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Version 150.2 by Mengting Qiu on 2025/05/16 10:12
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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
689 == 2.4 Uplink Payload ==
690
691 === 2.4.1 Device Payload, FPORT~=5 ===
692
693
694 Include device configure status. Once SDI-12-LB/LS Joined the network, it will uplink this message to the server.
695
696 Users can also use the downlink command(0x26 01) to ask SDI-12-LB/LS to resend this uplink.
697
698 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
699 |(% colspan="6" style="background-color:#4f81bd; color:white" %)**Device Status (FPORT=5)**
700 |(% 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**
701 |(% 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
702
703 Example parse in TTNv3
704
705 [[image:1675215946738-635.png||_mstalt="297778"]]
706
707
708 (% style="color:#037691" %)**Sensor Model**(%%): For SDI-12-LB/LS, this value is 0x17
709
710 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
711
712 (% style="color:#037691" %)**Frequency Band**:
713
714 0x01: EU868
715
716 0x02: US915
717
718 0x03: IN865
719
720 0x04: AU915
721
722 0x05: KZ865
723
724 0x06: RU864
725
726 0x07: AS923
727
728 0x08: AS923-1
729
730 0x09: AS923-2
731
732 0x0a: AS923-3
733
734 0x0b: CN470
735
736 0x0c: EU433
737
738 0x0d: KR920
739
740 0x0e: MA869
741
742
743 (% style="color:#037691" %)**Sub-Band**:
744
745 AU915 and US915:value 0x00 ~~ 0x08
746
747 CN470: value 0x0B ~~ 0x0C
748
749 Other Bands: Always 0x00
750
751
752 (% style="color:#037691" %)**Battery Info**:
753
754 Check the battery voltage.
755
756 Ex1: 0x0B45 = 2885mV
757
758 Ex2: 0x0B49 = 2889mV
759
760
761 === 2.4.2 Uplink Payload, FPORT~=2 ===
762
763
764 There are different cases for uplink. See below
765
766 * SDI-12 Debug Command return: FPORT=100
767
768 * Periodically Uplink: FPORT=2
769
770 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
771 |=(% style="width: 90px;background-color:#4F81BD;color:white" %)(((
772 **Size(bytes)**
773 )))|=(% 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**
774 |(% style="width:93px" %)Value|(% style="width:83px" %)(((
775 Battery(mV)
776 &
777 Interrupt_Flag
778 )))|(% style="width:91px" %)[[PAYLOAD_VER>>||anchor="H3.6Setthepayloadversion"]]|(% style="width:212px" %)(((
779 If the valid payload is too long and exceed the maximum support.
780 Payload length in server,server will show payload not provided in the LoRaWAN server.
781 )))
782
783 [[image:1675216282284-923.png||_mstalt="295633"]]
784
785
786 === 2.4.3 Battery Info ===
787
788
789 Check the battery voltage for SDI-12-LB/LS.
790
791 Ex1: 0x0B45 = 2885mV
792
793 Ex2: 0x0B49 = 2889mV
794
795
796 === 2.4.4 Interrupt Pin ===
797
798
799 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"]].
800
801 **Example:**
802
803 Ex1: 0x0B45:0x0B&0x80= 0x00    Normal uplink packet.
804
805 Ex2: 0x8B49:0x8B&0x80= 0x80    Interrupt Uplink Packet.
806
807
808 === 2.4.5 Payload version ===
809
810
811 The version number of the payload, mainly used for decoding. The default is 01.
812
813
814 === 2.4.6 ​Decode payload in The Things Network ===
815
816
817 While using TTN network, you can add the payload format to decode the payload.
818
819 [[image:1675216779406-595.png||_mstalt="298376"]]
820
821
822 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.
