Last modified by Mengting Qiu on 2024/04/02 16:44
<
From version < 26.2 >
edited by Xiaoling
on 2022/06/06 16:57
To version < 11.5 >
edited by Xiaoling
on 2022/06/06 16:05
>
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Summary

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Content
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1 1  (% style="text-align:center" %)
2 2  [[image:image-20220606151504-2.jpeg||height="848" width="848"]]
3 3  
4 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
4 4  
5 5  
6 6  
... ... @@ -8,40 +8,44 @@
8 8  
9 9  
10 10  
11 -= 1. Introduction =
12 12  
13 -== 1.1 ​What is LoRaWAN Soil Moisture & EC Sensor ==
14 14  
15 -(((
16 -The Dragino LSE01 is a (% style="color:#4f81bd" %)**LoRaWAN Soil Moisture & EC Sensor**(%%) for IoT of Agriculture. It is designed to measure the soil moisture of saline-alkali soil and loamy soil. The soil sensor uses FDR method to calculate the soil moisture with the compensation from soil temperature and conductivity. It also has been calibrated in factory for Mineral soil type.
17 -)))
18 18  
19 -(((
20 -It detects (% style="color:#4f81bd" %)**Soil Moisture**(%%), (% style="color:#4f81bd" %)**Soil Temperature**(%%) and (% style="color:#4f81bd" %)**Soil Conductivity**(%%), and uploads the value via wireless to LoRaWAN IoT Server.
21 -)))
22 22  
23 -(((
16 +
17 +
18 +
19 +
20 +
21 +
22 +
23 +1. Introduction
24 +11. ​What is LoRaWAN Soil Moisture & EC Sensor
25 +
26 +The Dragino LSE01 is a **LoRaWAN Soil Moisture & EC Sensor** for IoT of Agriculture. It is designed to measure the soil moisture of saline-alkali soil and loamy soil. The soil sensor uses FDR method to calculate the soil moisture with the compensation from soil temperature and conductivity. It also has been calibrated in factory for Mineral soil type.
27 +
28 +
29 +It detects **Soil Moisture**, **Soil Temperature** and **Soil Conductivity**, and uploads the value via wireless to LoRaWAN IoT Server.
30 +
31 +
24 24  The LoRa wireless technology used in LES01 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
25 -)))
26 26  
27 -(((
28 -LES01 is powered by (% style="color:#4f81bd" %)**4000mA or 8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to 10 years.
29 -)))
30 30  
31 -(((
32 -Each LES01 is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
33 -)))
35 +LES01 is powered by **4000mA or 8500mAh Li-SOCI2 battery**, It is designed for long term use up to 10 years.
34 34  
35 35  
36 -[[image:1654503236291-817.png]]
38 +Each LES01 is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
37 37  
38 38  
39 -[[image:1654503265560-120.png]]
41 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png]]
40 40  
41 41  
44 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.png]]
42 42  
43 -== 1.2 ​Features ==
44 44  
47 +
48 +*
49 +*1. ​Features
45 45  * LoRaWAN 1.0.3 Class A
46 46  * Ultra low power consumption
47 47  * Monitor Soil Moisture
... ... @@ -54,48 +54,63 @@
54 54  * IP66 Waterproof Enclosure
55 55  * 4000mAh or 8500mAh Battery for long term use
56 56  
57 -== 1.3 Specification ==
62 +1.
63 +11. Specification
58 58  
59 59  Measure Volume: Base on the centra pin of the probe, a cylinder with 7cm diameter and 10cm height.
60 60  
61 -[[image:image-20220606162220-5.png]]
67 +|**Parameter**|**Soil Moisture**|**Soil Conductivity**|**Soil Temperature**
68 +|**Range**|**0-100.00%**|(((
69 +**0-20000uS/cm**
62 62  
71 +**(25℃)(0-20.0EC)**
72 +)))|**-40.00℃～85.00℃**
73 +|**Unit**|**V/V %,**|**uS/cm,**|**℃**
74 +|**Resolution**|**0.01%**|**1 uS/cm**|**0.01℃**
75 +|**Accuracy**|(((
76 +**±3% (0-53%)**
63 63  
78 +**±5% (>53%)**
79 +)))|**2%FS,**|(((
80 +**-10℃～50℃:<0.3℃**
64 64  
65 -== ​1.4 Applications ==
82 +**All other: <0.6℃**
83 +)))
84 +|(((
85 +**Measure**
66 66  
87 +**Method**
88 +)))|**FDR , with temperature &EC compensate**|**Conductivity , with temperature compensate**|**RTD, and calibrate**
89 +
90 +*
91 +*1. ​Applications
67 67  * Smart Agriculture
68 68  
69 -(% class="wikigeneratedid" id="H200B1.5FirmwareChangelog" %)
70 -​
94 +1.
