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Version 149.3 by Mengting Qiu on 2025/05/16 09:55
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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
682 == 2.4 Uplink Payload ==
683
684 === 2.4.1 Device Payload, FPORT~=5 ===
685
686
687 Include device configure status. Once SDI-12-LB/LS Joined the network, it will uplink this message to the server.
688
689 Users can also use the downlink command(0x26 01) to ask SDI-12-LB/LS to resend this uplink.
690
691 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
692 |(% colspan="6" style="background-color:#4f81bd; color:white" %)**Device Status (FPORT=5)**
693 |(% 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**
694 |(% 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
695
696 Example parse in TTNv3
697
698 [[image:1675215946738-635.png||_mstalt="297778"]]
699
700
701 (% style="color:#037691" %)**Sensor Model**(%%): For SDI-12-LB/LS, this value is 0x17
702
703 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
704
705 (% style="color:#037691" %)**Frequency Band**:
706
707 0x01: EU868
708
709 0x02: US915
710
711 0x03: IN865
712
713 0x04: AU915
714
715 0x05: KZ865
716
717 0x06: RU864
718
719 0x07: AS923
720
721 0x08: AS923-1
722
723 0x09: AS923-2
724
725 0x0a: AS923-3
726
727 0x0b: CN470
728
729 0x0c: EU433
730
731 0x0d: KR920
732
733 0x0e: MA869
734
735
736 (% style="color:#037691" %)**Sub-Band**:
737
738 AU915 and US915:value 0x00 ~~ 0x08
739
740 CN470: value 0x0B ~~ 0x0C
741
742 Other Bands: Always 0x00
743
744
745 (% style="color:#037691" %)**Battery Info**:
746
747 Check the battery voltage.
748
749 Ex1: 0x0B45 = 2885mV
750
751 Ex2: 0x0B49 = 2889mV
752
753
754 === 2.4.2 Uplink Payload, FPORT~=2 ===
755
756
757 There are different cases for uplink. See below
758
759 * SDI-12 Debug Command return: FPORT=100
760
761 * Periodically Uplink: FPORT=2
762
763 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
764 |=(% style="width: 90px;background-color:#4F81BD;color:white" %)(((
765 **Size(bytes)**
766 )))|=(% 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**
767 |(% style="width:93px" %)Value|(% style="width:83px" %)(((
768 Battery(mV)
769 &
770 Interrupt_Flag
771 )))|(% style="width:91px" %)[[PAYLOAD_VER>>||anchor="H3.6Setthepayloadversion"]]|(% style="width:212px" %)(((
772 If the valid payload is too long and exceed the maximum support.
773 Payload length in server,server will show payload not provided in the LoRaWAN server.
774 )))
775
776 [[image:1675216282284-923.png||_mstalt="295633"]]
777
778
779 === 2.4.3 Battery Info ===
780
781
782 Check the battery voltage for SDI-12-LB/LS.
783
784 Ex1: 0x0B45 = 2885mV
785
786 Ex2: 0x0B49 = 2889mV
787
788
789 === 2.4.4 Interrupt Pin ===
790
791
792 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"]].
793
794 **Example:**
795
796 Ex1: 0x0B45:0x0B&0x80= 0x00    Normal uplink packet.
797
798 Ex2: 0x8B49:0x8B&0x80= 0x80    Interrupt Uplink Packet.
799
800
801 === 2.4.5 Payload version ===
802
803
804 The version number of the payload, mainly used for decoding. The default is 01.
805
806
807 === 2.4.6 ​Decode payload in The Things Network ===
808
809
810 While using TTN network, you can add the payload format to decode the payload.
811
812 [[image:1675216779406-595.png||_mstalt="298376"]]
813
814
815 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.
816
817 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
818
819
820 == 2.5 Uplink Interval ==
821
822
823 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:
824
825 [[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]]
