Last modified by Xiaoling on 2025/04/25 08:58
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12 **Table of Contents:**
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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
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!//.
515
516 (% style="color:red" %)**var4**(%%): validation check for return. If return invalid, SDI-12-LB/LS will resend this command. Max 3 retries.
517
518 (% style="color:red" %)**0 **(%%) No validation check;
519
520 (% style="color:red" %)**1** (%%) Check if return chars are printable char(0x20 ~~ 0x7E);
521
522 (% style="color:red" %)**2**(%%)  Check if there is return from SDI-12 sensor
523
524 (% style="color:red" %)**3** (%%) Check if return pass CRC check ( SDI-12 command var1 must include CRC request);
525
526
527 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.
528
529
530 (% style="color:blue" %)**AT+DATACUTx**(%%) : This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
531
532 (% border="1" style="width:436px" %)
533 |(% style="background-color:#f2f2f2; width:433px" %)(((
534 (% style="color:#0070c0" %)**AT+DATACUTx=a,b,c**
535
536 **a**:  length for the return of AT+COMMAND
537
538 **b**: 1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
539
540 **c**:  define the position for valid value. 
541 )))
542
543 For example, if return from AT+COMMAND1 is “013METER   TER12 112T12-00024895<CR><LF>” , Below AT+DATACUT1 will get different result to combine payload:
544
545
546 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
547 |=(% style="width: 164px;background-color:#4F81BD;color:white" %)**AT+DATACUT1 value**|=(% style="width: 346px;background-color:#4F81BD;color:white" %)**Final Result to combine Payload**
548 |(% style="background-color:#f2f2f2; width:164px" %)34,1,1+2+3|(% style="background-color:#f2f2f2; width:344px" %)0D 00 01 30 31 33
549 |(% 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
550 |(% 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
551
552 * (% style="color:blue" %)** Downlink Payload:**
553
554 (% style="color:blue" %)**0xAF**(%%)  downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
555
556
557 (% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
558
559
560 Format: ** (% style="color:#037691" %)AF MM NN LL XX XX XX XX YY(%%)**
561
562 Where:
563
564 * (% style="color:#037691" %)**MM **(%%): the AT+COMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
565 * (% style="color:#037691" %)**NN **(%%):  1: set the AT+COMMAND value ; 2: set the AT+DATACUT value.
566 * (% style="color:#037691" %)**LL **(%%):  The length of AT+COMMAND or AT+DATACUT command
567 * (% style="color:#037691" %)**XX XX XX XX **(%%): AT+COMMAND or AT+DATACUT command
568 * (% 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. 
569
570 (% style="color:blue" %)**Example:**
571
572 [[image:image-20230201094129-18.png||_mstalt="455065"]]
573
574
575
576 (% style="color:blue" %)**Clear SDI12 Command**
577
578 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
579
580
581 * (% style="color:#037691" %)**AT Command:**
582
583 (% style="color:#4f81bd" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
584
585
586 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
587
588
589 * (% style="color:#037691" %)**Downlink Payload:**
590
591 (% style="color:#4f81bd" %)**0x09 aa bb**(%%)  same as AT+CMDEAR=aa,bb
592
593
594
595 (% style="color:blue" %)**command combination**
596
597 Below shows a screen shot how the results combines together to a uplink payload.
598
599 [[image:1675215745275-920.png||_mstalt="295334"]]
600
601
602 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.
603
604 (% 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.
605
606
607 (% 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.
608
609
610 [[image:1675215782925-448.png||_mstalt="297466"]]
611
612
613 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.
614
615
616 (% style="color:blue" %)**Compose Uplink**
617
618 (% style="color:#4f81bd" %)**AT+DATAUP=0**
619
620 Compose the uplink payload with value returns in sequence and send with **__A SIGNLE UPLINK__**.
621
622 Final Payload is **__Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx__**
623
624 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
625
626
627 [[image:1675215828102-844.png||_mstalt="294645"]]
