & Home Automation
198 -
199 199  * Logistics and Supply Chain Management
200 -
201 201  * Smart Metering
202 -
203 203  * Smart Agriculture
204 -
205 205  * Smart Cities
206 -
207 207  * Smart Factory
208 208  
209 -
210 -
211 211  == 1.5 Hardware Variants ==
212 212  
213 213  
214 -(% border="1" style="background-color:#f2f2f2; width:500px" %)
215 -|(% 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**
216 216  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
217 217  (% style="text-align:center" %)
218 218  [[image:image-20230424115112-1.png||height="106" width="58"]]
... ... @@ -225,86 +225,124 @@
225 225  * 1 x Counting Port
226 226  )))
227 227  
131 += 2. Assembling the Device =
228 228  
133 +== 2.1 What is included in the package? ==
229 229  
230 -= 2. Power ON Device =
135 +The package includes the following items:
231 231  
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
232 232  
233 -(((
234 -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.
235 -)))
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.
236 236  
237 -(((
238 -PWR will on when device is properly powered.
144 +== 2.2 Terminals ==
239 239  
240 -
241 -)))
146 +Upper screw terminal block (from left to right):
242 242  
243 -[[image:1653297104069-180.png]]
148 +(% style="width:634px" %)
149 +|=(% style="width: 295px;" %)Terminal|=(% style="width: 338px;" %)Function
150 +|(% style="width:295px" %)GND|(% style="width:338px" %)Ground
151 +|(% style="width:295px" %)VIN|(% style="width:338px" %)Input Voltage
152 +|(% style="width:295px" %)AVI2|(% style="width:338px" %)Analog Voltage Input Terminal 2
153 +|(% style="width:295px" %)AVI1|(% style="width:338px" %)Analog Voltage Input Terminal 1
154 +|(% style="width:295px" %)ACI2|(% style="width:338px" %)Analog Current Input Terminal 2
155 +|(% style="width:295px" %)ACI1|(% style="width:338px" %)Analog Current Input Terminal 1
244 244  
157 +Lower screw terminal block (from left to right):
245 245  
246 -= 3. Operation Mode =
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
247 247  
248 -== 3.1 How it works? ==
172 +== 2.3 Powering ==
249 249  
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.
250 250  
251 -(((
252 -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. 
253 -)))
254 254  
255 -(((
256 -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.
257 -)))
177 +[[image:1653297104069-180.png]]
258 258  
259 259  
260 -== 3.2 Example to join LoRaWAN network ==
180 += 3. Operation Mode =
261 261  
182 +== 3.1 How does it work? ==
262 262  
263 -(((
264 -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. 
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.
265 265  
266 -
267 -)))
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. 
268 268  
269 -[[image:image-20220523172350-1.png||height="266" width="864"]]
188 +In case you can't set the root key and other identifiers in the network server and must use them from the server, you can use [[AT Commands>>||anchor="H4.UseATCommand"]] to configure them on the device.
270 270  
190 +== 3.2 Registering with a LoRaWAN network server ==
271 271  
272 -(((
273 -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:
192 +The diagram below shows how the LT-22222-L connects to a typical LoRaWAN network.
274 274  
275 -
276 -)))
194 +[[image:image-20220523172350-1.png||height="266" width="864"]]
277 277  
278 -(((
279 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LT IO controller.
280 -)))
196 +=== 3.2.1 Prerequisites ===
281 281  
282 -(((
283 -Each LT is shipped with a sticker with the default device EUI as below:
284 -)))
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.
285 285  
286 286  [[image:image-20230425173427-2.png||height="246" width="530"]]
287 287  
202 +The following subsections explain how to register the LT-22222-L with different LoRaWAN network server providers.
288 288  
289 -Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
204 +=== 3.2.2 The Things Stack Sandbox (TTSS) ===
290 290  
291 -**Add APP EUI in the application.**
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:
292 292  
293 -[[image:1653297955910-247.png||height="321" width="716"]]
210 +==== Using the LoRaWAN Device Repository: ====
294 294  
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.
295 295  
296 -**Add APP KEY and DEV EUI**
218 +[[image:lt-22222-l-dev-repo-reg-p1.png||height="625" width="1000"]]
297 297  
298 -[[image:1653298023685-319.png]]
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.