826
827
828 == 2.6 Examples To Set SDI commands ==
829
830 === 2.6.1 Examples 1 ~-~- General Example ===
831
832
833 COM port and SDI-12 sensor communication converted to SDI-12-LB/LS and SDI-12 sensor communication.
834
835 [[image:image-20230222143809-1.png||_mstalt="429962" height="564" width="729"]]
836
837
838 (% style="color:blue" %)**1) The AT+COMMANDx command is applied to the red arrow part, and sends the SDI12 command to the SDI12 sensor:**
839
840 a. Send the first command and get the first reply：
841
842 (% style="color:#037691" %)**AT+COMMANDx=1I!,0,0,1**
843
844 b. Send the second command and get the second reply：
845
846 (% style="color:#037691" %)**AT+COMMANDx=2I!,0,0,1**
847
848 c. Send the third command and get the third reply：
849
850 (% style="color:#037691" %)**AT+COMMANDx=3I!,0,0,1**
851
852 d. Send the fourth command and get the fourth reply：
853
854 (% style="color:#037691" %)**AT+COMMANDx=4I!,0,0,1**
855
856 e. Send the fifth command plus the sixth command, get the sixth reply：
857
858 (% style="color:#037691" %)**AT+COMMANDx=1M!,2,1,1**
859
860 f. Send the seventh command plus the eighth command, get the eighth reply：
861
862 (% style="color:#037691" %)**AT+COMMANDx=2M!,2,1,1**
863
864 g. Send the ninth command plus the tenth command, get the tenth reply：
865
866 (% style="color:#037691" %)**AT+COMMANDx=3M!,1,1,1**
867
868 h. Send the eleventh command plus the twelfth command, get the twelfth reply：
869
870 (% style="color:#037691" %)**AT+COMMANDx=4M!,1,1,1**
871
872
873 (% style="color:blue" %)**2) The AT+DATACUTx command is applied to the green arrow part, receiving and cut out data from the SDI12 sensor:**
874
875 a. The first reply, all 34 characters: ”113TRUEBNERSMT100038220303182331<CR><LF>”
876
877 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=34,2,1~~34**(% style="color:#037691" %);
878
879 b. The sixth reply, all 31 characters: "1+19210+1.04+0.00+22.49+11.75<CR><LF>"
880
881 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
882
883 c. The eighth reply, all 31 characters: "2+18990+1.08+0.00+22.24+11.80<CR><LF>"
884
885 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
886
887 d. The tenth reply, all 15 characters: "3-2919.8+24.0<CR><LF>"
888
889 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=15,2,1~~15**(% style="color:#037691" %);
890
891 e. The twelfth reply, all 25 characters: "4+30.8+22.84+4.7+954.38<CR><LF>"
892
893 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"**.
894
895
896 === 2.6.2 Example 2 ~-~- Connect to Hygrovue10 ===
897
898 ==== 2.6.2.1 Reference Manual and Command ====
899
900
901 * [[Hygrovue10 Product Page>>https://www.campbellsci.com/hygrovue10]]
902
903 * Commands to be used in PC and output.
904
905 ~1. check device address
906
907 2. change device address
908
909 3. check device ID
910
911 4. start measure
912
913 5. Get Meausre result
914
915 [[image:image-20230603120209-2.png||height="281" width="267"]]
916
917
918 ==== 2.6.2.2 Hardware Connection to SDI-12-LB/LS ====
919
920
921 [[image:image-20230603120515-3.png]]
922
923
924 ==== 2.6.2.3 Commands set in SDI-12-LB/LS and uplink payload ====
925
926
927 [[image:image-20230603120648-4.png]]
928
929 [[image:image-20230603120726-5.png]]
930
931
932 **Data in TTN:**
933
934 [[image:image-20230603120859-6.png||height="118" width="1285"]]
935
936
937 === 2.6.3 Example 3 ~-~- Connect to SIL-400 ===
938
939 ==== 2.6.3.1 Reference Manual and Command ====
940
941
942 * [[SIL-400 Product Page>>https://www.apogeeinstruments.com/sil-411-commercial-grade-sdi-12-digital-output-standard-field-of-view-infrared-radiometer-sensor/]]
943
944 * Commands to be used in PC and output.
945
946 ~1. check device address
947
948 2. change device address
949
950 3. check device ID
951
952 4. start measure
953
954 5. Get Meausre result
955
956 [[image:image-20230603121606-7.png||height="242" width="307"]]
957
958
959 ==== 2.6.3.2 Hardware Connection to SDI-12-LB/LS ====
960
961
962 [[image:image-20230603121643-8.png||height="442" width="656"]]
963
964
965 ==== 2.6.3.3 Commands set in SDI-12-LB/LS and uplink payload ====
966
967
968 [[image:image-20230603121721-9.png]]
969
970 [[image:image-20230628090323-1.png||height="414" width="694"]]
971
972 Data in TTN:
973
974 [[image:image-20230603121826-11.png||height="155" width="1104"]]
975
976
977 === 2.6.4 Example 4 ~-~- Connect to TEROS-12 ===
978
979 ==== 2.6.4.1 Reference Manual and Command ====
980
981
982 * [[TEROS-12 Product Page>>https://www.metergroup.com/en/meter-environment/products/teros-12-soil-moisture-sensor]]
983
984 * Commands to be used in PC and output.