823
824 SDI-12-LB/LS TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
825
826
827 == 2.5 Uplink Interval ==
828
829
830 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:
831
832 [[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]]
833
834
835 == 2.6 Examples To Set SDI commands ==
836
837 === 2.6.1 Examples 1 ~-~- General Example ===
838
839
840 COM port and SDI-12 sensor communication converted to SDI-12-LB/LS and SDI-12 sensor communication.
841
842 [[image:image-20230222143809-1.png||_mstalt="429962" height="564" width="729"]]
843
844
845 (% style="color:blue" %)**1) The AT+COMMANDx command is applied to the red arrow part, and sends the SDI12 command to the SDI12 sensor:**
846
847 a. Send the first command and get the first reply：
848
849 (% style="color:#037691" %)**AT+COMMANDx=1I!,0,0,1**
850
851 b. Send the second command and get the second reply：
852
853 (% style="color:#037691" %)**AT+COMMANDx=2I!,0,0,1**
854
855 c. Send the third command and get the third reply：
856
857 (% style="color:#037691" %)**AT+COMMANDx=3I!,0,0,1**
858
859 d. Send the fourth command and get the fourth reply：
860
861 (% style="color:#037691" %)**AT+COMMANDx=4I!,0,0,1**
862
863 e. Send the fifth command plus the sixth command, get the sixth reply：
864
865 (% style="color:#037691" %)**AT+COMMANDx=1M!,2,1,1**
866
867 f. Send the seventh command plus the eighth command, get the eighth reply：
868
869 (% style="color:#037691" %)**AT+COMMANDx=2M!,2,1,1**
870
871 g. Send the ninth command plus the tenth command, get the tenth reply：
872
873 (% style="color:#037691" %)**AT+COMMANDx=3M!,1,1,1**
874
875 h. Send the eleventh command plus the twelfth command, get the twelfth reply：
876
877 (% style="color:#037691" %)**AT+COMMANDx=4M!,1,1,1**
878
879
880 (% style="color:blue" %)**2) The AT+DATACUTx command is applied to the green arrow part, receiving and cut out data from the SDI12 sensor:**
881
882 a. The first reply, all 34 characters: ”113TRUEBNERSMT100038220303182331<CR><LF>”
883
884 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=34,2,1~~34**(% style="color:#037691" %);
885
886 b. The sixth reply, all 31 characters: "1+19210+1.04+0.00+22.49+11.75<CR><LF>"
887
888 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
889
890 c. The eighth reply, all 31 characters: "2+18990+1.08+0.00+22.24+11.80<CR><LF>"
891
892 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=31,2,1~~31**(% style="color:#037691" %);
893
894 d. The tenth reply, all 15 characters: "3-2919.8+24.0<CR><LF>"
895
896 Cut out all characters: (% _mstmutation="1" style="color:#037691" %)**AT+ALLDATAMOD=1 or AT+DATACUTx=15,2,1~~15**(% style="color:#037691" %);
897
898 e. The twelfth reply, all 25 characters: "4+30.8+22.84+4.7+954.38<CR><LF>"
899
900 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"**.
901
902
903 === 2.6.2 Example 2 ~-~- Connect to Hygrovue10 ===
904
905 ==== 2.6.2.1 Reference Manual and Command ====
906
907
908 * [[Hygrovue10 Product Page>>https://www.campbellsci.com/hygrovue10]]
909
910 * Commands to be used in PC and output.
911
912 ~1. check device address
913
914 2. change device address
915
916 3. check device ID
917
918 4. start measure
919
920 5. Get Meausre result
921
922 [[image:image-20230603120209-2.png||height="281" width="267"]]
923
924
925 ==== 2.6.2.2 Hardware Connection to SDI-12-LB/LS ====
926
927
928 [[image:image-20230603120515-3.png]]
929
930
931 ==== 2.6.2.3 Commands set in SDI-12-LB/LS and uplink payload ====
932
933
934 [[image:image-20230603120648-4.png]]
935
936 [[image:image-20230603120726-5.png]]
937
938
939 **Data in TTN:**
940
941 [[image:image-20230603120859-6.png||height="118" width="1285"]]
942
943
944 === 2.6.3 Example 3 ~-~- Connect to SIL-400 ===
945
946 ==== 2.6.3.1 Reference Manual and Command ====
947
948
949 * [[SIL-400 Product Page>>https://www.apogeeinstruments.com/sil-411-commercial-grade-sdi-12-digital-output-standard-field-of-view-infrared-radiometer-sensor/]]
950
951 * Commands to be used in PC and output.
