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Version 154.1 by Mengting Qiu on 2025/05/16 14:46
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4 [[image:image-20240103165259-3.png||height="433" width="591"]]
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12 **Table of Contents:**
13
14 {{toc/}}
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28 = 1. Introduction =
29
30 == 1.1 ​What is SDI-12 to LoRaWAN Converter ==
31
32
33 (((
34 The Dragino (% style="color:blue" %)**SDI-12-LB/LS**(%%) is a (% style="color:blue" %)**SDI-12 to LoRaWAN Converter **(%%)designed for Smart Agriculture solution.
35 )))
36
37 (((
38 SDI-12 (Serial Digital Interface at 1200 baud) is an asynchronous [[serial communications>>url:https://en.wikipedia.org/wiki/Serial_communication]] protocol for intelligent sensors that monitor environment data. SDI-12 protocol is widely used in Agriculture sensor and Weather Station sensors.
39 )))
40
41 (((
42 SDI-12-LB/LS has SDI-12 interface and support 12v output to power external SDI-12 sensor. It can get the environment data from SDI-12 sensor and sends out the data via LoRaWAN wireless protocol.
43 )))
44
45 (((
46 The LoRa wireless technology used in SDI-12-LB/LS allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
47 )))
48
49 (((
50 SDI-12-LB/LS is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%) or (% style="color:blue" %)**solar powered + Li-ion battery,**(%%) it is designed for long term use up to 5 years.
51 )))
52
53 (((
54 Each SDI-12-LB/LS is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
55 )))
56
57
58 == ​1.2 Features ==
59
60
61 * LoRaWAN 1.0.3 Class A
62 * Ultra-low power consumption
63 * Controllable 3.3v, 5v and 12v output to power external sensor
64 * SDI-12 Protocol to connect to SDI-12 Sensor
65 * Monitor Battery Level
66 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
67 * Support Bluetooth v5.1 and LoRaWAN remote configure.
68 * Support wireless OTA update firmware
69 * Uplink on periodically
70 * Downlink to change configure
71 * 8500mAh Li/SOCl2 Battery (SDI-12-LB)
72 * Solar panel + 3000mAh Li-ion battery (SDI-12-LS)
73
74 == 1.3 Specification ==
75
76
77 (% style="color:#037691" %)**Micro Controller:**
78
79 * MCU: 48Mhz ARM
80 * Flash: 256KB
81 * RAM: 64KB
82
83 (% style="color:#037691" %)**Common DC Characteristics:**
84
85 * Supply Voltage: Built-in Battery, 2.5v ~~ 3.6v
86 * Support current: 5V 300mA, 12V 100mA
87 * Operating Temperature: -40 ~~ 85°C
88
89 (% style="color:#037691" %)**LoRa Spec:**
90
91 * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
92 * Max +22 dBm constant RF output vs.
93 * RX sensitivity: down to -139 dBm.
94 * Excellent blocking immunity
95
96 (% style="color:#037691" %)**Current Input Measuring :**
97
98 * Range: 0 ~~ 20mA
99 * Accuracy: 0.02mA
100 * Resolution: 0.001mA
101
102 (% style="color:#037691" %)**Voltage Input Measuring:**
103
104 * Range: 0 ~~ 30v
105 * Accuracy: 0.02v
106 * Resolution: 0.001v
107
108 (% style="color:#037691" %)**Battery:**
109
110 * Li/SOCI2 un-chargeable battery
111 * Capacity: 8500mAh
112 * Self-Discharge: <1% / Year @ 25°C
113 * Max continuously current: 130mA
114 * Max boost current: 2A, 1 second
115
116 (% style="color:#037691" %)**Power Consumption**
117
118 * Sleep Mode: 5uA @ 3.3v
119 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
120
121 == 1.4 Connect to SDI-12 Sensor ==
122
123
124 [[image:1675212538524-889.png||_mstalt="298272"]]
125
126
127 == 1.5 Sleep mode and working mode ==
128
129
130 (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
131
132 (% style="color:blue" %)**Working Mode: **(%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
133
134
135 == 1.6 Button & LEDs ==
136
137
138 [[image:image-20250416151419-4.jpeg]]
139
140 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
141 |=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 226px;background-color:#4F81BD;color:white" %)**Action**
142 |(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT between 1s < time < 3s|(% style="background-color:#f2f2f2; width:117px" %)Send an uplink|(% style="background-color:#f2f2f2; width:225px" %)(((
143 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
144 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
145 )))
146 |(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT for more than 3s|(% style="background-color:#f2f2f2; width:117px" %)Active Device|(% style="background-color:#f2f2f2; width:225px" %)(((
147 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
148 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
149 Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
150 )))
151 |(% style="background-color:#f2f2f2; width:167px" %)Fast press ACT 5 times.|(% style="background-color:#f2f2f2; width:117px" %)Deactivate Device|(% style="background-color:#f2f2f2; width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means SDI-12-LB/LS is in Deep Sleep Mode.
152
153 == 1.7 Pin Mapping ==
154
155
156 [[image:1675213198663-754.png||_mstalt="297167"]]
157
158
159 == 1.8 BLE connection ==
160
161
162 SDI-12-LB/LS support BLE remote configure.
163
164 BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
165
166 * Press button to send an uplink
167 * Press button to active device.
168 * Device Power on or reset.
169
170 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
171
172
173 == 1.9 Mechanical ==
174
175 === 1.9.1 for LB version ===
176
177
178 [[image:image-20250416151406-3.jpeg]]
179
180
181 === 1.9.2 for LS version ===
182
183
184 [[image:image-20250329133856-1.jpeg]]
185
186
187 = 2. Configure SDI-12 to connect to LoRaWAN network =
188
189 == 2.1 How it works ==
190
191
192 The SDI-12-LB/LS is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and activate the SDI-12-LB/LS. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
193
194
195 == 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
196
197
198 Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
199
200 [[image:image-20250416151346-2.png]]
201
202
203 The LPS8V2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
204
205
206 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from SDI-12-LB/LS.
207
208 Each SDI-12-LB/LS is shipped with a sticker with the default device EUI as below:
209
210 [[image:image-20230426084456-1.png||height="241" width="519"]]
211
212
213 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
214
215 **Create the application.**
216
217 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SAC01L_LoRaWAN_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20250423093843-1.png?width=756&height=264&rev=1.1||alt="image-20250423093843-1.png"]]
218
219 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111305-2.png?width=1000&height=572&rev=1.1||alt="image-20240907111305-2.png"]]
220
221
222 **Add devices to the created Application.**
223
224 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111659-3.png?width=977&height=185&rev=1.1||alt="image-20240907111659-3.png"]]
225
226 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111820-5.png?width=975&height=377&rev=1.1||alt="image-20240907111820-5.png"]]
227
228
229 **Enter end device specifics manually.**
230
231 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112136-6.png?width=697&height=687&rev=1.1||alt="image-20240907112136-6.png"]]
232
233
234 **Add DevEUI and AppKey.**
235
236 **Customize a platform ID for the device.**
237
238 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112427-7.png?rev=1.1||alt="image-20240907112427-7.png"]]
239
240
241 (% style="color:blue" %)**Step 2: **(%%)Add decoder
242
243 While using TTN network, you can add the payload format to decode the payload.
244
245 There is no fix payload decoder in LoRaWAN server because the SDI-12 sensors returns are different. User need to write the decoder themselves for their case.