985
986 1.check device address
987
988 2.change device address
989
990 3.check device ID
991
992 4.start measure
993
994 5.Get Meausre result
995
996 [[image:image-20230603122248-16.png||height="196" width="198"]]
997
998
999 ==== 2.6.4.2 Hardware Connection to SDI-12-LB/LS ====
1000
1001
1002 [[image:image-20230603122212-15.png||height="502" width="667"]]
1003
1004
1005 ==== 2.6.4.3 Commands set in SDI-12-LB/LS and uplink payload ====
1006
1007
1008 [[image:image-20230603122040-12.png]]
1009
1010 [[image:image-20230603122109-13.png||height="469" width="762"]]
1011
1012
1013 **Data in TTN:**
1014
1015 [[image:image-20230603122139-14.png||height="148" width="1128"]]
1016
1017
1018 === 2.6.5 Example 5 ~-~- Connect to SIL-400/TEROS-12 & Hygrovue10 ===
1019
1020 ==== 2.6.5.1 Important Notice! ====
1021
1022
1023 * The product page and reference command see above example 2,3,4
1024
1025 * 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.
1026
1027 * 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.
1028
1029 * If these SDI-12 sensors are powered by external power source. It will add 300uA in the total current in SDI-12-LB/LS.
1030
1031 ==== 2.6.5.2 Hardware Connection to SDI-12-LB/LS ====
1032
1033
1034 [[image:image-20230603122508-17.png||height="526" width="742"]]
1035
1036
1037 ==== 2.6.5.3 Commands set in SDI-12-LB/LS and uplink payload ====
1038
1039
1040 [[image:image-20230603122549-18.png]]
1041
1042 [[image:image-20230603122623-19.png||height="483" width="1121"]]
1043
1044
1045 **Data in TTN:**
1046
1047 [[image:image-20230603122719-20.png||height="151" width="1179"]]
1048
1049
1050 === 2.6.6 Example 6 ~-~- Connect to ENTELECHY-EP_SDI-12 ===
1051
1052 ==== 2.6.6.1 Reference Manual and Command ====
1053
1054
1055 * [[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]]
1056
1057 * Commands to be used in PC and output.
1058
1059 1.check device address
1060
1061 2.change device address
1062
1063 3.check device ID
1064
1065 4.start measure
1066
1067 5.Get Meausre result
1068
1069
1070 [[image:image-20230627174559-3.png]]
1071
1072
1073 ==== 2.6.6.2 Hardware Connection to SDI-12-LB/LS ====
1074
1075
1076 [[image:image-20230627174446-2.png]]
1077
1078
1079 ==== 2.6.6.3 Commands set in SDI-12-LB/LS and uplink payload ====
1080
1081
1082 [[image:image-20230627175513-4.png||height="596" width="576"]]
1083
1084 [[image:image-20230627175736-5.png||height="429" width="693"]]
1085
1086
1087 **Data in TTN:**
1088
1089 [[image:image-20230627180303-6.png||height="292" width="1171"]]
1090
1091
1092 === 2.6.7 Example 7 ~-~- Connect to GroPoint Profile-8 (SDI-12 Version) ===
1093
1094 ==== 2.6.7.1  Reference Manual and Command ====
1095
1096
1097 * [[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]]
1098
1099 * Commands to be used in PC and output.
1100
1101 1. check device address
1102 1. change device address
1103 1. check device ID
1104 1. start measure
1105 1. Get Meausre result
1106
1107 [[image:image-20240423143921-1.png]]
1108
1109
1110 ==== 2.6.7.2 Hardware Connection to SDI-12-LB/LS ====
1111
1112
1113 (% 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.)**
1114
1115 [[image:image-20240423145522-2.png||height="345" width="400"]]
1116
1117
1118 ==== 2.6.7.3 Commands set in SDI-12-LB/LS and uplink payload ====
1119
1120 [[image:image-20240423151202-3.png]]
1121
1122 (% class="wikigeneratedid" id="H" %)
1123 [[image:image-20240423162851-6.png||height="251" width="935"]]
1124
1125
1126 DATA in TTN:
1127
1128 [[image:image-20240423162322-4.png||height="269" width="933"]]
1129
1130
1131 === 2.6.8 Example 8 ~-~- Connect to Acclima TDR Soil Moisture Sensor ===
1132
1133 ==== 2.6.8.1  Reference Manual and Command ====
1134
1135
1136 * [[Acclima TDR Soil Moisture Sensor User Manual>>url:https://acclima.com/tdr-soil-moisture-sensor-user-manual/]]
1137
1138 * Commands to be used in PC and output.