299 299  
227 +[[image:lt-22222-l-dev-repo-reg-p2.png||height="625" width="1000"]]
300 300  
229 +==== Entering device information manually: ====
301 301  
302 -(((
303 -(% 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.
231 +* On the **Register end device** page:
232 +** Select the **Enter end device specified manually** option.
233 +** Select the **Frequency plan** that matches with your device.
234 +** Select the **LoRaWAN version**.
235 +** Select the **Regional Parameters version**.
236 +** Click **Show advanced activation, LoRaWAN class and cluster settings** option.
237 +** Select **Over the air activation (OTAA)** option under **Activation mode**
238 +** Select **Class C (Continuous)** from the **Additional LoRaWAN class capabilities**.
239 +** Enter **AppEUI** in the **JoinEUI** field and click **Confirm** button.
240 +** Enter **DevEUI** in the **DevEUI** field.
241 +** Enter **AppKey** in the **AppKey** field.
242 +** In the **End device ID** field, enter a unique name within this application for your LT-22222-N.
243 +** Under **After registration**, select the **View registered end device** option.
304 304  
305 -
306 -)))
245 +==== Joining ====
307 307  
247 +Click on **Live Data** in the left navigation. Then, power on the device, and it will join The Things Stack Sandbox. You can see the join request, join accept, followed by uplink messages form the device showing in the Live Data panel.
248 +
308 308  [[image:1653298044601-602.png||height="405" width="709"]]
309 309  
310 310  
... ... @@ -325,8 +325,6 @@
325 325  
326 326  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
327 327  
328 -
329 -
330 330  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
331 331  
332 332  
... ... @@ -333,8 +333,8 @@
333 333  (((
334 334  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default. (% style="display:none" %)
335 335  
336 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
337 -|(% 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**
275 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
276 +|(% 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**
338 338  |Value|(((
339 339  AVI1 voltage
340 340  )))|(((
... ... @@ -351,12 +351,12 @@
351 351  (((
352 352  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
353 353  
354 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
293 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
355 355  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
356 356  |RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
357 357  )))
358 358  
359 -* RO is for relay. ROx=1 : close，ROx=0 always open.
298 +* RO is for relay. ROx=1 : close, ROx=0 always open.
360 360  * DI is for digital input. DIx=1: high or float, DIx=0: low.
361 361  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
362 362  
... ... @@ -367,7 +367,7 @@
367 367  
368 368  **The value for the interface is:  **
369 369  
370 -AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
309 +AVI1 channel voltage is 0x04AB/1000=1195(DEC)/1000=1.195V
371 371  
372 372  AVI2 channel voltage is 0x04AC/1000=1.196V
373 373  
... ... @@ -395,8 +395,6 @@
395 395  ** DO1 is high in case there is load between DO1 and V+.
396 396  ** DO1 LED is off in both case
397 397  
398 -
399 -
400 400  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
401 401  
402 402  
... ... @@ -407,8 +407,8 @@
407 407  (((
408 408  Total : 11 bytes payload
409 409  
410 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
411 -|(% 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**
347 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
348 +|(% 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**
412 412  |Value|COUNT1|COUNT2 |DIDORO*|(((
413 413  Reserve
414 414  )))|MOD
... ... @@ -417,11 +417,11 @@
417 417  (((
418 418  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
419 419  
420 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
357 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
421 421  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
422 422  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
423 423  
424 -RO is for relay. ROx=1 : close，ROx=0 always open.
361 +RO is for relay. ROx=1 : close , ROx=0 always open.
425 425  )))
426 426  
427 427  * FIRST: Indicate this is the first packet after join network.
... ... @@ -429,26 +429,22 @@
429 429  
430 430  (((
431 431  (% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
432 -)))
433 433  
434 -(((
435 435  
371 +)))
436 436  
373 +(((
437 437  **To use counting mode, please run:**
438 438  )))
439 439  
377 +(((
440 440  (% class="box infomessage" %)
441 441  (((
442 -(((
443 -(((
444 444  **AT+MOD=2**
445 -)))
446 446  
447 -(((
448 448  **ATZ**
449 449  )))
450 450  )))
451 -)))
452 452  
453 453  (((
454 454  
... ... @@ -478,8 +478,8 @@
478 478  
479 479  **LT22222-L**: This mode the DI1 is used as a counting pin.
