Changes for page LT-22222-L -- LoRa I/O Controller User Manual

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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	+* Set up 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	(((
...	...	@@ -53,166 +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 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
	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	214	(% border="1" cellspacing="4" 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:266px" %)**Description**
	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"]]
...	...	@@ -225,94 +225,140 @@
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 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
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
	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	+
243	243	[[image:1653297104069-180.png]]
244	244
245	245
246	246	= 3. Operation Mode =
247	247
248		-== 3.1 How it works? ==
	182	+== 3.1 How does it work? ==
249	249
	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.
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		-)))
	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.
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		-)))
	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.
258	258
	190	+== 3.2 Registering with a LoRaWAN network server ==
259	259
260		-== 3.2 Example to join LoRaWAN network ==
	192	+The diagram below shows how the LT-22222-L connects to a typical LoRaWAN network.
261	261
	194	+[[image:image-20220523172350-1.png||height="266" width="864"]]
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.
	196	+=== 3.2.1 Prerequisites ===
265	265
266		-
267		-)))
	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.
268	268
269		-[[image:image-20220523172350-1.png||height="266" width="864"]]
	200	+[[image:image-20230425173427-2.png||height="246" width="530"]]
270	270
	202	+The following subsections explain how to register the LT-22222-L with different LoRaWAN network server providers.
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:
	204	+=== 3.2.2 The Things Stack Sandbox (TTSS) ===
274	274
275		-
276		-)))
	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:
277	277
278		-(((
279		-(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LT IO controller.
280		-)))
	210	+==== Using the LoRaWAN Device Repository: ====
281	281
282		-(((
283		-Each LT is shipped with a sticker with the default device EUI as below:
284		-)))
	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.
285	285
286		-[[image:image-20230425173427-2.png||height="246" width="530"]]
	218	+[[image:lt-22222-l-dev-repo-reg-p1.png||height="625" width="1000"]]
287	287
	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.
288	288
289		-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"]]
290	290
291		-**Add APP EUI in the application.**
	229	+==== Entering device information manually: ====
292	292
293		-[[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**.
294	294
	240	+[[image:lt-22222-l-manually-p1.png||height="625" width="1000"]]
295	295
296		-**Add APP KEY and DEV EUI**
297	297
298		-[[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.
299	299
	249	+[[image:lt-22222-l-manually-p2.png||height="625" width="1000"]]
300	300
301		-(((
302		-(% 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.
303	303
304		-
305		-)))
	252	+==== Joining ====
306	306
	254	+Click on **Live Data** in the left navigation. Then, power on the device, and it will join The Things Stack Sandbox. You can see the join request, join accept, followed by uplink messages form the device showing in the Live Data panel.
	255	+
307	307	[[image:1653298044601-602.png||height="405" width="709"]]
308	308
309	309
310		-== 3.3 Uplink Payload ==
	259	+== 3.3 Uplink Payload formats ==
311	311
312	312
313		-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.
314	314
315		-* (% 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
316	316
317	317	* (% style="color:blue" %)**MOD2**(%%): Double DI Counting + DO + RO
318	318
...	...	@@ -324,16 +324,14 @@
324	324
325	325	* (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
326	326
327		-
328		-
329	329	=== 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
330	330
331	331
332	332	(((
333		-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" %)
334	334
335	335	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
336		-|(% 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**
	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**
337	337	|Value|(((
338	338	AVI1 voltage
339	339	)))|(((
...	...	@@ -348,23 +348,23 @@
348	348	)))
349	349
350	350	(((
351		-(% 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.
352	352
353	353	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
354		-|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
355		-|RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
	301	+|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
	302	+|RO1|RO2|--DI3--|DI2|DI1|--DO3--|DO2|DO1
356	356	)))
357	357
358		-* RO is for relay. ROx=1 : close, ROx=0 always open.
359		-* DI is for digital input. DIx=1: high or float, DIx=0: low.
360		-* 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.