1139
1140 1. check device address
1141 1. change device address
1142 1. check device ID
1143 1. start measure
1144 1. Get Meausre result
1145
1146 [[image:image-20240903152650-3.png]]
1147
1148 [[image:image-20240903152627-2.png]]
1149
1150
1151 ==== 2.6.8.2 Hardware Connection to SDI-12-LB/LS ====
1152
1153
1154 (% 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.)**
1155
1156 [[image:image-20240903153004-5.png||height="358" width="660"]]
1157
1158
1159 ==== 2.6.8.3 Commands set in SDI-12-LB/LS and uplink payload ====
1160
1161
1162 [[image:image-20240903153258-6.png]]
1163
1164 [[image:image-20240903153627-7.png]]
1165
1166 DATA in TTN:
1167
1168 [[image:image-20240903154020-10.png||height="467" width="961"]]
1169
1170
1171 == 2.7 Frequency Plans ==
1172
1173
1174 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.
1175
1176 [[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/]]
1177
1178
1179 == 2.8 Firmware Change Log ==
1180
1181
1182 **Firmware download link:**
1183
1184 [[https:~~/~~/www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0>>https://www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0]]
1185
1186
1187
1188 == 2.9 Datalog Feature(Since v1.3.0) ==
1189
1190
1191 (((
1192 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.
1193 )))
1194
1195
1196 === 2.9.1 Ways to get datalog via LoRaWAN ===
1197
1198
1199 There are two methods:
1200
1201 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.8.4Pollsensorvalue"]] for specified time range.
1202
1203
1204 (% 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.
1205
1206
1207 (% style="color:red" %)**Note for method 2:**
1208
1209 * a) SDI-12-LB will do an ACK check for data records sending to make sure every data arrive server.
1210 * 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.
1211
1212 === 2.9.2 Unix TimeStamp ===
1213
1214
1215 SDI-12-LB uses Unix TimeStamp format based on
1216
1217 [[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"]]
1218
1219
1220 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
1221
1222 Below is the converter example
1223
1224 [[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"]]
1225
1226 So, we can use AT+TIMESTAMP=1742889625 or downlink 3067E26299 to set the current time 2025 – March ~-~- 25 Tuesday  08:00:25
1227
1228
1229 === 2.9.3 Set Device Time ===
1230
1231
1232 (((
1233 (% style="color:blue" %)**There are two ways to set device's time:**
1234 )))
1235
1236 (((
1237 **1.  Through LoRaWAN MAC Command (Default settings)**
1238 )))
1239
1240 (((
1241 User need to set SYNCMOD=1 to enable sync time via MAC command.
1242 )))
1243
1244 (((
1245 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).
1246 )))
1247
1248 (((
1249 (% 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.**
1250 )))
1251
1252
1253 (((
1254 **2. Manually Set Time**
1255 )))
1256
1257 (((
1258 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
1259 )))
1260
1261
1262 === 2.9.4 Poll sensor value ===
1263
1264
1265 User can poll sensor value based on timestamps from the server. Below is the downlink command.
1266
1267 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:438.778px" %)
1268 |(% 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**
1269 |(% style="width:58px" %)31|(% style="width:123px" %)Timestamp start|(% style="width:114px" %)Timestamp end|(% style="width:137px" %)(((
1270 Uplink Interval(range 5~~255s)
1271 )))
1272
1273 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.
1274
1275 For example, downlink command (% _mstmutation="1" %)**31 68253B6E 68253E23 05**(%%)
1276
1277 Is to check 2025/05/15 00:55:10 to 2025/05/15 01:06:43's data
1278
1279 Uplink Internal =5s, means SDI-12-LB will send one packet every 5s.
1280
1281
1282 === 2.9.5 Datalog Uplink payload ===
1283
1284
1285 The Datalog poll reply uplink will use below payload format.
1286
1287 **Retrieval data payload:**
1288
1289 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:480px" %)
1290 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
1291 **Size(bytes)**
1292 )))|=(% 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**
1293 |(% style="width:97px" %)Value|(% style="width:104px" %)Unix Time Stamp|(% style="width:109px" %)Payload Length|(% style="width:165px" %)Data returned by the sensor
1294
1295 **Example:**
1296
1297 If SDI-12-LB has below data inside Flash:
1298
1299 (Soil sensors using the SDI-12 protocol are used for testing.)