246
247 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
248
249 Below is TTN screen shot:
250
251 [[image:image-20241118165746-3.png||height="470" width="869"]]
252
253 [[image:image-20241118165832-4.png||height="336" width="724"]]
254
255
256 (% style="color:blue" %)**Step 3**(%%): Activate on SDI-12-LB/LS
257
258 Press the button for 5 seconds to activate the SDI-12-LB/LS.
259
260 (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode** (%%)for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
261
262 [[image:1675213704414-644.png||_mstalt="293748"]]
263
264
265 == ​2.3 SDI-12 Related Commands ==
266
267
268 User need to configure SDI-12-LB/LS to communicate with SDI-12 sensors otherwise the uplink payload will only include a few bytes.
269
270 If you use UART to connect a computer, refer to the following connection methods:
271
272 [[image:image-20240823165402-1.jpeg||height="488" width="678"]]
273
274 Screenshot example:
275
276 [[image:image-20240823165526-2.png||height="489" width="690"]]
277
278
279
280 === 2.3.1 Basic SDI-12 debug command ===
281
282
283 User can run some basic SDI-12 command to debug the connection to the SDI-12 sensor. These commands can be sent via AT Command or LoRaWAN downlink command.
284
285 If SDI-12 sensor return value after get these commands, //SDI-12-LB/LS// will uplink the return on FPORT=100, otherwise, if there is no response from SDI-12 sensor. //SDI-12-LB/LS// will uplink NULL (0x 4E 55 4C 4C) to server.
286
287 The following is the display information on the serial port and the server.
288
289
290 [[image:image-20230201091027-6.png||_mstalt="429065"]]
291
292
293 [[image:image-20230201091027-7.png||_mstalt="429429" height="261" width="1179"]]
294
295
296
297 ==== (% style="color:blue" %)**al!  ~-~- Get SDI-12 sensor Identification**(%%) ====
298
299
300 * AT Command: AT+ADDRI=aa
301 * LoRaWAN Downlink(prefix 0xAA00): AA 00 aa
302
303 (% style="color:#037691" %)**Parameter:  **(%%)aa: ASCII value of SDI-12 sensor address in downlink or HEX value in AT Command)
304
305 (% style="color:blue" %)**Example :   **(%%)AT+ADDRI=0 ( Equal to downlink: 0x AA 00 30)
306
307
308 The following is the display information on the serial port and the server.
309
310
311 [[image:image-20230201091257-8.png||_mstalt="431392"]]
312
313
314 [[image:image-20230201091257-9.png||_mstalt="431756" height="225" width="1242"]]
315
316
317 ==== (% style="color:blue" %)**aM!,aMC!, aM1!- aM9!, aMC1!- aMC9!**(%%) ====
318
319
320 (% style="color:red" %)**aM! **(%%): Start Non-Concurrent Measurement
321
322 (% style="color:red" %)**aMC! **(%%): Start Non-Concurrent Measurement – Request CRC
323
324 (% style="color:red" %)**aM1!- aM9! **(%%): Additional Measurements
325
326 (% style="color:red" %)**aMC1!- aMC9!**(%%) : Additional Measurements – Request CRC
327
328
329 * AT Command : AT+ADDRM=0,1,0,1
330
331 * LoRaWAN Downlink(prefix 0xAA01): 0xAA 01 30 01 00 01
332
333 Downlink：AA 01 aa bb cc dd
334
335 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
336
337 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
338
339 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
340
341 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%) to get return.
342
343
344 The following is the display information on the serial port and the server.
345
346
347 [[image:image-20230201091630-10.png||_mstalt="449995"]]
348
349
350 [[image:image-20230201091630-11.png||_mstalt="450372" height="247" width="1165"]]
351
352
353
354 ==== (% style="color:blue" %)**aC!, aCC!,  aC1!- aC9!,  aCC1!- aCC9! **(%%) ====
355
356
357 (% style="color:red" %)**aC!**(%%) : Start Concurrent Measurement
358
359 (% style="color:red" %)**aCC!** (%%): Start Concurrent Measurement – Request CRC
360
361 (% style="color:red" %)**aC1!- aC9!**(%%) : Start Additional Concurrent Measurements
362
363 (% style="color:red" %)**aCC1!- aCC9!**(%%) : Start Additional Concurrent Measurements – Request CRC
364
365
366 * AT Command : AT+ADDRC=0,1,0,1 
367
368 * LoRaWAN Downlink(0xAA02): 0xAA 02 30 01 00 01
369
370 Downlink: AA 02 aa bb cc dd
371
372 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
373
374 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
375
376 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
377
378 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%)__ __to get return.
379
380
381 The following is the display information on the serial port and the server.
382
383
384 [[image:image-20230201091954-12.png||_mstalt="453687"]]
385
386
387 [[image:image-20230201091954-13.png||_mstalt="454064" height="203" width="1117"]]
388
389
390
391 ==== (% style="color:blue" %)**aR0!- aR9!,  aRC0!- aRC9!**(%%) ====
392
393
394 Start Continuous Measurement
395
396 Start Continuous Measurement – Request CRC
397
398
399 * AT Command : AT+ADDRR=0,1,0,1 
400 * LoRaWAN Downlink (0xAA 03): 0xAA 03 30 01 00 01
401
402 Downlink: AA 03 aa bb cc dd
403
404 (% style="color:#037691" %)**aa**(%%): SDI-12 sensor address.
405
406 (% style="color:#037691" %)**bb**(%%): 0: no CRC, 1: request CRC
407
408 (% style="color:#037691" %)**cc**(%%): 1-9: Additional Measurement, 0: no additional measurement
409
410 (% style="color:#037691" %)**dd**(%%): delay (in second) to send (% style="color:#037691" %)__**aD0!**__(%%) to get return.
411
412
413 The following is the display information on the serial port and the server.
414
415
416 [[image:image-20230201092208-14.png||_mstalt="452283"]]
417
418
419 [[image:image-20230201092208-15.png||_mstalt="452660" height="214" width="1140"]]
420
421
422 === 2.3.2 Advance SDI-12 Debug command ===
423
424
425 This command can be used to debug all SDI-12 command.
426
427
428 LoRaWAN Downlink: A8 aa xx xx xx xx bb cc dd
429
430 (% style="color:#037691" %)**aa **(%%): total SDI-12 command length
431
432 (% style="color:#037691" %)**xx **(%%): SDI-12 command
433
434 (% style="color:#037691" %)**bb **(%%): Delay to wait for return
435
436 (% style="color:#037691" %)**cc **(%%): 0: don't uplink return to LoRaWAN, 1: Uplink return to LoRaWAN on FPORT=100
437
438 (% style="color:#037691" %)**dd: **(%%) 0: Do not use aD0! command access, 1: use aD0! command access.