361	361
362		-(% 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**
363	363
364		-For example if payload is: [[image:image-20220523175847-2.png]]
	311	+For example, if the payload is: [[image:image-20220523175847-2.png]]
365	365
366	366
367		-**The value for the interface is:  **
	314	+**The interface values can be calculated as follows:  **
368	368
369	369	AVI1 channel voltage is 0x04AB/1000=1195(DEC)/1000=1.195V
370	370
...	...	@@ -374,40 +374,35 @@
374	374
375	375	ACI2 channel current is 0x1300/1000=4.864mA
376	376
377		-The last byte 0xAA= 10101010(B) means
	324	+The last byte 0xAA= **10101010**(b) means,
378	378
379		-* [1] RO1 relay channel is close and the RO1 LED is ON.
380		-* [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.
381	381
382		-**LT22222-L:**
383		-
384		-* [1] DI2 channel is high input and DI2 LED is ON;
385		-* [0] DI1 channel is low input;
386		-
387		-* [0] DO3 channel output state
388		-** DO3 is float in case no load between DO3 and V+.;
389		-** DO3 is high in case there is load between DO3 and V+.
390		-** DO3 LED is off in both case
391		-* [1] DO2 channel output is low and DO2 LED is ON.
392		-* [0] DO1 channel output state
393		-** DO1 is float in case no load between DO1 and V+.;
394		-** DO1 is high in case there is load between DO1 and V+.
395		-** DO1 LED is off in both case
396		-
397		-
398		-
399	399	=== 3.3.2 AT+MOD~=2, (Double DI Counting) ===
400	400
401	401
402	402	(((
403		-**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.
404	404	)))
405	405
406	406	(((
407		-Total : 11 bytes payload
	349	+The uplink payload is 11 bytes long.
408	408
409	409	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
410		-|(% 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**
	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**
411	411	|Value|COUNT1|COUNT2 |DIDORO*|(((
412	412	Reserve
413	413	)))|MOD
...	...	@@ -414,26 +414,26 @@
414	414	)))
415	415
416	416	(((
417		-(% 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.
418	418
419	419	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
420		-|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
421		-|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
	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
422	422
423		-RO is for relay. ROx=1 : close , ROx=0 always open.
	365	+* RO is for the relay. ROx=1: closed, ROx=0 always open.
424	424	)))
425	425
426		-* FIRST: Indicate this is the first packet after join network.
427		-* 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.
428	428
429	429	(((
430		-(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
	372	+(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L**
431	431
432	432
433	433	)))
434	434
435	435	(((
436		-**To use counting mode, please run:**
	378	+**To activate this mode, run the following AT commands:**
437	437	)))
438	438
439	439	(((
...	...	@@ -454,17 +454,17 @@
454	454	(((
455	455	**For LT22222-L:**
456	456
457		-(% 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) **
458	458
459		-(% 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) **
460	460
461		-(% 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) **
462	462
463		-(% 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) **
464	464
465		-(% 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)**
466	466
467		-(% 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)**
468	468	)))
469	469
470	470
...	...	@@ -471,10 +471,10 @@
471	471	=== 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
472	472
473	473
474		-**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.
475	475
476	476	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
477		-|(% 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**
	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**
478	478	|Value|COUNT1|(((
479	479	ACI1 Current
480	480	)))|(((
...	...	@@ -482,24 +482,24 @@
482	482	)))|DIDORO*|Reserve|MOD
483	483
484	484	(((
485		-(% 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.
486	486
487	487	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
488		-|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
489		-|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
	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
490	490	)))
491	491
492		-* RO is for relay. ROx=1 : close, ROx=0 always open.
493		-* FIRST: Indicate this is the first packet after join network.
494		-* 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.
495	495
496	496	(((
497		-(% 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.**
498	498	)))
499	499
500	500
501	501	(((
502		-**To use counting mode, please run:**
	444	+**To activate this mode, run the following AT commands:**
503	503	)))
504	504
505	505	(((
...	...	@@ -512,7 +512,9 @@
512	512	)))
513	513
514	514	(((
515		-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.
516	516	)))
517	517
518	518
...	...	@@ -520,14 +520,14 @@
520	520
521	521
522	522	(((
523		-**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.
524	524	)))
525	525
526	526	(((
527		-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.