1300
1301 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1302 |=(% 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**
1303 |(% style="width:89px" %)(((
1304 0001
1305 )))|(% style="width:98px" %)(((
1306 2025/3/25 08:09:30
1307 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1308 0c a8
1309 )))|(% style="width:92px" %)01|(% style="width:131px" %)(((
1310 08 21
1311 )))
1312 |(% style="width:89px" %)0002|(% style="width:98px" %)(((
1313 2025/3/25 08:10:30
1314 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1315 0c ae
1316 )))|(% style="width:92px" %)01|(% style="width:131px" %)(((
1317 08 22
1318 )))
1319 |(% style="width:89px" %)0003|(% style="width:98px" %)(((
1320 2025/3/25 08:11:30
1321 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1322 |(% style="width:89px" %)0004|(% style="width:98px" %)(((
1323 2025/3/25 08:12:30
1324 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1325 |(% style="width:89px" %)0005|(% style="width:98px" %)(((
1326 2025/3/25 08:13:30
1327 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1328 0c b4
1329 )))|(% style="width:92px" %)01|(% style="width:131px" %)08 23
1330 |(% style="width:89px" %)0006|(% style="width:98px" %)(((
1331 2025/3/25 08:14:30
1332 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1333 |(% style="width:89px" %)0007|(% style="width:98px" %)(((
1334 2025/3/25 08:15:30
1335 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c b4|(% style="width:92px" %)01|(% style="width:131px" %)08 23
1336 |(% style="width:89px" %)0008|(% style="width:98px" %)(((
1337 2025/3/25 08:16:30
1338 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1339
1340 If user sends below downlink command: (% style="background-color:yellow" %)3168253B6E68253E2305
1341
1342 Where : Start time: (% _mstmutation="1" %)68253B6E (%%)= time 2025/05/15 00:55:10
1343
1344 Stop time: (% _mstmutation="1" %)68253E23 (%%)= time 2025/05/15 01:06:43
1345
1346
1347 **SDI-12-LB will uplink this payload.**
1348
1349 **68253B6E 12 0C7801F10D302B312E31372B32362E390D0A **68253C5D120C7801F10D302B312E31372B32372E340D0A68253D33120C7201F10D302B312E31352B32382E390D0A68253DAB120C7201F10D302B312E31342B32392E340D0A68253E23120C7201F10D302B312E31332B33302E300D0A
1350
1351
1352 Where the first 23 bytes is for the first entry:
1353
1354 **68253B6E 12 0C7801F10D302B312E31372B32362E390D0A**
1355
1356 Unix Time Stamp: 68253B6E(H)=1747270510(D)  ~-~->  time=2025-05-15 8:55:00
1357
1358 Payload Length: 0x12(H)=18 bytes
1359
1360 Battery voltage: 0x0C78(H)=3192 mV
1361
1362 Payload Version:  01
1363
1364 Value: For the distance sensor used for testing, this value is the mm distance value, 0xF10D302B312E31372B32362E390D0A(H)
1365
1366
1367
1368 = 3. Configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink =
1369
1370
1371 Use can configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink.
1372
1373 * AT Command Connection: See [[FAQ>>||anchor="H7.FAQ"]].
1374 * LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
1375
1376 There are two kinds of commands to configure SDI-12-LB/LS, they are:
1377
1378 * (% style="color:blue" %)**General Commands**.
1379
1380 These commands are to configure:
1381
1382 * General system settings like: uplink interval.
1383 * LoRaWAN protocol & radio related command.
1384
1385 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
1386
1387 [[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/]]
1388
1389
1390 * (% style="color:blue" %)**Commands special design for SDI-12-LB/LS**
1391
1392 These commands only valid for SDI-12-LB/LS, as below:
1393
1394
1395 == 3.1 Set Transmit Interval Time ==
1396
1397
1398 Feature: Change LoRaWAN End Node Transmit Interval.
1399
1400 (% style="color:blue" %)**AT Command: AT+TDC**
1401
1402 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1403 |=(% 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**
1404 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=?|(% style="background-color:#f2f2f2; width:166px" %)Show current transmit Interval|(% style="background-color:#f2f2f2" %)(((
1405 30000
1406 OK
1407 the interval is 30000ms = 30s
1408 )))
1409 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=60000|(% style="background-color:#f2f2f2; width:166px" %)Set Transmit Interval|(% style="background-color:#f2f2f2" %)(((
1410 OK
1411 Set transmit interval to 60000ms = 60 seconds
1412 )))
