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Version 150.3 by Mengting Qiu on 2025/05/16 10:22
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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-20250516100849-1.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
690 AT+COMMAND2=0M!,2,1,0  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)
691
692
693
694
695 == 2.4 Uplink Payload ==
696
697 === 2.4.1 Device Payload, FPORT~=5 ===
698
699
700 Include device configure status. Once SDI-12-LB/LS Joined the network, it will uplink this message to the server.
701
702 Users can also use the downlink command(0x26 01) to ask SDI-12-LB/LS to resend this uplink.
703
704 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
705 |(% colspan="6" style="background-color:#4f81bd; color:white" %)**Device Status (FPORT=5)**
706 |(% 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**
707 |(% 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
708
709 Example parse in TTNv3
710
711 [[image:1675215946738-635.png||_mstalt="297778"]]
712
713
714 (% style="color:#037691" %)**Sensor Model**(%%): For SDI-12-LB/LS, this value is 0x17
715
716 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
717
718 (% style="color:#037691" %)**Frequency Band**:
719
720 0x01: EU868
721
722 0x02: US915
723
724 0x03: IN865
725
726 0x04: AU915
727
728 0x05: KZ865
729
730 0x06: RU864
731
732 0x07: AS923
733
734 0x08: AS923-1
735
736 0x09: AS923-2
737
738 0x0a: AS923-3
739
740 0x0b: CN470
741
742 0x0c: EU433
743
744 0x0d: KR920
745
746 0x0e: MA869
747
748
749 (% style="color:#037691" %)**Sub-Band**:
750
751 AU915 and US915:value 0x00 ~~ 0x08
752
753 CN470: value 0x0B ~~ 0x0C
754
755 Other Bands: Always 0x00
756
757
758 (% style="color:#037691" %)**Battery Info**:
759
760 Check the battery voltage.
761
762 Ex1: 0x0B45 = 2885mV
763
764 Ex2: 0x0B49 = 2889mV
765
766
767 === 2.4.2 Uplink Payload, FPORT~=2 ===
768
769
770 There are different cases for uplink. See below
771
772 * SDI-12 Debug Command return: FPORT=100
773
774 * Periodically Uplink: FPORT=2
775
776 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
777 |=(% style="width: 90px;background-color:#4F81BD;color:white" %)(((
778 **Size(bytes)**
779 )))|=(% 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**
780 |(% style="width:93px" %)Value|(% style="width:83px" %)(((
781 Battery(mV)
782 &
783 Interrupt_Flag
784 )))|(% style="width:91px" %)[[PAYLOAD_VER>>||anchor="H3.6Setthepayloadversion"]]|(% style="width:212px" %)(((
785 If the valid payload is too long and exceed the maximum support.
786 Payload length in server,server will show payload not provided in the LoRaWAN server.
787 )))
788
789 [[image:1675216282284-923.png||_mstalt="295633"]]
790
791
792 === 2.4.3 Battery Info ===
793
794
795 Check the battery voltage for SDI-12-LB/LS.
796
797 Ex1: 0x0B45 = 2885mV
798
799 Ex2: 0x0B49 = 2889mV
800
801
802 === 2.4.4 Interrupt Pin ===
803
804
805 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"]].
806
807 **Example:**
808
809 Ex1: 0x0B45:0x0B&0x80= 0x00    Normal uplink packet.
810
811 Ex2: 0x8B49:0x8B&0x80= 0x80    Interrupt Uplink Packet.
812
813
814 === 2.4.5 Payload version ===
815
816
817 The version number of the payload, mainly used for decoding. The default is 01.
818
819
820 === 2.4.6 ​Decode payload in The Things Network ===
821
822
823 While using TTN network, you can add the payload format to decode the payload.
824
825 [[image:1675216779406-595.png||_mstalt="298376"]]
826
827
828 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.
829
830 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
831
832
833 == 2.5 Uplink Interval ==
834
835
836 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:
837
838 [[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]]