480 480  
481 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
482 -|(% 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**
414 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
415 +|(% 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**
483 483  |Value|COUNT1|(((
484 484  ACI1 Current
485 485  )))|(((
... ... @@ -489,12 +489,12 @@
489 489  (((
490 490  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
491 491  
492 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
425 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
493 493  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
494 494  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
495 495  )))
496 496  
497 -* RO is for relay. ROx=1 : close，ROx=0 always open.
430 +* RO is for relay. ROx=1 : close, ROx=0 always open.
498 498  * FIRST: Indicate this is the first packet after join network.
499 499  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
500 500  
... ... @@ -507,18 +507,14 @@
507 507  **To use counting mode, please run:**
508 508  )))
509 509  
443 +(((
510 510  (% class="box infomessage" %)
511 511  (((
512 -(((
513 -(((
514 514  **AT+MOD=3**
515 -)))
516 516  
517 -(((
518 518  **ATZ**
519 519  )))
520 520  )))
521 -)))
522 522  
523 523  (((
524 524  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -535,8 +535,8 @@
535 535  (((
536 536  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.
537 537  
538 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
539 -|(% 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**
467 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
468 +|(% 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**
540 540  |Value|COUNT1|AVI1 Counting|DIDORO*|(((
541 541  Reserve
542 542  )))|MOD
... ... @@ -545,39 +545,34 @@
545 545  (((
546 546  (% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
547 547  
548 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
477 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
549 549  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
550 550  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
551 551  )))
552 552  
553 -* RO is for relay. ROx=1 : close，ROx=0 always open.
482 +* RO is for relay. ROx=1 : close, ROx=0 always open.
554 554  * FIRST: Indicate this is the first packet after join network.
555 555  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
556 556  
557 557  (((
558 558  (% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
559 -)))
560 560  
561 -(((
562 562  
490 +)))
563 563  
492 +(((
564 564  **To use this mode, please run:**
565 565  )))
566 566  
496 +(((
567 567  (% class="box infomessage" %)
568 568  (((
569 -(((
570 -(((
571 571  **AT+MOD=4**
572 -)))
573 573  
574 -(((
575 575  **ATZ**
576 576  )))
577 577  )))
578 -)))
579 579  
580 -
581 581  (((
582 582  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
583 583  )))
... ... @@ -600,8 +600,8 @@
600 600  
601 601  **LT22222-L**: This mode the DI1 is used as a counting pin.
602 602  
603 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
604 -|(% 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**
527 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
528 +|(% 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**
605 605  |Value|(((
606 606  AVI1 voltage
607 607  )))|(((
... ... @@ -615,12 +615,12 @@
615 615  (((
616 616  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
617 617  
618 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
542 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
619 619  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
620 620  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
621 621  )))
622 622  
623 -* RO is for relay. ROx=1 : close，ROx=0 always open.
547 +* RO is for relay. ROx=1 : close, ROx=0 always open.
624 624  * FIRST: Indicate this is the first packet after join network.
