Last modified by Bei Jinggeng on 2024/05/31 09:53
<
From version < 22.6 >
edited by Xiaoling
on 2022/06/06 16:48
To version < 11.4 >
edited by Xiaoling
on 2022/06/06 16:02
>
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Summary

Details

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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**:
... ... @@ -220,9 +220,10 @@
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) ===
225 -
226 226  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).
227 227  
228 228  For example, if the data you get from the register is 0x00 0xC8, the soil conductivity is 00C8(H) = 200(D) = 200 uS/cm.
... ... @@ -230,8 +230,8 @@
230 230  
231 231  Generally, the EC value of irrigation water is less than 800uS / cm.
232 232  
233 -1.
234 -11.
272 +1.
273 +11.
235 235  111. MOD
236 236  
237 237  Firmware version at least v2.1 supports changing mode.
... ... @@ -248,8 +248,8 @@
248 248  If** **payload =** **0x0A01, workmode=1
249 249  
250 250  
251 -1.
252 -11.
290 +1.
291 +11.
253 253  111. ​Decode payload in The Things Network
254 254  
255 255  While using TTN network, you can add the payload format to decode the payload.
... ... @@ -262,7 +262,7 @@
262 262  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/]]
263 263  
264 264  
265 -1.
304 +1.
266 266  11. Uplink Interval
267 267  
268 268  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:
... ... @@ -269,7 +269,7 @@
269 269  
270 270  [[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]]
271 271  
272 -1.
311 +1.
273 273  11. ​Downlink Payload
274 274  
275 275  By default, LSE50 prints the downlink payload to console port.
... ... @@ -302,7 +302,7 @@
302 302  
303 303  Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
304 304  
305 -1.
344 +1.
306 306  11. ​Show Data in DataCake IoT Server
307 307  
308 308  [[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:
... ... @@ -343,8 +343,8 @@
343 343  
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 -1.
347 -11.
385 +1.
386 +11.
348 348  111. EU863-870 (EU868)
349 349  
350 350  Uplink:
... ... @@ -375,8 +375,8 @@
375 375  869.525 - SF9BW125 (RX2 downlink only)
376 376  
377 377  
378 -1.
379 -11.
417 +1.
418 +11.
380 380  111. US902-928(US915)
381 381  
382 382  Used in USA, Canada and South America. Default use CHE=2
... ... @@ -421,8 +421,8 @@
421 421  923.3 - SF12BW500(RX2 downlink only)
422 422  
423 423  
424 -1.
425 -11.
463 +1.
464 +11.
426 426  111. CN470-510 (CN470)
427 427  
428 428  Used in China, Default use CHE=1
... ... @@ -467,8 +467,8 @@
467 467  505.3 - SF12BW125 (RX2 downlink only)
468 468  
469 469  
470 -1.
471 -11.
509 +1.
510 +11.
472 472  111. AU915-928(AU915)
473 473  
474 474  Default use CHE=2
... ... @@ -512,8 +512,8 @@
512 512  
513 513  923.3 - SF12BW500(RX2 downlink only)
514 514  
515 -1.
516 -11.
554 +1.
555 +11.
517 517  111. AS920-923 & AS923-925 (AS923)
518 518  
519 519  **Default Uplink channel:**
... ... @@ -565,8 +565,8 @@
565 565  923.2 - SF10BW125 (RX2)
566 566  
567 567  
568 -1.
569 -11.
607 +1.
608 +11.
570 570  111. KR920-923 (KR920)
571 571  
572 572  Default channel:
... ... @@ -602,8 +602,8 @@
602 602  921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
603 603  
604 604  
605 -1.
606 -11.
644 +1.
645 +11.
607 607  111. IN865-867 (IN865)
608 608  
609 609  Uplink:
... ... @@ -622,7 +622,7 @@
622 622  866.550 - SF10BW125 (RX2)
623 623  
624 624  
625 -1.
664 +1.
626 626  11. LED Indicator
627 627  
628 628  The LSE01 has an internal LED which is to show the status of different state.
... ... @@ -632,7 +632,7 @@
632 632  * Solid ON for 5 seconds once device successful Join the network.
633 633  * Blink once when device transmit a packet.
634 634  
635 -1.
674 +1.
636 636  11. Installation in Soil
637 637  
638 638  **Measurement the soil surface**
... ... @@ -659,7 +659,7 @@
659 659  
660 660  
661 661  
662 -1.
701 +1.
663 663  11. ​Firmware Change Log
664 664  
665 665  **Firmware download link:**
... ... @@ -678,7 +678,7 @@
678 678  
679 679  
680 680  
681 -1.
720 +1.
682 682  11. ​Battery Analysis
683 683  111. ​Battery Type
684 684  
... ... @@ -702,15 +702,15 @@
702 702  
703 703  
704 704  
705 -1.
706 -11.
744 +1.
745 +11.
707 707  111. ​Battery Note
708 708  
709 709  The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
710 710  
711 711  
712 -1.
713 -11.
751 +1.
752 +11.
714 714  111. ​Replace the battery
715 715  
716 716  If Battery is lower than 2.7v, user should replace the battery of LSE01.
... ... @@ -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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