839
840
841 == 2.6 Examples To Set SDI commands ==
842
843 === 2.6.1 Examples 1 ~-~- General Example ===
844
845
846 COM port and SDI-12 sensor communication converted to SDI-12-LB/LS and SDI-12 sensor communication.
847
848 [[image:image-20230222143809-1.png||_mstalt="429962" height="564" width="729"]]
849
850
851 (% style="color:blue" %)**1) The AT+COMMANDx command is applied to the red arrow part, and sends the SDI12 command to the SDI12 sensor:**
852
853 a. Send the first command and get the first reply：
854
855 (% style="color:#037691" %)**AT+COMMANDx=1I!,0,0,1**
856
857 b. Send the second command and get the second reply：
858
859 (% style="color:#037691" %)**AT+COMMANDx=2I!,0,0,1**
860
861 c. Send the third command and get the third reply：
862
863 (% style="color:#037691" %)**AT+COMMANDx=3I!,0,0,1**
864
865 d. Send the fourth command and get the fourth reply：
866
867 (% style="color:#037691" %)**AT+COMMANDx=4I!,0,0,1**
868
869 e. Send the fifth command plus the sixth command, get the sixth reply：
870
871 (% style="color:#037691" %)**AT+COMMANDx=1M!,2,1,1**
872
873 f. Send the seventh command plus the eighth command, get the eighth reply：
874
875 (% style="color:#037691" %)**AT+COMMANDx=2M!,2,1,1**
876
877 g. Send the ninth command plus the tenth command, get the tenth reply：
878
879 (% style="color:#037691" %)**AT+COMMANDx=3M!,1,1,1**
880
881 h. Send the eleventh command plus the twelfth command, get the twelfth reply：
882
883 (% style="color:#037691" %)**AT+COMMANDx=4M!,1,1,1**
884
885
886 (% style="color:blue" %)**2) The AT+DATACUTx command is applied to the green arrow part, receiving and cut out data from the SDI12 sensor:**
887
888 a. The first reply, all 34 characters: ”113TRUEBNERSMT100038220303182331<CR><LF>”
889
890 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=34,2,1~~34**(% style="color:#037691" %);
891
892 b. The sixth reply, all 31 characters: "1+19210+1.04+0.00+22.49+11.75<CR><LF>"
893
894 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
895
896 c. The eighth reply, all 31 characters: "2+18990+1.08+0.00+22.24+11.80<CR><LF>"
897
898 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
899
900 d. The tenth reply, all 15 characters: "3-2919.8+24.0<CR><LF>"
901
902 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=15,2,1~~15**(% style="color:#037691" %);
903
904 e. The twelfth reply, all 25 characters: "4+30.8+22.84+4.7+954.38<CR><LF>"
905
906 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"**.
907
908
909 === 2.6.2 Example 2 ~-~- Connect to Hygrovue10 ===
910
911 ==== 2.6.2.1 Reference Manual and Command ====
912
913
914 * [[Hygrovue10 Product Page>>https://www.campbellsci.com/hygrovue10]]
915
916 * Commands to be used in PC and output.
917
918 ~1. check device address
919
920 2. change device address
921
922 3. check device ID
923
924 4. start measure
925
926 5. Get Meausre result
927
928 [[image:image-20230603120209-2.png||height="281" width="267"]]
929
930
931 ==== 2.6.2.2 Hardware Connection to SDI-12-LB/LS ====
932
933
934 [[image:image-20230603120515-3.png]]
935
936
937 ==== 2.6.2.3 Commands set in SDI-12-LB/LS and uplink payload ====
938
939
940 [[image:image-20230603120648-4.png]]
941
942 [[image:image-20230603120726-5.png]]
943
944
945 **Data in TTN:**
946
947 [[image:image-20230603120859-6.png||height="118" width="1285"]]
948
949
950 === 2.6.3 Example 3 ~-~- Connect to SIL-400 ===
951
952 ==== 2.6.3.1 Reference Manual and Command ====
953
954
955 * [[SIL-400 Product Page>>https://www.apogeeinstruments.com/sil-411-commercial-grade-sdi-12-digital-output-standard-field-of-view-infrared-radiometer-sensor/]]
956
957 * Commands to be used in PC and output.
958
959 ~1. check device address
960
961 2. change device address
962
963 3. check device ID
964
965 4. start measure
966
967 5. Get Meausre result
968
969 [[image:image-20230603121606-7.png||height="242" width="307"]]
970
971
972 ==== 2.6.3.2 Hardware Connection to SDI-12-LB/LS ====
973
974
975 [[image:image-20230603121643-8.png||height="442" width="656"]]
976
977
978 ==== 2.6.3.3 Commands set in SDI-12-LB/LS and uplink payload ====
979
980
981 [[image:image-20230603121721-9.png]]
982
983 [[image:image-20230628090323-1.png||height="414" width="694"]]
984
985 Data in TTN:
986
987 [[image:image-20230603121826-11.png||height="155" width="1104"]]
988
989
990 === 2.6.4 Example 4 ~-~- Connect to TEROS-12 ===
991
992 ==== 2.6.4.1 Reference Manual and Command ====
993
994
995 * [[TEROS-12 Product Page>>https://www.metergroup.com/en/meter-environment/products/teros-12-soil-moisture-sensor]]
996
997 * Commands to be used in PC and output.