439
440
441 (% style="color:blue" %)**Example1: **(%%) AT+CFGDEV =0RC0!,1
442
443 (% style="color:#037691" %)**0RC0! **(%%): SDI-12 Command,
444
445 (% style="color:#037691" %)**1 **(%%): Delay 1 second.  ( 0: 810 mini-second)
446
447 Equal Downlink: 0xA8 05 30 52 43 30 21 01 01
448
449
450 The following is the display information on the serial port and the server.
451
452
453 [[image:image-20230201092355-16.png||_mstalt="453960"]]
454
455
456 [[image:image-20230201092355-17.png||_mstalt="454337" height="426" width="1135"]]
457
458
459 (% style="color:blue" %)**Example2: **(%%) AT+CFGDEV =0M!,1,1
460
461 (% style="color:#037691" %)**0M! **(%%): SDI-12 Command,
462
463 (% style="color:#037691" %)**1 **(%%): Delay 1 second.  ( 0: 810 mini-second)
464
465 (% style="color:#037691" %)**1 **(%%): Use aD0! command access.
466
467 Equal Downlink: 0xA8 03 30  4D 21 01 01 01
468
469
470 The following is the display information on the serial port and the server.
471
472
473 [[image:image-20230628091055-1.png||height="368" width="462"]]
474
475 [[image:image-20230628091130-2.png||height="258" width="879"]]
476
477
478 === 2.3.3 Convert ASCII to String ===
479
480
481 This command is used to convert between ASCII and String format.
482
483 AT+CONVFORM ( Max length: 80 bytes)
484
485
486 (% style="color:blue" %)**Example:**
487
488 1) AT+CONVFORM=0, string Convert String from String to ASCII
489
490 [[image:1675214845056-885.png||_mstalt="297622"]]
491
492
493 2) AT+CONVFORM=1, ASCII Convert ASCII to String.
494
495 [[image:1675214856590-846.png||_mstalt="297739"]]
496
497
498 === 2.3.4 Define periodically SDI-12 commands and uplink. ===
499
500
501 AT+COMMANDx & AT+DATACUTx**&AT+DATACONVx**
502
503 User can define max 15 SDI-12 Commands (AT+COMMAND1 ~~ AT+COMMANDF). On each uplink period (TDC time, default 20 minutes), SDI-12-LB/LS will send these SDI-12 commands and wait for return from SDI-12 sensors. SDI-12-LB/LS will then combine these returns and uplink via LoRaWAN.
504
505
506 * (% style="color:blue" %)**AT Command:**
507
508 (% style="color:#037691" %)**AT+COMMANDx=var1,var2,var3,var4.**
509
510 (% style="color:red" %)**var1**(%%): SDI-12 command , for example: 0RC0!
511
512 (% style="color:red" %)**var2**(%%): Wait timeout for return. (unit: second)
513
514 (% style="color:red" %)**var3**(%%): Whether to send //addrD0!// to get return after var2 timeout. 0: Don't Send //addrD0! //; 1: Send //addrD0!//. (% style="color:red" %)**2: The returned data will not be clipped.(since v1.3.0)**
515
516 (% style="color:red" %)**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
658 (% style="color:blue" %)**Automatically converts polled data to hex format for uplinking(Since v1.3.0)**
659
660
661 This command can retrieve the returned data, convert the number after the positive or negative sign into a data, and then set the number of bytes to upload the data.
662
663
664 * (% style="color:blue" %)**AT Command:**
665
666 The maximum number can be set to 5 groups and the format of the command is as follows：
667
668 (% style="color:#037691" %)**Example 1:AT+DATACONVx=var1, var2**
669
670 (% style="color:#037691" %)**Example 2:AT+DATACONVx=var1, var2+ var3, var4**
671
672 (% style="color:#037691" %)**Example 3:AT+DATACONVx=var1, var2+ var3, var4+ var5, var6**
673
674 (% style="color:#037691" %)**Example 4:AT+DATACONVx=var1, var2+ var3, var4+ var5, var6+ var7, var8**
675
676 (% style="color:#037691" %)**Example 5:AT+DATACONVx=var1, var2+ var3, var4+ var5, var6+ var7, var8+ var9, var10**
677
678 (% style="color:red" %)**Notice: Among them, var1, var3, var5, var7, and var9 are the data to be selected for conversion, and var2, var4, var6, var8, and var10 are the number of bytes to be uploaded. The values of var2, var4, var6, var8, and var10 range from 1 to 4.**
679
680
681 **For example:**
682
683 This is my configuration:
684
685 [[image:image-20250516103205-2.png]]
686
687
688 * AT+COMMAND1=0C!,0,2,0  After sending the concurrent command of device 0, the data will not be cut, and the next command will be sent immediately.
689 * AT+COMMAND2=0M!,1,2,0  After sending the concurrent command of device 0, do not cut the data and wait for one second. (The last concurrent command needs to wait for the measurement time of all sensors)
690 * AT+COMMAND3=0D0!,0,0,0  Query the data measured by device 0
691
692
693 This is the data obtained:
694
695 [[image:image-20250516103652-3.png]]
696
697
698 When using the AT+DATACONVx command,
699
700 The data of RETURN3 will be converted into 2 data, the first data is +101, and the second data is +263.
701
702 * AT+DATACONV3=1,2+2,2  The first data is uploaded as 2 bytes and the second data is uploaded as 2 bytes. The form converted to hexadecimal is as shown above,as below:
703
704
705
706 == 2.4 Uplink Payload ==
707
708 === 2.4.1 Device Payload, FPORT~=5 ===
709
710
711 Include device configure status. Once SDI-12-LB/LS Joined the network, it will uplink this message to the server.
712
713 Users can also use the downlink command(0x26 01) to ask SDI-12-LB/LS to resend this uplink.
714
715 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
716 |(% colspan="6" style="background-color:#4f81bd; color:white" %)**Device Status (FPORT=5)**
717 |(% 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**
718 |(% 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
719
720 Example parse in TTNv3
721
722 [[image:1675215946738-635.png||_mstalt="297778"]]
723
724
725 (% style="color:#037691" %)**Sensor Model**(%%): For SDI-12-LB/LS, this value is 0x17
726
727 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
728
729 (% style="color:#037691" %)**Frequency Band**:
730
731 0x01: EU868
732
733 0x02: US915
734
735 0x03: IN865
736
737 0x04: AU915
738
739 0x05: KZ865
740
741 0x06: RU864
742
743 0x07: AS923
744
745 0x08: AS923-1
746
747 0x09: AS923-2
748
749 0x0a: AS923-3
750
751 0x0b: CN470
752
753 0x0c: EU433
754
755 0x0d: KR920
756
757 0x0e: MA869
758
759
760 (% style="color:#037691" %)**Sub-Band**:
761
762 AU915 and US915:value 0x00 ~~ 0x08
763
764 CN470: value 0x0B ~~ 0x0C
765
766 Other Bands: Always 0x00
767
768
769 (% style="color:#037691" %)**Battery Info**:
770
771 Check the battery voltage.
772
773 Ex1: 0x0B45 = 2885mV
774
775 Ex2: 0x0B49 = 2889mV
776
777
778 === 2.4.2 Uplink Payload, FPORT~=2 ===
779
780
781 There are different cases for uplink. See below
782
783 * SDI-12 Debug Command return: FPORT=100
784
785 * Periodically Uplink: FPORT=2
786
787 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
788 |=(% style="width: 90px;background-color:#4F81BD;color:white" %)(((
789 **Size(bytes)**
790 )))|=(% 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**
791 |(% style="width:93px" %)Value|(% style="width:83px" %)(((
792 Battery(mV)
793 &
794 Interrupt_Flag
795 )))|(% style="width:91px" %)[[PAYLOAD_VER>>||anchor="H3.6Setthepayloadversion"]]|(% style="width:212px" %)(((
796 If the valid payload is too long and exceed the maximum support.
797 Payload length in server,server will show payload not provided in the LoRaWAN server.
798 )))
799
800 [[image:1675216282284-923.png||_mstalt="295633"]]
801
802
803 === 2.4.3 Battery Info ===
804
805
806 Check the battery voltage for SDI-12-LB/LS.
807
808 Ex1: 0x0B45 = 2885mV
809
810 Ex2: 0x0B49 = 2889mV
811
812
813 === 2.4.4 Interrupt Pin ===
814
815
816 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"]].