95 +11. ​Firmware Change log
71 71  
72 -== 1.5 Firmware Change log ==
97 +**LSE01 v1.0:**
73 73  
99 +* Release
74 74  
75 -**LSE01 v1.0 :**  Release
101 +1. Configure LSE01 to connect to LoRaWAN network
102 +11. How it works
76 76  
104 +The LSE01 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LSE0150. It will automatically join the network via OTAA and start to send the sensor value
77 77  
78 78  
79 -= 2. Configure LSE01 to connect to LoRaWAN network =
107 +In case you can’t set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>path:#_​Using_the_AT]]to set the keys in the LSE01.
80 80  
81 -== 2.1 How it works ==
82 82  
83 -(((
84 -The LSE01 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LSE0150. It will automatically join the network via OTAA and start to send the sensor value
85 -)))
86 86  
87 -(((
88 -In case you can’t set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.​UsingtheATCommands"]].
89 -)))
90 90  
112 +1.
113 +11. ​Quick guide to connect to LoRaWAN server (OTAA)
91 91  
92 -
93 -== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
94 -
95 95  Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example.
96 96  
97 97  
98 -[[image:1654503992078-669.png]]
118 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.png]]
99 99  
100 100  
101 101  The LG308 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
... ... @@ -105,22 +105,27 @@
105 105  
106 106  Each LSE01 is shipped with a sticker with the default device EUI as below:
107 107  
108 -[[image:image-20220606163732-6.jpeg]]
109 109  
129 +
130 +
110 110  You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
111 111  
133 +
112 112  **Add APP EUI in the application**
113 113  
114 114  
115 -[[image:1654504596150-405.png]]
137 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image004.png]]
116 116  
117 117  
118 118  
119 119  **Add APP KEY and DEV EUI**
120 120  
121 -[[image:1654504683289-357.png]]
122 122  
144 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image005.png]]
123 123  
146 +|(((
147 +
148 +)))
124 124  
125 125  **Step 2**: Power on LSE01
126 126  
... ... @@ -127,18 +127,28 @@
127 127  
128 128  Put a Jumper on JP2 to power on the device. ( The Jumper must be in FLASH position).
129 129  
130 -[[image:image-20220606163915-7.png]]
131 131  
132 132  
157 +|(((
158 +
159 +)))
160 +
161 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image006.png]]
162 +
163 +
164 +
165 +
166 +
133 133  **Step 3:** The LSE01 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
134 134  
135 -[[image:1654504778294-788.png]]
169 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]]
136 136  
137 137  
138 138  
139 -== 2.3 Uplink Payload ==
140 140  
141 -=== 2.3.1 MOD~=0(Default Mode) ===
174 +1.
175 +11. ​Uplink Payload
176 +111. MOD=0(Default Mode)
142 142  
143 143  LSE01 will uplink payload via LoRaWAN with below payload format: 
144 144  
... ... @@ -161,12 +161,13 @@
161 161  (Optional)
162 162  )))
163 163  
164 -[[image:1654504881641-514.png]]
199 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]]
165 165  
166 166  
202 +1.
203 +11.
204 +111. MOD=1(Original value)
167 167  
168 -=== 2.3.2 MOD~=1(Original value) ===
169 -
170 170  This mode can get the original AD value of moisture and original conductivity (with temperature drift compensation).
171 171  
172 172  |(((
... ... @@ -184,12 +184,12 @@
184 184  (Optional)
185 185  )))
186 186  
187 -[[image:1654504907647-967.png]]
223 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image008.png]]
188 188  
225 +1.
226 +11.
227 +111. Battery Info
189 189  
190 -
191 -=== 2.3.3 Battery Info ===
192 -
193 193  Check the battery voltage for LSE01.
194 194  
195 195  Ex1: 0x0B45 = 2885mV
... ... @@ -198,19 +198,21 @@
198 198  
199 199  
200 200  
201 -=== 2.3.4 Soil Moisture ===
237 +1.
238 +11.
239 +111. Soil Moisture
202 202  
203 203  Get the moisture content of the soil. The value range of the register is 0-10000(Decimal), divide this value by 100 to get the percentage of moisture in the soil.
204 204  
205 -For example, if the data you get from the register is __0x05 0xDC__, the moisture content in the soil is
243 +For example, if the data you get from the register is 0x05 0xDC, the moisture content in the soil is
206 206  
245 +**05DC(H) = 1500(D) /100 = 15%.**
207 207  
208 -(% style="color:#4f81bd" %)**05DC(H) = 1500(D) /100 = 15%.**
209 209  
248 +1.
