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Version 167.1 by Mengting Qiu on 2025/06/09 10:23
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4 [[image:image-20240103165259-3.png||height="433" width="591"]]
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12 **Table of Contents:**
13
14 {{toc/}}
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28 = 1. Introduction =
29
30 == 1.1 ​What is SDI-12 to LoRaWAN Converter ==
31
32
33 (((
34 The Dragino (% style="color:blue" %)**SDI-12-LB/LS**(%%) is a (% style="color:blue" %)**SDI-12 to LoRaWAN Converter **(%%)designed for Smart Agriculture solution.
35 )))
36
37 (((
38 SDI-12 (Serial Digital Interface at 1200 baud) is an asynchronous [[serial communications>>url:https://en.wikipedia.org/wiki/Serial_communication]] protocol for intelligent sensors that monitor environment data. SDI-12 protocol is widely used in Agriculture sensor and Weather Station sensors.
39 )))
40
41 (((
42 SDI-12-LB/LS has SDI-12 interface and support 12v output to power external SDI-12 sensor. It can get the environment data from SDI-12 sensor and sends out the data via LoRaWAN wireless protocol.
43 )))
44
45 (((
46 The LoRa wireless technology used in SDI-12-LB/LS 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.
47 )))
48
49 (((
50 SDI-12-LB/LS is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%) or (% style="color:blue" %)**solar powered + Li-ion battery,**(%%) it is designed for long term use up to 5 years.
51 )))
52
53 (((
54 Each SDI-12-LB/LS 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.
55 )))
56
57
58 == ​1.2 Features ==
59
60
61 * LoRaWAN 1.0.3 Class A
62 * Ultra-low power consumption
63 * Controllable 3.3v, 5v and 12v output to power external sensor
64 * SDI-12 Protocol to connect to SDI-12 Sensor
65 * Monitor Battery Level
66 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
67 * Support Bluetooth v5.1 and LoRaWAN remote configure.
68 * Support wireless OTA update firmware
69 * Uplink on periodically
70 * Downlink to change configure
71 * 8500mAh Li/SOCl2 Battery (SDI-12-LB)
72 * Solar panel + 3000mAh Li-ion battery (SDI-12-LS)
73
74 == 1.3 Specification ==
75
76
77 (% style="color:#037691" %)**Micro Controller:**
78
79 * MCU: 48Mhz ARM
80 * Flash: 256KB
81 * RAM: 64KB
82
83 (% style="color:#037691" %)**Common DC Characteristics:**
84
85 * Supply Voltage: Built-in Battery, 2.5v ~~ 3.6v
86 * Support current: 5V 300mA, 12V 100mA
87 * Operating Temperature: -40 ~~ 85°C
88
89 (% style="color:#037691" %)**LoRa Spec:**
90
91 * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
92 * Max +22 dBm constant RF output vs.
93 * RX sensitivity: down to -139 dBm.
94 * Excellent blocking immunity
95
96 (% style="color:#037691" %)**Current Input Measuring :**
97
98 * Range: 0 ~~ 20mA
99 * Accuracy: 0.02mA
100 * Resolution: 0.001mA
101
102 (% style="color:#037691" %)**Voltage Input Measuring:**
103
104 * Range: 0 ~~ 30v
105 * Accuracy: 0.02v
106 * Resolution: 0.001v
107
108 (% style="color:#037691" %)**Battery:**
109
110 * Li/SOCI2 un-chargeable battery
111 * Capacity: 8500mAh
112 * Self-Discharge: <1% / Year @ 25°C
113 * Max continuously current: 130mA
114 * Max boost current: 2A, 1 second
115
116 (% style="color:#037691" %)**Power Consumption**
117
118 * Sleep Mode: 5uA @ 3.3v
119 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
120
121 == 1.4 Connect to SDI-12 Sensor ==
122
123
124 [[image:1675212538524-889.png||_mstalt="298272"]]
125
126
127 == 1.5 Sleep mode and working mode ==
128
129
130 (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
131
132 (% style="color:blue" %)**Working Mode: **(%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
133
134
135 == 1.6 Button & LEDs ==
136
137
138 [[image:image-20250416151419-4.jpeg]]
139
140 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
141 |=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 226px;background-color:#4F81BD;color:white" %)**Action**
142 |(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT between 1s < time < 3s|(% style="background-color:#f2f2f2; width:117px" %)Send an uplink|(% style="background-color:#f2f2f2; width:225px" %)(((
143 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
144 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
145 )))
146 |(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT for more than 3s|(% style="background-color:#f2f2f2; width:117px" %)Active Device|(% style="background-color:#f2f2f2; width:225px" %)(((
147 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
148 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
149 Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
150 )))
151 |(% style="background-color:#f2f2f2; width:167px" %)Fast press ACT 5 times.|(% style="background-color:#f2f2f2; width:117px" %)Deactivate Device|(% style="background-color:#f2f2f2; width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means SDI-12-LB/LS is in Deep Sleep Mode.
152
153 == 1.7 Pin Mapping ==
154
155
156 [[image:1675213198663-754.png||_mstalt="297167"]]
157
158
159 == 1.8 BLE connection ==
160
161
162 SDI-12-LB/LS support BLE remote configure.
163
164 BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
165
166 * Press button to send an uplink
167 * Press button to active device.
168 * Device Power on or reset.
169
170 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
171
172
173 == 1.9 Mechanical ==
174
175 === 1.9.1 for LB version ===
176
177
178 [[image:image-20250416151406-3.jpeg]]
179
180
181 === 1.9.2 for LS version ===
182
183
184 [[image:image-20250329133856-1.jpeg]]
185
186
187 = 2. Configure SDI-12 to connect to LoRaWAN network =
188
189 == 2.1 How it works ==
190
191
192 The SDI-12-LB/LS is configured as (% style="color:#037691" %)**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 activate the SDI-12-LB/LS. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
193
194
195 == 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
196
197
198 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 [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
199
200 [[image:image-20250416151346-2.png]]
201
202
203 The LPS8V2 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.
204
205
206 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from SDI-12-LB/LS.
207
208 Each SDI-12-LB/LS is shipped with a sticker with the default device EUI as below:
209
210 [[image:image-20230426084456-1.png||height="241" width="519"]]
211
212
213 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
214
215 **Create the application.**
216
217 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SAC01L_LoRaWAN_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20250423093843-1.png?width=756&height=264&rev=1.1||alt="image-20250423093843-1.png"]]
218
219 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111305-2.png?width=1000&height=572&rev=1.1||alt="image-20240907111305-2.png"]]
220
221
222 **Add devices to the created Application.**
223
224 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111659-3.png?width=977&height=185&rev=1.1||alt="image-20240907111659-3.png"]]
225
226 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111820-5.png?width=975&height=377&rev=1.1||alt="image-20240907111820-5.png"]]
227
228
229 **Enter end device specifics manually.**
230
231 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112136-6.png?width=697&height=687&rev=1.1||alt="image-20240907112136-6.png"]]
232
233
234 **Add DevEUI and AppKey.**
235
236 **Customize a platform ID for the device.**
237
238 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112427-7.png?rev=1.1||alt="image-20240907112427-7.png"]]
239
240
241 (% style="color:blue" %)**Step 2: **(%%)Add decoder
242
243 While using TTN network, you can add the payload format to decode the payload.
244
245 There is no fix payload decoder in LoRaWAN server because the SDI-12 sensors returns are different. User need to write the decoder themselves for their case.
246
247 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
248
249 Below is TTN screen shot:
250
251 [[image:image-20241118165746-3.png||height="470" width="869"]]
252
253 [[image:image-20241118165832-4.png||height="336" width="724"]]
254
255
256 (% style="color:blue" %)**Step 3**(%%): Activate on SDI-12-LB/LS
257
258 Press the button for 5 seconds to activate the SDI-12-LB/LS.
259
260 (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode** (%%)for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
261
262 [[image:1675213704414-644.png||_mstalt="293748"]]
263
264
265 == ​2.3 SDI-12 Related Commands ==
266
267
268 User need to configure SDI-12-LB/LS to communicate with SDI-12 sensors otherwise the uplink payload will only include a few bytes.
269
270 If you use UART to connect a computer, refer to the following connection methods:
271
272 [[image:image-20240823165402-1.jpeg||height="488" width="678"]]
273
274 Screenshot example:
275
276 [[image:image-20240823165526-2.png||height="489" width="690"]]
277
278
279
280 === 2.3.1 Basic SDI-12 debug command ===
281
282
283 User can run some basic SDI-12 command to debug the connection to the SDI-12 sensor. These commands can be sent via AT Command or LoRaWAN downlink command.
284
285 If SDI-12 sensor return value after get these commands, //SDI-12-LB/LS// will uplink the return on FPORT=100, otherwise, if there is no response from SDI-12 sensor. //SDI-12-LB/LS// will uplink NULL (0x 4E 55 4C 4C) to server.
