Version 141.2 by Xiaoling on 2025/04/25 08:56
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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 ==
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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
182
183 === 1.9.2 for LS version ===
184
185
186 [[image:image-20250329133856-1.jpeg]]
187
188
189 = 2. Configure SDI-12 to connect to LoRaWAN network =
190
191 == 2.1 How it works ==
192
193
194 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.
195
196
197 == 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
198
199
200 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.
201
202 [[image:image-20250416151346-2.png]]
203
204
205 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.
206
207
208 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from SDI-12-LB/LS.
209
210 Each SDI-12-LB/LS is shipped with a sticker with the default device EUI as below:
211
212 [[image:image-20230426084456-1.png||height="241" width="519"]]
213
214
215 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
216
217 **Create the application.**
218
219 [[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"]]
220
221 [[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"]]
222
223
224 **Add devices to the created Application.**
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-20240907111659-3.png?width=977&height=185&rev=1.1||alt="image-20240907111659-3.png"]]
227
228 [[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"]]
229
230
231 **Enter end device specifics manually.**
232
233 [[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"]]
234
235
236 **Add DevEUI and AppKey.**
237
238 **Customize a platform ID for the device.**
239
240 [[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"]]
241
242
243 (% style="color:blue" %)**Step 2: **(%%)Add decoder
244
245 While using TTN network, you can add the payload format to decode the payload.
246
247 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.
248
249 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
250
251 Below is TTN screen shot:
252
253 [[image:image-20241118165746-3.png||height="470" width="869"]]
254
255 [[image:image-20241118165832-4.png||height="336" width="724"]]
256
257
258 (% style="color:blue" %)**Step 3**(%%): Activate on SDI-12-LB/LS
259
260 Press the button for 5 seconds to activate the SDI-12-LB/LS.
261
262 (% 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.
263
264 [[image:1675213704414-644.png||_mstalt="293748"]]
265
266
267 == ​2.3 SDI-12 Related Commands ==
268
269
270 User need to configure SDI-12-LB/LS to communicate with SDI-12 sensors otherwise the uplink payload will only include a few bytes.
271
272 If you use UART to connect a computer, refer to the following connection methods:
273
274 [[image:image-20240823165402-1.jpeg||height="488" width="678"]]
275
276 Screenshot example:
277
278 [[image:image-20240823165526-2.png||height="489" width="690"]]
279
280
281
282 === 2.3.1 Basic SDI-12 debug command ===
283
284
285 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.
286
287 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.
288
289 The following is the display information on the serial port and the server.
290
291
292 [[image:image-20230201091027-6.png||_mstalt="429065"]]
293
294
295 [[image:image-20230201091027-7.png||_mstalt="429429" height="261" width="1179"]]
296
297
298
299 ==== (% style="color:blue" %)**al!  ~-~- Get SDI-12 sensor Identification**(%%) ====
300
301
302 * AT Command: AT+ADDRI=aa
303 * LoRaWAN Downlink(prefix 0xAA00): AA 00 aa
304
305 (% style="color:#037691" %)**Parameter:  **(%%)aa: ASCII value of SDI-12 sensor address in downlink or HEX value in AT Command)
306
307 (% style="color:blue" %)**Example :   **(%%)AT+ADDRI=0 ( Equal to downlink: 0x AA 00 30)
308
309
310 The following is the display information on the serial port and the server.
311
312
313 [[image:image-20230201091257-8.png||_mstalt="431392"]]
314
315
316 [[image:image-20230201091257-9.png||_mstalt="431756" height="225" width="1242"]]
317
318
319 ==== (% style="color:blue" %)**aM!,aMC!, aM1!- aM9!, aMC1!- aMC9!**(%%) ====
320
321
322 (% style="color:red" %)**aM! **(%%): Start Non-Concurrent Measurement
323
324 (% style="color:red" %)**aMC! **(%%): Start Non-Concurrent Measurement – Request CRC
325
326 (% style="color:red" %)**aM1!- aM9! **(%%): Additional Measurements
327
328 (% style="color:red" %)**aMC1!- aMC9!**(%%) : Additional Measurements – Request CRC
329
330
331 * AT Command : AT+ADDRM=0,1,0,1
332
333 * LoRaWAN Downlink(prefix 0xAA01): 0xAA 01 30 01 00 01
334
335 Downlink：AA 01 aa bb cc dd
336
337 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
338
339 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
340
341 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
342
343 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%) to get return.