628
629
630 (% style="color:#4f81bd" %)**AT+DATAUP=1**
631
632 Compose the uplink payload with value returns in sequence and send with **__Multiply UPLINKs__**.
633
634 Final Payload is __**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**__
635
636 1. Battery Info (2 bytes): Battery voltage
637 1. PAYVER (1 byte): Defined by AT+PAYVER
638 1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
639 1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
640 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
641
642 [[image:1675215848113-696.png||_mstalt="296998"]]
643
644
645 (% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
646
647 * For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
648 * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
649 * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
650 * For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
651
652 (% style="color:red" %)**When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
653
654 (% 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.**
655
656
657 == 2.4 Uplink Payload ==
658
659 === 2.4.1 Device Payload, FPORT~=5 ===
660
661
662 Include device configure status. Once SDI-12-LB/LS Joined the network, it will uplink this message to the server.
663
664 Users can also use the downlink command(0x26 01) to ask SDI-12-LB/LS to resend this uplink.
665
666 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
667 |(% colspan="6" style="background-color:#4f81bd; color:white" %)**Device Status (FPORT=5)**
668 |(% 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**
669 |(% 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
670
671 Example parse in TTNv3
672
673 [[image:1675215946738-635.png||_mstalt="297778"]]
674
675
676 (% style="color:#037691" %)**Sensor Model**(%%): For SDI-12-LB/LS, this value is 0x17
677
678 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
679
680 (% style="color:#037691" %)**Frequency Band**:
681
682 0x01: EU868
683
684 0x02: US915
685
686 0x03: IN865
687
688 0x04: AU915
689
690 0x05: KZ865
691
692 0x06: RU864
693
694 0x07: AS923
695
696 0x08: AS923-1
697
698 0x09: AS923-2
699
700 0x0a: AS923-3
701
702 0x0b: CN470
703
704 0x0c: EU433
705
706 0x0d: KR920
707
708 0x0e: MA869
709
710
711 (% style="color:#037691" %)**Sub-Band**:
712
713 AU915 and US915:value 0x00 ~~ 0x08
714
715 CN470: value 0x0B ~~ 0x0C
716
717 Other Bands: Always 0x00
718
719
720 (% style="color:#037691" %)**Battery Info**:
721
722 Check the battery voltage.
723
724 Ex1: 0x0B45 = 2885mV
725
726 Ex2: 0x0B49 = 2889mV
727
728
729 === 2.4.2 Uplink Payload, FPORT~=2 ===
730
731
732 There are different cases for uplink. See below
733
734 * SDI-12 Debug Command return: FPORT=100
735
736 * Periodically Uplink: FPORT=2
737
738 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
739 |=(% style="width: 90px;background-color:#4F81BD;color:white" %)(((
740 **Size(bytes)**
741 )))|=(% 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**
742 |(% style="width:93px" %)Value|(% style="width:83px" %)(((
743 Battery(mV)
744 &
745 Interrupt_Flag
746 )))|(% style="width:91px" %)[[PAYLOAD_VER>>||anchor="H3.6Setthepayloadversion"]]|(% style="width:212px" %)(((
747 If the valid payload is too long and exceed the maximum support.
748 Payload length in server,server will show payload not provided in the LoRaWAN server.
749 )))
750
751 [[image:1675216282284-923.png||_mstalt="295633"]]
752
753
754 === 2.4.3 Battery Info ===
755
756
757 Check the battery voltage for SDI-12-LB/LS.
758
759 Ex1: 0x0B45 = 2885mV
760
761 Ex2: 0x0B49 = 2889mV
762
763
764 === 2.4.4 Interrupt Pin ===
765
766
767 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"]].
768
769 **Example:**
770
771 Ex1: 0x0B45:0x0B&0x80= 0x00    Normal uplink packet.
772
773 Ex2: 0x8B49:0x8B&0x80= 0x80    Interrupt Uplink Packet.
774
775
776 === 2.4.5 Payload version ===
777
778
779 The version number of the payload, mainly used for decoding. The default is 01.
780
781
782 === 2.4.6 ​Decode payload in The Things Network ===
783
784
785 While using TTN network, you can add the payload format to decode the payload.
786
787 [[image:1675216779406-595.png||_mstalt="298376"]]
788
789
790 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.