998
999 1.check device address
1000
1001 2.change device address
1002
1003 3.check device ID
1004
1005 4.start measure
1006
1007 5.Get Meausre result
1008
1009 [[image:image-20230603122248-16.png||height="196" width="198"]]
1010
1011
1012 ==== 2.6.4.2 Hardware Connection to SDI-12-LB/LS ====
1013
1014
1015 [[image:image-20230603122212-15.png||height="502" width="667"]]
1016
1017
1018 ==== 2.6.4.3 Commands set in SDI-12-LB/LS and uplink payload ====
1019
1020
1021 [[image:image-20230603122040-12.png]]
1022
1023 [[image:image-20230603122109-13.png||height="469" width="762"]]
1024
1025
1026 **Data in TTN:**
1027
1028 [[image:image-20230603122139-14.png||height="148" width="1128"]]
1029
1030
1031 === 2.6.5 Example 5 ~-~- Connect to SIL-400/TEROS-12 & Hygrovue10 ===
1032
1033 ==== 2.6.5.1 Important Notice! ====
1034
1035
1036 * The product page and reference command see above example 2,3,4
1037
1038 * 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.
1039
1040 * 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.
1041
1042 * If these SDI-12 sensors are powered by external power source. It will add 300uA in the total current in SDI-12-LB/LS.
1043
1044 ==== 2.6.5.2 Hardware Connection to SDI-12-LB/LS ====
1045
1046
1047 [[image:image-20230603122508-17.png||height="526" width="742"]]
1048
1049
1050 ==== 2.6.5.3 Commands set in SDI-12-LB/LS and uplink payload ====
1051
1052
1053 [[image:image-20230603122549-18.png]]
1054
1055 [[image:image-20230603122623-19.png||height="483" width="1121"]]
1056
1057
1058 **Data in TTN:**
1059
1060 [[image:image-20230603122719-20.png||height="151" width="1179"]]
1061
1062
1063 === 2.6.6 Example 6 ~-~- Connect to ENTELECHY-EP_SDI-12 ===
1064
1065 ==== 2.6.6.1 Reference Manual and Command ====
1066
1067
1068 * [[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]]
1069
1070 * Commands to be used in PC and output.
1071
1072 1.check device address
1073
1074 2.change device address
1075
1076 3.check device ID
1077
1078 4.start measure
1079
1080 5.Get Meausre result
1081
1082
1083 [[image:image-20230627174559-3.png]]
1084
1085
1086 ==== 2.6.6.2 Hardware Connection to SDI-12-LB/LS ====
1087
1088
1089 [[image:image-20230627174446-2.png]]
1090
1091
1092 ==== 2.6.6.3 Commands set in SDI-12-LB/LS and uplink payload ====
1093
1094
1095 [[image:image-20230627175513-4.png||height="596" width="576"]]
1096
1097 [[image:image-20230627175736-5.png||height="429" width="693"]]
1098
1099
1100 **Data in TTN:**
1101
1102 [[image:image-20230627180303-6.png||height="292" width="1171"]]
1103
1104
1105 === 2.6.7 Example 7 ~-~- Connect to GroPoint Profile-8 (SDI-12 Version) ===
1106
1107 ==== 2.6.7.1  Reference Manual and Command ====
1108
1109
1110 * [[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]]
1111
1112 * Commands to be used in PC and output.
1113
1114 1. check device address
1115 1. change device address
1116 1. check device ID
1117 1. start measure
1118 1. Get Meausre result
1119
1120 [[image:image-20240423143921-1.png]]
1121
1122
1123 ==== 2.6.7.2 Hardware Connection to SDI-12-LB/LS ====
1124
1125
1126 (% 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.)**
1127
1128 [[image:image-20240423145522-2.png||height="345" width="400"]]
1129
1130
1131 ==== 2.6.7.3 Commands set in SDI-12-LB/LS and uplink payload ====
1132
1133 [[image:image-20240423151202-3.png]]
1134
1135 (% class="wikigeneratedid" id="H" %)
1136 [[image:image-20240423162851-6.png||height="251" width="935"]]
1137
1138
1139 DATA in TTN:
1140
1141 [[image:image-20240423162322-4.png||height="269" width="933"]]
1142
1143
1144 === 2.6.8 Example 8 ~-~- Connect to Acclima TDR Soil Moisture Sensor ===
1145
1146 ==== 2.6.8.1  Reference Manual and Command ====
1147
1148
1149 * [[Acclima TDR Soil Moisture Sensor User Manual>>url:https://acclima.com/tdr-soil-moisture-sensor-user-manual/]]
1150
1151 * Commands to be used in PC and output.