344
345
346 The following is the display information on the serial port and the server.
347
348
349 [[image:image-20230201091630-10.png||_mstalt="449995"]]
350
351
352 [[image:image-20230201091630-11.png||_mstalt="450372" height="247" width="1165"]]
353
354
355
356 ==== (% style="color:blue" %)**aC!, aCC!,  aC1!- aC9!,  aCC1!- aCC9! **(%%) ====
357
358
359 (% style="color:red" %)**aC!**(%%) : Start Concurrent Measurement
360
361 (% style="color:red" %)**aCC!** (%%): Start Concurrent Measurement – Request CRC
362
363 (% style="color:red" %)**aC1!- aC9!**(%%) : Start Additional Concurrent Measurements
364
365 (% style="color:red" %)**aCC1!- aCC9!**(%%) : Start Additional Concurrent Measurements – Request CRC
366
367
368 * AT Command : AT+ADDRC=0,1,0,1 
369
370 * LoRaWAN Downlink(0xAA02): 0xAA 02 30 01 00 01
371
372 Downlink: AA 02 aa bb cc dd
373
374 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
375
376 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
377
378 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
379
380 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%)__ __to get return.
381
382
383 The following is the display information on the serial port and the server.
384
385
386 [[image:image-20230201091954-12.png||_mstalt="453687"]]
387
388
389 [[image:image-20230201091954-13.png||_mstalt="454064" height="203" width="1117"]]
390
391
392
393 ==== (% style="color:blue" %)**aR0!- aR9!,  aRC0!- aRC9!**(%%) ====
394
395
396 Start Continuous Measurement
397
398 Start Continuous Measurement – Request CRC
399
400
401 * AT Command : AT+ADDRR=0,1,0,1 
402 * LoRaWAN Downlink (0xAA 03): 0xAA 03 30 01 00 01
403
404 Downlink: AA 03 aa bb cc dd
405
406 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
407
408 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
409
410 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
411
412 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%) to get return.
413
414
415 The following is the display information on the serial port and the server.
416
417
418 [[image:image-20230201092208-14.png||_mstalt="452283"]]
419
420
421 [[image:image-20230201092208-15.png||_mstalt="452660" height="214" width="1140"]]
422
423
424 === 2.3.2 Advance SDI-12 Debug command ===
425
426
427 This command can be used to debug all SDI-12 command.
428
429
430 LoRaWAN Downlink: A8 aa xx xx xx xx bb cc dd
431
432 (% style="color:#037691" %)**aa **(%%): total SDI-12 command length
433
434 (% style="color:#037691" %)**xx **(%%): SDI-12 command
435
436 (% style="color:#037691" %)**bb **(%%): Delay to wait for return
437
438 (% style="color:#037691" %)**cc **(%%): 0: don't uplink return to LoRaWAN, 1: Uplink return to LoRaWAN on FPORT=100
439
440 (% style="color:#037691" %)**dd: **(%%) 0: Do not use aD0! command access, 1: use aD0! command access.
441
442
443 (% style="color:blue" %)**Example1: **(%%) AT+CFGDEV =0RC0!,1
444
445 (% style="color:#037691" %)**0RC0! **(%%): SDI-12 Command,
446
447 (% style="color:#037691" %)**1 **(%%): Delay 1 second.  ( 0: 810 mini-second)
448
449 Equal Downlink: 0xA8 05 30 52 43 30 21 01 01
450
451
452 The following is the display information on the serial port and the server.
453
454
455 [[image:image-20230201092355-16.png||_mstalt="453960"]]
456
457
458 [[image:image-20230201092355-17.png||_mstalt="454337" height="426" width="1135"]]
459
460
461 (% style="color:blue" %)**Example2: **(%%) AT+CFGDEV =0M!,1,1
462
463 (% style="color:#037691" %)**0M! **(%%): SDI-12 Command,
464
465 (% style="color:#037691" %)**1 **(%%): Delay 1 second.  ( 0: 810 mini-second)
466
467 (% style="color:#037691" %)**1 **(%%): Use aD0! command access.
468
469 Equal Downlink: 0xA8 03 30  4D 21 01 01 01
470
471
472 The following is the display information on the serial port and the server.
473
474
475 [[image:image-20230628091055-1.png||height="368" width="462"]]
476
477 [[image:image-20230628091130-2.png||height="258" width="879"]]
478
479
480 === 2.3.3 Convert ASCII to String ===
481
482
483 This command is used to convert between ASCII and String format.
484
485 AT+CONVFORM ( Max length: 80 bytes)
486
487
488 (% style="color:blue" %)**Example:**
489
490 1) AT+CONVFORM=0, string Convert String from String to ASCII
491
492 [[image:1675214845056-885.png||_mstalt="297622"]]
493
494
495 2) AT+CONVFORM=1, ASCII Convert ASCII to String.