791
792 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
793
794
795 == 2.5 Uplink Interval ==
796
797
798 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:
799
800 [[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]]
801
802
803 == 2.6 Examples To Set SDI commands ==
804
805 === 2.6.1 Examples 1 ~-~- General Example ===
806
807
808 COM port and SDI-12 sensor communication converted to SDI-12-LB/LS and SDI-12 sensor communication.
809
810 [[image:image-20230222143809-1.png||_mstalt="429962" height="564" width="729"]]
811
812
813 (% style="color:blue" %)**1) The AT+COMMANDx command is applied to the red arrow part, and sends the SDI12 command to the SDI12 sensor:**
814
815 a. Send the first command and get the first reply：
816
817 (% style="color:#037691" %)**AT+COMMANDx=1I!,0,0,1**
818
819 b. Send the second command and get the second reply：
820
821 (% style="color:#037691" %)**AT+COMMANDx=2I!,0,0,1**
822
823 c. Send the third command and get the third reply：
824
825 (% style="color:#037691" %)**AT+COMMANDx=3I!,0,0,1**
826
827 d. Send the fourth command and get the fourth reply：
828
829 (% style="color:#037691" %)**AT+COMMANDx=4I!,0,0,1**
830
831 e. Send the fifth command plus the sixth command, get the sixth reply：
832
833 (% style="color:#037691" %)**AT+COMMANDx=1M!,2,1,1**
834
835 f. Send the seventh command plus the eighth command, get the eighth reply：
836
837 (% style="color:#037691" %)**AT+COMMANDx=2M!,2,1,1**
838
839 g. Send the ninth command plus the tenth command, get the tenth reply：
840
841 (% style="color:#037691" %)**AT+COMMANDx=3M!,1,1,1**
842
843 h. Send the eleventh command plus the twelfth command, get the twelfth reply：
844
845 (% style="color:#037691" %)**AT+COMMANDx=4M!,1,1,1**
846
847
848 (% style="color:blue" %)**2) The AT+DATACUTx command is applied to the green arrow part, receiving and cut out data from the SDI12 sensor:**
849
850 a. The first reply, all 34 characters: ”113TRUEBNERSMT100038220303182331<CR><LF>”
851
852 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=34,2,1~~34**(% style="color:#037691" %);
853
854 b. The sixth reply, all 31 characters: "1+19210+1.04+0.00+22.49+11.75<CR><LF>"
855
856 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
857
858 c. The eighth reply, all 31 characters: "2+18990+1.08+0.00+22.24+11.80<CR><LF>"
859
860 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
861
862 d. The tenth reply, all 15 characters: "3-2919.8+24.0<CR><LF>"
863
864 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=15,2,1~~15**(% style="color:#037691" %);
865
866 e. The twelfth reply, all 25 characters: "4+30.8+22.84+4.7+954.38<CR><LF>"
867
868 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"**.
869
870
871 === 2.6.2 Example 2 ~-~- Connect to Hygrovue10 ===
872
873 ==== 2.6.2.1 Reference Manual and Command ====
874
875
876 * [[Hygrovue10 Product Page>>https://www.campbellsci.com/hygrovue10]]
877
878 * Commands to be used in PC and output.
879
880 ~1. check device address
881
882 2. change device address
883
884 3. check device ID
885
886 4. start measure
887
888 5. Get Meausre result
889
890 [[image:image-20230603120209-2.png||height="281" width="267"]]
891
892
893 ==== 2.6.2.2 Hardware Connection to SDI-12-LB/LS ====
894
895
896 [[image:image-20230603120515-3.png]]
897
898
899 ==== 2.6.2.3 Commands set in SDI-12-LB/LS and uplink payload ====
900
901
902 [[image:image-20230603120648-4.png]]
903
904 [[image:image-20230603120726-5.png]]
905
906
907 **Data in TTN:**
908
909 [[image:image-20230603120859-6.png||height="118" width="1285"]]
910
911
912 === 2.6.3 Example 3 ~-~- Connect to SIL-400 ===
913
914 ==== 2.6.3.1 Reference Manual and Command ====
915
916
917 * [[SIL-400 Product Page>>https://www.apogeeinstruments.com/sil-411-commercial-grade-sdi-12-digital-output-standard-field-of-view-infrared-radiometer-sensor/]]
918
919 * Commands to be used in PC and output.
920
921 ~1. check device address
922
923 2. change device address
924
925 3. check device ID
926
927 4. start measure
928
929 5. Get Meausre result
930
931 [[image:image-20230603121606-7.png||height="242" width="307"]]
932
933
934 ==== 2.6.3.2 Hardware Connection to SDI-12-LB/LS ====
935
936
937 [[image:image-20230603121643-8.png||height="442" width="656"]]
938
939
940 ==== 2.6.3.3 Commands set in SDI-12-LB/LS and uplink payload ====
941
942
943 [[image:image-20230603121721-9.png]]
944
945 [[image:image-20230628090323-1.png||height="414" width="694"]]
946
947 Data in TTN:
948
949 [[image:image-20230603121826-11.png||height="155" width="1104"]]
950
951
952 === 2.6.4 Example 4 ~-~- Connect to TEROS-12 ===
953
954 ==== 2.6.4.1 Reference Manual and Command ====
955
956
957 * [[TEROS-12 Product Page>>https://www.metergroup.com/en/meter-environment/products/teros-12-soil-moisture-sensor]]
958
959 * Commands to be used in PC and output.