286
287 The following is the display information on the serial port and the server.
288
289
290 [[image:image-20230201091027-6.png||_mstalt="429065"]]
291
292
293 [[image:image-20230201091027-7.png||_mstalt="429429" height="261" width="1179"]]
294
295
296
297 ==== (% style="color:blue" %)**al!  ~-~- Get SDI-12 sensor Identification**(%%) ====
298
299
300 * AT Command: AT+ADDRI=aa
301 * LoRaWAN Downlink(prefix 0xAA00): AA 00 aa
302
303 (% style="color:#037691" %)**Parameter:  **(%%)aa: ASCII value of SDI-12 sensor address in downlink or HEX value in AT Command)
304
305 (% style="color:blue" %)**Example :   **(%%)AT+ADDRI=0 ( Equal to downlink: 0x AA 00 30)
306
307
308 The following is the display information on the serial port and the server.
309
310
311 [[image:image-20230201091257-8.png||_mstalt="431392"]]
312
313
314 [[image:image-20230201091257-9.png||_mstalt="431756" height="225" width="1242"]]
315
316
317 ==== (% style="color:blue" %)**aM!,aMC!, aM1!- aM9!, aMC1!- aMC9!**(%%) ====
318
319
320 (% style="color:red" %)**aM! **(%%): Start Non-Concurrent Measurement
321
322 (% style="color:red" %)**aMC! **(%%): Start Non-Concurrent Measurement – Request CRC
323
324 (% style="color:red" %)**aM1!- aM9! **(%%): Additional Measurements
325
326 (% style="color:red" %)**aMC1!- aMC9!**(%%) : Additional Measurements – Request CRC
327
328
329 * AT Command : AT+ADDRM=0,1,0,1
330
331 * LoRaWAN Downlink(prefix 0xAA01): 0xAA 01 30 01 00 01
332
333 Downlink：AA 01 aa bb cc dd
334
335 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
336
337 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
338
339 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
340
341 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%) to get return.
342
343
344 The following is the display information on the serial port and the server.
345
346
347 [[image:image-20230201091630-10.png||_mstalt="449995"]]
348
349
350 [[image:image-20230201091630-11.png||_mstalt="450372" height="247" width="1165"]]
351
352
353
354 ==== (% style="color:blue" %)**aC!, aCC!,  aC1!- aC9!,  aCC1!- aCC9! **(%%) ====
355
356
357 (% style="color:red" %)**aC!**(%%) : Start Concurrent Measurement
358
359 (% style="color:red" %)**aCC!** (%%): Start Concurrent Measurement – Request CRC
360
361 (% style="color:red" %)**aC1!- aC9!**(%%) : Start Additional Concurrent Measurements
362
363 (% style="color:red" %)**aCC1!- aCC9!**(%%) : Start Additional Concurrent Measurements – Request CRC
364
365
366 * AT Command : AT+ADDRC=0,1,0,1 
367
368 * LoRaWAN Downlink(0xAA02): 0xAA 02 30 01 00 01
369
370 Downlink: AA 02 aa bb cc dd
371
372 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
373
374 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
375
376 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
377
378 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%)__ __to get return.
379
380
381 The following is the display information on the serial port and the server.
382
383
384 [[image:image-20230201091954-12.png||_mstalt="453687"]]
385
386
387 [[image:image-20230201091954-13.png||_mstalt="454064" height="203" width="1117"]]
388
389
390
391 ==== (% style="color:blue" %)**aR0!- aR9!,  aRC0!- aRC9!**(%%) ====
392
393
394 Start Continuous Measurement
395
396 Start Continuous Measurement – Request CRC
397
398
399 * AT Command : AT+ADDRR=0,1,0,1 
400 * LoRaWAN Downlink (0xAA 03): 0xAA 03 30 01 00 01
401
402 Downlink: AA 03 aa bb cc dd
403
404 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
405
406 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
407
408 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
409
410 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%) to get return.
411
412
413 The following is the display information on the serial port and the server.
414
415
416 [[image:image-20230201092208-14.png||_mstalt="452283"]]
417
418
419 [[image:image-20230201092208-15.png||_mstalt="452660" height="214" width="1140"]]
420
421
422 === 2.3.2 Advance SDI-12 Debug command ===
423
424
425 This command can be used to debug all SDI-12 command.
426
427
428 LoRaWAN Downlink: A8 aa xx xx xx xx bb cc dd
429
430 (% style="color:#037691" %)**aa **(%%): total SDI-12 command length
431
432 (% style="color:#037691" %)**xx **(%%): SDI-12 command
433
434 (% style="color:#037691" %)**bb **(%%): Delay to wait for return
435
436 (% style="color:#037691" %)**cc **(%%): 0: don't uplink return to LoRaWAN, 1: Uplink return to LoRaWAN on FPORT=100
437
438 (% style="color:#037691" %)**dd: **(%%) 0: Do not use aD0! command access, 1: use aD0! command access.
439
440
441 (% style="color:blue" %)**Example1: **(%%) AT+CFGDEV =0RC0!,1
442
443 (% style="color:#037691" %)**0RC0! **(%%): SDI-12 Command,
444
445 (% style="color:#037691" %)**1 **(%%): Delay 1 second.  ( 0: 810 mini-second)
446
447 Equal Downlink: 0xA8 05 30 52 43 30 21 01 01
448
449
450 The following is the display information on the serial port and the server.
451
452
453 [[image:image-20230201092355-16.png||_mstalt="453960"]]
454
455
456 [[image:image-20230201092355-17.png||_mstalt="454337" height="426" width="1135"]]
457
458
459 (% style="color:blue" %)**Example2: **(%%) AT+CFGDEV =0M!,1,1
460
461 (% style="color:#037691" %)**0M! **(%%): SDI-12 Command,
462
463 (% style="color:#037691" %)**1 **(%%): Delay 1 second.  ( 0: 810 mini-second)
464
465 (% style="color:#037691" %)**1 **(%%): Use aD0! command access.
466
467 Equal Downlink: 0xA8 03 30  4D 21 01 01 01
468
469
470 The following is the display information on the serial port and the server.
471
472
473 [[image:image-20230628091055-1.png||height="368" width="462"]]
474
475 [[image:image-20230628091130-2.png||height="258" width="879"]]
476
477
478 === 2.3.3 Convert ASCII to String ===
479
480
481 This command is used to convert between ASCII and String format.
482
483 AT+CONVFORM ( Max length: 80 bytes)
484
485
486 (% style="color:blue" %)**Example:**
487
488 1) AT+CONVFORM=0, string Convert String from String to ASCII
489
490 [[image:1675214845056-885.png||_mstalt="297622"]]
491
492
493 2) AT+CONVFORM=1, ASCII Convert ASCII to String.
494
495 [[image:1675214856590-846.png||_mstalt="297739"]]
496
497
498 === 2.3.4 Define periodically SDI-12 commands and uplink. ===
499
500
501 AT+COMMANDx & AT+DATACUTx**&AT+DATACONVx**
502
503 User can define max 15 SDI-12 Commands (AT+COMMAND1 ~~ AT+COMMANDF). On each uplink period (TDC time, default 20 minutes), SDI-12-LB/LS will send these SDI-12 commands and wait for return from SDI-12 sensors. SDI-12-LB/LS will then combine these returns and uplink via LoRaWAN.
504
505
506 * (% style="color:blue" %)**AT Command:**
507
508 (% style="color:#037691" %)**AT+COMMANDx=var1,var2,var3,var4.**
509
510 (% style="color:red" %)**var1**(%%): SDI-12 command , for example: 0RC0!
511
512 (% style="color:red" %)**var2**(%%): Wait timeout for return. (unit: second)
513
514 (% style="color:red" %)**var3**(%%): Whether to send //addrD0!// to get return after var2 timeout. 0: Don't Send //addrD0! //; 1: Send //addrD0!//. (% style="color:red" %)**2: The returned data will not be clipped.(since v1.3.0)**
515
516 (% style="color:red" %)**(When set to 2, AT+ALDATAMOD=1 does not intercept data returned by the current COMMAND command.)**
517
518 (% style="color:red" %)**var4**(%%): validation check for return. If return invalid, SDI-12-LB/LS will resend this command. Max 3 retries.
519
520 (% style="color:red" %)**0 **(%%) No validation check;
521
522 (% style="color:red" %)**1** (%%) Check if return chars are printable char(0x20 ~~ 0x7E);
523
524 (% style="color:red" %)**2**(%%)  Check if there is return from SDI-12 sensor
525
526 (% style="color:red" %)**3** (%%) Check if return pass CRC check ( SDI-12 command var1 must include CRC request);
527
528
529 Each AT+COMMANDx is followed by a (% style="color:blue" %)**AT+DATACUT**(%%) command. AT+DATACUT command is used to take the useful string from the SDI-12 sensor so the final payload will have the minimum length to uplink.
530
531
532 (% style="color:blue" %)**AT+DATACUTx**(%%) : This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
533
534 (% border="1" style="width:436px" %)
535 |(% style="background-color:#f2f2f2; width:433px" %)(((
536 (% style="color:#0070c0" %)**AT+DATACUTx=a,b,c**
537
538 **a**:  length for the return of AT+COMMAND
539
540 **b**: 1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
541
542 **c**:  define the position for valid value. 
543 )))
544
545 For example, if return from AT+COMMAND1 is “013METER   TER12 112T12-00024895<CR><LF>” , Below AT+DATACUT1 will get different result to combine payload:
546
547
548 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
549 |=(% style="width: 164px;background-color:#4F81BD;color:white" %)**AT+DATACUT1 value**|=(% style="width: 346px;background-color:#4F81BD;color:white" %)**Final Result to combine Payload**
550 |(% style="background-color:#f2f2f2; width:164px" %)34,1,1+2+3|(% style="background-color:#f2f2f2; width:344px" %)0D 00 01 30 31 33
551 |(% style="background-color:#f2f2f2; width:164px" %)34,2,1~~8+12~~16|(% style="background-color:#f2f2f2; width:344px" %)0D 00 01 30 31 33 4D 45 54 45 52 54 45 52 31 32
552 |(% style="background-color:#f2f2f2; width:164px" %)34,2,1~~34|(% style="background-color:#f2f2f2; width:344px" %)0D 00 01 30 31 33 4D 45 54 45 52 20 20 20 54 45 52 31 32 20 31 31 32 54 31 32 2D 30 30 30 32 34 38 39 35 0D 0A
553
554 * (% style="color:blue" %)** Downlink Payload:**
555
556 (% style="color:blue" %)**0xAF**(%%)  downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
557
558
559 (% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
560
561
562 Format: ** (% style="color:#037691" %)AF MM NN LL XX XX XX XX YY(%%)**
563
564 Where:
565
566 * (% style="color:#037691" %)**MM **(%%): the AT+COMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
567 * (% style="color:#037691" %)**NN **(%%):  1: set the AT+COMMAND value ; 2: set the AT+DATACUT value.