1413
1414 (% style="color:blue" %)**Downlink Command: 0x01**
1415
1416 Format: Command Code (0x01) followed by 3 bytes time value.
1417
1418 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1419
1420 * Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1421 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
1422
1423 == 3.2 Set Interrupt Mode ==
1424
1425
1426 Feature, Set Interrupt mode for GPIO_EXIT.
1427
1428 (% style="color:blue" %)**AT Command: AT+INTMOD**
1429
1430 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1431 |=(% 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**
1432 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=?|(% style="background-color:#f2f2f2; width:196px" %)Show current interrupt mode|(% style="background-color:#f2f2f2; width:157px" %)(((
1433 0
1434 OK
1435 the mode is 0 =Disable Interrupt
1436 )))
1437 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=2|(% style="background-color:#f2f2f2; width:196px" %)(((
1438 Set Transmit Interval
1439 0. (Disable Interrupt),
1440 ~1. (Trigger by rising and falling edge)
1441 2. (Trigger by falling edge)
1442 3. (Trigger by rising edge)
1443 )))|(% style="background-color:#f2f2f2; width:157px" %)OK
1444
1445 (% style="color:blue" %)**Downlink Command: 0x06**
1446
1447 Format: Command Code (0x06) followed by 3 bytes.
1448
1449 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1450
1451 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
1452 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
1453
1454 == 3.3 Set the output time ==
1455
1456
1457 Feature, Control the output 3V3 , 5V or 12V.
1458
1459 (% style="color:blue" %)**AT Command: AT+3V3T**
1460
1461 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:474px" %)
1462 |=(% 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**
1463 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=?|(% style="background-color:#f2f2f2; width:201px" %)Show 3V3 open time.|(% style="background-color:#f2f2f2; width:116px" %)(((
1464 0
1465 OK
1466 )))
1467 |(% 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" %)(((
1468 OK
1469 default setting
1470 )))
1471 |(% 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" %)(((
1472 OK
1473 )))
1474 |(% 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" %)(((
1475 OK
1476 )))
1477
1478 (% style="color:blue" %)**AT Command: AT+5VT**
1479
1480 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:470px" %)
1481 |=(% 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**
1482 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=?|(% style="background-color:#f2f2f2; width:196px" %)Show 5V open time.|(% style="background-color:#f2f2f2; width:114px" %)(((
1483 0
1484 OK
1485 )))
1486 |(% 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" %)(((
1487 OK
1488 default setting
1489 )))
1490 |(% 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" %)(((
1491 OK
1492 )))
1493 |(% 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" %)(((
1494 OK
1495 )))
1496
1497 (% style="color:blue" %)**AT Command: AT+12VT **
1498
1499 (% style="color:blue" %)**(The v1.2 version is enabled for 1 second by default, and the version below v1.2 is disabled by default)**
1500
1501 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:443px" %)
1502 |=(% 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**
1503 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=?|(% style="background-color:#f2f2f2; width:199px" %)Show 12V open time.|(% style="background-color:#f2f2f2; width:83px" %)(((
1504 0
1505 OK
1506 )))
1507 |(% 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
1508 |(% 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" %)(((
1509 OK
1510 )))