960
961 1.check device address
962
963 2.change device address
964
965 3.check device ID
966
967 4.start measure
968
969 5.Get Meausre result
970
971 [[image:image-20230603122248-16.png||height="196" width="198"]]
972
973
974 ==== 2.6.4.2 Hardware Connection to SDI-12-LB/LS ====
975
976
977 [[image:image-20230603122212-15.png||height="502" width="667"]]
978
979
980 ==== 2.6.4.3 Commands set in SDI-12-LB/LS and uplink payload ====
981
982
983 [[image:image-20230603122040-12.png]]
984
985 [[image:image-20230603122109-13.png||height="469" width="762"]]
986
987
988 **Data in TTN:**
989
990 [[image:image-20230603122139-14.png||height="148" width="1128"]]
991
992
993 === 2.6.5 Example 5 ~-~- Connect to SIL-400/TEROS-12 & Hygrovue10 ===
994
995 ==== 2.6.5.1 Important Notice! ====
996
997
998 * The product page and reference command see above example 2,3,4
999
1000 * 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.
1001
1002 * 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.
1003
1004 * If these SDI-12 sensors are powered by external power source. It will add 300uA in the total current in SDI-12-LB/LS.
1005
1006 ==== 2.6.5.2 Hardware Connection to SDI-12-LB/LS ====
1007
1008
1009 [[image:image-20230603122508-17.png||height="526" width="742"]]
1010
1011
1012 ==== 2.6.5.3 Commands set in SDI-12-LB/LS and uplink payload ====
1013
1014
1015 [[image:image-20230603122549-18.png]]
1016
1017 [[image:image-20230603122623-19.png||height="483" width="1121"]]
1018
1019
1020 **Data in TTN:**
1021
1022 [[image:image-20230603122719-20.png||height="151" width="1179"]]
1023
1024
1025 === 2.6.6 Example 6 ~-~- Connect to ENTELECHY-EP_SDI-12 ===
1026
1027 ==== 2.6.6.1 Reference Manual and Command ====
1028
1029
1030 * [[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]]
1031
1032 * Commands to be used in PC and output.
1033
1034 1.check device address
1035
1036 2.change device address
1037
1038 3.check device ID
1039
1040 4.start measure
1041
1042 5.Get Meausre result
1043
1044
1045 [[image:image-20230627174559-3.png]]
1046
1047
1048 ==== 2.6.6.2 Hardware Connection to SDI-12-LB/LS ====
1049
1050
1051 [[image:image-20230627174446-2.png]]
1052
1053
1054 ==== 2.6.6.3 Commands set in SDI-12-LB/LS and uplink payload ====
1055
1056
1057 [[image:image-20230627175513-4.png||height="596" width="576"]]
1058
1059 [[image:image-20230627175736-5.png||height="429" width="693"]]
1060
1061
1062 **Data in TTN:**
1063
1064 [[image:image-20230627180303-6.png||height="292" width="1171"]]
1065
1066
1067 === 2.6.7 Example 7 ~-~- Connect to GroPoint Profile-8 (SDI-12 Version) ===
1068
1069 ==== 2.6.7.1  Reference Manual and Command ====
1070
1071
1072 * [[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]]
1073
1074 * Commands to be used in PC and output.
1075
1076 1. check device address
1077 1. change device address
1078 1. check device ID
1079 1. start measure
1080 1. Get Meausre result
1081
1082 [[image:image-20240423143921-1.png]]
1083
1084
1085 ==== 2.6.7.2 Hardware Connection to SDI-12-LB/LS ====
1086
1087
1088 (% 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.)**
1089
1090 [[image:image-20240423145522-2.png||height="345" width="400"]]
1091
1092
1093 ==== 2.6.7.3 Commands set in SDI-12-LB/LS and uplink payload ====
1094
1095 [[image:image-20240423151202-3.png]]
1096
1097 (% class="wikigeneratedid" id="H" %)
1098 [[image:image-20240423162851-6.png||height="251" width="935"]]
1099
1100
1101 DATA in TTN:
1102
1103 [[image:image-20240423162322-4.png||height="269" width="933"]]
1104
1105
1106 === 2.6.8 Example 8 ~-~- Connect to Acclima TDR Soil Moisture Sensor ===
1107
1108 ==== 2.6.8.1  Reference Manual and Command ====
1109
1110
1111 * [[Acclima TDR Soil Moisture Sensor User Manual>>url:https://acclima.com/tdr-soil-moisture-sensor-user-manual/]]
1112
1113 * Commands to be used in PC and output.