568 * (% style="color:#037691" %)**LL **(%%):  The length of AT+COMMAND or AT+DATACUT command
569 * (% style="color:#037691" %)**XX XX XX XX **(%%): AT+COMMAND or AT+DATACUT command
570 * (% style="color:#037691" %)**YY **(%%):  If YY=0, SDI-12-LB/LS will execute the downlink command without uplink; if YY=1, SDI-12-LB/LS will execute an uplink after got this command. 
571
572 (% style="color:blue" %)**Example:**
573
574 [[image:image-20230201094129-18.png||_mstalt="455065"]]
575
576
577
578 (% style="color:blue" %)**Clear SDI12 Command**
579
580 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
581
582
583 * (% style="color:#037691" %)**AT Command:**
584
585 (% style="color:#4f81bd" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
586
587
588 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
589
590
591 * (% style="color:#037691" %)**Downlink Payload:**
592
593 (% style="color:#4f81bd" %)**0x09 aa bb**(%%)  same as AT+CMDEAR=aa,bb
594
595
596
597 (% style="color:blue" %)**command combination**
598
599 Below shows a screen shot how the results combines together to a uplink payload.
600
601 [[image:1675215745275-920.png||_mstalt="295334"]]
602
603
604 If user don't want to use DATACUT for some command, he simply want to uplink all returns. AT+ALLDATAMOD can be set to 1.
605
606 (% style="color:blue" %)**AT+ALLDATAMOD**(%%) will simply get all return and don't do CRC check as result for SDI-12 command. AT+DATACUTx command has higher priority, if AT+DATACUTx has been set, AT+ALLDATAMOD will be ignore for this SDI-12 command.
607
608
609 (% style="color:#4f81bd" %)**For example: **(%%) as below photo, AT+ALLDATAMOD=1, but AT+DATACUT1 has been set, AT+DATACUT1 will be still effect the result.
610
611
612 [[image:1675215782925-448.png||_mstalt="297466"]]
613
614
615 If AT+ALLDATAMOD=1, (% style="color:#4f81bd" %)**FX,X**(%%) will be added in the payload, FX specify which command is used and X specify the length of return. for example in above screen, F1 05 means the return is from AT+COMMAND1 and the return is 5 bytes.
616
617
618 (% style="color:blue" %)**Compose Uplink**
619
620 (% style="color:#4f81bd" %)**AT+DATAUP=0**
621
622 Compose the uplink payload with value returns in sequence and send with **__A SIGNLE UPLINK__**.
623
624 Final Payload is **__Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx__**
625
626 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
627
628
629 [[image:1675215828102-844.png||_mstalt="294645"]]
630
631
632 (% style="color:#4f81bd" %)**AT+DATAUP=1**
633
634 Compose the uplink payload with value returns in sequence and send with **__Multiply UPLINKs__**.
635
636 Final Payload is __**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**__
637
638 1. Battery Info (2 bytes): Battery voltage
639 1. PAYVER (1 byte): Defined by AT+PAYVER
640 1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
641 1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
642 1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
643
644 [[image:1675215848113-696.png||_mstalt="296998"]]
645
646
647 (% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
648
649 * For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
650 * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
651 * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
652 * For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
653
654 (% style="color:red" %)**When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
655
656 (% style="color:red" %)**When AT+DATAUP=1 and AT+ADR=0, the maximum number of bytes of each payload is determined by the DR value.**
657
658
659
660 (% style="color:blue" %)**Automatically converts polled data to hex format for uplinking(Since v1.3.0)**
661
662
663 This command can retrieve the returned data, convert the number after the positive or negative sign into a data, and then set the number of bytes to upload the data.
664
665
666 * (% style="color:blue" %)**AT Command:**
667
668 The maximum number can be set to 5 groups and the format of the command is as follows：
669
670 (% style="color:#037691" %)**Example 1:AT+DATACONVx=var1, var2**
671
672 (% style="color:#037691" %)**Example 2:AT+DATACONVx=var1, var2+ var3, var4**
673
674 (% style="color:#037691" %)**Example 3:AT+DATACONVx=var1, var2+ var3, var4+ var5, var6**
675
676 (% style="color:#037691" %)**Example 4:AT+DATACONVx=var1, var2+ var3, var4+ var5, var6+ var7, var8**
677
678 (% style="color:#037691" %)**Example 5:AT+DATACONVx=var1, var2+ var3, var4+ var5, var6+ var7, var8+ var9, var10**
679
680 (% style="color:red" %)**Notice: Among them, var1, var3, var5, var7, and var9 are the data to be selected for conversion, and var2, var4, var6, var8, and var10 are the number of bytes to be uploaded. The values of var2, var4, var6, var8, and var10 range from 1 to 4.**
681
682 * (% style="color:blue" %)**Downlink Command:**
683
684 Format: Command code (0xAC) followed by up to 20 bytes.
685
686
687 Example 1 1:AT+DATACONVx=var1, var2   
688
689 Downlink Command：AC x var1  var2
690
691 Example 1 2:AT+DATACONVx=var1, var2+ var3, var4 
692
693 Downlink Command：AC x var1  var2  var3 var4
694
695 Example 1 3:AT+DATACONVx=var1, var2+ var3, var4+ var5, var6
696
697 Downlink Command：AC x var1  var2  var3 var4 var5 var6
698
699 Example 1 4:AT+DATACONVx=var1, var2+ var3, var4+ var5, var6+ var7, var8
700
701 Downlink Command：AC x var1  var2  var3 var4 var5 var6 var7 var8
702
703 Example 1 5:AT+DATACONVx=var1, var2+ var3, var4+ var5, var6+ var7, var8+ var9, var10
704
705 Downlink Command：AC x var1  var2  var3 var4 var5 var6 var7 var8 var9 var10
706
707
708 Example:
709
710 * Example 1: Downlink Payload: AC 01 01 02 02 02  ~/~/  AT+DATACONV1=1,2+2,2 
711 * Example 2: Downlink Payload: AC 02 01 02 02 02 03 02  ~/~/  AT+DATACONV2=1,2+2,2+3,2
712
713
714
715
716 **For example:**
717
718 This is my configuration:
719
720 [[image:image-20250605091006-1.png]]
721
722
723 * AT+COMMAND1=0C!,0,2,0  After sending the concurrent command of device 0, the data will not be cut, and the next command will be sent immediately.
724 * AT+COMMAND2=0M!,1,2,0  After sending the concurrent command of device 0, do not cut the data and wait for one second. (The last concurrent command needs to wait for the measurement time of all sensors)
725 * AT+COMMAND3=0D0!,0,0,0  Query the data measured by device 0
726
727 This is the data obtained:
728
729 [[image:image-20250516145402-2.png]]
730
731
732 When using the AT+DATACONVx command,
733
734 The data of RETURN3 will be converted into 2 data, the first data is +95, and the second data is +260.
735
736 * AT+DATACONV3=1,2+2,2  The first data is uploaded as 2 bytes and the second data is uploaded as 2 bytes. The form converted to hexadecimal is as shown above,as below:
737
738 [[image:image-20250516144559-1.png]]
739
740 0C90 01 005F 0104
741
742 (% style="color:#037691" %)**BAT**(%%): 0x0c90 = 3216mV = 3.216V
743
744 (% style="color:#037691" %)**Payload Version**(%%): 0x01, Means: v1.0 version
745
746 (% style="color:#037691" %)**Data 1: **(%%)0x005F(H) = 95(D) / 100 = 0.95
747
748 (% style="color:#037691" %)**Data 2: **(%%)0x0104(H) = 260(D) / 10 = 26.0
749
750
751 == 2.4 Uplink Payload ==
752
753 === 2.4.1 Device Payload, FPORT~=5 ===
754
755
756 Include device configure status. Once SDI-12-LB/LS Joined the network, it will uplink this message to the server.
757
758 Users can also use the downlink command(0x26 01) to ask SDI-12-LB/LS to resend this uplink.
759
760 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
761 |(% colspan="6" style="background-color:#4f81bd; color:white" %)**Device Status (FPORT=5)**
762 |(% style="background-color:#f2f2f2; width:103px" %)**Size (bytes)**|(% style="background-color:#f2f2f2; width:72px" %)**1**|(% style="background-color:#f2f2f2" %)**2**|(% style="background-color:#f2f2f2; width:91px" %)**1**|(% style="background-color:#f2f2f2; width:86px" %)**1**|(% style="background-color:#f2f2f2; width:44px" %)**2**
763 |(% style="background-color:#f2f2f2; width:103px" %)**Value**|(% style="background-color:#f2f2f2; width:72px" %)Sensor Model|(% style="background-color:#f2f2f2" %)Firmware Version|(% style="background-color:#f2f2f2; width:91px" %)Frequency Band|(% style="background-color:#f2f2f2; width:86px" %)Sub-band|(% style="background-color:#f2f2f2; width:44px" %)BAT
764
765 Example parse in TTNv3
766
767 [[image:1675215946738-635.png||_mstalt="297778"]]
768
769
770 (% style="color:#037691" %)**Sensor Model**(%%): For SDI-12-LB/LS, this value is 0x17
771
772 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
773
774 (% style="color:#037691" %)**Frequency Band**:
775
776 0x01: EU868
777
778 0x02: US915
779
780 0x03: IN865
781
782 0x04: AU915
783
784 0x05: KZ865
785
786 0x06: RU864
787
788 0x07: AS923
789
790 0x08: AS923-1
791
792 0x09: AS923-2
793
794 0x0a: AS923-3
795
796 0x0b: CN470
797
798 0x0c: EU433
799
800 0x0d: KR920
801
802 0x0e: MA869
803
804
805 (% style="color:#037691" %)**Sub-Band**:
806
807 AU915 and US915:value 0x00 ~~ 0x08
808
809 CN470: value 0x0B ~~ 0x0C
810
811 Other Bands: Always 0x00
812
813
814 (% style="color:#037691" %)**Battery Info**:
815
816 Check the battery voltage.
817
818 Ex1: 0x0B45 = 2885mV
819
820 Ex2: 0x0B49 = 2889mV
821
822
823 === 2.4.2 Uplink Payload, FPORT~=2 ===
824
825
826 There are different cases for uplink. See below
827
828 * SDI-12 Debug Command return: FPORT=100
829
830 * Periodically Uplink: FPORT=2
831
832 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
833 |=(% style="width: 90px;background-color:#4F81BD;color:white" %)(((
834 **Size(bytes)**
835 )))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 240px;background-color:#4F81BD;color:white" %)**Length depends on the return from the commands**
836 |(% style="width:93px" %)Value|(% style="width:83px" %)(((
837 Battery(mV)
838 &
839 Interrupt_Flag
840 )))|(% style="width:91px" %)[[PAYLOAD_VER>>||anchor="H3.6Setthepayloadversion"]]|(% style="width:212px" %)(((
841 If the valid payload is too long and exceed the maximum support.
842 Payload length in server,server will show payload not provided in the LoRaWAN server.
843 )))
844
845 [[image:1675216282284-923.png||_mstalt="295633"]]
846
847
848 === 2.4.3 Battery Info ===
849
850
851 Check the battery voltage for SDI-12-LB/LS.
852
853 Ex1: 0x0B45 = 2885mV
854
855 Ex2: 0x0B49 = 2889mV
856
857
858 === 2.4.4 Interrupt Pin ===
859
860
861 This data field shows if this packet is generated by (% style="color:#037691" %)**Interrupt Pin**(%%) or not. [[Click here>>||anchor="H3.2SetInterruptMode"]] for the hardware and software set up. Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.7PinMapping"]].
862
863 **Example:**
864
865 Ex1: 0x0B45:0x0B&0x80= 0x00    Normal uplink packet.
866
867 Ex2: 0x8B49:0x8B&0x80= 0x80    Interrupt Uplink Packet.
868
869
870 === 2.4.5 Payload version ===
871
872
873 The version number of the payload, mainly used for decoding. The default is 01.
874
875
876 === 2.4.6 ​Decode payload in The Things Network ===
877
878
879 While using TTN network, you can add the payload format to decode the payload.
880
881 [[image:1675216779406-595.png||_mstalt="298376"]]
882
883
884 There is no fix payload decoder in LoRaWAN server because the SDI-12 sensors returns are different. User need to write the decoder themselves for their case.
885
886 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
887
888
889 == 2.5 Uplink Interval ==
890
891
892 The SDI-12-LB/LS by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link:
893
894 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H4.1ChangeUplinkInterval>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H4.1ChangeUplinkInterval]]
895
896
897 == 2.6 Examples To Set SDI commands ==
898
899 === 2.6.1 Examples 1 ~-~- General Example ===
900
901
902 COM port and SDI-12 sensor communication converted to SDI-12-LB/LS and SDI-12 sensor communication.
903
904 [[image:image-20230222143809-1.png||_mstalt="429962" height="564" width="729"]]
905
906
907 (% style="color:blue" %)**1) The AT+COMMANDx command is applied to the red arrow part, and sends the SDI12 command to the SDI12 sensor:**
908
909 a. Send the first command and get the first reply：
910
911 (% style="color:#037691" %)**AT+COMMANDx=1I!,0,0,1**
912
913 b. Send the second command and get the second reply：
914
915 (% style="color:#037691" %)**AT+COMMANDx=2I!,0,0,1**
916
917 c. Send the third command and get the third reply：
918
919 (% style="color:#037691" %)**AT+COMMANDx=3I!,0,0,1**
920
921 d. Send the fourth command and get the fourth reply：
922
923 (% style="color:#037691" %)**AT+COMMANDx=4I!,0,0,1**
924
925 e. Send the fifth command plus the sixth command, get the sixth reply：
926
927 (% style="color:#037691" %)**AT+COMMANDx=1M!,2,1,1**
928
929 f. Send the seventh command plus the eighth command, get the eighth reply：
930
931 (% style="color:#037691" %)**AT+COMMANDx=2M!,2,1,1**
932
933 g. Send the ninth command plus the tenth command, get the tenth reply：
934
935 (% style="color:#037691" %)**AT+COMMANDx=3M!,1,1,1**
936
937 h. Send the eleventh command plus the twelfth command, get the twelfth reply：
938
939 (% style="color:#037691" %)**AT+COMMANDx=4M!,1,1,1**
940
941
942 (% style="color:blue" %)**2) The AT+DATACUTx command is applied to the green arrow part, receiving and cut out data from the SDI12 sensor:**
943
944 a. The first reply, all 34 characters: ”113TRUEBNERSMT100038220303182331<CR><LF>”
945
946 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=34,2,1~~34**(% style="color:#037691" %);
947
948 b. The sixth reply, all 31 characters: "1+19210+1.04+0.00+22.49+11.75<CR><LF>"
949
950 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
951
952 c. The eighth reply, all 31 characters: "2+18990+1.08+0.00+22.24+11.80<CR><LF>"
953
954 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
955
956 d. The tenth reply, all 15 characters: "3-2919.8+24.0<CR><LF>"
957
958 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=15,2,1~~15**(% style="color:#037691" %);
959
960 e. The twelfth reply, all 25 characters: "4+30.8+22.84+4.7+954.38<CR><LF>"
961
962 Partial cut, the cut sensor address and the first two parameters:(% style="color:#037691" %)**AT+DATACUTx=25,2,1~~12, cut out the character field "4+30.8+22.84"**.
963
964
965 === 2.6.2 Example 2 ~-~- Connect to Hygrovue10 ===
966
967 ==== 2.6.2.1 Reference Manual and Command ====
968
969
970 * [[Hygrovue10 Product Page>>https://www.campbellsci.com/hygrovue10]]
971
972 * Commands to be used in PC and output.
973
974 ~1. check device address
975
976 2. change device address
977
978 3. check device ID
979
980 4. start measure
981
982 5. Get Meausre result
983
984 [[image:image-20230603120209-2.png||height="281" width="267"]]
985
986
987 ==== 2.6.2.2 Hardware Connection to SDI-12-LB/LS ====
988
989
990 [[image:image-20230603120515-3.png]]
991
992
993 ==== 2.6.2.3 Commands set in SDI-12-LB/LS and uplink payload ====
994
995
996 [[image:image-20230603120648-4.png]]
997
998 [[image:image-20230603120726-5.png]]
999
1000
1001 **Data in TTN:**
1002
1003 [[image:image-20230603120859-6.png||height="118" width="1285"]]
1004
1005
1006 === 2.6.3 Example 3 ~-~- Connect to SIL-400 ===
1007
1008 ==== 2.6.3.1 Reference Manual and Command ====
1009
1010
1011 * [[SIL-400 Product Page>>https://www.apogeeinstruments.com/sil-411-commercial-grade-sdi-12-digital-output-standard-field-of-view-infrared-radiometer-sensor/]]
1012
1013 * Commands to be used in PC and output.
1014
1015 ~1. check device address
1016
1017 2. change device address
1018
1019 3. check device ID
1020
1021 4. start measure
1022
1023 5. Get Meausre result
1024
1025 [[image:image-20230603121606-7.png||height="242" width="307"]]
1026
1027
1028 ==== 2.6.3.2 Hardware Connection to SDI-12-LB/LS ====
1029
1030
1031 [[image:image-20230603121643-8.png||height="442" width="656"]]
1032
1033
1034 ==== 2.6.3.3 Commands set in SDI-12-LB/LS and uplink payload ====
1035
1036
1037 [[image:image-20230603121721-9.png]]
1038
1039 [[image:image-20230628090323-1.png||height="414" width="694"]]
1040
1041 Data in TTN:
1042
1043 [[image:image-20230603121826-11.png||height="155" width="1104"]]
1044
1045
1046 === 2.6.4 Example 4 ~-~- Connect to TEROS-12 ===
1047
1048 ==== 2.6.4.1 Reference Manual and Command ====
1049
1050
1051 * [[TEROS-12 Product Page>>https://www.metergroup.com/en/meter-environment/products/teros-12-soil-moisture-sensor]]
1052
1053 * Commands to be used in PC and output.
1054
1055 1.check device address
1056
1057 2.change device address
1058
1059 3.check device ID
1060
1061 4.start measure
1062
1063 5.Get Meausre result
1064
1065 [[image:image-20230603122248-16.png||height="196" width="198"]]
1066
1067
1068 ==== 2.6.4.2 Hardware Connection to SDI-12-LB/LS ====
1069
1070
1071 [[image:image-20230603122212-15.png||height="502" width="667"]]
1072
1073
1074 ==== 2.6.4.3 Commands set in SDI-12-LB/LS and uplink payload ====
1075
1076
1077 [[image:image-20230603122040-12.png]]
1078
1079 [[image:image-20230603122109-13.png||height="469" width="762"]]
1080
1081
1082 **Data in TTN:**
1083
1084 [[image:image-20230603122139-14.png||height="148" width="1128"]]
1085
1086
1087 === 2.6.5 Example 5 ~-~- Connect to SIL-400/TEROS-12 & Hygrovue10 ===
1088
1089 ==== 2.6.5.1 Important Notice! ====
1090
1091
1092 * The product page and reference command see above example 2,3,4
1093
1094 * All of these SDI-12 sensors use the same address (address 0) by default. So we need to change their address to different address, by using **aAb!** command. See above example.