528	528
529	529	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
530		-|(% 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**
	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**
531	531	|Value|COUNT1|AVI1 Counting|DIDORO*|(((
532	532	Reserve
533	533	)))|MOD
...	...	@@ -534,25 +534,25 @@
534	534	)))
535	535
536	536	(((
537		-(% 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.
538	538
539	539	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
540		-|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
541		-|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
	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
542	542	)))
543	543
544		-* RO is for relay. ROx=1 : close, ROx=0 always open.
545		-* FIRST: Indicate this is the first packet after join network.
546		-* 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.
547	547
548	548	(((
549		-(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
	493	+(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
550	550
551	551
552	552	)))
553	553
554	554	(((
555		-**To use this mode, please run:**
	499	+**To activate this mode, run the following AT commands:**
556	556	)))
557	557
558	558	(((
...	...	@@ -565,19 +565,19 @@
565	565	)))
566	566
567	567	(((
568		-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.
569	569	)))
570	570
571	571	(((
572		-**Plus below command for AVI1 Counting:**
	516	+**In addition to that, below are the commands for AVI1 Counting:**
573	573
574		-(% 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)**
575	575
576	576	(% style="color:blue" %)**AT+VOLMAX=20000**(%%)**  (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
577	577
578	578	(% style="color:blue" %)**AT+VOLMAX=20000,0**(%%)**  (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
579	579
580		-(% 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)**
581	581	)))
582	582
583	583
...	...	@@ -584,10 +584,10 @@
584	584	=== 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
585	585
586	586
587		-**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.
588	588
589	589	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
590		-|(% 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**
	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**
591	591	|Value|(((
592	592	AVI1 voltage
593	593	)))|(((
...	...	@@ -599,25 +599,25 @@
599	599	)))|MOD
600	600
601	601	(((
602		-(% 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.
603	603
604	604	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
605		-|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
	549	+|**bit 7**|**bit 6**|**bit 5**|**bit 4**|**bit 3**|**bit 2**|**bit 1**|**bit 0**
606	606	|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
607	607	)))
608	608
609		-* RO is for relay. ROx=1 : close, ROx=0 always open.
610		-* 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.
611	611	* (((
612		-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.
613	613	)))
614	614
615	615	(((
616		-(% 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.**
617	617	)))
618	618
619	619	(((
620		-**To use this mode, please run:**
	564	+**To activate this mode, run the following AT commands:**
621	621	)))
622	622
623	623	(((
...	...	@@ -630,7 +630,7 @@
630	630	)))
631	631
632	632	(((
633		-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.
634	634	)))
635	635
636	636
...	...	@@ -637,23 +637,23 @@
637	637	=== 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
638	638
639	639
640		-(% 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.**
641	641
642		-For example, if user has configured below commands:
	586	+For example, if you configured the following commands:
643	643
644	644	* **AT+MOD=1 ** **~-~->**  The normal working mode
645		-* **AT+ADDMOD6=1**   **~-~->**  Enable trigger
	589	+* **AT+ADDMOD6=1**   **~-~->**  Enable trigger mode
646	646
647		-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:
648	648
649		-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
650		-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.**
651	651
	596	+
652	652	(% style="color:#037691" %)**AT Command to set Trigger Condition**:
653	653
	599	+(% style="color:#4f81bd" %)**Trigger based on voltage**:
654	654
655		-(% style="color:#4f81bd" %)**Trigger base on voltage**:
656		-
657	657	Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
658	658
659	659
...	...	@@ -664,9 +664,8 @@
664	664	AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
665	665
666	666
	611	+(% style="color:#4f81bd" %)**Trigger based on current**:
667	667
668		-(% style="color:#4f81bd" %)**Trigger base on current**:
669		-
670	670	Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
671	671
672	672
...	...	@@ -675,7 +675,6 @@
675	675	AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
676	676
677	677
678		-
679	679	(% style="color:#4f81bd" %)**Trigger base on DI status**:
680	680
681	681	DI status trigger Flag.