1114
1115 1. check device address
1116 1. change device address
1117 1. check device ID
1118 1. start measure
1119 1. Get Meausre result
1120
1121 [[image:image-20240903152650-3.png]]
1122
1123 [[image:image-20240903152627-2.png]]
1124
1125
1126 ==== 2.6.8.2 Hardware Connection to SDI-12-LB/LS ====
1127
1128
1129 (% 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.)**
1130
1131 [[image:image-20240903153004-5.png||height="358" width="660"]]
1132
1133
1134 ==== 2.6.8.3 Commands set in SDI-12-LB/LS and uplink payload ====
1135
1136
1137 [[image:image-20240903153258-6.png]]
1138
1139 [[image:image-20240903153627-7.png]]
1140
1141 DATA in TTN:
1142
1143 [[image:image-20240903154020-10.png||height="467" width="961"]]
1144
1145
1146 == 2.7 Frequency Plans ==
1147
1148
1149 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.
1150
1151 [[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/]]
1152
1153
1154 == 2.8 Firmware Change Log ==
1155
1156
1157 **Firmware download link:**
1158
1159 [[https:~~/~~/www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0>>https://www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0]]
1160
1161
1162 = 3. Configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink =
1163
1164
1165 Use can configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink.
1166
1167 * AT Command Connection: See [[FAQ>>||anchor="H7.FAQ"]].
1168 * LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
1169
1170 There are two kinds of commands to configure SDI-12-LB/LS, they are:
1171
1172 * (% style="color:blue" %)**General Commands**.
1173
1174 These commands are to configure:
1175
1176 * General system settings like: uplink interval.
1177 * LoRaWAN protocol & radio related command.
1178
1179 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
1180
1181 [[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/]]
1182
1183
1184 * (% style="color:blue" %)**Commands special design for SDI-12-LB/LS**
1185
1186 These commands only valid for SDI-12-LB/LS, as below:
1187
1188
1189 == 3.1 Set Transmit Interval Time ==
1190
1191
1192 Feature: Change LoRaWAN End Node Transmit Interval.
1193
1194 (% style="color:blue" %)**AT Command: AT+TDC**
1195
1196 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1197 |=(% 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**
1198 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=?|(% style="background-color:#f2f2f2; width:166px" %)Show current transmit Interval|(% style="background-color:#f2f2f2" %)(((
1199 30000
1200 OK
1201 the interval is 30000ms = 30s
1202 )))
1203 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=60000|(% style="background-color:#f2f2f2; width:166px" %)Set Transmit Interval|(% style="background-color:#f2f2f2" %)(((
1204 OK
1205 Set transmit interval to 60000ms = 60 seconds
1206 )))
1207
1208 (% style="color:blue" %)**Downlink Command: 0x01**
1209
1210 Format: Command Code (0x01) followed by 3 bytes time value.
1211
1212 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1213
1214 * Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1215 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
1216
1217 == 3.2 Set Interrupt Mode ==
1218
1219
1220 Feature, Set Interrupt mode for GPIO_EXIT.
1221
1222 (% style="color:blue" %)**AT Command: AT+INTMOD**
1223
1224 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1225 |=(% 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**
1226 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=?|(% style="background-color:#f2f2f2; width:196px" %)Show current interrupt mode|(% style="background-color:#f2f2f2; width:157px" %)(((
1227 0
1228 OK
1229 the mode is 0 =Disable Interrupt
1230 )))
1231 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=2|(% style="background-color:#f2f2f2; width:196px" %)(((
1232 Set Transmit Interval
1233 0. (Disable Interrupt),
1234 ~1. (Trigger by rising and falling edge)
1235 2. (Trigger by falling edge)
1236 3. (Trigger by rising edge)