1095
1096 * The sensor needs to be powered to a steady statue. So the 12VT time need to be set to the maximum stable time for the sensors. in this example, it is 13 seconds.
1097
1098 * If these SDI-12 sensors are powered by external power source. It will add 300uA in the total current in SDI-12-LB/LS.
1099
1100 ==== 2.6.5.2 Hardware Connection to SDI-12-LB/LS ====
1101
1102
1103 [[image:image-20230603122508-17.png||height="526" width="742"]]
1104
1105
1106 ==== 2.6.5.3 Commands set in SDI-12-LB/LS and uplink payload ====
1107
1108
1109 [[image:image-20230603122549-18.png]]
1110
1111 [[image:image-20230603122623-19.png||height="483" width="1121"]]
1112
1113
1114 **Data in TTN:**
1115
1116 [[image:image-20230603122719-20.png||height="151" width="1179"]]
1117
1118
1119 === 2.6.6 Example 6 ~-~- Connect to ENTELECHY-EP_SDI-12 ===
1120
1121 ==== 2.6.6.1 Reference Manual and Command ====
1122
1123
1124 * [[https:~~/~~/enviroprosoilprobes.com/wp-content/uploads/2019/11/ENTELECHY-EP_SDI-12-Commands.pdf>>url:https://enviroprosoilprobes.com/wp-content/uploads/2019/11/ENTELECHY-EP_SDI-12-Commands.pdf]]
1125
1126 * Commands to be used in PC and output.
1127
1128 1.check device address
1129
1130 2.change device address
1131
1132 3.check device ID
1133
1134 4.start measure
1135
1136 5.Get Meausre result
1137
1138
1139 [[image:image-20230627174559-3.png]]
1140
1141
1142 ==== 2.6.6.2 Hardware Connection to SDI-12-LB/LS ====
1143
1144
1145 [[image:image-20230627174446-2.png]]
1146
1147
1148 ==== 2.6.6.3 Commands set in SDI-12-LB/LS and uplink payload ====
1149
1150
1151 [[image:image-20230627175513-4.png||height="596" width="576"]]
1152
1153 [[image:image-20230627175736-5.png||height="429" width="693"]]
1154
1155
1156 **Data in TTN:**
1157
1158 [[image:image-20230627180303-6.png||height="292" width="1171"]]
1159
1160
1161 === 2.6.7 Example 7 ~-~- Connect to GroPoint Profile-8 (SDI-12 Version) ===
1162
1163 ==== 2.6.7.1  Reference Manual and Command ====
1164
1165
1166 * [[https:~~/~~/static1.squarespace.com/static/5db0b690c4990258f8f6d042/t/64189e1ab3ebc54e6947b0c0/1679334941034/2625-N-T+GroPoint+Profile+User+Manual-V1.1.3.pdf>>https://static1.squarespace.com/static/5db0b690c4990258f8f6d042/t/64189e1ab3ebc54e6947b0c0/1679334941034/2625-N-T+GroPoint+Profile+User+Manual-V1.1.3.pdf]]
1167
1168 * Commands to be used in PC and output.
1169
1170 1. check device address
1171 1. change device address
1172 1. check device ID
1173 1. start measure
1174 1. Get Meausre result
1175
1176 [[image:image-20240423143921-1.png]]
1177
1178
1179 ==== 2.6.7.2 Hardware Connection to SDI-12-LB/LS ====
1180
1181
1182 (% style="color:red" %)**Note: When the bytes returned by the sensor are not fixed, the full byte interception can be used: AT+ALLDATAMOD=1 (The DATACUTx parameter needs to be cleared when using this directive, or it will not work.)**
1183
1184 [[image:image-20240423145522-2.png||height="345" width="400"]]
1185
1186
1187 ==== 2.6.7.3 Commands set in SDI-12-LB/LS and uplink payload ====
1188
1189 [[image:image-20240423151202-3.png]]
1190
1191 (% class="wikigeneratedid" id="H" %)
1192 [[image:image-20240423162851-6.png||height="251" width="935"]]
1193
1194
1195 DATA in TTN:
1196
1197 [[image:image-20240423162322-4.png||height="269" width="933"]]
1198
1199
1200 === 2.6.8 Example 8 ~-~- Connect to Acclima TDR Soil Moisture Sensor ===
1201
1202 ==== 2.6.8.1  Reference Manual and Command ====
1203
1204
1205 * [[Acclima TDR Soil Moisture Sensor User Manual>>url:https://acclima.com/tdr-soil-moisture-sensor-user-manual/]]
1206
1207 * Commands to be used in PC and output.
1208
1209 1. check device address
1210 1. change device address
1211 1. check device ID
1212 1. start measure
1213 1. Get Meausre result
1214
1215 [[image:image-20240903152650-3.png]]
1216
1217 [[image:image-20240903152627-2.png]]
1218
1219
1220 ==== 2.6.8.2 Hardware Connection to SDI-12-LB/LS ====
1221
1222
1223 (% style="color:red" %)**Note: When the bytes returned by the sensor are not fixed, the full byte interception can be used: AT+ALLDATAMOD=1 (The DATACUTx parameter needs to be cleared when using this directive, or it will not work.)**
1224
1225 [[image:image-20240903153004-5.png||height="358" width="660"]]
1226
1227
1228 ==== 2.6.8.3 Commands set in SDI-12-LB/LS and uplink payload ====
1229
1230
1231 [[image:image-20240903153258-6.png]]
1232
1233 [[image:image-20240903153627-7.png]]
1234
1235 DATA in TTN:
1236
1237 [[image:image-20240903154020-10.png||height="467" width="961"]]
1238
1239
1240 == 2.7 Frequency Plans ==
1241
1242
1243 The SDI-12-LB/LS uses OTAA mode and below frequency plans by default. Each frequency band use different firmware, user update the firmware to the corresponding band for their country.
1244
1245 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
1246
1247
1248 == 2.8 Firmware Change Log ==
1249
1250
1251 **Firmware download link:**
1252
1253 [[https:~~/~~/www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0>>https://www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0]]
1254
1255
1256
1257 == 2.9 Datalog Feature(Since v1.3.0) ==
1258
1259
1260 (((
1261 Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, SDI-12-LB will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from SDI-12-LB.
1262 )))
1263
1264
1265 === 2.9.1 Ways to get datalog via LoRaWAN ===
1266
1267
1268 There are two methods:
1269
1270 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.8.4Pollsensorvalue"]] for specified time range.
1271
1272
1273 (% style="color:blue" %)**Method 2: **(%%)Set PNACKMD=1, SDI-12-LB will wait for ACK for every uplink, when there is no LoRaWAN network, SDI-12-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
1274
1275
1276 (% style="color:red" %)**Note for method 2:**
1277
1278 * a) SDI-12-LB will do an ACK check for data records sending to make sure every data arrive server.
1279 * b) SDI-12-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but SDI-12-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if SDI-12-LB gets a ACK, SDI-12-LB will consider there is a network connection and resend all NONE-ACK Message.
1280
1281 === 2.9.2 Unix TimeStamp ===
1282
1283
1284 SDI-12-LB uses Unix TimeStamp format based on
1285
1286 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="image-20220523001219-11.png"]]
1287
1288
1289 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
1290
1291 Below is the converter example
1292
1293 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-12.png?width=720&height=298&rev=1.1||alt="image-20220523001219-12.png"]]
1294
1295 So, we can use AT+TIMESTAMP=1742889625 or downlink 3067E26299 to set the current time 2025 – March ~-~- 25 Tuesday  08:00:25
1296
1297
1298 === 2.9.3 Set Device Time ===
1299
1300
1301 (((
1302 (% style="color:blue" %)**There are two ways to set device's time:**
1303 )))
1304
1305 (((
1306 **1.  Through LoRaWAN MAC Command (Default settings)**
1307 )))
1308
1309 (((
1310 User need to set SYNCMOD=1 to enable sync time via MAC command.
1311 )))
1312
1313 (((
1314 Once SDI-12-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to SDI-12-LB. If SDI-12-LB fails to get the time from the server, SDI-12-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
1315 )))
1316
1317 (((
1318 (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
1319 )))
1320
1321
1322 (((
1323 **2. Manually Set Time**
1324 )))
1325
1326 (((
1327 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
1328 )))
1329
1330
1331 === 2.9.4 Poll sensor value ===
1332
1333
1334 User can poll sensor value based on timestamps from the server. Below is the downlink command.
1335
1336 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:438.778px" %)
1337 |(% style="background-color:#4f81bd; color:white; width:59px" %)**1byte**|(% style="background-color:#4f81bd; color:white; width:123px" %)**4bytes**|(% style="background-color:#4f81bd; color:white; width:114px" %)**4bytes**|(% style="background-color:#4f81bd; color:white; width:142.778px" %)**1byte**
1338 |(% style="width:58px" %)31|(% style="width:123px" %)Timestamp start|(% style="width:114px" %)Timestamp end|(% style="width:137px" %)(((
1339 Uplink Interval(range 5~~255s)
1340 )))
1341
1342 Timestamp start and Timestamp end use Unix TimeStamp format as mentioned above. Devices will reply with all data log during this time period, use the uplink interval.