...	...	@@ -723,7 +723,7 @@
723	723	MOD6 Payload : total 11 bytes payload
724	724
725	725	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
726		-|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:69px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:69px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:109px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:49px" %)**6**|(% style="background-color:#d9e2f3; color:#0070c0; width:109px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**1**
	668	+|(% 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**
727	727	|Value|(((
728	728	TRI_A FLAG
729	729	)))|(((
...	...	@@ -842,8 +842,6 @@
842	842
843	843	* (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
844	844
845		-
846		-
847	847	=== 3.4.1 Common Commands ===
848	848
849	849
...	...	@@ -1053,7 +1053,7 @@
1053	1053	01: Low,  00: High ,  11: No action
1054	1054
1055	1055	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1056		-|(% 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**
	996	+|(% 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**
1057	1057	|02  01  00  11|Low|High|No Action
1058	1058	|02  00  11  01|High|No Action|Low
1059	1059	|02  11  01  00|No Action|Low|High
...	...	@@ -1096,7 +1096,7 @@
1096	1096	(% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1097	1097
1098	1098	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1099		-|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
	1039	+|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1100	1100	|0x01|DO1 set to low
1101	1101	|0x00|DO1 set to high
1102	1102	|0x11|DO1 NO Action
...	...	@@ -1104,7 +1104,7 @@
1104	1104	(% style="color:#4f81bd" %)**Fourth 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**
	1047	+|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1108	1108	|0x01|DO2 set to low
1109	1109	|0x00|DO2 set to high
1110	1110	|0x11|DO2 NO Action
...	...	@@ -1112,7 +1112,7 @@
1112	1112	(% style="color:#4f81bd" %)**Fifth 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**
	1055	+|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1116	1116	|0x01|DO3 set to low
1117	1117	|0x00|DO3 set to high
1118	1118	|0x11|DO3 NO Action
...	...	@@ -1149,7 +1149,7 @@
1149	1149
1150	1150
1151	1151
1152		-==== 3.4.2. 14 Relay ~-~- Control Relay Output RO1/RO2 ====
	1092	+==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1153	1153
1154	1154
1155	1155	* (% style="color:#037691" %)**AT Command:**
...	...	@@ -1167,10 +1167,10 @@
1167	1167	)))
1168	1168
1169	1169	(((
1170		-01: Close ,  00: Open , 11: No action
	1110	+00: Close ,  01: Open , 11: No action
1171	1171
1172	1172	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1173		-|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO2**
	1113	+|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1174	1174	|03  00  11|Open|No Action
1175	1175	|03  01  11|Close|No Action
1176	1176	|03  11  00|No Action|Open
...	...	@@ -1410,74 +1410,91 @@
1410	1410	[[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"]]
1411	1411
1412	1412
1413		-== 3.5 Integrate with Mydevice ==
	1353	+== 3.5 Integrating with ThingsEye.io ==
1414	1414
	1355	+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.
1415	1415
1416		-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:
	1357	+=== 3.5.1 Configuring The Things Stack Sandbox ===
1417	1417
1418		-(((
1419		-(% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the network at this time.
1420		-)))
	1359	+* Go to your Application and select MQTT under Integrations.
	1360	+* In the Connection credentials section, under Username, The Thins Stack displays an auto-generated username. You can use it or provide a new one.
	1361	+* For the Password, click the Generate new API key button to generate a password. You can see it by clicking on the eye button.
1421	1421
1422		-(((
1423		-(% 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:
	1363	+[[image:tts-mqtt-integration.png||height="625" width="1000"]]
1424	1424
1425		-
1426		-)))
	1365	+=== 3.5.2 Configuring ThingsEye.io ===
1427	1427
1428		-[[image:image-20220719105525-1.png||height="377" width="677"]]
	1367	+* Login to your thingsEye.io account.
	1368	+* Under the Integrations center, click Integrations.
	1369	+* Click the Add integration button (the button with the + symbol).
1429	1429
	1371	+[[image:thingseye-io-step-1.png||height="625" width="1000"]]
1430	1430
1431	1431
1432		-[[image:image-20220719110247-2.png||height="388" width="683"]]
	1374	+On the Add integration page configure the following:
1433	1433
	1376	+Basic settings:
1434	1434
1435		-(% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
	1378	+* Select The Things Stack Community from the Integration type list.