817
818 **Example:**
819
820 Ex1: 0x0B45:0x0B&0x80= 0x00    Normal uplink packet.
821
822 Ex2: 0x8B49:0x8B&0x80= 0x80    Interrupt Uplink Packet.
823
824
825 === 2.4.5 Payload version ===
826
827
828 The version number of the payload, mainly used for decoding. The default is 01.
829
830
831 === 2.4.6 ​Decode payload in The Things Network ===
832
833
834 While using TTN network, you can add the payload format to decode the payload.
835
836 [[image:1675216779406-595.png||_mstalt="298376"]]
837
838
839 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.
840
841 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
842
843
844 == 2.5 Uplink Interval ==
845
846
847 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:
848
849 [[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]]
850
851
852 == 2.6 Examples To Set SDI commands ==
853
854 === 2.6.1 Examples 1 ~-~- General Example ===
855
856
857 COM port and SDI-12 sensor communication converted to SDI-12-LB/LS and SDI-12 sensor communication.
858
859 [[image:image-20230222143809-1.png||_mstalt="429962" height="564" width="729"]]
860
861
862 (% style="color:blue" %)**1) The AT+COMMANDx command is applied to the red arrow part, and sends the SDI12 command to the SDI12 sensor:**
863
864 a. Send the first command and get the first reply：
865
866 (% style="color:#037691" %)**AT+COMMANDx=1I!,0,0,1**
867
868 b. Send the second command and get the second reply：
869
870 (% style="color:#037691" %)**AT+COMMANDx=2I!,0,0,1**
871
872 c. Send the third command and get the third reply：
873
874 (% style="color:#037691" %)**AT+COMMANDx=3I!,0,0,1**
875
876 d. Send the fourth command and get the fourth reply：
877
878 (% style="color:#037691" %)**AT+COMMANDx=4I!,0,0,1**
879
880 e. Send the fifth command plus the sixth command, get the sixth reply：
881
882 (% style="color:#037691" %)**AT+COMMANDx=1M!,2,1,1**
883
884 f. Send the seventh command plus the eighth command, get the eighth reply：
885
886 (% style="color:#037691" %)**AT+COMMANDx=2M!,2,1,1**
887
888 g. Send the ninth command plus the tenth command, get the tenth reply：
889
890 (% style="color:#037691" %)**AT+COMMANDx=3M!,1,1,1**
891
892 h. Send the eleventh command plus the twelfth command, get the twelfth reply：
893
894 (% style="color:#037691" %)**AT+COMMANDx=4M!,1,1,1**
895
896
897 (% style="color:blue" %)**2) The AT+DATACUTx command is applied to the green arrow part, receiving and cut out data from the SDI12 sensor:**
898
899 a. The first reply, all 34 characters: ”113TRUEBNERSMT100038220303182331<CR><LF>”
900
901 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=34,2,1~~34**(% style="color:#037691" %);
902
903 b. The sixth reply, all 31 characters: "1+19210+1.04+0.00+22.49+11.75<CR><LF>"
904
905 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
906
907 c. The eighth reply, all 31 characters: "2+18990+1.08+0.00+22.24+11.80<CR><LF>"
908
909 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
910
911 d. The tenth reply, all 15 characters: "3-2919.8+24.0<CR><LF>"
912
913 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=15,2,1~~15**(% style="color:#037691" %);
914
915 e. The twelfth reply, all 25 characters: "4+30.8+22.84+4.7+954.38<CR><LF>"
916
917 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"**.
918
919
920 === 2.6.2 Example 2 ~-~- Connect to Hygrovue10 ===
921
922 ==== 2.6.2.1 Reference Manual and Command ====
923
924
925 * [[Hygrovue10 Product Page>>https://www.campbellsci.com/hygrovue10]]
926
927 * Commands to be used in PC and output.
928
929 ~1. check device address
930
931 2. change device address
932
933 3. check device ID
934
935 4. start measure
936
937 5. Get Meausre result
938
939 [[image:image-20230603120209-2.png||height="281" width="267"]]
940
941
942 ==== 2.6.2.2 Hardware Connection to SDI-12-LB/LS ====
943
944
945 [[image:image-20230603120515-3.png]]
946
947
948 ==== 2.6.2.3 Commands set in SDI-12-LB/LS and uplink payload ====
949
950
951 [[image:image-20230603120648-4.png]]
952
953 [[image:image-20230603120726-5.png]]
954
955
956 **Data in TTN:**
957
958 [[image:image-20230603120859-6.png||height="118" width="1285"]]
959
960
961 === 2.6.3 Example 3 ~-~- Connect to SIL-400 ===
962
963 ==== 2.6.3.1 Reference Manual and Command ====
964
965
966 * [[SIL-400 Product Page>>https://www.apogeeinstruments.com/sil-411-commercial-grade-sdi-12-digital-output-standard-field-of-view-infrared-radiometer-sensor/]]
967
968 * Commands to be used in PC and output.
969
970 ~1. check device address
971
972 2. change device address
973
974 3. check device ID
975
976 4. start measure
977
978 5. Get Meausre result
979
980 [[image:image-20230603121606-7.png||height="242" width="307"]]
981
982
983 ==== 2.6.3.2 Hardware Connection to SDI-12-LB/LS ====
984
985
986 [[image:image-20230603121643-8.png||height="442" width="656"]]
987
988
989 ==== 2.6.3.3 Commands set in SDI-12-LB/LS and uplink payload ====
990
991
992 [[image:image-20230603121721-9.png]]
993
994 [[image:image-20230628090323-1.png||height="414" width="694"]]
995
996 Data in TTN:
997
998 [[image:image-20230603121826-11.png||height="155" width="1104"]]
999
1000
1001 === 2.6.4 Example 4 ~-~- Connect to TEROS-12 ===
1002
1003 ==== 2.6.4.1 Reference Manual and Command ====
1004
1005
1006 * [[TEROS-12 Product Page>>https://www.metergroup.com/en/meter-environment/products/teros-12-soil-moisture-sensor]]
1007
1008 * Commands to be used in PC and output.