1343
1344 For example, downlink command (% _mstmutation="1" %)**31 68253B6E 68253E23 05**(%%)
1345
1346 Is to check 2025/05/15 00:55:10 to 2025/05/15 01:06:43's data
1347
1348 Uplink Internal =5s, means SDI-12-LB will send one packet every 5s.
1349
1350
1351 === 2.9.5 Datalog Uplink payload ===
1352
1353
1354 The Datalog poll reply uplink will use below payload format.
1355
1356 **Retrieval data payload:**
1357
1358 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:480px" %)
1359 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
1360 **Size(bytes)**
1361 )))|=(% style="width: 100px; background-color: rgb(79, 129, 189); color: white;" %)**4**|=(% style="width: 100px; background-color: rgb(79, 129, 189); color: white;" %)**1**|=(% style="width: 220px; background-color: rgb(79, 129, 189); color: white;" %)**Length depends on the return from the commands**
1362 |(% style="width:97px" %)Value|(% style="width:104px" %)Unix Time Stamp|(% style="width:109px" %)Payload Length|(% style="width:165px" %)Data returned by the sensor
1363
1364 **Example:**
1365
1366 If SDI-12-LB has below data inside Flash:
1367
1368 (Soil sensors using the SDI-12 protocol are used for testing.)
1369
1370 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1371 |=(% style="width: 88px; background-color:#4F81BD;color:white" %)Flash Add|=(% style="width: 98px; background-color: rgb(79, 129, 189); color: white;" %)**Unix Time**|=(% style="width: 82px; background-color: rgb(79, 129, 189); color: white;" %)Payload Length|=(% style="width: 86px; background-color: rgb(79, 129, 189); color: white;" %)**BAT voltage**|=(% style="width: 92px; background-color: rgb(79, 129, 189); color: white;" %)Payload Version|=(% style="width: 64px; background-color:#4F81BD;color:white" %)**Value**
1372 |(% style="width:89px" %)(((
1373 0001
1374 )))|(% style="width:98px" %)(((
1375 2025/3/25 08:09:30
1376 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1377 0c a8
1378 )))|(% style="width:92px" %)01|(% style="width:131px" %)(((
1379 08 21
1380 )))
1381 |(% style="width:89px" %)0002|(% style="width:98px" %)(((
1382 2025/3/25 08:10:30
1383 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1384 0c ae
1385 )))|(% style="width:92px" %)01|(% style="width:131px" %)(((
1386 08 22
1387 )))
1388 |(% style="width:89px" %)0003|(% style="width:98px" %)(((
1389 2025/3/25 08:11:30
1390 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1391 |(% style="width:89px" %)0004|(% style="width:98px" %)(((
1392 2025/3/25 08:12:30
1393 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1394 |(% style="width:89px" %)0005|(% style="width:98px" %)(((
1395 2025/3/25 08:13:30
1396 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1397 0c b4
1398 )))|(% style="width:92px" %)01|(% style="width:131px" %)08 23
1399 |(% style="width:89px" %)0006|(% style="width:98px" %)(((
1400 2025/3/25 08:14:30
1401 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1402 |(% style="width:89px" %)0007|(% style="width:98px" %)(((
1403 2025/3/25 08:15:30
1404 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c b4|(% style="width:92px" %)01|(% style="width:131px" %)08 23
1405 |(% style="width:89px" %)0008|(% style="width:98px" %)(((
1406 2025/3/25 08:16:30
1407 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1408
1409 If user sends below downlink command: (% style="background-color:yellow" %)3168253B6E68253E2305
1410
1411 Where : Start time: (% _mstmutation="1" %)68253B6E (%%)= time 2025/05/15 00:55:10
1412
1413 Stop time: (% _mstmutation="1" %)68253E23 (%%)= time 2025/05/15 01:06:43
1414
1415
1416 **SDI-12-LB will uplink this payload.**
1417
1418 **68253B6E 12 0C7801F10D302B312E31372B32362E390D0A **
1419 68253C5D 12 0C7801F10D302B312E31372B32372E340D0A
1420 68253D33 12 0C7201F10D302B312E31352B32382E390D0A
1421 68253DAB 12 0C7201F10D302B312E31342B32392E340D0A
1422 68253E23 12 0C7201F10D302B312E31332B33302E300D0A
1423
1424
1425 Where the first 23 bytes is for the first entry:
1426
1427 **68253B6E 12 0C7801F10D302B312E31372B32362E390D0A**
1428
1429 Unix Time Stamp: 68253B6E(H)=1747270510(D)  ~-~->  time=2025-05-15 8:55:00
1430
1431 Payload Length: 0x12(H)=18 bytes
1432
1433 Battery voltage: 0x0C78(H)=3192 mV
1434
1435 Payload Version:  01
1436
1437 Value: For the distance sensor used for testing, this value is the mm distance value, 0xF10D302B312E31372B32362E390D0A(H)
1438
1439
1440
1441 = 3. Configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink =
1442
1443
1444 Use can configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink.
1445
1446 * AT Command Connection: See [[FAQ>>||anchor="H7.FAQ"]].
1447 * LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
1448
1449 There are two kinds of commands to configure SDI-12-LB/LS, they are:
1450
1451 * (% style="color:blue" %)**General Commands**.
1452
1453 These commands are to configure:
1454
1455 * General system settings like: uplink interval.
1456 * LoRaWAN protocol & radio related command.
1457
1458 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
1459
1460 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
1461
1462
1463 * (% style="color:blue" %)**Commands special design for SDI-12-LB/LS**
1464
1465 These commands only valid for SDI-12-LB/LS, as below:
1466
1467
1468 == 3.1 Set Transmit Interval Time ==
1469
1470
1471 Feature: Change LoRaWAN End Node Transmit Interval.
1472
1473 (% style="color:blue" %)**AT Command: AT+TDC**
1474
1475 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1476 |=(% style="width: 160px; background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 160px; background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 190px;background-color:#4F81BD;color:white" %)**Response**
1477 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=?|(% style="background-color:#f2f2f2; width:166px" %)Show current transmit Interval|(% style="background-color:#f2f2f2" %)(((
1478 30000
1479 OK
1480 the interval is 30000ms = 30s
1481 )))
1482 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=60000|(% style="background-color:#f2f2f2; width:166px" %)Set Transmit Interval|(% style="background-color:#f2f2f2" %)(((
1483 OK
1484 Set transmit interval to 60000ms = 60 seconds
1485 )))
1486
1487 (% style="color:blue" %)**Downlink Command: 0x01**
1488
1489 Format: Command Code (0x01) followed by 3 bytes time value.
1490
1491 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1492
1493 * Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1494 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
1495
1496 == 3.2 Set Interrupt Mode ==
1497
1498
1499 Feature, Set Interrupt mode for GPIO_EXIT.
1500
1501 (% style="color:blue" %)**AT Command: AT+INTMOD**
1502
1503 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1504 |=(% style="width: 154px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 196px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 160px;background-color:#4F81BD;color:white" %)**Response**
1505 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=?|(% style="background-color:#f2f2f2; width:196px" %)Show current interrupt mode|(% style="background-color:#f2f2f2; width:157px" %)(((
1506 0
1507 OK
1508 the mode is 0 =Disable Interrupt
1509 )))
1510 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=2|(% style="background-color:#f2f2f2; width:196px" %)(((
1511 Set Transmit Interval
1512 0. (Disable Interrupt),
1513 ~1. (Trigger by rising and falling edge)
1514 2. (Trigger by falling edge)
1515 3. (Trigger by rising edge)
1516 )))|(% style="background-color:#f2f2f2; width:157px" %)OK
1517
1518 (% style="color:blue" %)**Downlink Command: 0x06**
1519
1520 Format: Command Code (0x06) followed by 3 bytes.
1521
1522 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1523
1524 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
1525 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
1526
1527 == 3.3 Set the output time ==
1528
1529
1530 Feature, Control the output 3V3 , 5V or 12V.
1531
1532 (% style="color:blue" %)**AT Command: AT+3V3T**
1533
1534 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:474px" %)
1535 |=(% style="width: 154px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 201px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 120px;background-color:#4F81BD;color:white" %)**Response**
1536 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=?|(% style="background-color:#f2f2f2; width:201px" %)Show 3V3 open time.|(% style="background-color:#f2f2f2; width:116px" %)(((
1537 0
1538 OK
1539 )))
1540 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=0|(% style="background-color:#f2f2f2; width:201px" %)Normally open 3V3 power supply.|(% style="background-color:#f2f2f2; width:116px" %)(((
1541 OK
1542 default setting
1543 )))
1544 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=1000|(% style="background-color:#f2f2f2; width:201px" %)Close after a delay of 1000 milliseconds.|(% style="background-color:#f2f2f2; width:116px" %)(((
1545 OK
1546 )))
1547 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=65535|(% style="background-color:#f2f2f2; width:201px" %)Normally closed 3V3 power supply.|(% style="background-color:#f2f2f2; width:116px" %)(((
1548 OK
1549 )))
1550
1551 (% style="color:blue" %)**AT Command: AT+5VT**
1552
1553 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:470px" %)
1554 |=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 196px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 119px;background-color:#4F81BD;color:white" %)**Response**
1555 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=?|(% style="background-color:#f2f2f2; width:196px" %)Show 5V open time.|(% style="background-color:#f2f2f2; width:114px" %)(((
1556 0
1557 OK
1558 )))
1559 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=0|(% style="background-color:#f2f2f2; width:196px" %)Normally closed 5V power supply.|(% style="background-color:#f2f2f2; width:114px" %)(((
1560 OK
1561 default setting
1562 )))
1563 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=1000|(% style="background-color:#f2f2f2; width:196px" %)Close after a delay of 1000 milliseconds.|(% style="background-color:#f2f2f2; width:114px" %)(((
1564 OK
1565 )))
1566 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=65535|(% style="background-color:#f2f2f2; width:196px" %)Normally open 5V power supply.|(% style="background-color:#f2f2f2; width:114px" %)(((
1567 OK
1568 )))
1569
1570 (% style="color:blue" %)**AT Command: AT+12VT **
1571
1572 (% style="color:blue" %)**(The v1.2 version is enabled for 1 second by default, and the version below v1.2 is disabled by default)**
1573
1574 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:443px" %)
1575 |=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 199px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 89px;background-color:#4F81BD;color:white" %)**Response**
1576 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=?|(% style="background-color:#f2f2f2; width:199px" %)Show 12V open time.|(% style="background-color:#f2f2f2; width:83px" %)(((
1577 0
1578 OK
1579 )))
1580 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=0|(% style="background-color:#f2f2f2; width:199px" %)Normally closed 12V power supply.|(% style="background-color:#f2f2f2; width:83px" %)OK
1581 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=500|(% style="background-color:#f2f2f2; width:199px" %)Close after a delay of 500 milliseconds.|(% style="background-color:#f2f2f2; width:83px" %)(((
1582 OK
1583 )))