496
497 [[image:1675214856590-846.png||_mstalt="297739"]]
498
499
500 === 2.3.4 Define periodically SDI-12 commands and uplink. ===
501
502
503 AT+COMMANDx & AT+DATACUTx
504
505 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.
506
507
508 * (% style="color:blue" %)**AT Command:**
509
510 (% style="color:#037691" %)**AT+COMMANDx=var1,var2,var3,var4.**
511
512 (% style="color:red" %)**var1**(%%): SDI-12 command , for example: 0RC0!
513
514 (% style="color:red" %)**var2**(%%): Wait timeout for return. (unit: second)
515
516 (% style="color:red" %)**var3**(%%): Whether to send //addrD0!// to get return after var2 timeout. 0: Don't Send //addrD0! //; 1: Send //addrD0!//.
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 == 2.4 Uplink Payload ==
660
661 === 2.4.1 Device Payload, FPORT~=5 ===
662
663
664 Include device configure status. Once SDI-12-LB/LS Joined the network, it will uplink this message to the server.
665
666 Users can also use the downlink command(0x26 01) to ask SDI-12-LB/LS to resend this uplink.
667
668 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
669 |(% colspan="6" style="background-color:#4f81bd; color:white" %)**Device Status (FPORT=5)**
670 |(% 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**
671 |(% 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
672
673 Example parse in TTNv3
674
675 [[image:1675215946738-635.png||_mstalt="297778"]]
676
677
678 (% style="color:#037691" %)**Sensor Model**(%%): For SDI-12-LB/LS, this value is 0x17
679
680 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
681
682 (% style="color:#037691" %)**Frequency Band**:
683
684 0x01: EU868
685
686 0x02: US915
687
688 0x03: IN865
689
690 0x04: AU915
691
692 0x05: KZ865
693
694 0x06: RU864
695
696 0x07: AS923
697
698 0x08: AS923-1
699
700 0x09: AS923-2
701
702 0x0a: AS923-3
703
704 0x0b: CN470
705
706 0x0c: EU433
707
708 0x0d: KR920
709
710 0x0e: MA869
711
712
713 (% style="color:#037691" %)**Sub-Band**:
714
715 AU915 and US915:value 0x00 ~~ 0x08
716
717 CN470: value 0x0B ~~ 0x0C
718
719 Other Bands: Always 0x00
720
721
722 (% style="color:#037691" %)**Battery Info**:
723
724 Check the battery voltage.
725
726 Ex1: 0x0B45 = 2885mV
727
728 Ex2: 0x0B49 = 2889mV
729
730
731 === 2.4.2 Uplink Payload, FPORT~=2 ===
732
733
734 There are different cases for uplink. See below
735
736 * SDI-12 Debug Command return: FPORT=100
737
738 * Periodically Uplink: FPORT=2
739
740 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
741 |=(% style="width: 90px;background-color:#4F81BD;color:white" %)(((
742 **Size(bytes)**
743 )))|=(% 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**
744 |(% style="width:93px" %)Value|(% style="width:83px" %)(((
745 Battery(mV)
746 &
747 Interrupt_Flag
748 )))|(% style="width:91px" %)[[PAYLOAD_VER>>||anchor="H3.6Setthepayloadversion"]]|(% style="width:212px" %)(((
749 If the valid payload is too long and exceed the maximum support.
750 Payload length in server,server will show payload not provided in the LoRaWAN server.
751 )))
752
753 [[image:1675216282284-923.png||_mstalt="295633"]]
754
755
756 === 2.4.3 Battery Info ===
757
758
759 Check the battery voltage for SDI-12-LB/LS.
760
761 Ex1: 0x0B45 = 2885mV
762
763 Ex2: 0x0B49 = 2889mV
764
765
766 === 2.4.4 Interrupt Pin ===
767
768
769 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"]].
770
771 **Example:**
772
773 Ex1: 0x0B45:0x0B&0x80= 0x00    Normal uplink packet.
774
775 Ex2: 0x8B49:0x8B&0x80= 0x80    Interrupt Uplink Packet.
776
777
778 === 2.4.5 Payload version ===
779
780
781 The version number of the payload, mainly used for decoding. The default is 01.
782
783
784 === 2.4.6 ​Decode payload in The Things Network ===
785
786
787 While using TTN network, you can add the payload format to decode the payload.
788
789 [[image:1675216779406-595.png||_mstalt="298376"]]
790
791
792 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.