1009
1010 1.check device address
1011
1012 2.change device address
1013
1014 3.check device ID
1015
1016 4.start measure
1017
1018 5.Get Meausre result
1019
1020 [[image:image-20230603122248-16.png||height="196" width="198"]]
1021
1022
1023 ==== 2.6.4.2 Hardware Connection to SDI-12-LB/LS ====
1024
1025
1026 [[image:image-20230603122212-15.png||height="502" width="667"]]
1027
1028
1029 ==== 2.6.4.3 Commands set in SDI-12-LB/LS and uplink payload ====
1030
1031
1032 [[image:image-20230603122040-12.png]]
1033
1034 [[image:image-20230603122109-13.png||height="469" width="762"]]
1035
1036
1037 **Data in TTN:**
1038
1039 [[image:image-20230603122139-14.png||height="148" width="1128"]]
1040
1041
1042 === 2.6.5 Example 5 ~-~- Connect to SIL-400/TEROS-12 & Hygrovue10 ===
1043
1044 ==== 2.6.5.1 Important Notice! ====
1045
1046
1047 * The product page and reference command see above example 2,3,4
1048
1049 * 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.
1050
1051 * 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.
1052
1053 * If these SDI-12 sensors are powered by external power source. It will add 300uA in the total current in SDI-12-LB/LS.
1054
1055 ==== 2.6.5.2 Hardware Connection to SDI-12-LB/LS ====
1056
1057
1058 [[image:image-20230603122508-17.png||height="526" width="742"]]
1059
1060
1061 ==== 2.6.5.3 Commands set in SDI-12-LB/LS and uplink payload ====
1062
1063
1064 [[image:image-20230603122549-18.png]]
1065
1066 [[image:image-20230603122623-19.png||height="483" width="1121"]]
1067
1068
1069 **Data in TTN:**
1070
1071 [[image:image-20230603122719-20.png||height="151" width="1179"]]
1072
1073
1074 === 2.6.6 Example 6 ~-~- Connect to ENTELECHY-EP_SDI-12 ===
1075
1076 ==== 2.6.6.1 Reference Manual and Command ====
1077
1078
1079 * [[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]]
1080
1081 * Commands to be used in PC and output.
1082
1083 1.check device address
1084
1085 2.change device address
1086
1087 3.check device ID
1088
1089 4.start measure
1090
1091 5.Get Meausre result
1092
1093
1094 [[image:image-20230627174559-3.png]]
1095
1096
1097 ==== 2.6.6.2 Hardware Connection to SDI-12-LB/LS ====
1098
1099
1100 [[image:image-20230627174446-2.png]]
1101
1102
1103 ==== 2.6.6.3 Commands set in SDI-12-LB/LS and uplink payload ====
1104
1105
1106 [[image:image-20230627175513-4.png||height="596" width="576"]]
1107
1108 [[image:image-20230627175736-5.png||height="429" width="693"]]
1109
1110
1111 **Data in TTN:**
1112
1113 [[image:image-20230627180303-6.png||height="292" width="1171"]]
1114
1115
1116 === 2.6.7 Example 7 ~-~- Connect to GroPoint Profile-8 (SDI-12 Version) ===
1117
1118 ==== 2.6.7.1  Reference Manual and Command ====
1119
1120
1121 * [[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]]
1122
1123 * Commands to be used in PC and output.
1124
1125 1. check device address
1126 1. change device address
1127 1. check device ID
1128 1. start measure
1129 1. Get Meausre result
1130
1131 [[image:image-20240423143921-1.png]]
1132
1133
1134 ==== 2.6.7.2 Hardware Connection to SDI-12-LB/LS ====
1135
1136
1137 (% 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.)**
1138
1139 [[image:image-20240423145522-2.png||height="345" width="400"]]
1140
1141
1142 ==== 2.6.7.3 Commands set in SDI-12-LB/LS and uplink payload ====
1143
1144 [[image:image-20240423151202-3.png]]
1145
1146 (% class="wikigeneratedid" id="H" %)
1147 [[image:image-20240423162851-6.png||height="251" width="935"]]
1148
1149
1150 DATA in TTN:
1151
1152 [[image:image-20240423162322-4.png||height="269" width="933"]]
1153
1154
1155 === 2.6.8 Example 8 ~-~- Connect to Acclima TDR Soil Moisture Sensor ===
1156
1157 ==== 2.6.8.1  Reference Manual and Command ====
1158
1159
1160 * [[Acclima TDR Soil Moisture Sensor User Manual>>url:https://acclima.com/tdr-soil-moisture-sensor-user-manual/]]
1161
1162 * Commands to be used in PC and output.
1163
1164 1. check device address
1165 1. change device address
1166 1. check device ID
1167 1. start measure
1168 1. Get Meausre result
1169
1170 [[image:image-20240903152650-3.png]]
1171
1172 [[image:image-20240903152627-2.png]]
1173
1174
1175 ==== 2.6.8.2 Hardware Connection to SDI-12-LB/LS ====
1176
1177
1178 (% 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.)**
1179
1180 [[image:image-20240903153004-5.png||height="358" width="660"]]
1181
1182
1183 ==== 2.6.8.3 Commands set in SDI-12-LB/LS and uplink payload ====
1184
1185
1186 [[image:image-20240903153258-6.png]]
1187
1188 [[image:image-20240903153627-7.png]]
1189
1190 DATA in TTN:
1191
1192 [[image:image-20240903154020-10.png||height="467" width="961"]]
1193
1194
1195 == 2.7 Frequency Plans ==
1196
1197
1198 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.
1199
1200 [[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/]]
1201
1202
1203 == 2.8 Firmware Change Log ==
1204
1205
1206 **Firmware download link:**
1207
1208 [[https:~~/~~/www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0>>https://www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0]]
1209
1210
1211
1212 == 2.9 Datalog Feature(Since v1.3.0) ==
1213
1214
1215 (((
1216 Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, SDI-12-LB will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from SDI-12-LB.
1217 )))
1218
1219
1220 === 2.9.1 Ways to get datalog via LoRaWAN ===
1221
1222
1223 There are two methods:
1224
1225 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.8.4Pollsensorvalue"]] for specified time range.
1226
1227
1228 (% style="color:blue" %)**Method 2: **(%%)Set PNACKMD=1, SDI-12-LB will wait for ACK for every uplink, when there is no LoRaWAN network, SDI-12-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
1229
1230
1231 (% style="color:red" %)**Note for method 2:**
1232
1233 * a) SDI-12-LB will do an ACK check for data records sending to make sure every data arrive server.
1234 * b) SDI-12-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but SDI-12-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if SDI-12-LB gets a ACK, SDI-12-LB will consider there is a network connection and resend all NONE-ACK Message.