1584
1585 (% style="color:blue" %)**Downlink Command: 0x07**
1586
1587 Format: Command Code (0x07) followed by 3 bytes.
1588
1589 The first byte is which power, the second and third bytes are the time to turn on.
1590
1591 * Example 1: Downlink Payload: 070101F4  **~-~-->**  AT+3V3T=500
1592 * Example 2: Downlink Payload: 0701FFFF   **~-~-->**  AT+3V3T=65535
1593 * Example 3: Downlink Payload: 070203E8  **~-~-->**  AT+5VT=1000
1594 * Example 4: Downlink Payload: 07020000  **~-~-->**  AT+5VT=0
1595 * Example 5: Downlink Payload: 070301F4  **~-~-->**  AT+12VT=500
1596 * Example 6: Downlink Payload: 07030000  **~-~-->**  AT+12VT=0
1597
1598 == 3.4 Set the all data mode ==
1599
1600
1601 Feature, Set the all data mode.
1602
1603 (% style="color:blue" %)**AT Command: AT+ALLDATAMOD**
1604
1605 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1606 |=(% style="background-color:#4F81BD;color:white" %)**Command Example**|=(% style="background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1607 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=?|(% style="background-color:#f2f2f2" %)Show current all data mode|(% style="background-color:#f2f2f2" %)(((
1608 0
1609 OK
1610 )))
1611 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=1|(% style="background-color:#f2f2f2" %)Set all data mode is 1.|(% style="background-color:#f2f2f2" %)OK
1612
1613 (% style="color:blue" %)**Downlink Command: 0xAB**
1614
1615 Format: Command Code (0xAB) followed by 1 bytes.
1616
1617 * Example 1: Downlink Payload: AB 00  ~/~/  AT+ALLDATAMOD=0
1618 * Example 2: Downlink Payload: AB 01  ~/~/  AT+ALLDATAMOD=1
1619
1620 == 3.5 Set the splicing payload for uplink ==
1621
1622
1623 Feature, splicing payload for uplink.
1624
1625 (% style="color:blue" %)**AT Command: AT+DATAUP**
1626
1627 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1628 |=(% style="width: 154px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 266px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1629 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =?|(% style="background-color:#f2f2f2; width:266px" %)Show current splicing payload for uplink mode|(% style="background-color:#f2f2f2" %)(((
1630 0
1631 OK
1632 )))
1633 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =0|(% style="background-color:#f2f2f2; width:266px" %)(((
1634 Set splicing payload for uplink mode is 0.
1635 )))|(% style="background-color:#f2f2f2" %)(((
1636 OK
1637 )))
1638 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =1|(% style="background-color:#f2f2f2; width:266px" %)Set splicing payload for uplink mode is 1 , and the each splice uplink is sent sequentially.|(% style="background-color:#f2f2f2" %)OK
1639 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =1,20000|(% style="background-color:#f2f2f2; width:266px" %)(((
1640 Set splicing payload for uplink mode is 1, and the uplink interval of each splice to 20000 milliseconds.
1641 )))|(% style="background-color:#f2f2f2" %)OK
1642
1643 (% style="color:blue" %)**Downlink Command: 0xAD**
1644
1645 Format: Command Code (0xAD) followed by 1 bytes or 5 bytes.
1646
1647 * Example 1: Downlink Payload: AD 00  ~/~/  AT+DATAUP=0
1648 * Example 2: Downlink Payload: AD 01  ~/~/  AT+DATAUP =1
1649 * Example 3: Downlink Payload: AD 01 00 00 14  ~/~/  AT+DATAUP =1,20000
1650
1651 This means that the interval is set to 0x000014=20S
1652
1653
1654 == 3.6 Set the payload version ==
1655
1656
1657 Feature, Set the payload version.
1658
1659 (% style="color:blue" %)**AT Command: AT+PAYVER**
1660
1661 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1662 |=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 192px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1663 |(% style="background-color:#f2f2f2; width:158px" %)AT+PAYVER=?|(% style="background-color:#f2f2f2; width:192px" %)Show current payload version|(% style="background-color:#f2f2f2" %)(((
1664 1
1665 OK
1666 )))
1667 |(% style="background-color:#f2f2f2; width:158px" %)AT+PAYVER=5|(% style="background-color:#f2f2f2; width:192px" %)Set payload version is 5.|(% style="background-color:#f2f2f2" %)OK
1668
1669 (% style="color:blue" %)**Downlink Command: 0xAE**
1670
1671 Format: Command Code (0xAE) followed by 1 bytes.
1672
1673 * Example 1: Downlink Payload: AE 01  ~/~/  AT+PAYVER=1
1674 * Example 2: Downlink Payload: AE 05  ~/~/  AT+PAYVER=5
1675
1676 == 3.7 Print data entries base on page(Since v1.3.0) ==
1677
1678
1679 Feature: Print the sector data from start page to stop page (max is 416 pages).
1680
1681 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1682
1683 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1684 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1685 |(% style="width:156px" %)(((
1686 AT+PDTA=1,2
1687 Print page 1 to 2
1688 )))|(% style="width:311px" %)(((
1689 Stop Tx and RTP events when read sensor data
1690
1691 8033330 2025/5/14 12:27:32 18 0c 84 01 f1 0d 30 2b 31 2e 30
1692
1693 8033340 38 2b 32 34 2e 36 0d 0a
1694
1695 8033350 2025/5/14 12:29:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1696
1697 8033360 38 2b 32 34 2e 36 0d 0a
1698
1699 8033370 2025/5/14 12:31:32 18 0c 78 01 f1 0d 30 2b 31 2e 30
1700
1701 8033380 38 2b 32 34 2e 36 0d 0a
1702
1703 8033390 2025/5/14 12:33:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1704
1705 80333A0 38 2b 32 34 2e 36 0d 0a
1706
1707 80333B0 2025/5/14 12:35:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1708
1709 80333C0 38 2b 32 34 2e 36 0d 0a
1710
1711
1712 OK
1713 )))
1714
1715 (% style="color:#4f81bd" %)**Downlink Command:**
1716
1717 No downlink commands for feature
1718
1719
1720 == 3.8 Print last few data entries(Since v1.3.0) ==
1721
1722
1723 Feature: Print the last few data entries
1724
1725 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1726
1727 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1728 |=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 192px;background-color:#4F81BD;color:white" %)**Function**
1729 |(% style="background-color:#f2f2f2; width:158px" %)AT+PLDTA=10,0|(% style="background-color:#f2f2f2; width:192px" %)Printing the last ten data in hex format
1730 |(% style="background-color:#f2f2f2; width:158px" %)AT+PLDTA=10,1|(% style="background-color:#f2f2f2; width:192px" %)Print the last ten data in string format
1731
1732 * **Prints in hex format:**
1733
1734 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1735 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1736 |(% style="width:156px" %)(((
1737 AT+PLDTA=10,0
1738 Print last 10 entries
1739 )))|(% style="width:311px" %)(((
1740 Stop Tx events when read sensor data
1741
1742 0001-0001 2025/5/16 06:48:04 7 0c 7e 01 00 5f 01 05
1743
1744 0002-0002 2025/5/16 06:50:04 7 0c 72 01 00 5f 01 05
1745
1746 0003-0003 2025/5/16 06:52:04 7 0c 72 01 00 5f 01 05
1747
1748 0004-0004 2025/5/16 06:54:04 7 0c 7e 01 00 5f 01 05
1749
1750 0005-0005 2025/5/16 06:56:04 7 0c 7e 01 00 5f 01 07
1751
1752 0006-0006 2025/5/16 06:58:04 7 0c 8a 01 00 60 01 07
1753
1754 0007-0007 2025/5/16 07:00:04 7 0c 84 01 00 61 01 07
1755
1756 0008-0008 2025/5/16 07:02:04 7 0c 72 01 00 61 01 07
1757
1758 0009-0009 2025/5/16 07:04:04 7 0c 78 01 00 61 01 07
1759
1760 0010-0010 2025/5/16 07:06:04 7 0c 78 01 00 61 01 07
1761
1762 Start Tx events
1763
1764 OK
1765 )))
1766
1767 * **Printing in String Format:**
1768
1769 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1770 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1771 |(% style="width:156px" %)(((
1772 AT+PLDTA=10,1
1773 Print last 10 entries
1774
1775 (((
1776 (Printing in String Format)
1777 )))
1778 )))|(% style="width:311px" %)(((
1779 Stop Tx events when read sensor data
1780
1781 0001-0001 2025/5/16 06:48:04 7 ~~_
1782
1783 0002-0002 2025/5/16 06:50:04 7 r_
1784
1785 0003-0003 2025/5/16 06:52:04 7 r_
1786
1787 0004-0004 2025/5/16 06:54:04 7 ~~_
1788
1789 0005-0005 2025/5/16 06:56:04 7 ~~_
1790
1791 0006-0006 2025/5/16 06:58:04 7 `
1792
1793 0007-0007 2025/5/16 07:00:04 7 a
1794
1795 0008-0008 2025/5/16 07:02:04 7 ra
1796
1797 0009-0009 2025/5/16 07:04:04 7 xa
1798
1799 0010-0010 2025/5/16 07:06:04 7 xa
1800
1801 Start Tx events
1802
1803 OK
1804 )))