1152
1153 1. check device address
1154 1. change device address
1155 1. check device ID
1156 1. start measure
1157 1. Get Meausre result
1158
1159 [[image:image-20240903152650-3.png]]
1160
1161 [[image:image-20240903152627-2.png]]
1162
1163
1164 ==== 2.6.8.2 Hardware Connection to SDI-12-LB/LS ====
1165
1166
1167 (% 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.)**
1168
1169 [[image:image-20240903153004-5.png||height="358" width="660"]]
1170
1171
1172 ==== 2.6.8.3 Commands set in SDI-12-LB/LS and uplink payload ====
1173
1174
1175 [[image:image-20240903153258-6.png]]
1176
1177 [[image:image-20240903153627-7.png]]
1178
1179 DATA in TTN:
1180
1181 [[image:image-20240903154020-10.png||height="467" width="961"]]
1182
1183
1184 == 2.7 Frequency Plans ==
1185
1186
1187 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.
1188
1189 [[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/]]
1190
1191
1192 == 2.8 Firmware Change Log ==
1193
1194
1195 **Firmware download link:**
1196
1197 [[https:~~/~~/www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0>>https://www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0]]
1198
1199
1200
1201 == 2.9 Datalog Feature(Since v1.3.0) ==
1202
1203
1204 (((
1205 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.
1206 )))
1207
1208
1209 === 2.9.1 Ways to get datalog via LoRaWAN ===
1210
1211
1212 There are two methods:
1213
1214 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.8.4Pollsensorvalue"]] for specified time range.
1215
1216
1217 (% 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.
1218
1219
1220 (% style="color:red" %)**Note for method 2:**
1221
1222 * a) SDI-12-LB will do an ACK check for data records sending to make sure every data arrive server.
1223 * 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.
1224
1225 === 2.9.2 Unix TimeStamp ===
1226
1227
1228 SDI-12-LB uses Unix TimeStamp format based on
1229
1230 [[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"]]
1231
1232
1233 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
1234
1235 Below is the converter example
1236
1237 [[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"]]
1238
1239 So, we can use AT+TIMESTAMP=1742889625 or downlink 3067E26299 to set the current time 2025 – March ~-~- 25 Tuesday  08:00:25
1240
1241
1242 === 2.9.3 Set Device Time ===
1243
1244
1245 (((
1246 (% style="color:blue" %)**There are two ways to set device's time:**
1247 )))
1248
1249 (((
1250 **1.  Through LoRaWAN MAC Command (Default settings)**
1251 )))
1252
1253 (((
1254 User need to set SYNCMOD=1 to enable sync time via MAC command.
1255 )))
1256
1257 (((
1258 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).
1259 )))
1260
1261 (((
1262 (% 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.**
1263 )))
1264
1265
1266 (((
1267 **2. Manually Set Time**
1268 )))
1269
1270 (((
1271 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
1272 )))
1273
1274
1275 === 2.9.4 Poll sensor value ===
1276
1277
1278 User can poll sensor value based on timestamps from the server. Below is the downlink command.
1279
1280 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:438.778px" %)
1281 |(% 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**
1282 |(% style="width:58px" %)31|(% style="width:123px" %)Timestamp start|(% style="width:114px" %)Timestamp end|(% style="width:137px" %)(((
1283 Uplink Interval(range 5~~255s)
1284 )))
1285
1286 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.
1287
1288 For example, downlink command (% _mstmutation="1" %)**31 68253B6E 68253E23 05**(%%)
1289
1290 Is to check 2025/05/15 00:55:10 to 2025/05/15 01:06:43's data
1291
1292 Uplink Internal =5s, means SDI-12-LB will send one packet every 5s.
1293
1294
1295 === 2.9.5 Datalog Uplink payload ===
1296
1297
1298 The Datalog poll reply uplink will use below payload format.
1299
1300 **Retrieval data payload:**
1301
1302 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:480px" %)
1303 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
1304 **Size(bytes)**
1305 )))|=(% 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**
1306 |(% style="width:97px" %)Value|(% style="width:104px" %)Unix Time Stamp|(% style="width:109px" %)Payload Length|(% style="width:165px" %)Data returned by the sensor
1307
1308 **Example:**
1309
1310 If SDI-12-LB has below data inside Flash:
1311
1312 (Soil sensors using the SDI-12 protocol are used for testing.)