1235
1236 === 2.9.2 Unix TimeStamp ===
1237
1238
1239 SDI-12-LB uses Unix TimeStamp format based on
1240
1241 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="image-20220523001219-11.png"]]
1242
1243
1244 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
1245
1246 Below is the converter example
1247
1248 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-12.png?width=720&height=298&rev=1.1||alt="image-20220523001219-12.png"]]
1249
1250 So, we can use AT+TIMESTAMP=1742889625 or downlink 3067E26299 to set the current time 2025 – March ~-~- 25 Tuesday  08:00:25
1251
1252
1253 === 2.9.3 Set Device Time ===
1254
1255
1256 (((
1257 (% style="color:blue" %)**There are two ways to set device's time:**
1258 )))
1259
1260 (((
1261 **1.  Through LoRaWAN MAC Command (Default settings)**
1262 )))
1263
1264 (((
1265 User need to set SYNCMOD=1 to enable sync time via MAC command.
1266 )))
1267
1268 (((
1269 Once SDI-12-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to SDI-12-LB. If SDI-12-LB fails to get the time from the server, SDI-12-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
1270 )))
1271
1272 (((
1273 (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
1274 )))
1275
1276
1277 (((
1278 **2. Manually Set Time**
1279 )))
1280
1281 (((
1282 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
1283 )))
1284
1285
1286 === 2.9.4 Poll sensor value ===
1287
1288
1289 User can poll sensor value based on timestamps from the server. Below is the downlink command.
1290
1291 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:438.778px" %)
1292 |(% style="background-color:#4f81bd; color:white; width:59px" %)**1byte**|(% style="background-color:#4f81bd; color:white; width:123px" %)**4bytes**|(% style="background-color:#4f81bd; color:white; width:114px" %)**4bytes**|(% style="background-color:#4f81bd; color:white; width:142.778px" %)**1byte**
1293 |(% style="width:58px" %)31|(% style="width:123px" %)Timestamp start|(% style="width:114px" %)Timestamp end|(% style="width:137px" %)(((
1294 Uplink Interval(range 5~~255s)
1295 )))
1296
1297 Timestamp start and Timestamp end use Unix TimeStamp format as mentioned above. Devices will reply with all data log during this time period, use the uplink interval.
1298
1299 For example, downlink command (% _mstmutation="1" %)**31 68253B6E 68253E23 05**(%%)
1300
1301 Is to check 2025/05/15 00:55:10 to 2025/05/15 01:06:43's data
1302
1303 Uplink Internal =5s, means SDI-12-LB will send one packet every 5s.
1304
1305
1306 === 2.9.5 Datalog Uplink payload ===
1307
1308
1309 The Datalog poll reply uplink will use below payload format.
1310
1311 **Retrieval data payload:**
1312
1313 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:480px" %)
1314 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
1315 **Size(bytes)**
1316 )))|=(% style="width: 100px; background-color: rgb(79, 129, 189); color: white;" %)**4**|=(% style="width: 100px; background-color: rgb(79, 129, 189); color: white;" %)**1**|=(% style="width: 220px; background-color: rgb(79, 129, 189); color: white;" %)**Length depends on the return from the commands**
1317 |(% style="width:97px" %)Value|(% style="width:104px" %)Unix Time Stamp|(% style="width:109px" %)Payload Length|(% style="width:165px" %)Data returned by the sensor
1318
1319 **Example:**
1320
1321 If SDI-12-LB has below data inside Flash:
1322
1323 (Soil sensors using the SDI-12 protocol are used for testing.)
1324
1325 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1326 |=(% style="width: 88px; background-color:#4F81BD;color:white" %)Flash Add|=(% style="width: 98px; background-color: rgb(79, 129, 189); color: white;" %)**Unix Time**|=(% style="width: 82px; background-color: rgb(79, 129, 189); color: white;" %)Payload Length|=(% style="width: 86px; background-color: rgb(79, 129, 189); color: white;" %)**BAT voltage**|=(% style="width: 92px; background-color: rgb(79, 129, 189); color: white;" %)Payload Version|=(% style="width: 64px; background-color:#4F81BD;color:white" %)**Value**
1327 |(% style="width:89px" %)(((
1328 0001
1329 )))|(% style="width:98px" %)(((
1330 2025/3/25 08:09:30
1331 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1332 0c a8
1333 )))|(% style="width:92px" %)01|(% style="width:131px" %)(((
1334 08 21
1335 )))
1336 |(% style="width:89px" %)0002|(% style="width:98px" %)(((
1337 2025/3/25 08:10:30
1338 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1339 0c ae
1340 )))|(% style="width:92px" %)01|(% style="width:131px" %)(((
1341 08 22
1342 )))
1343 |(% style="width:89px" %)0003|(% style="width:98px" %)(((
1344 2025/3/25 08:11:30
1345 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1346 |(% style="width:89px" %)0004|(% style="width:98px" %)(((
1347 2025/3/25 08:12:30
1348 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1349 |(% style="width:89px" %)0005|(% style="width:98px" %)(((
1350 2025/3/25 08:13:30
1351 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1352 0c b4
1353 )))|(% style="width:92px" %)01|(% style="width:131px" %)08 23
1354 |(% style="width:89px" %)0006|(% style="width:98px" %)(((
1355 2025/3/25 08:14:30
1356 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1357 |(% style="width:89px" %)0007|(% style="width:98px" %)(((
1358 2025/3/25 08:15:30
1359 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c b4|(% style="width:92px" %)01|(% style="width:131px" %)08 23
1360 |(% style="width:89px" %)0008|(% style="width:98px" %)(((
1361 2025/3/25 08:16:30
1362 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1363
1364 If user sends below downlink command: (% style="background-color:yellow" %)3168253B6E68253E2305
1365
1366 Where : Start time: (% _mstmutation="1" %)68253B6E (%%)= time 2025/05/15 00:55:10
1367
1368 Stop time: (% _mstmutation="1" %)68253E23 (%%)= time 2025/05/15 01:06:43
1369
1370
1371 **SDI-12-LB will uplink this payload.**
1372
1373 **68253B6E 12 0C7801F10D302B312E31372B32362E390D0A **68253C5D120C7801F10D302B312E31372B32372E340D0A68253D33120C7201F10D302B312E31352B32382E390D0A68253DAB120C7201F10D302B312E31342B32392E340D0A68253E23120C7201F10D302B312E31332B33302E300D0A
1374
1375
1376 Where the first 23 bytes is for the first entry:
1377
1378 **68253B6E 12 0C7801F10D302B312E31372B32362E390D0A**
1379
1380 Unix Time Stamp: 68253B6E(H)=1747270510(D)  ~-~->  time=2025-05-15 8:55:00
1381
1382 Payload Length: 0x12(H)=18 bytes
1383
1384 Battery voltage: 0x0C78(H)=3192 mV
1385
1386 Payload Version:  01
1387
1388 Value: For the distance sensor used for testing, this value is the mm distance value, 0xF10D302B312E31372B32362E390D0A(H)
1389
1390
1391
1392 = 3. Configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink =
1393
1394
1395 Use can configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink.
1396
1397 * AT Command Connection: See [[FAQ>>||anchor="H7.FAQ"]].
1398 * LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
1399
1400 There are two kinds of commands to configure SDI-12-LB/LS, they are:
1401
1402 * (% style="color:blue" %)**General Commands**.
1403
1404 These commands are to configure:
1405
1406 * General system settings like: uplink interval.
1407 * LoRaWAN protocol & radio related command.