1805
1806 (% style="color:#4f81bd" %)**Downlink Command:**
1807
1808 No downlink commands for feature
1809
1810
1811 == 3.9 Clear Flash Record(Since v1.3.0) ==
1812
1813
1814 Feature: Clear flash storage for data log feature.
1815
1816 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1817
1818 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1819 |(% style="background-color:#4f81bd; color:white; width:157px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:137px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:209px" %)**Response**
1820 |(% style="width:155px" %)AT+CLRDTA |(% style="width:134px" %)Clear date record|(% style="width:209px" %)(((
1821 Clear all stored sensor data…
1822
1823 OK
1824 )))
1825
1826 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1827
1828 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1829
1830 == 3.10 SDI12 timing(Since v1.3.0) ==
1831
1832
1833 Feature: Get or set the time of SDI12 timing.
1834
1835 [[image:1747289896656-580.png||height="414" width="566"]]
1836
1837
1838 (% style="color:#4f81bd" %)**AT Command: AT+SDITIMING**
1839
1840 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1841 |(% style="background-color:#4f81bd; color:white; width:157px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:167px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:177px" %)**Response**
1842 |(% style="width:155px" %)(((
1843 AT+SDITIMING=13,9
1844
1845
1846 )))|(% style="width:167px" %)Get or set the time of SDI12 timing|(% style="width:177px" %)(((
1847 OK
1848
1849 Default: 13,9
1850 )))
1851
1852 (% style="color:#4f81bd" %)**Downlink Command: 0xA9**
1853
1854 * Example: 0xA90D09  ~/~/  Same as AT+SDITIMING=13,9
1855
1856 == 3.11 add Pulse_count, VDC_input, IDC_input(Since firmware V1.3.0) ==
1857
1858
1859 (% style="color:blue" %)**Setting up external sensors:**
1860
1861 * (% style="color:#037691" %)**AT Command:**
1862
1863 (% style="color:#4472c4" %)**AT+EXT=a,b,c**(%%)
1864
1865 (% style="color:#4472c4" %)**a:**(%%)  **0:** Disable Counting function ( doesn't effect interrupt ).  **1:** Enable Counting function(4 bytes).
1866 (% style="color:#4472c4" %)**b: **(%%) **0:** Disable voltage acquisition function.  **1:** Enable voltage acquisition function(2 bytes)
1867 (% style="color:#4472c4" %)**c:**(%%)  **0:** Disable current acquisition  function.  **1:** Enable current acquisition function(2 bytes).
1868
1869 **Example:**
1870
1871 (% style="color:#4472c4" %)**AT+EXT=1,1,1**
1872
1873 Device will add counting, voltage and current acquisition function.
1874
1875 The payload will be:
1876 Battery(mV) & Interrupt _Flag + PAYLOAD_VER + ***counting + ** ***VDC_INPUT**  + ***IDC_INPUT**  + Length depends on the return from the commands
1877
1878 (% style="color:#4472c4" %)**AT+EXT=1,0,0**
1879
1880 Device will add counting support.
1881
1882 The payload will be:
1883 Battery(mV) & Interrupt _Flag + PAYLOAD_VER + ***counting** + Length depends on the return from the commands
1884
1885 * (% style="color:#037691" %)**Downlink Command: 0x0B aa bb cc**
1886
1887 Format: Command Code (0x0B) followed by 3 bytes.
1888
1889 (% style="color:#037691" %)**aa:**(%%) Set Disable or Enable Counting Support.   **00**: Disable, **01**: Enable.
1890
1891 (% style="color:#037691" %)**bb:**(%%) Set Disable or Enable voltage acquisition.  **00**: Disable, **01**: Enable.
1892
1893 (% style="color:#037691" %)**cc:**(%%) Set Disable or Enable current acquisition.  **00**: Disable, **01**: Enable.
1894
1895 **Example:**
1896
1897 Downlink payload:  0B 00 00 01  ~/~/AT+EXT=0,0,1  Enable current acquisition
1898
1899 Downlink payload:  0B 01 00 01  ~/~/AT+EXT=1,0,1  Enable Counting Support and Current acquisition                        
1900
1901
1902 (% style="color:blue" %)**Set the pulse count value:**
1903
1904 * (% style="color:#037691" %)**AT Command:**
1905
1906 (% style="color:#4472c4" %)**AT+SETCNT=aa     **(%%)~/~/ Set the pulse count value.
1907
1908 **Example:**
1909
1910 AT+SETCNT=100  (% style="display:none" %) (%%)~/~/ Set the pulse count to 100.(% style="display:none" %)
1911
1912 * (% style="color:#037691" %)**Downlink Command: 0x0C**
1913
1914 Format: Command Code (0x0C) followed by 4 bytes.
1915
1916 **Example:**
1917
1918 Downlink Payload: 0C 00 00 00 64  ~/~/ AT+SETCNT=100
1919
1920
1921 (% style="color:blue" %)**Connect counting sensor:**
1922
1923 The counting sensor cables are connected to the **3V3 pin** and **GPIO_EXTI** pin of the **SIB v1.3** motherboard.
1924
1925 [[image:image-20250519110640-1.jpeg||height="318" width="708"]]
1926
1927
1928 (% id="cke_bm_1699404S" style="color:blue; display:none" %)** **(% style="color:blue" %)**Connect Voltage output sensor:**
1929
1930 Example:
1931
1932 **RED <~-~-~-~-> VDC_INPUT**
1933
1934 **BLACK <~-~-~-~-~-~-> GND**
1935
1936 [[image:image-20250519111415-3.jpeg||height="338" width="710"]]
1937
1938
1939 (% style="color:blue" %)**Connect Current output sensor:**
1940
1941 Example:
1942
1943 **RED <~-~-~-~-~-~-~-~--> IDC_INPUT**
1944
1945 **BLACK <~-~-~-~-~-~-> GND**
1946
1947 [[image:image-20250519111732-4.jpeg||height="373" width="708"]]
1948
1949
1950
1951 = 4. Battery & Power Consumption =
1952
1953
1954 SDI-12-LB use ER26500 + SPC1520 battery pack and SDI-12-LS use 3000mAh Recharable Battery with Solar Panel. See below link for detail information about the battery info and how to replace.
1955
1956 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
1957
1958
1959 = 5. Remote Configure device =
1960
1961 == 5.1 Connect via BLE ==
1962
1963
1964 Please see this instruction for how to configure via BLE: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]]
1965
1966
1967 == 5.2 AT Command Set ==
1968
1969
1970
1971 = 6. OTA firmware update =
1972
1973
1974 Please see this link for how to do OTA firmware update.
1975
1976 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
1977
1978
1979 = 7. FAQ =
1980
1981 == 7.1 How to use AT Command  via UART to access device? ==
1982
1983
1984 See: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]
1985
1986
1987 == 7.2 How to update firmware via UART port? ==
1988
1989
1990 See: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]
1991
1992
1993 == 7.3 How to change the LoRa Frequency Bands/Region? ==
1994
1995
1996 You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
1997 When downloading the images, choose the required image file for download. ​
1998
1999
2000 == 7.4 Why is the data uploaded to the LoRaWAN platform node empty and fProt~=0? ==
2001
2002
2003 This is due to The length of bytes sent by the node is limited by the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem.
2004
2005 Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
2006
2007 [[lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf>>url:https://lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf]]
2008
2009 Example:
2010
2011 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LN%20%E2%80%93%20RS485%20to%20LoRaWAN%20Converter/WebHome/image-20240620145456-1.png?rev=1.1||alt="image-20240620145456-1.png"]]
2012
2013 Please refer to the following command to fix DR
2014
2015 AT+ADR=0
2016
2017 AT+DR=3
2018
2019 Downlink command:
2020
2021 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate>>url:http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate]]
2022
2023
2024 = 8. ​Order Info =
2025
2026
2027 (((
2028 **Part Number: (% style="color:blue" %)SDI-12-LB-XX-YY(%%) or (% style="color:blue" %)SDI-12-LS-XX-YY(%%)**
2029 )))
2030
2031 (((
2032 (% style="color:blue" %)**XX**(%%): The default frequency band
2033 )))
2034
2035 (((
2036 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
2037 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
2038 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
2039 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
2040 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
2041 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
2042 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
2043 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
2044 )))
2045
2046 (% style="color:blue" %)**YY: **(%%)The grand connector hole size
2047
2048 * M12: M12 hole
2049 * M16: M16 hole
2050
2051 = 9. Packing Info =
2052
2053
2054 (% style="color:#037691" %)**Package Includes**:
2055
2056 * SDI-12-LB or SDI-12-LS SDI-12 to LoRaWAN Converter x 1
2057
2058 (% style="color:#037691" %)**Dimension and weight**:
2059
2060 * Device Size: cm
2061 * Device Weight: g
2062 * Package Size / pcs : cm
2063 * Weight / pcs : g
2064
2065 = 10. ​Support =
2066
2067
2068 * 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.
2069
2070 * 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]]