1313
1314 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1315 |=(% 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**
1316 |(% style="width:89px" %)(((
1317 0001
1318 )))|(% style="width:98px" %)(((
1319 2025/3/25 08:09:30
1320 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1321 0c a8
1322 )))|(% style="width:92px" %)01|(% style="width:131px" %)(((
1323 08 21
1324 )))
1325 |(% style="width:89px" %)0002|(% style="width:98px" %)(((
1326 2025/3/25 08:10:30
1327 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1328 0c ae
1329 )))|(% style="width:92px" %)01|(% style="width:131px" %)(((
1330 08 22
1331 )))
1332 |(% style="width:89px" %)0003|(% style="width:98px" %)(((
1333 2025/3/25 08:11:30
1334 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1335 |(% style="width:89px" %)0004|(% style="width:98px" %)(((
1336 2025/3/25 08:12:30
1337 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1338 |(% style="width:89px" %)0005|(% style="width:98px" %)(((
1339 2025/3/25 08:13:30
1340 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1341 0c b4
1342 )))|(% style="width:92px" %)01|(% style="width:131px" %)08 23
1343 |(% style="width:89px" %)0006|(% style="width:98px" %)(((
1344 2025/3/25 08:14:30
1345 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1346 |(% style="width:89px" %)0007|(% style="width:98px" %)(((
1347 2025/3/25 08:15:30
1348 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c b4|(% style="width:92px" %)01|(% style="width:131px" %)08 23
1349 |(% style="width:89px" %)0008|(% style="width:98px" %)(((
1350 2025/3/25 08:16:30
1351 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1352
1353 If user sends below downlink command: (% style="background-color:yellow" %)3168253B6E68253E2305
1354
1355 Where : Start time: (% _mstmutation="1" %)68253B6E (%%)= time 2025/05/15 00:55:10
1356
1357 Stop time: (% _mstmutation="1" %)68253E23 (%%)= time 2025/05/15 01:06:43
1358
1359
1360 **SDI-12-LB will uplink this payload.**
1361
1362 **68253B6E 12 0C7801F10D302B312E31372B32362E390D0A **68253C5D120C7801F10D302B312E31372B32372E340D0A68253D33120C7201F10D302B312E31352B32382E390D0A68253DAB120C7201F10D302B312E31342B32392E340D0A68253E23120C7201F10D302B312E31332B33302E300D0A
1363
1364
1365 Where the first 23 bytes is for the first entry:
1366
1367 **68253B6E 12 0C7801F10D302B312E31372B32362E390D0A**
1368
1369 Unix Time Stamp: 68253B6E(H)=1747270510(D)  ~-~->  time=2025-05-15 8:55:00
1370
1371 Payload Length: 0x12(H)=18 bytes
1372
1373 Battery voltage: 0x0C78(H)=3192 mV
1374
1375 Payload Version:  01
1376
1377 Value: For the distance sensor used for testing, this value is the mm distance value, 0xF10D302B312E31372B32362E390D0A(H)
1378
1379
1380
1381 = 3. Configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink =
1382
1383
1384 Use can configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink.
1385
1386 * AT Command Connection: See [[FAQ>>||anchor="H7.FAQ"]].
1387 * LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
1388
1389 There are two kinds of commands to configure SDI-12-LB/LS, they are:
1390
1391 * (% style="color:blue" %)**General Commands**.
1392
1393 These commands are to configure:
1394
1395 * General system settings like: uplink interval.
1396 * LoRaWAN protocol & radio related command.
1397
1398 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
1399
1400 [[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/]]
1401
1402
1403 * (% style="color:blue" %)**Commands special design for SDI-12-LB/LS**
1404
1405 These commands only valid for SDI-12-LB/LS, as below:
1406
1407
1408 == 3.1 Set Transmit Interval Time ==
1409
1410
1411 Feature: Change LoRaWAN End Node Transmit Interval.
1412
1413 (% style="color:blue" %)**AT Command: AT+TDC**
1414
1415 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1416 |=(% 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**
1417 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=?|(% style="background-color:#f2f2f2; width:166px" %)Show current transmit Interval|(% style="background-color:#f2f2f2" %)(((
1418 30000
1419 OK
1420 the interval is 30000ms = 30s
1421 )))
1422 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=60000|(% style="background-color:#f2f2f2; width:166px" %)Set Transmit Interval|(% style="background-color:#f2f2f2" %)(((
1423 OK
1424 Set transmit interval to 60000ms = 60 seconds
1425 )))
