Last modified by Mengting Qiu on 2024/04/02 16:44
<
From version < 28.4 >
edited by Xiaoling
on 2022/06/06 16:59
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  
... ... @@ -320,27 +320,34 @@
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  
360 +
361 +
362 +
363 +
328 328  Step 3: Create an account or log in Datacake.
329 329  
330 330  Step 4: Search the LSE01 and add DevEUI.
331 331  
332 332  
333 -[[image:1654505905236-553.png]]
369 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
334 334  
335 335  
372 +
336 336  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
337 337  
338 -[[image:1654505925508-181.png]]
339 339  
376 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
340 340  
341 341  
342 -== 2.7 Frequency Plans ==
343 343  
380 +1.
381 +11. Frequency Plans
382 +
344 344  The LSE01 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
345 345  
346 346  1.
... ... @@ -761,100 +761,100 @@
761 761  (% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD>=?**(%%)  : Get the value
762 762  
763 763  
764 -(% style="color:#037691" %)**General Commands**(%%)      
803 +(% style="color:#037691" %)**General Commands**      
765 765  
766 -(% style="background-color:#dcdcdc" %)**AT**(%%)  : Attention       
805 +**AT**  : Attention       
767 767  
768 -(% style="background-color:#dcdcdc" %)**AT?**(%%)  : Short Help     
807 +**AT?**  : Short Help     
769 769  
770 -(% style="background-color:#dcdcdc" %)**ATZ**(%%)  : MCU Reset    
809 +**ATZ**  : MCU Reset    
771 771  
772 -(% style="background-color:#dcdcdc" %)**AT+TDC**(%%)  : Application Data Transmission Interval 
811 +**AT+TDC**  : Application Data Transmission Interval 
773 773  
774 774  
775 775  (% style="color:#037691" %)**Keys, IDs and EUIs management**
776 776  
777 -(% style="background-color:#dcdcdc" %)**AT+APPEUI**(%%)              : Application EUI      
816 +**AT+APPEUI**              : Application EUI      
778 778  
779 -(% style="background-color:#dcdcdc" %)**AT+APPKEY**(%%)              : Application Key     
818 +**AT+APPKEY**              : Application Key     
780 780  
781 -(% style="background-color:#dcdcdc" %)**AT+APPSKEY**(%%)            : Application Session Key
820 +**AT+APPSKEY**            : Application Session Key
782 782  
783 -(% style="background-color:#dcdcdc" %)**AT+DADDR**(%%)              : Device Address     
822 +**AT+DADDR**              : Device Address     
784 784  
785 -(% style="background-color:#dcdcdc" %)**AT+DEUI**(%%)                   : Device EUI     
824 +**AT+DEUI**                   : Device EUI     
786 786  
787 -(% 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) 
788 788  
789 -(% 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  
790 790  
791 -(% style="background-color:#dcdcdc" %)**AT+CFM**(%%)  : Confirm Mode       
830 +**AT+CFM**  : Confirm Mode       
792 792  
793 -(% style="background-color:#dcdcdc" %)**AT+CFS**(%%)                     : Confirm Status       
832 +**AT+CFS**                     : Confirm Status       
794 794  
795 -(% style="background-color:#dcdcdc" %)**AT+JOIN**(%%)  : Join LoRa? Network       
834 +**AT+JOIN**  : Join LoRa? Network       
796 796  
797 -(% style="background-color:#dcdcdc" %)**AT+NJM**(%%)  : LoRa? Network Join Mode    
836 +**AT+NJM**  : LoRa? Network Join Mode    
798 798  
799 -(% style="background-color:#dcdcdc" %)**AT+NJS**(%%)                     : LoRa? Network Join Status    
838 +**AT+NJS**                     : LoRa? Network Join Status    
800 800  
801 -(% style="background-color:#dcdcdc" %)**AT+RECV**(%%)                  : Print Last Received Data in Raw Format
840 +**AT+RECV**                  : Print Last Received Data in Raw Format
802 802  