	1379	+* Enter a suitable name for your integration in the Name box or keep the default name.
	1380	+* Click the Next button.
1436	1436
1437		-(% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L) and add DevEUI.(% style="display:none" %)
	1382	+[[image:thingseye-io-step-2.png||height="625" width="1000"]]
1438	1438
1439		-Search under The things network
	1384	+Uplink Data converter:
1440	1440
1441		-[[image:1653356838789-523.png||height="337" width="740"]]
	1386	+* Click the Create New button if it is not selected by default.
	1387	+* Click the JavaScript button.
	1388	+* Paste the uplink decoder function into the text area (first, delete the default code). The demo decoder function can be found here.
	1389	+* Click the Next button.
1442	1442
	1391	+[[image:thingseye-io-step-3.png||height="625" width="1000"]]
1443	1443
1444		-After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
	1393	+Downlink Data converter (this is an optional step):
1445	1445
1446		-[[image:image-20220524094909-1.png||height="335" width="729"]]
	1395	+* Click the Create new button if it is not selected by default.
	1396	+* Click the JavaScript button.
	1397	+* Paste the downlink decoder function into the text area (first, delete the default code). The demo decoder function can be found here.
	1398	+* Click the Next button.
1447	1447
	1400	+[[image:thingseye-io-step-4.png||height="625" width="1000"]]
1448	1448
1449		-[[image:image-20220524094909-2.png||height="337" width="729"]]
	1402	+Connection:
1450	1450
	1404	+* Choose Region from the Host type.
	1405	+* Enter the cluster of your The Things Stack in the Region textbox.
	1406	+* 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.
	1407	+* Click Check connection to test the connection. If the connection is successful, you can see the message saying Connected.
	1408	+* Click the Add button.
1451	1451
1452		-[[image:image-20220524094909-3.png||height="338" width="727"]]
	1410	+[[image:thingseye-io-step-5.png||height="625" width="1000"]]
1453	1453
1454	1454
1455		-[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
	1413	+Your integration is added to the integrations list and it will display on the Integrations page.
1456	1456
	1415	+[[image:thingseye-io-step-6.png||height="625" width="1000"]]
1457	1457
1458		-[[image:image-20220524094909-5.png||height="341" width="734"]]
1459	1459
	1418	+== 3.6 Interface Details ==
1460	1460
1461		-== 3.6 Interface Detail ==
1462		-
1463	1463	=== 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1464	1464
1465	1465
1466		-Support NPN Type sensor
	1423	+Support NPN-type sensor
1467	1467
1468	1468	[[image:1653356991268-289.png]]
1469	1469
1470	1470
1471		-=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
	1428	+=== 3.6.2 Digital Input Ports: DI1/DI2 ( For LT-22222-L) ===
1472	1472
1473	1473
1474	1474	(((
1475		-The DI port of LT-22222-L can support **NPN** or **PNP** or **Dry Contact** output sensor.
	1432	+The DI ports of the LT-22222-L can support **NPN**, **PNP**, or **dry contact** output sensors.
1476	1476	)))
1477	1477
1478	1478	(((
1479	1479	(((
1480		-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.
	1437	+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.
1481	1481
1482	1482
1483	1483	)))
...	...	@@ -1487,7 +1487,7 @@
1487	1487
1488	1488	(((
1489	1489	(((
1490		-When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
	1447	+(% 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.
1491	1491	)))
1492	1492	)))
1493	1493
...	...	@@ -1496,22 +1496,22 @@
1496	1496	)))
1497	1497
1498	1498	(((
1499		-(% style="color:blue" %)**Example1**(%%): Connect to a Low active sensor.
	1456	+(% style="color:#0000ff" %)**Example 1**(%%): Connecting to a low-active sensor.
1500	1500	)))
1501	1501
1502	1502	(((
1503		-This type of sensor will output a low signal GND when active.
	1460	+This type of sensor outputs a low (GND) signal when active.
1504	1504	)))
1505	1505
1506	1506	* (((
1507		-Connect sensor's output to DI1-
	1464	+Connect the sensor's output to DI1-
1508	1508	)))
1509	1509	* (((
1510		-Connect sensor's VCC to DI1+.