1426
1427 (% style="color:blue" %)**Downlink Command: 0x01**
1428
1429 Format: Command Code (0x01) followed by 3 bytes time value.
1430
1431 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1432
1433 * Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1434 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
1435
1436 == 3.2 Set Interrupt Mode ==
1437
1438
1439 Feature, Set Interrupt mode for GPIO_EXIT.
1440
1441 (% style="color:blue" %)**AT Command: AT+INTMOD**
1442
1443 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1444 |=(% 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**
1445 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=?|(% style="background-color:#f2f2f2; width:196px" %)Show current interrupt mode|(% style="background-color:#f2f2f2; width:157px" %)(((
1446 0
1447 OK
1448 the mode is 0 =Disable Interrupt
1449 )))
1450 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=2|(% style="background-color:#f2f2f2; width:196px" %)(((
1451 Set Transmit Interval
1452 0. (Disable Interrupt),
1453 ~1. (Trigger by rising and falling edge)
1454 2. (Trigger by falling edge)
1455 3. (Trigger by rising edge)
1456 )))|(% style="background-color:#f2f2f2; width:157px" %)OK
1457
1458 (% style="color:blue" %)**Downlink Command: 0x06**
1459
1460 Format: Command Code (0x06) followed by 3 bytes.
1461
1462 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1463
1464 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
1465 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
1466
1467 == 3.3 Set the output time ==
1468
1469
1470 Feature, Control the output 3V3 , 5V or 12V.
1471
1472 (% style="color:blue" %)**AT Command: AT+3V3T**
1473
1474 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:474px" %)
1475 |=(% 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**
1476 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=?|(% style="background-color:#f2f2f2; width:201px" %)Show 3V3 open time.|(% style="background-color:#f2f2f2; width:116px" %)(((
1477 0
1478 OK
1479 )))
1480 |(% 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" %)(((
1481 OK
1482 default setting
1483 )))
1484 |(% 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" %)(((
1485 OK
1486 )))
1487 |(% 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" %)(((
1488 OK
1489 )))
1490
1491 (% style="color:blue" %)**AT Command: AT+5VT**
1492
1493 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:470px" %)
1494 |=(% 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**
1495 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=?|(% style="background-color:#f2f2f2; width:196px" %)Show 5V open time.|(% style="background-color:#f2f2f2; width:114px" %)(((
1496 0
1497 OK
1498 )))
1499 |(% 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" %)(((
1500 OK
1501 default setting
1502 )))
1503 |(% 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" %)(((
1504 OK
1505 )))
1506 |(% 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" %)(((
1507 OK
1508 )))
1509
1510 (% style="color:blue" %)**AT Command: AT+12VT **
1511
1512 (% style="color:blue" %)**(The v1.2 version is enabled for 1 second by default, and the version below v1.2 is disabled by default)**
1513
1514 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:443px" %)
1515 |=(% 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**
1516 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=?|(% style="background-color:#f2f2f2; width:199px" %)Show 12V open time.|(% style="background-color:#f2f2f2; width:83px" %)(((
1517 0
1518 OK
1519 )))
1520 |(% 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
1521 |(% 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" %)(((
1522 OK
1523 )))