793
794 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
795
796
797 == 2.5 Uplink Interval ==
798
799
800 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:
801
802 [[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]]
803
804
805 == 2.6 Examples To Set SDI commands ==
806
807 === 2.6.1 Examples 1 ~-~- General Example ===
808
809
810 COM port and SDI-12 sensor communication converted to SDI-12-LB/LS and SDI-12 sensor communication.
811
812 [[image:image-20230222143809-1.png||_mstalt="429962" height="564" width="729"]]
813
814
815 (% style="color:blue" %)**1) The AT+COMMANDx command is applied to the red arrow part, and sends the SDI12 command to the SDI12 sensor:**
816
817 a. Send the first command and get the first reply：
818
819 (% style="color:#037691" %)**AT+COMMANDx=1I!,0,0,1**
820
821 b. Send the second command and get the second reply：
822
823 (% style="color:#037691" %)**AT+COMMANDx=2I!,0,0,1**
824
825 c. Send the third command and get the third reply：
826
827 (% style="color:#037691" %)**AT+COMMANDx=3I!,0,0,1**
828
829 d. Send the fourth command and get the fourth reply：
830
831 (% style="color:#037691" %)**AT+COMMANDx=4I!,0,0,1**
832
833 e. Send the fifth command plus the sixth command, get the sixth reply：
834
835 (% style="color:#037691" %)**AT+COMMANDx=1M!,2,1,1**
836
837 f. Send the seventh command plus the eighth command, get the eighth reply：
838
839 (% style="color:#037691" %)**AT+COMMANDx=2M!,2,1,1**
840
841 g. Send the ninth command plus the tenth command, get the tenth reply：
842
843 (% style="color:#037691" %)**AT+COMMANDx=3M!,1,1,1**
844
845 h. Send the eleventh command plus the twelfth command, get the twelfth reply：
846
847 (% style="color:#037691" %)**AT+COMMANDx=4M!,1,1,1**
848
849
850 (% style="color:blue" %)**2) The AT+DATACUTx command is applied to the green arrow part, receiving and cut out data from the SDI12 sensor:**
851
852 a. The first reply, all 34 characters: ”113TRUEBNERSMT100038220303182331<CR><LF>”
853
854 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=34,2,1~~34**(% style="color:#037691" %);
855
856 b. The sixth reply, all 31 characters: "1+19210+1.04+0.00+22.49+11.75<CR><LF>"
857
858 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
859
860 c. The eighth reply, all 31 characters: "2+18990+1.08+0.00+22.24+11.80<CR><LF>"
861
862 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
863
864 d. The tenth reply, all 15 characters: "3-2919.8+24.0<CR><LF>"
865
866 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=15,2,1~~15**(% style="color:#037691" %);
867
868 e. The twelfth reply, all 25 characters: "4+30.8+22.84+4.7+954.38<CR><LF>"
869
870 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"**.
871
872
873 === 2.6.2 Example 2 ~-~- Connect to Hygrovue10 ===
874
875 ==== 2.6.2.1 Reference Manual and Command ====
876
877
878 * [[Hygrovue10 Product Page>>https://www.campbellsci.com/hygrovue10]]
879
880 * Commands to be used in PC and output.
881
882 ~1. check device address
883
884 2. change device address
885
886 3. check device ID
887
888 4. start measure
889
890 5. Get Meausre result
891
892 [[image:image-20230603120209-2.png||height="281" width="267"]]
893
894
895 ==== 2.6.2.2 Hardware Connection to SDI-12-LB/LS ====
896
897
898 [[image:image-20230603120515-3.png]]
899
900
901 ==== 2.6.2.3 Commands set in SDI-12-LB/LS and uplink payload ====
902
903
904 [[image:image-20230603120648-4.png]]
905
906 [[image:image-20230603120726-5.png]]
907
908
909 **Data in TTN:**
910
911 [[image:image-20230603120859-6.png||height="118" width="1285"]]
912
913
914 === 2.6.3 Example 3 ~-~- Connect to SIL-400 ===
915
916 ==== 2.6.3.1 Reference Manual and Command ====
917
918
919 * [[SIL-400 Product Page>>https://www.apogeeinstruments.com/sil-411-commercial-grade-sdi-12-digital-output-standard-field-of-view-infrared-radiometer-sensor/]]
920
921 * Commands to be used in PC and output.