1408
1409 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
1410
1411 [[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/]]
1412
1413
1414 * (% style="color:blue" %)**Commands special design for SDI-12-LB/LS**
1415
1416 These commands only valid for SDI-12-LB/LS, as below:
1417
1418
1419 == 3.1 Set Transmit Interval Time ==
1420
1421
1422 Feature: Change LoRaWAN End Node Transmit Interval.
1423
1424 (% style="color:blue" %)**AT Command: AT+TDC**
1425
1426 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1427 |=(% 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**
1428 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=?|(% style="background-color:#f2f2f2; width:166px" %)Show current transmit Interval|(% style="background-color:#f2f2f2" %)(((
1429 30000
1430 OK
1431 the interval is 30000ms = 30s
1432 )))
1433 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=60000|(% style="background-color:#f2f2f2; width:166px" %)Set Transmit Interval|(% style="background-color:#f2f2f2" %)(((
1434 OK
1435 Set transmit interval to 60000ms = 60 seconds
1436 )))
1437
1438 (% style="color:blue" %)**Downlink Command: 0x01**
1439
1440 Format: Command Code (0x01) followed by 3 bytes time value.
1441
1442 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1443
1444 * Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1445 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
1446
1447 == 3.2 Set Interrupt Mode ==
1448
1449
1450 Feature, Set Interrupt mode for GPIO_EXIT.
1451
1452 (% style="color:blue" %)**AT Command: AT+INTMOD**
1453
1454 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1455 |=(% 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**
1456 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=?|(% style="background-color:#f2f2f2; width:196px" %)Show current interrupt mode|(% style="background-color:#f2f2f2; width:157px" %)(((
1457 0
1458 OK
1459 the mode is 0 =Disable Interrupt
1460 )))
1461 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=2|(% style="background-color:#f2f2f2; width:196px" %)(((
1462 Set Transmit Interval
1463 0. (Disable Interrupt),
1464 ~1. (Trigger by rising and falling edge)
1465 2. (Trigger by falling edge)
1466 3. (Trigger by rising edge)
1467 )))|(% style="background-color:#f2f2f2; width:157px" %)OK
1468
1469 (% style="color:blue" %)**Downlink Command: 0x06**
1470
1471 Format: Command Code (0x06) followed by 3 bytes.
1472
1473 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1474
1475 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
1476 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
1477
1478 == 3.3 Set the output time ==
1479
1480
1481 Feature, Control the output 3V3 , 5V or 12V.
1482
1483 (% style="color:blue" %)**AT Command: AT+3V3T**
1484
1485 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:474px" %)
1486 |=(% 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**
1487 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=?|(% style="background-color:#f2f2f2; width:201px" %)Show 3V3 open time.|(% style="background-color:#f2f2f2; width:116px" %)(((
1488 0
1489 OK
1490 )))
1491 |(% 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" %)(((
1492 OK
1493 default setting
1494 )))
1495 |(% 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" %)(((
1496 OK
1497 )))
1498 |(% 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" %)(((
1499 OK
1500 )))
1501
1502 (% style="color:blue" %)**AT Command: AT+5VT**
1503
1504 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:470px" %)
1505 |=(% 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**
1506 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=?|(% style="background-color:#f2f2f2; width:196px" %)Show 5V open time.|(% style="background-color:#f2f2f2; width:114px" %)(((
1507 0
1508 OK
1509 )))
1510 |(% 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" %)(((
1511 OK
1512 default setting
1513 )))
1514 |(% 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" %)(((
1515 OK
1516 )))
1517 |(% 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" %)(((
1518 OK
1519 )))
1520
1521 (% style="color:blue" %)**AT Command: AT+12VT **
1522
1523 (% style="color:blue" %)**(The v1.2 version is enabled for 1 second by default, and the version below v1.2 is disabled by default)**
1524
1525 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:443px" %)
1526 |=(% 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**
1527 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=?|(% style="background-color:#f2f2f2; width:199px" %)Show 12V open time.|(% style="background-color:#f2f2f2; width:83px" %)(((
1528 0
1529 OK
1530 )))
1531 |(% 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
1532 |(% 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" %)(((
1533 OK
1534 )))
1535
1536 (% style="color:blue" %)**Downlink Command: 0x07**
1537
1538 Format: Command Code (0x07) followed by 3 bytes.
1539
1540 The first byte is which power, the second and third bytes are the time to turn on.
1541
1542 * Example 1: Downlink Payload: 070101F4  **~-~-->**  AT+3V3T=500
1543 * Example 2: Downlink Payload: 0701FFFF   **~-~-->**  AT+3V3T=65535
1544 * Example 3: Downlink Payload: 070203E8  **~-~-->**  AT+5VT=1000
1545 * Example 4: Downlink Payload: 07020000  **~-~-->**  AT+5VT=0
1546 * Example 5: Downlink Payload: 070301F4  **~-~-->**  AT+12VT=500
1547 * Example 6: Downlink Payload: 07030000  **~-~-->**  AT+12VT=0
1548
1549 == 3.4 Set the all data mode ==
1550
1551
1552 Feature, Set the all data mode.
1553
1554 (% style="color:blue" %)**AT Command: AT+ALLDATAMOD**
1555
1556 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1557 |=(% style="background-color:#4F81BD;color:white" %)**Command Example**|=(% style="background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1558 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=?|(% style="background-color:#f2f2f2" %)Show current all data mode|(% style="background-color:#f2f2f2" %)(((
1559 0
1560 OK
1561 )))
1562 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=1|(% style="background-color:#f2f2f2" %)Set all data mode is 1.|(% style="background-color:#f2f2f2" %)OK
1563
1564 (% style="color:blue" %)**Downlink Command: 0xAB**
1565
1566 Format: Command Code (0xAB) followed by 1 bytes.
1567
1568 * Example 1: Downlink Payload: AB 00  ~/~/  AT+ALLDATAMOD=0
1569 * Example 2: Downlink Payload: AB 01  ~/~/  AT+ALLDATAMOD=1
1570
1571 == 3.5 Set the splicing payload for uplink ==
1572
1573
1574 Feature, splicing payload for uplink.
1575
1576 (% style="color:blue" %)**AT Command: AT+DATAUP**
1577
1578 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1579 |=(% 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**
1580 |(% 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" %)(((
1581 0
1582 OK
1583 )))
1584 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =0|(% style="background-color:#f2f2f2; width:266px" %)(((
1585 Set splicing payload for uplink mode is 0.
1586 )))|(% style="background-color:#f2f2f2" %)(((
1587 OK
1588 )))
1589 |(% 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
1590 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =1,20000|(% style="background-color:#f2f2f2; width:266px" %)(((
1591 Set splicing payload for uplink mode is 1, and the uplink interval of each splice to 20000 milliseconds.
1592 )))|(% style="background-color:#f2f2f2" %)OK
1593
1594 (% style="color:blue" %)**Downlink Command: 0xAD**
1595
1596 Format: Command Code (0xAD) followed by 1 bytes or 5 bytes.
1597
1598 * Example 1: Downlink Payload: AD 00  ~/~/  AT+DATAUP=0
1599 * Example 2: Downlink Payload: AD 01  ~/~/  AT+DATAUP =1
1600 * Example 3: Downlink Payload: AD 01 00 00 14  ~/~/  AT+DATAUP =1,20000
1601
1602 This means that the interval is set to 0x000014=20S
1603
1604
1605 == 3.6 Set the payload version ==
1606
1607
1608 Feature, Set the payload version.
1609
1610 (% style="color:blue" %)**AT Command: AT+PAYVER**
1611
1612 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1613 |=(% 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**
1614 |(% style="background-color:#f2f2f2; width:158px" %)AT+PAYVER=?|(% style="background-color:#f2f2f2; width:192px" %)Show current payload version|(% style="background-color:#f2f2f2" %)(((
1615 1
1616 OK
1617 )))