	1467	+Connect the sensor's VCC to DI1+.
1511	1511	)))
1512	1512
1513	1513	(((
1514		-So when sensor active, the current between NEC2501 pin1 and pin2 is：
	1471	+When the sensor is active, the current between NEC2501 pin 1 and pin 2 will be：
1515	1515	)))
1516	1516
1517	1517	(((
...	...	@@ -1519,7 +1519,7 @@
1519	1519	)))
1520	1520
1521	1521	(((
1522		-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.
	1479	+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.
1523	1523	)))
1524	1524
1525	1525	(((
...	...	@@ -1527,22 +1527,22 @@
1527	1527	)))
1528	1528
1529	1529	(((
1530		-(% style="color:blue" %)**Example2**(%%): Connect to a High active sensor.
	1487	+(% style="color:#0000ff" %)**Example 2**(%%): Connecting to a high-active sensor.
1531	1531	)))
1532	1532
1533	1533	(((
1534		-This type of sensor will output a high signal (example 24v) when active.
	1491	+This type of sensor outputs a high signal (e.g., 24V) when active.
1535	1535	)))
1536	1536
1537	1537	* (((
1538		-Connect sensor's output to DI1+
	1495	+Connect the sensor's output to DI1+
1539	1539	)))
1540	1540	* (((
1541		-Connect sensor's GND DI1-.
	1498	+Connect the sensor's GND DI1-.
1542	1542	)))
1543	1543
1544	1544	(((
1545		-So when sensor active, the current between NEC2501 pin1 and pin2 is:
	1502	+When the sensor is active, the current between NEC2501 pin1 and pin2 will be:
1546	1546	)))
1547	1547
1548	1548	(((
...	...	@@ -1550,7 +1550,7 @@
1550	1550	)))
1551	1551
1552	1552	(((
1553		-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.
	1510	+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.
1554	1554	)))
1555	1555
1556	1556	(((
...	...	@@ -1558,22 +1558,22 @@
1558	1558	)))
1559	1559
1560	1560	(((
1561		-(% style="color:blue" %)**Example3**(%%): Connect to a 220v high active sensor.
	1518	+(% style="color:#0000ff" %)**Example 3**(%%): Connecting to a 220V high-active sensor.
1562	1562	)))
1563	1563
1564	1564	(((
1565		-Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler
	1522	+Assume that you want to monitor an active signal higher than 220V without damaging the photocoupler
1566	1566	)))
1567	1567
1568	1568	* (((
1569		-Connect sensor's output to DI1+ with a serial 50K resistor
	1526	+Connect the sensor's output to DI1+ with a 50K resistor in series.
1570	1570	)))
1571	1571	* (((
1572		-Connect sensor's GND DI1-.
	1529	+Connect the sensor's GND DI1-.
1573	1573	)))
1574	1574
1575	1575	(((
1576		-So when sensor active, the current between NEC2501 pin1 and pin2 is:
	1533	+When the sensor is active, the current between NEC2501 pin1 and pin2 will be:
1577	1577	)))
1578	1578
1579	1579	(((
...	...	@@ -1581,33 +1581,37 @@
1581	1581	)))
1582	1582
1583	1583	(((
1584		-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.
	1541	+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.
1585	1585	)))
1586	1586
1587	1587
1588		-(% style="color:blue" %)**Example4**(%%): Connect to Dry Contact sensor
	1545	+(% style="color:blue" %)**Example4**(%%): Connecting to Dry Contact sensor
1589	1589
1590		-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.
	1547	+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.
1591	1591
1592		-To detect a Dry Contact, we can provide a power source to one pin of the Dry Contact. Below is a reference connection.
	1549	+To detect a Dry Contact, you can supply a power source to one pin of the Dry Contact. Below is a reference circuit diagram.
1593	1593
1594	1594	[[image:image-20230616235145-1.png]]
1595	1595
	1553	+(% style="color:blue" %)**Example5**(%%): Connecting to an Open Collector
1596	1596
1597		-=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
	1555	+[[image:image-20240219115718-1.png]]
1598	1598
1599	1599
1600		-(% style="color:blue" %)**NPN output**(%%): GND or Float. Max voltage can apply to output pin is 36v.