922
923 ~1. check device address
924
925 2. change device address
926
927 3. check device ID
928
929 4. start measure
930
931 5. Get Meausre result
932
933 [[image:image-20230603121606-7.png||height="242" width="307"]]
934
935
936 ==== 2.6.3.2 Hardware Connection to SDI-12-LB/LS ====
937
938
939 [[image:image-20230603121643-8.png||height="442" width="656"]]
940
941
942 ==== 2.6.3.3 Commands set in SDI-12-LB/LS and uplink payload ====
943
944
945 [[image:image-20230603121721-9.png]]
946
947 [[image:image-20230628090323-1.png||height="414" width="694"]]
948
949 Data in TTN:
950
951 [[image:image-20230603121826-11.png||height="155" width="1104"]]
952
953
954 === 2.6.4 Example 4 ~-~- Connect to TEROS-12 ===
955
956 ==== 2.6.4.1 Reference Manual and Command ====
957
958
959 * [[TEROS-12 Product Page>>https://www.metergroup.com/en/meter-environment/products/teros-12-soil-moisture-sensor]]
960
961 * Commands to be used in PC and output.
962
963 1.check device address
964
965 2.change device address
966
967 3.check device ID
968
969 4.start measure
970
971 5.Get Meausre result
972
973 [[image:image-20230603122248-16.png||height="196" width="198"]]
974
975
976 ==== 2.6.4.2 Hardware Connection to SDI-12-LB/LS ====
977
978
979 [[image:image-20230603122212-15.png||height="502" width="667"]]
980
981
982 ==== 2.6.4.3 Commands set in SDI-12-LB/LS and uplink payload ====
983
984
985 [[image:image-20230603122040-12.png]]
986
987 [[image:image-20230603122109-13.png||height="469" width="762"]]
988
989
990 **Data in TTN:**
991
992 [[image:image-20230603122139-14.png||height="148" width="1128"]]
993
994
995 === 2.6.5 Example 5 ~-~- Connect to SIL-400/TEROS-12 & Hygrovue10 ===
996
997 ==== 2.6.5.1 Important Notice! ====
998
999
1000 * The product page and reference command see above example 2,3,4
1001
1002 * 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.
1003
1004 * 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.
1005
1006 * If these SDI-12 sensors are powered by external power source. It will add 300uA in the total current in SDI-12-LB/LS.
1007
1008 ==== 2.6.5.2 Hardware Connection to SDI-12-LB/LS ====
1009
1010
1011 [[image:image-20230603122508-17.png||height="526" width="742"]]
1012
1013
1014 ==== 2.6.5.3 Commands set in SDI-12-LB/LS and uplink payload ====
1015
1016
1017 [[image:image-20230603122549-18.png]]
1018
1019 [[image:image-20230603122623-19.png||height="483" width="1121"]]
1020
1021
1022 **Data in TTN:**
1023
1024 [[image:image-20230603122719-20.png||height="151" width="1179"]]
1025
1026
1027 === 2.6.6 Example 6 ~-~- Connect to ENTELECHY-EP_SDI-12 ===
1028
1029 ==== 2.6.6.1 Reference Manual and Command ====
1030
1031
1032 * [[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]]
1033
1034 * Commands to be used in PC and output.
1035
1036 1.check device address
1037
1038 2.change device address
1039
1040 3.check device ID
1041
1042 4.start measure
1043
1044 5.Get Meausre result
1045
1046
1047 [[image:image-20230627174559-3.png]]
1048
1049
1050 ==== 2.6.6.2 Hardware Connection to SDI-12-LB/LS ====
1051
1052
1053 [[image:image-20230627174446-2.png]]
1054
1055
1056 ==== 2.6.6.3 Commands set in SDI-12-LB/LS and uplink payload ====
1057
1058
1059 [[image:image-20230627175513-4.png||height="596" width="576"]]
1060
1061 [[image:image-20230627175736-5.png||height="429" width="693"]]
1062
1063
1064 **Data in TTN:**
1065
1066 [[image:image-20230627180303-6.png||height="292" width="1171"]]
1067
1068
1069 === 2.6.7 Example 7 ~-~- Connect to GroPoint Profile-8 (SDI-12 Version) ===
1070
1071 ==== 2.6.7.1  Reference Manual and Command ====
1072
1073
1074 * [[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]]
1075
1076 * Commands to be used in PC and output.