1524
1525 (% style="color:blue" %)**Downlink Command: 0x07**
1526
1527 Format: Command Code (0x07) followed by 3 bytes.
1528
1529 The first byte is which power, the second and third bytes are the time to turn on.
1530
1531 * Example 1: Downlink Payload: 070101F4  **~-~-->**  AT+3V3T=500
1532 * Example 2: Downlink Payload: 0701FFFF   **~-~-->**  AT+3V3T=65535
1533 * Example 3: Downlink Payload: 070203E8  **~-~-->**  AT+5VT=1000
1534 * Example 4: Downlink Payload: 07020000  **~-~-->**  AT+5VT=0
1535 * Example 5: Downlink Payload: 070301F4  **~-~-->**  AT+12VT=500
1536 * Example 6: Downlink Payload: 07030000  **~-~-->**  AT+12VT=0
1537
1538 == 3.4 Set the all data mode ==
1539
1540
1541 Feature, Set the all data mode.
1542
1543 (% style="color:blue" %)**AT Command: AT+ALLDATAMOD**
1544
1545 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1546 |=(% style="background-color:#4F81BD;color:white" %)**Command Example**|=(% style="background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1547 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=?|(% style="background-color:#f2f2f2" %)Show current all data mode|(% style="background-color:#f2f2f2" %)(((
1548 0
1549 OK
1550 )))
1551 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=1|(% style="background-color:#f2f2f2" %)Set all data mode is 1.|(% style="background-color:#f2f2f2" %)OK
1552
1553 (% style="color:blue" %)**Downlink Command: 0xAB**
1554
1555 Format: Command Code (0xAB) followed by 1 bytes.
1556
1557 * Example 1: Downlink Payload: AB 00  ~/~/  AT+ALLDATAMOD=0
1558 * Example 2: Downlink Payload: AB 01  ~/~/  AT+ALLDATAMOD=1
1559
1560 == 3.5 Set the splicing payload for uplink ==
1561
1562
1563 Feature, splicing payload for uplink.
1564
1565 (% style="color:blue" %)**AT Command: AT+DATAUP**
1566
1567 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1568 |=(% 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**
1569 |(% 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" %)(((
1570 0
1571 OK
1572 )))
1573 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =0|(% style="background-color:#f2f2f2; width:266px" %)(((
1574 Set splicing payload for uplink mode is 0.
1575 )))|(% style="background-color:#f2f2f2" %)(((
1576 OK
1577 )))
1578 |(% 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
1579 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =1,20000|(% style="background-color:#f2f2f2; width:266px" %)(((
1580 Set splicing payload for uplink mode is 1, and the uplink interval of each splice to 20000 milliseconds.
1581 )))|(% style="background-color:#f2f2f2" %)OK
1582
1583 (% style="color:blue" %)**Downlink Command: 0xAD**
1584
1585 Format: Command Code (0xAD) followed by 1 bytes or 5 bytes.
1586
1587 * Example 1: Downlink Payload: AD 00  ~/~/  AT+DATAUP=0
1588 * Example 2: Downlink Payload: AD 01  ~/~/  AT+DATAUP =1
1589 * Example 3: Downlink Payload: AD 01 00 00 14  ~/~/  AT+DATAUP =1,20000
1590
1591 This means that the interval is set to 0x000014=20S
1592
1593
1594 == 3.6 Set the payload version ==
1595
1596
1597 Feature, Set the payload version.
1598
1599 (% style="color:blue" %)**AT Command: AT+PAYVER**
1600
1601 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1602 |=(% 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**
1603 |(% style="background-color:#f2f2f2; width:158px" %)AT+PAYVER=?|(% style="background-color:#f2f2f2; width:192px" %)Show current payload version|(% style="background-color:#f2f2f2" %)(((
1604 1
1605 OK
1606 )))
1607 |(% 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
1608
1609 (% style="color:blue" %)**Downlink Command: 0xAE**
1610
1611 Format: Command Code (0xAE) followed by 1 bytes.
1612
1613 * Example 1: Downlink Payload: AE 01  ~/~/  AT+PAYVER=1
1614 * Example 2: Downlink Payload: AE 05  ~/~/  AT+PAYVER=5
1615
1616 === 3.7 Print data entries base on page(Since v1.3.0) ===
1617
1618
1619 Feature: Print the sector data from start page to stop page (max is 416 pages).
1620
1621 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1622
1623 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1624 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1625 |(% style="width:156px" %)(((
1626 AT+PDTA=1,2
1627 Print page 1 to 2
1628 )))|(% style="width:311px" %)(((
1629 Stop Tx and RTP events when read sensor data
1630
1631 8033330 2025/5/14 12:27:32 18 0c 84 01 f1 0d 30 2b 31 2e 30
1632
1633 8033340 38 2b 32 34 2e 36 0d 0a
1634
1635 8033350 2025/5/14 12:29:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1636
1637 8033360 38 2b 32 34 2e 36 0d 0a
1638
1639 8033370 2025/5/14 12:31:32 18 0c 78 01 f1 0d 30 2b 31 2e 30
1640
1641 8033380 38 2b 32 34 2e 36 0d 0a
1642
1643 8033390 2025/5/14 12:33:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1644
1645 80333A0 38 2b 32 34 2e 36 0d 0a
1646
1647 80333B0 2025/5/14 12:35:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1648
1649 80333C0 38 2b 32 34 2e 36 0d 0a
1650
1651
1652 OK
1653 )))
1654
1655 (% style="color:#4f81bd" %)**Downlink Command:**
1656
1657 No downlink commands for feature
1658
1659
1660 === 3.8 Print last few data entries(Since v1.3.0) ===
1661
1662
1663 Feature: Print the last few data entries
1664
1665 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1666
1667 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1668 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1669 |(% style="width:156px" %)(((
1670 AT+PLDTA=10
1671 Print last 10 entries
1672 )))|(% style="width:311px" %)(((
1673 Stop Tx events when read sensor data
1674
1675 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
1676
1677 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
1678
1679 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
1680
1681 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
1682
1683 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
1684
1685 Start Tx events
1686
1687 OK
1688 )))