1237 )))|(% style="background-color:#f2f2f2; width:157px" %)OK
1238
1239 (% style="color:blue" %)**Downlink Command: 0x06**
1240
1241 Format: Command Code (0x06) followed by 3 bytes.
1242
1243 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1244
1245 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
1246 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
1247
1248 == 3.3 Set the output time ==
1249
1250
1251 Feature, Control the output 3V3 , 5V or 12V.
1252
1253 (% style="color:blue" %)**AT Command: AT+3V3T**
1254
1255 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:474px" %)
1256 |=(% 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**
1257 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=?|(% style="background-color:#f2f2f2; width:201px" %)Show 3V3 open time.|(% style="background-color:#f2f2f2; width:116px" %)(((
1258 0
1259 OK
1260 )))
1261 |(% 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" %)(((
1262 OK
1263 default setting
1264 )))
1265 |(% 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" %)(((
1266 OK
1267 )))
1268 |(% 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" %)(((
1269 OK
1270 )))
1271
1272 (% style="color:blue" %)**AT Command: AT+5VT**
1273
1274 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:470px" %)
1275 |=(% 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**
1276 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=?|(% style="background-color:#f2f2f2; width:196px" %)Show 5V open time.|(% style="background-color:#f2f2f2; width:114px" %)(((
1277 0
1278 OK
1279 )))
1280 |(% 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" %)(((
1281 OK
1282 default setting
1283 )))
1284 |(% 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" %)(((
1285 OK
1286 )))
1287 |(% 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" %)(((
1288 OK
1289 )))
1290
1291 (% style="color:blue" %)**AT Command: AT+12VT **
1292
1293 (% style="color:blue" %)**(The v1.2 version is enabled for 1 second by default, and the version below v1.2 is disabled by default)**
1294
1295 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:443px" %)
1296 |=(% 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**
1297 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=?|(% style="background-color:#f2f2f2; width:199px" %)Show 12V open time.|(% style="background-color:#f2f2f2; width:83px" %)(((
1298 0
1299 OK
1300 )))
1301 |(% 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
1302 |(% 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" %)(((
1303 OK
1304 )))
1305
1306 (% style="color:blue" %)**Downlink Command: 0x07**
1307
1308 Format: Command Code (0x07) followed by 3 bytes.
1309
1310 The first byte is which power, the second and third bytes are the time to turn on.
1311
1312 * Example 1: Downlink Payload: 070101F4  **~-~-->**  AT+3V3T=500
1313 * Example 2: Downlink Payload: 0701FFFF   **~-~-->**  AT+3V3T=65535
1314 * Example 3: Downlink Payload: 070203E8  **~-~-->**  AT+5VT=1000
1315 * Example 4: Downlink Payload: 07020000  **~-~-->**  AT+5VT=0
1316 * Example 5: Downlink Payload: 070301F4  **~-~-->**  AT+12VT=500
1317 * Example 6: Downlink Payload: 07030000  **~-~-->**  AT+12VT=0
1318
1319 == 3.4 Set the all data mode ==
1320
1321
1322 Feature, Set the all data mode.
1323
1324 (% style="color:blue" %)**AT Command: AT+ALLDATAMOD**
1325
1326 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1327 |=(% style="background-color:#4F81BD;color:white" %)**Command Example**|=(% style="background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1328 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=?|(% style="background-color:#f2f2f2" %)Show current all data mode|(% style="background-color:#f2f2f2" %)(((
1329 0
1330 OK
1331 )))
1332 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=1|(% style="background-color:#f2f2f2" %)Set all data mode is 1.|(% style="background-color:#f2f2f2" %)OK
1333
1334 (% style="color:blue" %)**Downlink Command: 0xAB**
1335
1336 Format: Command Code (0xAB) followed by 1 bytes.
1337
1338 * Example 1: Downlink Payload: AB 00  ~/~/  AT+ALLDATAMOD=0
1339 * Example 2: Downlink Payload: AB 01  ~/~/  AT+ALLDATAMOD=1
1340
1341 == 3.5 Set the splicing payload for uplink ==
1342
1343
1344 Feature, splicing payload for uplink.
1345
1346 (% style="color:blue" %)**AT Command: AT+DATAUP**
1347
1348 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1349 |=(% 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**
1350 |(% 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" %)(((
1351 0
1352 OK
1353 )))
1354 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =0|(% style="background-color:#f2f2f2; width:266px" %)(((