1077
1078 1. check device address
1079 1. change device address
1080 1. check device ID
1081 1. start measure
1082 1. Get Meausre result
1083
1084 [[image:image-20240423143921-1.png]]
1085
1086
1087 ==== 2.6.7.2 Hardware Connection to SDI-12-LB/LS ====
1088
1089
1090 (% 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.)**
1091
1092 [[image:image-20240423145522-2.png||height="345" width="400"]]
1093
1094
1095 ==== 2.6.7.3 Commands set in SDI-12-LB/LS and uplink payload ====
1096
1097 [[image:image-20240423151202-3.png]]
1098
1099 (% class="wikigeneratedid" id="H" %)
1100 [[image:image-20240423162851-6.png||height="251" width="935"]]
1101
1102
1103 DATA in TTN:
1104
1105 [[image:image-20240423162322-4.png||height="269" width="933"]]
1106
1107
1108 === 2.6.8 Example 8 ~-~- Connect to Acclima TDR Soil Moisture Sensor ===
1109
1110 ==== 2.6.8.1  Reference Manual and Command ====
1111
1112
1113 * [[Acclima TDR Soil Moisture Sensor User Manual>>url:https://acclima.com/tdr-soil-moisture-sensor-user-manual/]]
1114
1115 * Commands to be used in PC and output.
1116
1117 1. check device address
1118 1. change device address
1119 1. check device ID
1120 1. start measure
1121 1. Get Meausre result
1122
1123 [[image:image-20240903152650-3.png]]
1124
1125 [[image:image-20240903152627-2.png]]
1126
1127
1128 ==== 2.6.8.2 Hardware Connection to SDI-12-LB/LS ====
1129
1130
1131 (% 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.)**
1132
1133 [[image:image-20240903153004-5.png||height="358" width="660"]]
1134
1135
1136 ==== 2.6.8.3 Commands set in SDI-12-LB/LS and uplink payload ====
1137
1138
1139 [[image:image-20240903153258-6.png]]
1140
1141 [[image:image-20240903153627-7.png]]
1142
1143 DATA in TTN:
1144
1145 [[image:image-20240903154020-10.png||height="467" width="961"]]
1146
1147
1148 == 2.7 Frequency Plans ==
1149
1150
1151 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.
1152
1153 [[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/]]
1154
1155
1156 == 2.8 Firmware Change Log ==
1157
1158
1159 **Firmware download link:**
1160
1161 [[https:~~/~~/www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0>>https://www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0]]
1162
1163
1164 = 3. Configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink =
1165
1166
1167 Use can configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink.
1168
1169 * AT Command Connection: See [[FAQ>>||anchor="H7.FAQ"]].
1170 * LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
1171
1172 There are two kinds of commands to configure SDI-12-LB/LS, they are:
1173
1174 * (% style="color:blue" %)**General Commands**.
1175
1176 These commands are to configure:
1177
1178 * General system settings like: uplink interval.
1179 * LoRaWAN protocol & radio related command.
1180
1181 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
1182
1183 [[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/]]
1184
1185
1186 * (% style="color:blue" %)**Commands special design for SDI-12-LB/LS**
1187
1188 These commands only valid for SDI-12-LB/LS, as below:
1189
1190
1191 == 3.1 Set Transmit Interval Time ==
1192
1193
1194 Feature: Change LoRaWAN End Node Transmit Interval.
1195
1196 (% style="color:blue" %)**AT Command: AT+TDC**
1197
1198 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1199 |=(% 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**
1200 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=?|(% style="background-color:#f2f2f2; width:166px" %)Show current transmit Interval|(% style="background-color:#f2f2f2" %)(((
1201 30000
1202 OK
1203 the interval is 30000ms = 30s
1204 )))
1205 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=60000|(% style="background-color:#f2f2f2; width:166px" %)Set Transmit Interval|(% style="background-color:#f2f2f2" %)(((
1206 OK
1207 Set transmit interval to 60000ms = 60 seconds
1208 )))
1209
1210 (% style="color:blue" %)**Downlink Command: 0x01**
1211
1212 Format: Command Code (0x01) followed by 3 bytes time value.
1213
1214 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1215
1216 * Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1217 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
1218
1219 == 3.2 Set Interrupt Mode ==
1220
1221
1222 Feature, Set Interrupt mode for GPIO_EXIT.
1223
1224 (% style="color:blue" %)**AT Command: AT+INTMOD**
1225
1226 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1227 |=(% 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**
1228 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=?|(% style="background-color:#f2f2f2; width:196px" %)Show current interrupt mode|(% style="background-color:#f2f2f2; width:157px" %)(((
1229 0
1230 OK
1231 the mode is 0 =Disable Interrupt
1232 )))
1233 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=2|(% style="background-color:#f2f2f2; width:196px" %)(((
1234 Set Transmit Interval
1235 0. (Disable Interrupt),
1236 ~1. (Trigger by rising and falling edge)
1237 2. (Trigger by falling edge)
1238 3. (Trigger by rising edge)