249 +11.
250 +111. Soil Temperature
210 210  
211 -
212 -=== 2.3.5 Soil Temperature ===
213 -
214 214   Get the temperature in the soil. The value range of the register is -4000 - +800(Decimal), divide this value by 100 to get the temperature in the soil. For example, if the data you get from the register is 0x09 0xEC, the temperature content in the soil is
215 215  
216 216  **Example**:
... ... @@ -220,31 +220,21 @@
220 220  If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/100 = -1.29 °C
221 221  
222 222  
261 +1.
262 +11.
263 +111. Soil Conductivity (EC)
223 223  
224 -=== 2.3.6 Soil Conductivity (EC) ===
265 +Obtain soluble salt concentration in soil or soluble ion concentration in liquid fertilizer or planting medium,. The value range of the register is 0 - 20000(Decimal)( Can be greater than 20000).
225 225  
226 -(((
227 -Obtain (% style="color:#4f81bd" %)**__soluble salt concentration__**(%%) in soil or (% style="color:#4f81bd" %)**__soluble ion concentration in liquid fertilizer__**(%%) or (% style="color:#4f81bd" %)**__planting medium__**(%%). The value range of the register is 0 - 20000(Decimal)( Can be greater than 20000).
228 -)))
229 -
230 -(((
231 231  For example, if the data you get from the register is 0x00 0xC8, the soil conductivity is 00C8(H) = 200(D) = 200 uS/cm.
232 -)))
233 233  
234 -(((
269 +
235 235  Generally, the EC value of irrigation water is less than 800uS / cm.
236 -)))
237 237  
238 -(((
239 -
240 -)))
272 +1.
273 +11.
274 +111. MOD
241 241  
242 -(((
243 -
244 -)))
245 -
246 -=== 2.3.7 MOD ===
247 -
248 248  Firmware version at least v2.1 supports changing mode.
249 249  
250 250  For example, bytes[10]=90
... ... @@ -259,13 +259,14 @@
259 259  If** **payload =** **0x0A01, workmode=1
260 260  
261 261  
290 +1.
291 +11.
292 +111. ​Decode payload in The Things Network
262 262  
263 -=== 2.3.8 ​Decode payload in The Things Network ===
264 -
265 265  While using TTN network, you can add the payload format to decode the payload.
266 266  
267 267  
268 -[[image:1654505570700-128.png]]
297 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image009.png]]
269 269  
270 270  The payload decoder function for TTN is here:
271 271  
... ... @@ -272,26 +272,30 @@
272 272  LSE01 TTN Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
273 273  
274 274  
275 -== 2.4 Uplink Interval ==
304 +1.
305 +11. Uplink Interval
276 276  
277 277  The LSE01 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link:
278 278  
279 279  [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands#Change_Uplink_Interval>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands#Change_Uplink_Interval]]
280 280  
311 +1.
312 +11. ​Downlink Payload
281 281  
282 -
283 -== 2.5 Downlink Payload ==
284 -
285 285  By default, LSE50 prints the downlink payload to console port.
286 286  
287 -[[image:image-20220606165544-8.png]]
316 +|**Downlink Control Type**|**FPort**|**Type Code**|**Downlink payload size(bytes)**
317 +|TDC (Transmit Time Interval)|Any|01|4
318 +|RESET|Any|04|2
319 +|AT+CFM|Any|05|4
320 +|INTMOD|Any|06|4
321 +|MOD|Any|0A|2
288 288  
323 +**Examples**
289 289  
290 -**Examples:**
291 291  
326 +**Set TDC**
292 292  
293 -* **Set TDC**
294 -
295 295  If the payload=0100003C, it means set the END Node’s TDC to 0x00003C=60(S), while type code is 01.
296 296  
297 297  Payload:    01 00 00 1E    TDC=30S
... ... @@ -299,19 +299,18 @@
299 299  Payload:    01 00 00 3C    TDC=60S
300 300  
301 301  
302 -* **Reset**
335 +**Reset**
303 303  
304 304  If payload = 0x04FF, it will reset the LSE01
305 305  
306 306  
307 -* **CFM**
340 +**CFM**
308 308  
309 309  Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
310 310  
344 +1.