1355 Set splicing payload for uplink mode is 0.
1356 )))|(% style="background-color:#f2f2f2" %)(((
1357 OK
1358 )))
1359 |(% 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
1360 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =1,20000|(% style="background-color:#f2f2f2; width:266px" %)(((
1361 Set splicing payload for uplink mode is 1, and the uplink interval of each splice to 20000 milliseconds.
1362 )))|(% style="background-color:#f2f2f2" %)OK
1363
1364 (% style="color:blue" %)**Downlink Command: 0xAD**
1365
1366 Format: Command Code (0xAD) followed by 1 bytes or 5 bytes.
1367
1368 * Example 1: Downlink Payload: AD 00  ~/~/  AT+DATAUP=0
1369 * Example 2: Downlink Payload: AD 01  ~/~/  AT+DATAUP =1
1370 * Example 3: Downlink Payload: AD 01 00 00 14  ~/~/  AT+DATAUP =1,20000
1371
1372 This means that the interval is set to 0x000014=20S
1373
1374
1375 == 3.6 Set the payload version ==
1376
1377
1378 Feature, Set the payload version.
1379
1380 (% style="color:blue" %)**AT Command: AT+PAYVER**
1381
1382 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1383 |=(% 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**
1384 |(% style="background-color:#f2f2f2; width:158px" %)AT+PAYVER=?|(% style="background-color:#f2f2f2; width:192px" %)Show current payload version|(% style="background-color:#f2f2f2" %)(((
1385 1
1386 OK
1387 )))
1388 |(% 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
1389
1390 (% style="color:blue" %)**Downlink Command: 0xAE**
1391
1392 Format: Command Code (0xAE) followed by 1 bytes.
1393
1394 * Example 1: Downlink Payload: AE 01  ~/~/  AT+PAYVER=1
1395 * Example 2: Downlink Payload: AE 05  ~/~/  AT+PAYVER=5
1396
1397 = 4. Battery & Power Consumption =
1398
1399
1400 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.
1401
1402 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
1403
1404
1405 = 5. Remote Configure device =
1406
1407 == 5.1 Connect via BLE ==
1408
1409
1410 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/]]
1411
1412
1413 == 5.2 AT Command Set ==
1414
1415
1416
1417 = 6. OTA firmware update =
1418
1419
1420 Please see this link for how to do OTA firmware update.
1421
1422 [[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/]]
1423
1424
1425 = 7. FAQ =
1426
1427 == 7.1 How to use AT Command  via UART to access device? ==
1428
1429
1430 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]]
1431
1432
1433 == 7.2 How to update firmware via UART port? ==
1434
1435
1436 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]]
1437
1438
1439 == 7.3 How to change the LoRa Frequency Bands/Region? ==
1440
1441
1442 You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
1443 When downloading the images, choose the required image file for download. ​
1444
1445
1446 == 7.4 Why is the data uploaded to the LoRaWAN platform node empty and fProt~=0? ==
1447
1448
1449 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.
1450
1451 Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1452
1453 [[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]]
1454
1455 Example:
1456
1457 [[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"]]
1458
1459 Please refer to the following command to fix DR
1460
1461 AT+ADR=0
1462
1463 AT+DR=3
1464
1465 Downlink command:
1466
1467 [[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]]
1468
1469
1470 = 8. ​Order Info =
1471
1472
1473 (((
1474 **Part Number: (% style="color:blue" %)SDI-12-LB-XX-YY(%%) or (% style="color:blue" %)SDI-12-LS-XX-YY(%%)**
1475 )))
1476
1477 (((
1478 (% style="color:blue" %)**XX**(%%): The default frequency band
1479 )))
1480
1481 (((
1482 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1483 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1484 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1485 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1486 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1487 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1488 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1489 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1490 )))
1491
1492 (% style="color:blue" %)**YY: **(%%)The grand connector hole size
1493
1494 * M12: M12 hole
1495 * M16: M16 hole
1496
1497 = 9. Packing Info =
1498
1499
1500 (% style="color:#037691" %)**Package Includes**:
1501
1502 * SDI-12-LB or SDI-12-LS SDI-12 to LoRaWAN Converter x 1
1503
1504 (% style="color:#037691" %)**Dimension and weight**:
1505
1506 * Device Size: cm
1507 * Device Weight: g
1508 * Package Size / pcs : cm
1509 * Weight / pcs : g
1510
1511 = 10. ​Support =
1512
1513
1514 * 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.
1515
1516 * 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]]
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