1511
1512 (% style="color:blue" %)**Downlink Command: 0x07**
1513
1514 Format: Command Code (0x07) followed by 3 bytes.
1515
1516 The first byte is which power, the second and third bytes are the time to turn on.
1517
1518 * Example 1: Downlink Payload: 070101F4  **~-~-->**  AT+3V3T=500
1519 * Example 2: Downlink Payload: 0701FFFF   **~-~-->**  AT+3V3T=65535
1520 * Example 3: Downlink Payload: 070203E8  **~-~-->**  AT+5VT=1000
1521 * Example 4: Downlink Payload: 07020000  **~-~-->**  AT+5VT=0
1522 * Example 5: Downlink Payload: 070301F4  **~-~-->**  AT+12VT=500
1523 * Example 6: Downlink Payload: 07030000  **~-~-->**  AT+12VT=0
1524
1525 == 3.4 Set the all data mode ==
1526
1527
1528 Feature, Set the all data mode.
1529
1530 (% style="color:blue" %)**AT Command: AT+ALLDATAMOD**
1531
1532 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1533 |=(% style="background-color:#4F81BD;color:white" %)**Command Example**|=(% style="background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1534 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=?|(% style="background-color:#f2f2f2" %)Show current all data mode|(% style="background-color:#f2f2f2" %)(((
1535 0
1536 OK
1537 )))
1538 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=1|(% style="background-color:#f2f2f2" %)Set all data mode is 1.|(% style="background-color:#f2f2f2" %)OK
1539
1540 (% style="color:blue" %)**Downlink Command: 0xAB**
1541
1542 Format: Command Code (0xAB) followed by 1 bytes.
1543
1544 * Example 1: Downlink Payload: AB 00  ~/~/  AT+ALLDATAMOD=0
1545 * Example 2: Downlink Payload: AB 01  ~/~/  AT+ALLDATAMOD=1
1546
1547 == 3.5 Set the splicing payload for uplink ==
1548
1549
1550 Feature, splicing payload for uplink.
1551
1552 (% style="color:blue" %)**AT Command: AT+DATAUP**
1553
1554 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1555 |=(% 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**
1556 |(% 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" %)(((
1557 0
1558 OK
1559 )))
1560 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =0|(% style="background-color:#f2f2f2; width:266px" %)(((
1561 Set splicing payload for uplink mode is 0.
1562 )))|(% style="background-color:#f2f2f2" %)(((
1563 OK
1564 )))
1565 |(% 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
1566 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =1,20000|(% style="background-color:#f2f2f2; width:266px" %)(((
1567 Set splicing payload for uplink mode is 1, and the uplink interval of each splice to 20000 milliseconds.
1568 )))|(% style="background-color:#f2f2f2" %)OK
1569
1570 (% style="color:blue" %)**Downlink Command: 0xAD**
1571
1572 Format: Command Code (0xAD) followed by 1 bytes or 5 bytes.
1573
1574 * Example 1: Downlink Payload: AD 00  ~/~/  AT+DATAUP=0
1575 * Example 2: Downlink Payload: AD 01  ~/~/  AT+DATAUP =1
1576 * Example 3: Downlink Payload: AD 01 00 00 14  ~/~/  AT+DATAUP =1,20000
1577
1578 This means that the interval is set to 0x000014=20S
1579
1580
1581 == 3.6 Set the payload version ==
1582
1583
1584 Feature, Set the payload version.
1585
1586 (% style="color:blue" %)**AT Command: AT+PAYVER**
1587
1588 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1589 |=(% 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**
1590 |(% style="background-color:#f2f2f2; width:158px" %)AT+PAYVER=?|(% style="background-color:#f2f2f2; width:192px" %)Show current payload version|(% style="background-color:#f2f2f2" %)(((
1591 1
1592 OK
1593 )))
1594 |(% 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
1595
1596 (% style="color:blue" %)**Downlink Command: 0xAE**
1597
1598 Format: Command Code (0xAE) followed by 1 bytes.
1599
1600 * Example 1: Downlink Payload: AE 01  ~/~/  AT+PAYVER=1
1601 * Example 2: Downlink Payload: AE 05  ~/~/  AT+PAYVER=5
1602
1603 === 3.7 Print data entries base on page(Since v1.3.0) ===
1604
1605
1606 Feature: Print the sector data from start page to stop page (max is 416 pages).
1607
1608 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1609
1610 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1611 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1612 |(% style="width:156px" %)(((
1613 AT+PDTA=1,2
1614 Print page 1 to 2
1615 )))|(% style="width:311px" %)(((
1616 Stop Tx and RTP events when read sensor data
1617
1618 8033330 2025/5/14 12:27:32 18 0c 84 01 f1 0d 30 2b 31 2e 30
1619
1620 8033340 38 2b 32 34 2e 36 0d 0a
1621
1622 8033350 2025/5/14 12:29:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1623
1624 8033360 38 2b 32 34 2e 36 0d 0a
1625
1626 8033370 2025/5/14 12:31:32 18 0c 78 01 f1 0d 30 2b 31 2e 30
1627
1628 8033380 38 2b 32 34 2e 36 0d 0a
1629
1630 8033390 2025/5/14 12:33:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1631
1632 80333A0 38 2b 32 34 2e 36 0d 0a
1633
1634 80333B0 2025/5/14 12:35:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1635
1636 80333C0 38 2b 32 34 2e 36 0d 0a
1637
1638
1639 OK
1640 )))
1641
1642 (% style="color:#4f81bd" %)**Downlink Command:**
1643
1644 No downlink commands for feature
1645
1646
1647 === 3.8 Print last few data entries(Since v1.3.0) ===
1648
1649
1650 Feature: Print the last few data entries
1651
1652 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1653
1654 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1655 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1656 |(% style="width:156px" %)(((
1657 AT+PLDTA=10
1658 Print last 10 entries
1659 )))|(% style="width:311px" %)(((
1660 Stop Tx events when read sensor data
1661
1662 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
1663
1664 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
1665
1666 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
1667
1668 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
1669
1670 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
1671
1672 Start Tx events
1673
1674 OK
1675 )))