345 +11. ​Show Data in DataCake IoT Server
311 311  
312 -
313 -== 2.6 ​Show Data in DataCake IoT Server ==
314 -
315 315  [[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
316 316  
317 317  
... ... @@ -320,10 +320,10 @@
320 320  **Step 2**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:
321 321  
322 322  
323 -[[image:1654505857935-743.png]]
355 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
324 324  
325 325  
326 -[[image:1654505874829-548.png]]
358 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
327 327  
328 328  
329 329  
... ... @@ -768,100 +768,100 @@
768 768  (% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD>=?**(%%)  : Get the value
769 769  
770 770  
771 -(% style="color:#037691" %)**General Commands**(%%)      
803 +(% style="color:#037691" %)**General Commands**      
772 772  
773 -(% style="background-color:#dcdcdc" %)**AT**(%%)  : Attention       
805 +**AT**  : Attention       
774 774  
775 -(% style="background-color:#dcdcdc" %)**AT?**(%%)  : Short Help     
807 +**AT?**  : Short Help     
776 776  
777 -(% style="background-color:#dcdcdc" %)**ATZ**(%%)  : MCU Reset    
809 +**ATZ**  : MCU Reset    
778 778  
779 -(% style="background-color:#dcdcdc" %)**AT+TDC**(%%)  : Application Data Transmission Interval 
811 +**AT+TDC**  : Application Data Transmission Interval 
780 780  
781 781  
782 782  (% style="color:#037691" %)**Keys, IDs and EUIs management**
783 783  
784 -(% style="background-color:#dcdcdc" %)**AT+APPEUI**(%%)              : Application EUI      
816 +**AT+APPEUI**              : Application EUI      
785 785  
786 -(% style="background-color:#dcdcdc" %)**AT+APPKEY**(%%)              : Application Key     
818 +**AT+APPKEY**              : Application Key     
787 787  
788 -(% style="background-color:#dcdcdc" %)**AT+APPSKEY**(%%)            : Application Session Key
820 +**AT+APPSKEY**            : Application Session Key
789 789  
790 -(% style="background-color:#dcdcdc" %)**AT+DADDR**(%%)              : Device Address     
822 +**AT+DADDR**              : Device Address     
791 791  
792 -(% style="background-color:#dcdcdc" %)**AT+DEUI**(%%)                   : Device EUI     
824 +**AT+DEUI**                   : Device EUI     
793 793  
794 -(% style="background-color:#dcdcdc" %)**AT+NWKID**(%%)               : Network ID (You can enter this command change only after successful network connection) 
826 +**AT+NWKID**               : Network ID (You can enter this command change only after successful network connection) 
795 795  
796 -(% style="background-color:#dcdcdc" %)**AT+NWKSKEY**(%%)          : Network Session Key Joining and sending date on LoRa network  
828 +**AT+NWKSKEY**          : Network Session Key Joining and sending date on LoRa network  
797 797  
798 -(% style="background-color:#dcdcdc" %)**AT+CFM**(%%)  : Confirm Mode       
830 +**AT+CFM**  : Confirm Mode       
799 799  
800 -(% style="background-color:#dcdcdc" %)**AT+CFS**(%%)                     : Confirm Status       
832 +**AT+CFS**                     : Confirm Status       
801 801  
802 -(% style="background-color:#dcdcdc" %)**AT+JOIN**(%%)  : Join LoRa? Network       
834 +**AT+JOIN**  : Join LoRa? Network       
803 803  
804 -(% style="background-color:#dcdcdc" %)**AT+NJM**(%%)  : LoRa? Network Join Mode    
836 +**AT+NJM**  : LoRa? Network Join Mode    
805 805  
806 -(% style="background-color:#dcdcdc" %)**AT+NJS**(%%)                     : LoRa? Network Join Status    
838 +**AT+NJS**                     : LoRa? Network Join Status    
807 807  
808 -(% style="background-color:#dcdcdc" %)**AT+RECV**(%%)                  : Print Last Received Data in Raw Format
840 +**AT+RECV**                  : Print Last Received Data in Raw Format
809 809  
810 -(% style="background-color:#dcdcdc" %)**AT+RECVB**(%%)                : Print Last Received Data in Binary Format      
842 +**AT+RECVB**                : Print Last Received Data in Binary Format      
811 811  
812 -(% style="background-color:#dcdcdc" %)**AT+SEND**(%%)                  : Send Text Data      