803 -(% style="background-color:#dcdcdc" %)**AT+RECVB**(%%)                : Print Last Received Data in Binary Format      
842 +**AT+RECVB**                : Print Last Received Data in Binary Format      
804 804  
805 -(% style="background-color:#dcdcdc" %)**AT+SEND**(%%)                  : Send Text Data      
844 +**AT+SEND**                  : Send Text Data      
806 806  
807 -(% style="background-color:#dcdcdc" %)**AT+SENB**(%%)                  : Send Hexadecimal Data
846 +**AT+SENB**                  : Send Hexadecimal Data
808 808  
809 809  
810 810  (% style="color:#037691" %)**LoRa Network Management**
811 811  
812 -(% style="background-color:#dcdcdc" %)**AT+ADR**(%%)          : Adaptive Rate
851 +**AT+ADR**          : Adaptive Rate
813 813  
814 -(% style="background-color:#dcdcdc" %)**AT+CLASS**(%%)  : LoRa Class(Currently only support class A
853 +**AT+CLASS**  : LoRa Class(Currently only support class A
815 815  
816 -(% style="background-color:#dcdcdc" %)**AT+DCS**(%%)  : Duty Cycle Setting 
855 +**AT+DCS**  : Duty Cycle Setting 
817 817  
818 -(% 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)     
819 819  
820 -(% style="background-color:#dcdcdc" %)**AT+FCD**(%%)  : Frame Counter Downlink       
859 +**AT+FCD**  : Frame Counter Downlink       
821 821  
822 -(% style="background-color:#dcdcdc" %)**AT+FCU**(%%)  : Frame Counter Uplink   
861 +**AT+FCU**  : Frame Counter Uplink   
823 823  
824 -(% style="background-color:#dcdcdc" %)**AT+JN1DL**(%%)  : Join Accept Delay1
863 +**AT+JN1DL**  : Join Accept Delay1
825 825  
826 -(% style="background-color:#dcdcdc" %)**AT+JN2DL**(%%)  : Join Accept Delay2
865 +**AT+JN2DL**  : Join Accept Delay2
827 827  
828 -(% style="background-color:#dcdcdc" %)**AT+PNM**(%%)  : Public Network Mode   
867 +**AT+PNM**  : Public Network Mode   
829 829  
830 -(% style="background-color:#dcdcdc" %)**AT+RX1DL**(%%)  : Receive Delay1      
869 +**AT+RX1DL**  : Receive Delay1      
831 831  
832 -(% style="background-color:#dcdcdc" %)**AT+RX2DL**(%%)  : Receive Delay2      
871 +**AT+RX2DL**  : Receive Delay2      
833 833  
834 -(% style="background-color:#dcdcdc" %)**AT+RX2DR**(%%)  : Rx2 Window Data Rate 
873 +**AT+RX2DR**  : Rx2 Window Data Rate 
835 835  
836 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ**(%%)  : Rx2 Window Frequency
875 +**AT+RX2FQ**  : Rx2 Window Frequency
837 837  
838 -(% style="background-color:#dcdcdc" %)**AT+TXP**(%%)  : Transmit Power
877 +**AT+TXP**  : Transmit Power
839 839  
840 -(% style="background-color:#dcdcdc" %)**AT+ MOD**(%%)  : Set work mode
879 +**AT+ MOD**  : Set work mode
841 841  
842 842  
843 843  (% style="color:#037691" %)**Information** 
844 844  
845 -(% style="background-color:#dcdcdc" %)**AT+RSSI**(%%)           : RSSI of the Last Received Packet   
884 +**AT+RSSI**           : RSSI of the Last Received Packet   
846 846  
847 -(% style="background-color:#dcdcdc" %)**AT+SNR**(%%)           : SNR of the Last Received Packet   
886 +**AT+SNR**           : SNR of the Last Received Packet   
848 848  
849 -(% style="background-color:#dcdcdc" %)**AT+VER**(%%)           : Image Version and Frequency Band       
888 +**AT+VER**           : Image Version and Frequency Band       
850 850  
851 -(% style="background-color:#dcdcdc" %)**AT+FDR**(%%)           : Factory Data Reset
890 +**AT+FDR**           : Factory Data Reset
852 852  
853 -(% style="background-color:#dcdcdc" %)**AT+PORT**(%%)  : Application Port    
892 +**AT+PORT**  : Application Port    
854 854  
855 -(% 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
856 856  
857 - (% 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
858 858  
859 859  
860 860  = ​4. FAQ =
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