	1558	+=== 3.6.3 Digital Output Ports: DO1/DO2 /DO3 ===
1601	1601
1602		-(% style="color:red" %)**Note: DO pins go to float when device is power off.**
1603	1603
	1561	+(% style="color:blue" %)**NPN output**(%%): GND or Float. The maximum voltage that can be applied to the output pin is 36V.
	1562	+
	1563	+(% style="color:red" %)**Note: The DO pins will float when the device is powered off.**
	1564	+
1604	1604	[[image:1653357531600-905.png]]
1605	1605
1606	1606
1607		-=== 3.6.4 Analog Input Interface ===
	1568	+=== 3.6.4 Analog Input Interfaces ===
1608	1608
1609	1609
1610		-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:
	1571	+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:
1611	1611
1612	1612
1613	1613	(% style="color:blue" %)**AC2 = (IN2 voltage )/12**
...	...	@@ -1614,14 +1614,14 @@
1614	1614
1615	1615	[[image:1653357592296-182.png]]
1616	1616
1617		-Example to connect a 4~~20mA sensor
	1578	+Example: Connecting a 4~~20mA sensor
1618	1618
1619		-We take the wind speed sensor as an example for reference only.
	1580	+We will use the wind speed sensor as an example for reference only.
1620	1620
1621	1621
1622	1622	(% style="color:blue" %)**Specifications of the wind speed sensor:**
1623	1623
1624		-(% style="color:red" %)**Red:  12~~24v**
	1585	+(% style="color:red" %)**Red:  12~~24V**
1625	1625
1626	1626	(% style="color:#ffc000" %)**Yellow:  4~~20mA**
1627	1627
...	...	@@ -1634,7 +1634,7 @@
1634	1634	[[image:1653357648330-671.png||height="155" width="733"]]
1635	1635
1636	1636
1637		-Example connected to a regulated power supply to measure voltage
	1598	+Example: Connecting to a regulated power supply to measure voltage
1638	1638
1639	1639	[[image:image-20230608101532-1.png||height="606" width="447"]]
1640	1640
...	...	@@ -1643,7 +1643,7 @@
1643	1643	[[image:image-20230608101722-3.png||height="102" width="1139"]]
1644	1644
1645	1645
1646		-(% style="color:blue; font-weight:bold" %)**Specifications of the regulated power**(%%) (% style="color:blue" %)**:**
	1607	+(% style="color:blue; font-weight:bold" %)**Specifications of the regulated power supply**(% style="color:blue" %)**:**
1647	1647
1648	1648	(% style="color:red" %)**Red:  12~~24v**
1649	1649
...	...	@@ -1654,9 +1654,9 @@
1654	1654
1655	1655
1656	1656	(((
1657		-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:
	1618	+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:
1658	1658
1659		-**Note**: RO pins go to Open(NO) when device is power off.
	1620	+**Note**: The ROx pins will be in the Open (NO) state when the LT-22222-L is powered off.
1660	1660	)))
1661	1661
1662	1662	[[image:image-20220524100215-9.png]]
...	...	@@ -1668,12 +1668,9 @@
1668	1668	== 3.7 LEDs Indicators ==
1669	1669
1670	1670
1671		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1672		-|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**LEDs**|(% style="background-color:#d9e2f3; color:#0070c0; width:470px" %)**Feature**
	1632	+(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
	1633	+|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1673	1673	|**PWR**|Always on if there is power
1674		-|**SYS**|(((
1675		-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.
1676		-)))
1677	1677	|**TX**|(((
1678	1678	(((
1679	1679	Device boot: TX blinks 5 times.
...	...	@@ -1687,42 +1687,32 @@
1687	1687	Transmit a LoRa packet: TX blinks once
1688	1688	)))
1689	1689	)))
1690		-|**RX**|RX blinks once when receive a packet.
1691		-|**DO1**|
1692		-|**DO2**|
1693		-|**DO3**|
1694		-|**DI2**|(((
1695		-For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
	1648	+|**RX**|RX blinks once when receiving a packet.