952
953 ~1. check device address
954
955 2. change device address
956
957 3. check device ID
958
959 4. start measure
960
961 5. Get Meausre result
962
963 [[image:image-20230603121606-7.png||height="242" width="307"]]
964
965
966 ==== 2.6.3.2 Hardware Connection to SDI-12-LB/LS ====
967
968
969 [[image:image-20230603121643-8.png||height="442" width="656"]]
970
971
972 ==== 2.6.3.3 Commands set in SDI-12-LB/LS and uplink payload ====
973
974
975 [[image:image-20230603121721-9.png]]
976
977 [[image:image-20230628090323-1.png||height="414" width="694"]]
978
979 Data in TTN:
980
981 [[image:image-20230603121826-11.png||height="155" width="1104"]]
982
983
984 === 2.6.4 Example 4 ~-~- Connect to TEROS-12 ===
985
986 ==== 2.6.4.1 Reference Manual and Command ====
987
988
989 * [[TEROS-12 Product Page>>https://www.metergroup.com/en/meter-environment/products/teros-12-soil-moisture-sensor]]
990
991 * Commands to be used in PC and output.
992
993 1.check device address
994
995 2.change device address
996
997 3.check device ID
998
999 4.start measure
1000
1001 5.Get Meausre result
1002
1003 [[image:image-20230603122248-16.png||height="196" width="198"]]
1004
1005
1006 ==== 2.6.4.2 Hardware Connection to SDI-12-LB/LS ====
1007
1008
1009 [[image:image-20230603122212-15.png||height="502" width="667"]]
1010
1011
1012 ==== 2.6.4.3 Commands set in SDI-12-LB/LS and uplink payload ====
1013
1014
1015 [[image:image-20230603122040-12.png]]
1016
1017 [[image:image-20230603122109-13.png||height="469" width="762"]]
1018
1019
1020 **Data in TTN:**
1021
1022 [[image:image-20230603122139-14.png||height="148" width="1128"]]
1023
1024
1025 === 2.6.5 Example 5 ~-~- Connect to SIL-400/TEROS-12 & Hygrovue10 ===
1026
1027 ==== 2.6.5.1 Important Notice! ====
1028
1029
1030 * The product page and reference command see above example 2,3,4
1031
1032 * 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.
1033
1034 * 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.
1035
1036 * If these SDI-12 sensors are powered by external power source. It will add 300uA in the total current in SDI-12-LB/LS.
1037
1038 ==== 2.6.5.2 Hardware Connection to SDI-12-LB/LS ====
1039
1040
1041 [[image:image-20230603122508-17.png||height="526" width="742"]]
1042
1043
1044 ==== 2.6.5.3 Commands set in SDI-12-LB/LS and uplink payload ====
1045
1046
1047 [[image:image-20230603122549-18.png]]
1048
1049 [[image:image-20230603122623-19.png||height="483" width="1121"]]
1050
1051
1052 **Data in TTN:**
1053
1054 [[image:image-20230603122719-20.png||height="151" width="1179"]]
1055
1056
1057 === 2.6.6 Example 6 ~-~- Connect to ENTELECHY-EP_SDI-12 ===
1058
1059 ==== 2.6.6.1 Reference Manual and Command ====
1060
1061
1062 * [[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]]
1063
1064 * Commands to be used in PC and output.