625 625  * (((
626 626  DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
... ... @@ -631,23 +631,17 @@
631 631  )))
632 632  
633 633  (((
634 -
635 -
636 636  **To use this mode, please run:**
637 637  )))
638 638  
561 +(((
639 639  (% class="box infomessage" %)
640 640  (((
641 -(((
642 -(((
643 643  **AT+MOD=5**
644 -)))
645 645  
646 -(((
647 647  **ATZ**
648 648  )))
649 649  )))
650 -)))
651 651  
652 652  (((
653 653  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -742,8 +742,8 @@
742 742  
743 743  MOD6 Payload : total 11 bytes payload
744 744  
745 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
746 -|(% 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**
663 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
664 +|(% 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**
747 747  |Value|(((
748 748  TRI_A FLAG
749 749  )))|(((
... ... @@ -756,7 +756,7 @@
756 756  
757 757  (% style="color:#4f81bd" %)**TRI FLAG1**(%%) is a combination to show if trigger is set for this part. Totally 1byte as below
758 758  
759 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
677 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
760 760  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
761 761  |(((
762 762  AV1_LOW
... ... @@ -785,7 +785,7 @@
785 785  
786 786  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
787 787  
788 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
706 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
789 789  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
790 790  |(((
791 791  AV1_LOW
... ... @@ -814,7 +814,7 @@
814 814  
815 815  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
816 816  
817 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
735 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
818 818  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
819 819  |N/A|N/A|N/A|N/A|DI2_STATUS|DI2_FLAG|DI1_STATUS|DI1_FLAG
820 820  
... ... @@ -862,8 +862,6 @@
862 862  
863 863  * (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
864 864  
865 -
866 -
867 867  === 3.4.1 Common Commands ===
868 868  
869 869  
... ... @@ -913,7 +913,6 @@
913 913  
914 914  * (% style="color:#037691" %)**AT Command:**(%%) There is no AT Command to poll uplink
915 915  
916 -
917 917  * (% style="color:#037691" %)**Downlink Payload (prefix 0x08):**
918 918  
919 919  (% style="color:blue" %)**0x08 FF  **(%%)** **~/~/ Poll an uplink
... ... @@ -1018,7 +1018,6 @@
1018 1018  
1019 1019  * (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+ACLIM**
1020 1020  
1021 -
1022 1022  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 01 )**
1023 1023  
1024 1024  (% style="color:blue" %)**0x AA 01 aa bb cc dd ee ff gg hh        ** (%%) ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -1032,7 +1032,6 @@
1032 1032  
1033 1033  * (% style="color:#037691" %)**AT Command**(%%): (% style="color:blue" %)**AT+AVLIM    **(%%)** See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
1034 1034  
1035 -
1036 1036  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 00 )**
1037 1037  
1038 1038  (% style="color:blue" %)**0x AA 00 aa bb cc dd ee ff gg hh    ** (%%) ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -1046,7 +1046,6 @@
1046 1046  
1047 1047  * (% style="color:#037691" %)**AT Command**(%%): (% style="color:blue" %)**AT+ATDC=5        ** ~/~/ (%%)Device won't response the second trigger within 5 minute after the first trigger.
1048 1048  
1049 -
1050 1050  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAC )**
1051 1051  
1052 1052  (% style="color:blue" %)**0x AC aa bb   **(%%) ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
... ... @@ -1076,8 +1076,8 @@
1076 1076  (((
1077 1077  01: Low,  00: High ,  11: No action
1078 1078  
1079 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1080 -|(% 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**
991 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
992 +|(% 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**
1081 1081  |02  01  00  11|Low|High|No Action
1082 1082  |02  00  11  01|High|No Action|Low
1083 1083  |02  11  01  00|No Action|Low|High
... ... @@ -1120,7 +1120,7 @@
1120 1120  (% style="color:#4f81bd" %)**Third 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**
1035 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1124 1124  |0x01|DO1 set to low
1125 1125  |0x00|DO1 set to high
1126 1126  |0x11|DO1 NO Action
... ... @@ -1128,7 +1128,7 @@
1128 1128  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1129 1129  
1130 1130  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1131 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1043 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1132 1132  |0x01|DO2 set to low
1133 1133  |0x00|DO2 set to high
1134 1134  |0x11|DO2 NO Action
... ... @@ -1136,7 +1136,7 @@
1136 1136  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1137 1137  