	1649	+|**DO1**|For LT-22222-L: ON when DO1 is low, OFF when DO1 is high
	1650	+|**DO2**|For LT-22222-L: ON when DO2 is low, OFF when DO2 is high
	1651	+|**DI1**|(((
	1652	+For LT-22222-L: ON when DI1 is high, OFF when DI1 is low
1696	1696	)))
1697	1697	|**DI2**|(((
1698		-For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
	1655	+For LT-22222-L: ON when DI2 is high, OFF when DI2 is low
1699	1699	)))
1700		-|**DI2**|(((
1701		-For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1702		-)))
1703		-|**RO1**|
1704		-|**RO2**|
	1657	+|**RO1**|For LT-22222-L: ON when RO1 is closed, OFF when RO1 is open
	1658	+|**RO2**|For LT-22222-L: ON when RO2 is closed, OFF when RO2 is open
1705	1705
	1660	+= 4. Using AT Command =
1706	1706
	1662	+== 4.1 Connecting the LT-22222-L to a computer ==
1707	1707
1708		-= 4. Use AT Command =
1709	1709
1710		-== 4.1 Access AT Command ==
1711		-
1712		-
1713	1713	(((
1714		-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.
	1666	+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.
1715	1715	)))
1716	1716
1717		-(((
1718		-
1719		-)))
1720		-
1721	1721	[[image:1653358238933-385.png]]
1722	1722
1723	1723
1724	1724	(((
1725		-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:
	1673	+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:
1726	1726	)))
1727	1727
1728	1728	[[image:1653358355238-883.png]]
...	...	@@ -1729,10 +1729,12 @@
1729	1729
1730	1730
1731	1731	(((
1732		-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/]]
	1680	+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/]]
1733	1733	)))
1734	1734
1735	1735	(((
	1684	+The following table lists all the AT commands related to the LT-22222-L, except for those used for switching between modes.
	1685	+
1736	1736	AT+<CMD>?        : Help on <CMD>
1737	1737	)))
1738	1738
...	...	@@ -2074,7 +2074,7 @@
2074	2074	* For bug fix
2075	2075	* Change LoRaWAN bands.
2076	2076
2077		-Below shows the hardware connection for how to upload an image to the LT:
	2027	+Below is the hardware connection for how to upload an image to the LT:
2078	2078
2079	2079	[[image:1653359603330-121.png]]
2080	2080
...	...	@@ -2104,7 +2104,6 @@
2104	2104
2105	2105	(% 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:
2106	2106
2107		-
2108	2108	[[image:1653360054704-518.png||height="186" width="745"]]
2109	2109
2110	2110
...	...	@@ -2243,6 +2243,12 @@
2243	2243	Firmware version needs to be no less than 1.6.0.
2244	2244
2245	2245
	2195	+== 6.10 Why does the LT22222 always report 15.585V when measuring AVI? ==
	2196	+
	2197	+
	2198	+It is likely that the GND is not connected during the measurement, or the wire connected to the GND is loose.
	2199	+
	2200	+
2246	2246	= 7. Trouble Shooting =
2247	2247	)))
2248	2248
...	...	@@ -2283,6 +2283,13 @@
2283	2283	)))
2284	2284
2285	2285
	2241	+== 7.4 Why can LT22222 perform Uplink normally, but cannot receive Downlink? ==
	2242	+
	2243	+
	2244	+The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue state.
	2245	+Use this command to bring their counts back together: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
	2246	+
	2247	+
2286	2286	= 8. Order Info =
2287	2287
2288	2288
...	...	@@ -2300,8 +2300,6 @@
2300	2300	* (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2301	2301	* (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2302	2302
2303		-
2304		-
2305	2305	= 9. Packing Info =
2306	2306
2307	2307
...	...	@@ -2319,8 +2319,6 @@
2319	2319	* Package Size / pcs : 14.5 x 8 x 5 cm
2320	2320	* Weight / pcs : 170g
2321	2321
2322		-
2323		-
2324	2324	= 10. Support =
2325	2325
2326	2326
...	...	@@ -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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