1676
1677 (% style="color:#4f81bd" %)**Downlink Command:**
1678
1679 No downlink commands for feature
1680
1681
1682 === 3.9 Clear Flash Record(Since v1.3.0) ===
1683
1684
1685 Feature: Clear flash storage for data log feature.
1686
1687 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1688
1689 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1690 |(% 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**
1691 |(% style="width:155px" %)AT+CLRDTA |(% style="width:134px" %)Clear date record|(% style="width:209px" %)(((
1692 Clear all stored sensor data…
1693
1694 OK
1695 )))
1696
1697 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1698
1699 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1700
1701
1702
1703 == 3.10 SDI12 timing(Since v1.3.0) ==
1704
1705
1706 Feature: Get or set the time of SDI12 timing.
1707
1708 [[image:1747289896656-580.png||height="414" width="566"]]
1709
1710 (% style="color:#4f81bd" %)**AT Command: AT+SDITIMING**
1711
1712 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1713 |(% 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**
1714 |(% style="width:155px" %)(((
1715 AT+SDITIMING=13,9
1716
1717
1718 )))|(% style="width:167px" %)Get or set the time of SDI12 timing|(% style="width:177px" %)(((
1719 OK
1720
1721 Default: 13,9
1722 )))
1723
1724 (% style="color:#4f81bd" %)**Downlink Command: 0xA9**
1725
1726 * Example: 0xA90D09  ~/~/  Same as AT+SDITIMING=13,9
1727
1728 = 4. Battery & Power Consumption =
1729
1730
1731 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.
1732
1733 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
1734
1735
1736 = 5. Remote Configure device =
1737
1738 == 5.1 Connect via BLE ==
1739
1740
1741 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/]]
1742
1743
1744 == 5.2 AT Command Set ==
1745
1746
1747
1748 = 6. OTA firmware update =
1749
1750
1751 Please see this link for how to do OTA firmware update.
1752
1753 [[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/]]
1754
1755
1756 = 7. FAQ =
1757
1758 == 7.1 How to use AT Command  via UART to access device? ==
1759
1760
1761 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]]
1762
1763
1764 == 7.2 How to update firmware via UART port? ==
1765
1766
1767 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]]
1768
1769
1770 == 7.3 How to change the LoRa Frequency Bands/Region? ==
1771
1772
1773 You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
1774 When downloading the images, choose the required image file for download. ​
1775
1776
1777 == 7.4 Why is the data uploaded to the LoRaWAN platform node empty and fProt~=0? ==
1778
1779
1780 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.
1781
1782 Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1783
1784 [[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]]
1785
1786 Example:
1787
1788 [[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"]]
1789
1790 Please refer to the following command to fix DR
1791
1792 AT+ADR=0
1793
1794 AT+DR=3
1795
1796 Downlink command:
1797
1798 [[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]]
1799
1800
1801 = 8. ​Order Info =
1802
1803
1804 (((
1805 **Part Number: (% style="color:blue" %)SDI-12-LB-XX-YY(%%) or (% style="color:blue" %)SDI-12-LS-XX-YY(%%)**
1806 )))
1807
1808 (((
1809 (% style="color:blue" %)**XX**(%%): The default frequency band
1810 )))
1811
1812 (((
1813 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1814 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1815 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1816 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1817 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1818 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1819 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1820 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1821 )))
1822
1823 (% style="color:blue" %)**YY: **(%%)The grand connector hole size
1824
1825 * M12: M12 hole
1826 * M16: M16 hole
1827
1828 = 9. Packing Info =
1829
1830
1831 (% style="color:#037691" %)**Package Includes**:
1832
1833 * SDI-12-LB or SDI-12-LS SDI-12 to LoRaWAN Converter x 1
1834
1835 (% style="color:#037691" %)**Dimension and weight**:
1836
1837 * Device Size: cm
1838 * Device Weight: g
1839 * Package Size / pcs : cm
1840 * Weight / pcs : g
1841
1842 = 10. ​Support =
1843
1844
1845 * 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.
1846
1847 * 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]]