1138 1138  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1139 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1051 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1140 1140  |0x01|DO3 set to low
1141 1141  |0x00|DO3 set to high
1142 1142  |0x11|DO3 NO Action
... ... @@ -1173,7 +1173,7 @@
1173 1173  
1174 1174  
1175 1175  
1176 -==== 3.4.2. 14 Relay ~-~- Control Relay Output RO1/RO2 ====
1088 +==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1177 1177  
1178 1178  
1179 1179  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1191,10 +1191,10 @@
1191 1191  )))
1192 1192  
1193 1193  (((
1194 -01: Close ,  00: Open , 11: No action
1106 +00: Close ,  01: Open , 11: No action
1195 1195  
1196 1196  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1197 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO2**
1109 +|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1198 1198  |03  00  11|Open|No Action
1199 1199  |03  01  11|Close|No Action
1200 1200  |03  11  00|No Action|Open
... ... @@ -1278,7 +1278,6 @@
1278 1278  
1279 1279  * (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+VOLMAX   ** (%%)~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1280 1280  
1281 -
1282 1282  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA5):**
1283 1283  
1284 1284  (% style="color:blue" %)**0xA5 aa bb cc   ** (%%)~/~/ Same as AT+VOLMAX=(aa bb),cc
... ... @@ -1306,9 +1306,8 @@
1306 1306  
1307 1307  Clear counting for counting mode
1308 1308  
1309 -* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+CLRCOUNT  **(%%) ~/~/ clear all counting
1220 +* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+CLRCOUNT         **(%%) ~/~/ clear all counting
1310 1310  
1311 -
1312 1312  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA6):**
1313 1313  
1314 1314  (% style="color:blue" %)**0x A6 01    ** (%%)~/~/ clear all counting
... ... @@ -1467,7 +1467,6 @@
1467 1467  [[image:1653356838789-523.png||height="337" width="740"]]
1468 1468  
1469 1469  
1470 -
1471 1471  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1472 1472  
1473 1473  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1499,12 +1499,12 @@
1499 1499  
1500 1500  
1501 1501  (((
1502 -The DI port of LT-22222-L can support NPN or PNP output sensor.
1411 +The DI port of LT-22222-L can support **NPN** or **PNP** or **Dry Contact** output sensor.
1503 1503  )))
1504 1504  
1505 1505  (((
1506 1506  (((
1507 -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. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high.
1416 +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.
1508 1508  
1509 1509  
1510 1510  )))
... ... @@ -1612,6 +1612,19 @@
1612 1612  )))
1613 1613  
1614 1614  
1524 +(% style="color:blue" %)**Example4**(%%): Connect to Dry Contact sensor
1525 +
1526 +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.
1527 +
1528 +To detect a Dry Contact, we can provide a power source to one pin of the Dry Contact. Below is a reference connection.
1529 +
1530 +[[image:image-20230616235145-1.png]]
1531 +
1532 +(% style="color:blue" %)**Example5**(%%): Connect to Open Colleactor
1533 +
1534 +[[image:image-20240219115718-1.png]]
1535 +
1536 +
1615 1615  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1616 1616  
1617 1617  
... ... @@ -1686,12 +1686,9 @@
1686 1686  == 3.7 LEDs Indicators ==
1687 1687  
1688 1688  
1689 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1690 -|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**LEDs**|(% style="background-color:#d9e2f3; color:#0070c0; width:470px" %)**Feature**
1611 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1612 +|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1691 1691  |**PWR**|Always on if there is power
1692 -|**SYS**|(((
1693 -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.
1694 -)))
1695 1695  |**TX**|(((
1696 1696  (((
1697 1697  Device boot: TX blinks 5 times.
... ... @@ -1706,23 +1706,17 @@
1706 1706  )))
1707 1707  )))
1708 1708  |**RX**|RX blinks once when receive a packet.
1709 -|**DO1**|
1710 -|**DO2**|
1711 -|**DO3**|
1712 -|**DI2**|(((
1713 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1628 +|**DO1**|For LT-22222-L: ON when DO1 is low, LOW when DO1 is high
1629 +|**DO2**|For LT-22222-L: ON when DO2 is low, LOW when DO2 is high
1630 +|**DI1**|(((
1631 +For LT-22222-L: ON when DI1 is high, LOW when DI1 is low
1714 1714  )))
1715 1715  |**DI2**|(((
1716 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1634 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1717 1717  )))
1718 -|**DI2**|(((
1719 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1720 -)))
1721 -|**RO1**|
1722 -|**RO2**|
1636 +|**RO1**|For LT-22222-L: ON when RO1 is closed, LOW when RO1 is open
1637 +|**RO2**|For LT-22222-L: ON when RO2 is closed, LOW when RO2 is open
1723 1723  
1724 -
1725 -
1726 1726  = 4. Use AT Command =
1727 1727  
1728 1728  == 4.1 Access AT Command ==
... ... @@ -1732,10 +1732,6 @@
1732 1732  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.