1065
1066 1.check device address
1067
1068 2.change device address
1069
1070 3.check device ID
1071
1072 4.start measure
1073
1074 5.Get Meausre result
1075
1076
1077 [[image:image-20230627174559-3.png]]
1078
1079
1080 ==== 2.6.6.2 Hardware Connection to SDI-12-LB/LS ====
1081
1082
1083 [[image:image-20230627174446-2.png]]
1084
1085
1086 ==== 2.6.6.3 Commands set in SDI-12-LB/LS and uplink payload ====
1087
1088
1089 [[image:image-20230627175513-4.png||height="596" width="576"]]
1090
1091 [[image:image-20230627175736-5.png||height="429" width="693"]]
1092
1093
1094 **Data in TTN:**
1095
1096 [[image:image-20230627180303-6.png||height="292" width="1171"]]
1097
1098
1099 === 2.6.7 Example 7 ~-~- Connect to GroPoint Profile-8 (SDI-12 Version) ===
1100
1101 ==== 2.6.7.1  Reference Manual and Command ====
1102
1103
1104 * [[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]]
1105
1106 * Commands to be used in PC and output.
1107
1108 1. check device address
1109 1. change device address
1110 1. check device ID
1111 1. start measure
1112 1. Get Meausre result
1113
1114 [[image:image-20240423143921-1.png]]
1115
1116
1117 ==== 2.6.7.2 Hardware Connection to SDI-12-LB/LS ====
1118
1119
1120 (% 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.)**
1121
1122 [[image:image-20240423145522-2.png||height="345" width="400"]]
1123
1124
1125 ==== 2.6.7.3 Commands set in SDI-12-LB/LS and uplink payload ====
1126
1127 [[image:image-20240423151202-3.png]]
1128
1129 (% class="wikigeneratedid" id="H" %)
1130 [[image:image-20240423162851-6.png||height="251" width="935"]]
1131
1132
1133 DATA in TTN:
1134
1135 [[image:image-20240423162322-4.png||height="269" width="933"]]
1136
1137
1138 === 2.6.8 Example 8 ~-~- Connect to Acclima TDR Soil Moisture Sensor ===
1139
1140 ==== 2.6.8.1  Reference Manual and Command ====
1141
1142
1143 * [[Acclima TDR Soil Moisture Sensor User Manual>>url:https://acclima.com/tdr-soil-moisture-sensor-user-manual/]]
1144
1145 * Commands to be used in PC and output.
1146
1147 1. check device address
1148 1. change device address
1149 1. check device ID
1150 1. start measure
1151 1. Get Meausre result
1152
1153 [[image:image-20240903152650-3.png]]
1154
1155 [[image:image-20240903152627-2.png]]
1156
1157
1158 ==== 2.6.8.2 Hardware Connection to SDI-12-LB/LS ====
1159
1160
1161 (% 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.)**
1162
1163 [[image:image-20240903153004-5.png||height="358" width="660"]]
1164
1165
1166 ==== 2.6.8.3 Commands set in SDI-12-LB/LS and uplink payload ====
1167
1168
1169 [[image:image-20240903153258-6.png]]
1170
1171 [[image:image-20240903153627-7.png]]
1172
1173 DATA in TTN:
1174
1175 [[image:image-20240903154020-10.png||height="467" width="961"]]
1176
1177
1178 == 2.7 Frequency Plans ==
1179
1180
1181 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.
1182
1183 [[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/]]
1184
1185
1186 == 2.8 Firmware Change Log ==
1187
1188
1189 **Firmware download link:**
1190
1191 [[https:~~/~~/www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0>>https://www.dropbox.com/sh/qrbgbikb109lkiv/AACBR-v_ZhZAMengcY7Nsa1ja?dl=0]]
1192
1193
1194
1195 == 2.9 Datalog Feature(Since v1.3.0) ==
1196
1197
1198 (((
1199 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.
1200 )))
1201
1202
1203 === 2.9.1 Ways to get datalog via LoRaWAN ===
1204
1205
1206 There are two methods:
1207
1208 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.8.4Pollsensorvalue"]] for specified time range.
1209
1210
1211 (% 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.
1212
1213
1214 (% style="color:red" %)**Note for method 2:**
1215
1216 * a) SDI-12-LB will do an ACK check for data records sending to make sure every data arrive server.
1217 * 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.