1618 |(% 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
1619
1620 (% style="color:blue" %)**Downlink Command: 0xAE**
1621
1622 Format: Command Code (0xAE) followed by 1 bytes.
1623
1624 * Example 1: Downlink Payload: AE 01  ~/~/  AT+PAYVER=1
1625 * Example 2: Downlink Payload: AE 05  ~/~/  AT+PAYVER=5
1626
1627 === 3.7 Print data entries base on page(Since v1.3.0) ===
1628
1629
1630 Feature: Print the sector data from start page to stop page (max is 416 pages).
1631
1632 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1633
1634 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1635 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1636 |(% style="width:156px" %)(((
1637 AT+PDTA=1,2
1638 Print page 1 to 2
1639 )))|(% style="width:311px" %)(((
1640 Stop Tx and RTP events when read sensor data
1641
1642 8033330 2025/5/14 12:27:32 18 0c 84 01 f1 0d 30 2b 31 2e 30
1643
1644 8033340 38 2b 32 34 2e 36 0d 0a
1645
1646 8033350 2025/5/14 12:29:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1647
1648 8033360 38 2b 32 34 2e 36 0d 0a
1649
1650 8033370 2025/5/14 12:31:32 18 0c 78 01 f1 0d 30 2b 31 2e 30
1651
1652 8033380 38 2b 32 34 2e 36 0d 0a
1653
1654 8033390 2025/5/14 12:33:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1655
1656 80333A0 38 2b 32 34 2e 36 0d 0a
1657
1658 80333B0 2025/5/14 12:35:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1659
1660 80333C0 38 2b 32 34 2e 36 0d 0a
1661
1662
1663 OK
1664 )))
1665
1666 (% style="color:#4f81bd" %)**Downlink Command:**
1667
1668 No downlink commands for feature
1669
1670
1671 === 3.8 Print last few data entries(Since v1.3.0) ===
1672
1673
1674 Feature: Print the last few data entries
1675
1676 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1677
1678 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1679 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1680 |(% style="width:156px" %)(((
1681 AT+PLDTA=10
1682 Print last 10 entries
1683 )))|(% style="width:311px" %)(((
1684 Stop Tx events when read sensor data
1685
1686 0001-0002 2025/5/15 01:04:43 18 0c 72 01 f1 0d 30 2b 31 2e 31 34 2b 32 39 2e 34 0d 0a
1687
1688 0003-0004 2025/5/15 01:06:43 18 0c 72 01 f1 0d 30 2b 31 2e 31 33 2b 33 30 2e 30 0d 0a
1689
1690 0005-0006 2025/5/15 01:08:43 18 0c 7e 01 f1 0d 30 2b 31 2e 33 30 2b 33 30 2e 35 0d 0a
1691
1692 0007-0008 2025/5/15 01:10:43 18 0c 72 01 f1 0d 30 2b 31 2e 33 30 2b 33 31 2e 30 0d 0a
1693
1694 0009-0010 2025/5/15 01:12:43 18 0c 72 01 f1 0d 30 2b 31 2e 33 30 2b 33 31 2e 31 0d 0a
1695
1696 Start Tx events
1697
1698 OK
1699 )))
1700
1701 (% style="color:#4f81bd" %)**Downlink Command:**
1702
1703 No downlink commands for feature
1704
1705
1706 === 3.9 Clear Flash Record(Since v1.3.0) ===
1707
1708
1709 Feature: Clear flash storage for data log feature.
1710
1711 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1712
1713 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1714 |(% style="background-color:#4f81bd; color:white; width:157px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:137px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:209px" %)**Response**
1715 |(% style="width:155px" %)AT+CLRDTA |(% style="width:134px" %)Clear date record|(% style="width:209px" %)(((
1716 Clear all stored sensor data…
1717
1718 OK
1719 )))
1720
1721 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1722
1723 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1724
1725
1726
1727 == 3.10 SDI12 timing(Since v1.3.0) ==
1728
1729
1730 Feature: Get or set the time of SDI12 timing.
1731
1732 [[image:1747289896656-580.png||height="414" width="566"]]
1733
1734 (% style="color:#4f81bd" %)**AT Command: AT+SDITIMING**
1735
1736 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1737 |(% style="background-color:#4f81bd; color:white; width:157px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:167px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:177px" %)**Response**
1738 |(% style="width:155px" %)(((
1739 AT+SDITIMING=13,9
1740
1741
1742 )))|(% style="width:167px" %)Get or set the time of SDI12 timing|(% style="width:177px" %)(((
1743 OK
1744
1745 Default: 13,9
1746 )))
1747
1748 (% style="color:#4f81bd" %)**Downlink Command: 0xA9**
1749
1750 * Example: 0xA90D09  ~/~/  Same as AT+SDITIMING=13,9
1751
1752 = 4. Battery & Power Consumption =
1753
1754
1755 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.
1756
1757 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
1758
1759
1760 = 5. Remote Configure device =
1761
1762 == 5.1 Connect via BLE ==
1763
1764
1765 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/]]
1766
1767
1768 == 5.2 AT Command Set ==
1769
1770
1771
1772 = 6. OTA firmware update =
1773
1774
1775 Please see this link for how to do OTA firmware update.
1776
1777 [[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/]]
1778
1779
1780 = 7. FAQ =
1781
1782 == 7.1 How to use AT Command  via UART to access device? ==
1783
1784
1785 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]]
1786
1787
1788 == 7.2 How to update firmware via UART port? ==
1789
1790
1791 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]]
1792
1793
1794 == 7.3 How to change the LoRa Frequency Bands/Region? ==
1795
1796
1797 You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
1798 When downloading the images, choose the required image file for download. ​
1799
1800
1801 == 7.4 Why is the data uploaded to the LoRaWAN platform node empty and fProt~=0? ==
1802
1803
1804 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.
1805
1806 Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1807
1808 [[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]]
1809
1810 Example:
1811
1812 [[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"]]
1813
1814 Please refer to the following command to fix DR
1815
1816 AT+ADR=0
1817
1818 AT+DR=3
1819
1820 Downlink command:
1821
1822 [[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]]
1823
1824
1825 = 8. ​Order Info =
1826
1827
1828 (((
1829 **Part Number: (% style="color:blue" %)SDI-12-LB-XX-YY(%%) or (% style="color:blue" %)SDI-12-LS-XX-YY(%%)**
1830 )))
1831
1832 (((
1833 (% style="color:blue" %)**XX**(%%): The default frequency band
1834 )))
1835
1836 (((
1837 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1838 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1839 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1840 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1841 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1842 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1843 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1844 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1845 )))
1846
1847 (% style="color:blue" %)**YY: **(%%)The grand connector hole size
1848
1849 * M12: M12 hole
1850 * M16: M16 hole
1851
1852 = 9. Packing Info =
1853
1854
1855 (% style="color:#037691" %)**Package Includes**:
1856
1857 * SDI-12-LB or SDI-12-LS SDI-12 to LoRaWAN Converter x 1
1858
1859 (% style="color:#037691" %)**Dimension and weight**:
1860
1861 * Device Size: cm
1862 * Device Weight: g
1863 * Package Size / pcs : cm
1864 * Weight / pcs : g
1865
1866 = 10. ​Support =
1867
1868
1869 * 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.
1870
1871 * 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]]