1733 1733  )))
1734 1734  
1735 -(((
1736 -
1737 -)))
1738 -
1739 1739  [[image:1653358238933-385.png]]
1740 1740  
1741 1741  
... ... @@ -2054,8 +2054,6 @@
2054 2054  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
2055 2055  
2056 2056  **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.**
2057 -
2058 -
2059 2059  )))
2060 2060  
2061 2061  (((
... ... @@ -2062,9 +2062,6 @@
2062 2062  [[image:1653359097980-169.png||height="188" width="729"]]
2063 2063  )))
2064 2064  
2065 -(((
2066 -
2067 -)))
2068 2068  
2069 2069  === 4.2.3 Change to Class A ===
2070 2070  
... ... @@ -2072,8 +2072,9 @@
2072 2072  (((
2073 2073  (% style="color:blue" %)**If sensor JOINED:**
2074 2074  
2075 -(% style="background-color:#dcdcdc" %)**AT+CLASS=A
2076 -ATZ**
1979 +(% style="background-color:#dcdcdc" %)**AT+CLASS=A**
1980 +
1981 +(% style="background-color:#dcdcdc" %)**ATZ**
2077 2077  )))
2078 2078  
2079 2079  
... ... @@ -2103,7 +2103,7 @@
2103 2103  
2104 2104  (((
2105 2105  (% 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]].
2106 -(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AADKXQ2v5ZT-S3sxdmbvE7UAa/LT-22222-L/image?dl=0&subfolder_nav_tracking=1]].
2011 +(% 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]].
2107 2107  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
2108 2108  
2109 2109  
... ... @@ -2126,7 +2126,6 @@
2126 2126  
2127 2127  (% 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:
2128 2128  
2129 -
2130 2130  [[image:1653360054704-518.png||height="186" width="745"]]
2131 2131  
2132 2132  
... ... @@ -2190,13 +2190,21 @@
2190 2190  
2191 2191  (((
2192 2192  (% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2097 +
2193 2193  (% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2099 +
2194 2194  (% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2101 +
2195 2195  (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2103 +
2196 2196  (% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2105 +
2197 2197  (% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2107 +
2198 2198  (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2109 +
2199 2199  (% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2111 +
2200 2200  (% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
2201 2201  )))
2202 2202  
... ... @@ -2208,7 +2208,7 @@
2208 2208  [[image:1653360498588-932.png||height="485" width="726"]]
2209 2209  
2210 2210  
2211 -== 6.4 How to change the uplink interval？ ==
2123 +== 6.4 How to change the uplink interval? ==
2212 2212  
2213 2213  
2214 2214  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/]]
... ... @@ -2257,6 +2257,12 @@
2257 2257  Firmware version needs to be no less than 1.6.0.
2258 2258  
2259 2259  
2172 +== 6.10 Why does the LT22222 always report 15.585V when measuring AVI? ==
2173 +
2174 +
2175 +It is likely that the GND is not connected during the measurement, or the wire connected to the GND is loose.
2176 +
2177 +
2260 2260  = 7. Trouble Shooting =
2261 2261  )))
2262 2262  
... ... @@ -2297,6 +2297,13 @@
2297 2297  )))
2298 2298  
2299 2299  
2218 +== 7.4 Why can LT22222 perform Uplink normally, but cannot receive Downlink? ==
2219 +
2220 +
2221 +The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue state.
2222 +Use this command to bring their counts back together: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
2223 +
2224 +
2300 2300  = 8. Order Info =
2301 2301  
2302 2302  
... ... @@ -2314,8 +2314,6 @@
2314 2314  * (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2315 2315  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2316 2316  
2317 -
2318 -
2319 2319  = 9. Packing Info =
2320 2320  
2321 2321  
... ... @@ -2333,8 +2333,6 @@
2333 2333  * Package Size / pcs : 14.5 x 8 x 5 cm
2334 2334  * Weight / pcs : 170g
2335 2335  
2336 -
2337 -
2338 2338  = 10. Support =
2339 2339  
2340 2340  
... ... @@ -2354,6 +2354,3 @@
2354 2354  * 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]]
2355 2355  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2356 2356  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2357 -
2358 -
2359 -
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