1239 )))|(% style="background-color:#f2f2f2; width:157px" %)OK
1240
1241 (% style="color:blue" %)**Downlink Command: 0x06**
1242
1243 Format: Command Code (0x06) followed by 3 bytes.
1244
1245 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1246
1247 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
1248 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
1249
1250 == 3.3 Set the output time ==
1251
1252
1253 Feature, Control the output 3V3 , 5V or 12V.
1254
1255 (% style="color:blue" %)**AT Command: AT+3V3T**
1256
1257 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:474px" %)
1258 |=(% 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**
1259 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=?|(% style="background-color:#f2f2f2; width:201px" %)Show 3V3 open time.|(% style="background-color:#f2f2f2; width:116px" %)(((
1260 0
1261 OK
1262 )))
1263 |(% 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" %)(((
1264 OK
1265 default setting
1266 )))
1267 |(% 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" %)(((
1268 OK
1269 )))
1270 |(% 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" %)(((
1271 OK
1272 )))
1273
1274 (% style="color:blue" %)**AT Command: AT+5VT**
1275
1276 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:470px" %)
1277 |=(% 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**
1278 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=?|(% style="background-color:#f2f2f2; width:196px" %)Show 5V open time.|(% style="background-color:#f2f2f2; width:114px" %)(((
1279 0
1280 OK
1281 )))
1282 |(% 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" %)(((
1283 OK
1284 default setting
1285 )))
1286 |(% 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" %)(((
1287 OK
1288 )))
1289 |(% 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" %)(((
1290 OK
1291 )))
1292
1293 (% style="color:blue" %)**AT Command: AT+12VT **
1294
1295 (% style="color:blue" %)**(The v1.2 version is enabled for 1 second by default, and the version below v1.2 is disabled by default)**
1296
1297 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:443px" %)
1298 |=(% 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**
1299 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=?|(% style="background-color:#f2f2f2; width:199px" %)Show 12V open time.|(% style="background-color:#f2f2f2; width:83px" %)(((
1300 0
1301 OK
1302 )))
1303 |(% 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
1304 |(% 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" %)(((
1305 OK
1306 )))
1307
1308 (% style="color:blue" %)**Downlink Command: 0x07**
1309
1310 Format: Command Code (0x07) followed by 3 bytes.
1311
1312 The first byte is which power, the second and third bytes are the time to turn on.
1313
1314 * Example 1: Downlink Payload: 070101F4  **~-~-->**  AT+3V3T=500
1315 * Example 2: Downlink Payload: 0701FFFF   **~-~-->**  AT+3V3T=65535
1316 * Example 3: Downlink Payload: 070203E8  **~-~-->**  AT+5VT=1000
1317 * Example 4: Downlink Payload: 07020000  **~-~-->**  AT+5VT=0
1318 * Example 5: Downlink Payload: 070301F4  **~-~-->**  AT+12VT=500
1319 * Example 6: Downlink Payload: 07030000  **~-~-->**  AT+12VT=0
1320
1321 == 3.4 Set the all data mode ==
1322
1323
1324 Feature, Set the all data mode.
1325
1326 (% style="color:blue" %)**AT Command: AT+ALLDATAMOD**
1327
1328 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1329 |=(% style="background-color:#4F81BD;color:white" %)**Command Example**|=(% style="background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1330 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=?|(% style="background-color:#f2f2f2" %)Show current all data mode|(% style="background-color:#f2f2f2" %)(((
1331 0
1332 OK
1333 )))
1334 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=1|(% style="background-color:#f2f2f2" %)Set all data mode is 1.|(% style="background-color:#f2f2f2" %)OK
1335
1336 (% style="color:blue" %)**Downlink Command: 0xAB**
1337
1338 Format: Command Code (0xAB) followed by 1 bytes.
1339
1340 * Example 1: Downlink Payload: AB 00  ~/~/  AT+ALLDATAMOD=0
1341 * Example 2: Downlink Payload: AB 01  ~/~/  AT+ALLDATAMOD=1
1342
1343 == 3.5 Set the splicing payload for uplink ==
1344
1345
1346 Feature, splicing payload for uplink.
1347
1348 (% style="color:blue" %)**AT Command: AT+DATAUP**
1349
1350 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1351 |=(% 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**
1352 |(% 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" %)(((
1353 0
1354 OK
1355 )))
1356 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =0|(% style="background-color:#f2f2f2; width:266px" %)(((