844 +**AT+SEND**                  : Send Text Data      
813 813  
814 -(% style="background-color:#dcdcdc" %)**AT+SENB**(%%)                  : Send Hexadecimal Data
846 +**AT+SENB**                  : Send Hexadecimal Data
815 815  
816 816  
817 817  (% style="color:#037691" %)**LoRa Network Management**
818 818  
819 -(% style="background-color:#dcdcdc" %)**AT+ADR**(%%)          : Adaptive Rate
851 +**AT+ADR**          : Adaptive Rate
820 820  
821 -(% style="background-color:#dcdcdc" %)**AT+CLASS**(%%)  : LoRa Class(Currently only support class A
853 +**AT+CLASS**  : LoRa Class(Currently only support class A
822 822  
823 -(% style="background-color:#dcdcdc" %)**AT+DCS**(%%)  : Duty Cycle Setting 
855 +**AT+DCS**  : Duty Cycle Setting 
824 824  
825 -(% style="background-color:#dcdcdc" %)**AT+DR**(%%)  : Data Rate (Can Only be Modified after ADR=0)     
857 +**AT+DR**  : Data Rate (Can Only be Modified after ADR=0)     
826 826  
827 -(% style="background-color:#dcdcdc" %)**AT+FCD**(%%)  : Frame Counter Downlink       
859 +**AT+FCD**  : Frame Counter Downlink       
828 828  
829 -(% style="background-color:#dcdcdc" %)**AT+FCU**(%%)  : Frame Counter Uplink   
861 +**AT+FCU**  : Frame Counter Uplink   
830 830  
831 -(% style="background-color:#dcdcdc" %)**AT+JN1DL**(%%)  : Join Accept Delay1
863 +**AT+JN1DL**  : Join Accept Delay1
832 832  
833 -(% style="background-color:#dcdcdc" %)**AT+JN2DL**(%%)  : Join Accept Delay2
865 +**AT+JN2DL**  : Join Accept Delay2
834 834  
835 -(% style="background-color:#dcdcdc" %)**AT+PNM**(%%)  : Public Network Mode   
867 +**AT+PNM**  : Public Network Mode   
836 836  
837 -(% style="background-color:#dcdcdc" %)**AT+RX1DL**(%%)  : Receive Delay1      
869 +**AT+RX1DL**  : Receive Delay1      
838 838  
839 -(% style="background-color:#dcdcdc" %)**AT+RX2DL**(%%)  : Receive Delay2      
871 +**AT+RX2DL**  : Receive Delay2      
840 840  
841 -(% style="background-color:#dcdcdc" %)**AT+RX2DR**(%%)  : Rx2 Window Data Rate 
873 +**AT+RX2DR**  : Rx2 Window Data Rate 
842 842  
843 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ**(%%)  : Rx2 Window Frequency
875 +**AT+RX2FQ**  : Rx2 Window Frequency
844 844  
845 -(% style="background-color:#dcdcdc" %)**AT+TXP**(%%)  : Transmit Power
877 +**AT+TXP**  : Transmit Power
846 846  
847 -(% style="background-color:#dcdcdc" %)**AT+ MOD**(%%)  : Set work mode
879 +**AT+ MOD**  : Set work mode
848 848  
849 849  
850 850  (% style="color:#037691" %)**Information** 
851 851  
852 -(% style="background-color:#dcdcdc" %)**AT+RSSI**(%%)           : RSSI of the Last Received Packet   
884 +**AT+RSSI**           : RSSI of the Last Received Packet   
853 853  
854 -(% style="background-color:#dcdcdc" %)**AT+SNR**(%%)           : SNR of the Last Received Packet   
886 +**AT+SNR**           : SNR of the Last Received Packet   
855 855  
856 -(% style="background-color:#dcdcdc" %)**AT+VER**(%%)           : Image Version and Frequency Band       
888 +**AT+VER**           : Image Version and Frequency Band       
857 857  
858 -(% style="background-color:#dcdcdc" %)**AT+FDR**(%%)           : Factory Data Reset
890 +**AT+FDR**           : Factory Data Reset
859 859  
860 -(% style="background-color:#dcdcdc" %)**AT+PORT**(%%)  : Application Port    
892 +**AT+PORT**  : Application Port    
861 861  
862 -(% style="background-color:#dcdcdc" %)**AT+CHS**(%%)  : Get or Set Frequency (Unit: Hz) for Single Channel Mode
894 +**AT+CHS**  : Get or Set Frequency (Unit: Hz) for Single Channel Mode
863 863  
864 - (% style="background-color:#dcdcdc" %)**AT+CHE**(%%)  : Get or Set eight channels mode, Only for US915, AU915, CN470
896 + **AT+CHE**  : Get or Set eight channels mode, Only for US915, AU915, CN470
865 865  
866 866  
867 867  = ​4. FAQ =
... ... @@ -1004,3 +1004,4 @@
1004 1004  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1005 1005  * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]]
1006 1006  
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