1689
1690 (% style="color:#4f81bd" %)**Downlink Command:**
1691
1692 No downlink commands for feature
1693
1694
1695 === 3.9 Clear Flash Record(Since v1.3.0) ===
1696
1697
1698 Feature: Clear flash storage for data log feature.
1699
1700 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1701
1702 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1703 |(% 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**
1704 |(% style="width:155px" %)AT+CLRDTA |(% style="width:134px" %)Clear date record|(% style="width:209px" %)(((
1705 Clear all stored sensor data…
1706
1707 OK
1708 )))
1709
1710 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1711
1712 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1713
1714
1715
1716 == 3.10 SDI12 timing(Since v1.3.0) ==
1717
1718
1719 Feature: Get or set the time of SDI12 timing.
1720
1721 [[image:1747289896656-580.png||height="414" width="566"]]
1722
1723 (% style="color:#4f81bd" %)**AT Command: AT+SDITIMING**
1724
1725 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1726 |(% 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**
1727 |(% style="width:155px" %)(((
1728 AT+SDITIMING=13,9
1729
1730
1731 )))|(% style="width:167px" %)Get or set the time of SDI12 timing|(% style="width:177px" %)(((
1732 OK
1733
1734 Default: 13,9
1735 )))
1736
1737 (% style="color:#4f81bd" %)**Downlink Command: 0xA9**
1738
1739 * Example: 0xA90D09  ~/~/  Same as AT+SDITIMING=13,9
1740
1741 = 4. Battery & Power Consumption =
1742
1743
1744 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.
1745
1746 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
1747
1748
1749 = 5. Remote Configure device =
1750
1751 == 5.1 Connect via BLE ==
1752
1753
1754 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/]]
1755
1756
1757 == 5.2 AT Command Set ==
1758
1759
1760
1761 = 6. OTA firmware update =
1762
1763
1764 Please see this link for how to do OTA firmware update.
1765
1766 [[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/]]
1767
1768
1769 = 7. FAQ =
1770
1771 == 7.1 How to use AT Command  via UART to access device? ==
1772
1773
1774 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]]
1775
1776
1777 == 7.2 How to update firmware via UART port? ==
1778
1779
1780 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]]
1781
1782
1783 == 7.3 How to change the LoRa Frequency Bands/Region? ==
1784
1785
1786 You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
1787 When downloading the images, choose the required image file for download. ​
1788
1789
1790 == 7.4 Why is the data uploaded to the LoRaWAN platform node empty and fProt~=0? ==
1791
1792
1793 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.
1794
1795 Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1796
1797 [[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]]
1798
1799 Example:
1800
1801 [[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"]]
1802
1803 Please refer to the following command to fix DR
1804
1805 AT+ADR=0
1806
1807 AT+DR=3
1808
1809 Downlink command:
1810
1811 [[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]]
1812
1813
1814 = 8. ​Order Info =
1815
1816
1817 (((
1818 **Part Number: (% style="color:blue" %)SDI-12-LB-XX-YY(%%) or (% style="color:blue" %)SDI-12-LS-XX-YY(%%)**
1819 )))
1820
1821 (((
1822 (% style="color:blue" %)**XX**(%%): The default frequency band
1823 )))
1824
1825 (((
1826 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1827 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1828 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1829 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1830 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1831 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1832 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1833 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1834 )))
1835
1836 (% style="color:blue" %)**YY: **(%%)The grand connector hole size
1837
1838 * M12: M12 hole
1839 * M16: M16 hole
1840
1841 = 9. Packing Info =
1842
1843
1844 (% style="color:#037691" %)**Package Includes**:
1845
1846 * SDI-12-LB or SDI-12-LS SDI-12 to LoRaWAN Converter x 1
1847
1848 (% style="color:#037691" %)**Dimension and weight**:
1849
1850 * Device Size: cm
1851 * Device Weight: g
1852 * Package Size / pcs : cm
1853 * Weight / pcs : g
1854
1855 = 10. ​Support =
1856
1857
1858 * 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.
1859
1860 * 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]]