1357 Set splicing payload for uplink mode is 0.
1358 )))|(% style="background-color:#f2f2f2" %)(((
1359 OK
1360 )))
1361 |(% 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
1362 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =1,20000|(% style="background-color:#f2f2f2; width:266px" %)(((
1363 Set splicing payload for uplink mode is 1, and the uplink interval of each splice to 20000 milliseconds.
1364 )))|(% style="background-color:#f2f2f2" %)OK
1365
1366 (% style="color:blue" %)**Downlink Command: 0xAD**
1367
1368 Format: Command Code (0xAD) followed by 1 bytes or 5 bytes.
1369
1370 * Example 1: Downlink Payload: AD 00  ~/~/  AT+DATAUP=0
1371 * Example 2: Downlink Payload: AD 01  ~/~/  AT+DATAUP =1
1372 * Example 3: Downlink Payload: AD 01 00 00 14  ~/~/  AT+DATAUP =1,20000
1373
1374 This means that the interval is set to 0x000014=20S
1375
1376
1377 == 3.6 Set the payload version ==
1378
1379
1380 Feature, Set the payload version.
1381
1382 (% style="color:blue" %)**AT Command: AT+PAYVER**
1383
1384 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1385 |=(% 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**
1386 |(% style="background-color:#f2f2f2; width:158px" %)AT+PAYVER=?|(% style="background-color:#f2f2f2; width:192px" %)Show current payload version|(% style="background-color:#f2f2f2" %)(((
1387 1
1388 OK
1389 )))
1390 |(% 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
1391
1392 (% style="color:blue" %)**Downlink Command: 0xAE**
1393
1394 Format: Command Code (0xAE) followed by 1 bytes.
1395
1396 * Example 1: Downlink Payload: AE 01  ~/~/  AT+PAYVER=1
1397 * Example 2: Downlink Payload: AE 05  ~/~/  AT+PAYVER=5
1398
1399 = 4. Battery & Power Consumption =
1400
1401
1402 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.
1403
1404 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
1405
1406
1407 = 5. Remote Configure device =
1408
1409 == 5.1 Connect via BLE ==
1410
1411
1412 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/]]
1413
1414
1415 == 5.2 AT Command Set ==
1416
1417
1418
1419 = 6. OTA firmware update =
1420
1421
1422 Please see this link for how to do OTA firmware update.
1423
1424 [[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/]]
1425
1426
1427 = 7. FAQ =
1428
1429 == 7.1 How to use AT Command  via UART to access device? ==
1430
1431
1432 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]]
1433
1434
1435 == 7.2 How to update firmware via UART port? ==
1436
1437
1438 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]]
1439
1440
1441 == 7.3 How to change the LoRa Frequency Bands/Region? ==
1442
1443
1444 You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
1445 When downloading the images, choose the required image file for download. ​
1446
1447
1448 == 7.4 Why is the data uploaded to the LoRaWAN platform node empty and fProt~=0? ==
1449
1450
1451 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.
1452
1453 Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1454
1455 [[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]]
1456
1457 Example:
1458
1459 [[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"]]
1460
1461 Please refer to the following command to fix DR
1462
1463 AT+ADR=0
1464
1465 AT+DR=3
1466
1467 Downlink command:
1468
1469 [[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]]
1470
1471
1472 = 8. ​Order Info =
1473
1474
1475 (((
1476 **Part Number: (% style="color:blue" %)SDI-12-LB-XX-YY(%%) or (% style="color:blue" %)SDI-12-LS-XX-YY(%%)**
1477 )))
1478
1479 (((
1480 (% style="color:blue" %)**XX**(%%): The default frequency band
1481 )))
1482
1483 (((
1484 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1485 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1486 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1487 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1488 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1489 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1490 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1491 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1492 )))
1493
1494 (% style="color:blue" %)**YY: **(%%)The grand connector hole size
1495
1496 * M12: M12 hole
1497 * M16: M16 hole
1498
1499 = 9. Packing Info =
1500
1501
1502 (% style="color:#037691" %)**Package Includes**:
1503
1504 * SDI-12-LB or SDI-12-LS SDI-12 to LoRaWAN Converter x 1
1505
1506 (% style="color:#037691" %)**Dimension and weight**:
1507
1508 * Device Size: cm
1509 * Device Weight: g
1510 * Package Size / pcs : cm
1511 * Weight / pcs : g
1512
1513 = 10. ​Support =
1514
1515
1516 * 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.
1517
1518 * 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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