1218
1219 === 2.9.2 Unix TimeStamp ===
1220
1221
1222 SDI-12-LB uses Unix TimeStamp format based on
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-20220523001219-11.png?width=627&height=97&rev=1.1||alt="image-20220523001219-11.png"]]
1225
1226
1227 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
1228
1229 Below is the converter example
1230
1231 [[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"]]
1232
1233 So, we can use AT+TIMESTAMP=1742889625 or downlink 3067E26299 to set the current time 2025 – March ~-~- 25 Tuesday  08:00:25
1234
1235
1236 === 2.9.3 Set Device Time ===
1237
1238
1239 (((
1240 (% style="color:blue" %)**There are two ways to set device's time:**
1241 )))
1242
1243 (((
1244 **1.  Through LoRaWAN MAC Command (Default settings)**
1245 )))
1246
1247 (((
1248 User need to set SYNCMOD=1 to enable sync time via MAC command.
1249 )))
1250
1251 (((
1252 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).
1253 )))
1254
1255 (((
1256 (% 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.**
1257 )))
1258
1259
1260 (((
1261 **2. Manually Set Time**
1262 )))
1263
1264 (((
1265 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
1266 )))
1267
1268
1269 === 2.9.4 Poll sensor value ===
1270
1271
1272 User can poll sensor value based on timestamps from the server. Below is the downlink command.
1273
1274 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:438.778px" %)
1275 |(% 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**
1276 |(% style="width:58px" %)31|(% style="width:123px" %)Timestamp start|(% style="width:114px" %)Timestamp end|(% style="width:137px" %)(((
1277 Uplink Interval(range 5~~255s)
1278 )))
1279
1280 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.
1281
1282 For example, downlink command (% _mstmutation="1" %)**31 68253B6E 68253E23 05**(%%)
1283
1284 Is to check 2025/05/15 00:55:10 to 2025/05/15 01:06:43's data
1285
1286 Uplink Internal =5s, means SDI-12-LB will send one packet every 5s.
1287
1288
1289 === 2.9.5 Datalog Uplink payload ===
1290
1291
1292 The Datalog poll reply uplink will use below payload format.
1293
1294 **Retrieval data payload:**
1295
1296 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:480px" %)
1297 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
1298 **Size(bytes)**
1299 )))|=(% 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**
1300 |(% style="width:97px" %)Value|(% style="width:104px" %)Unix Time Stamp|(% style="width:109px" %)Payload Length|(% style="width:165px" %)Data returned by the sensor
1301
1302 **Example:**
1303
1304 If SDI-12-LB has below data inside Flash:
1305
1306 (Soil sensors using the SDI-12 protocol are used for testing.)
1307
1308 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1309 |=(% 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**
1310 |(% style="width:89px" %)(((
1311 0001
1312 )))|(% style="width:98px" %)(((
1313 2025/3/25 08:09:30
1314 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1315 0c a8
1316 )))|(% style="width:92px" %)01|(% style="width:131px" %)(((
1317 08 21
1318 )))
1319 |(% style="width:89px" %)0002|(% style="width:98px" %)(((
1320 2025/3/25 08:10:30
1321 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1322 0c ae
1323 )))|(% style="width:92px" %)01|(% style="width:131px" %)(((
1324 08 22
1325 )))
1326 |(% style="width:89px" %)0003|(% style="width:98px" %)(((
1327 2025/3/25 08:11:30
1328 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1329 |(% style="width:89px" %)0004|(% style="width:98px" %)(((
1330 2025/3/25 08:12:30
1331 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1332 |(% style="width:89px" %)0005|(% style="width:98px" %)(((
1333 2025/3/25 08:13:30
1334 )))|(% style="width:82px" %)5|(% style="width:86px" %)(((
1335 0c b4
1336 )))|(% style="width:92px" %)01|(% style="width:131px" %)08 23
1337 |(% style="width:89px" %)0006|(% style="width:98px" %)(((
1338 2025/3/25 08:14:30
1339 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1340 |(% style="width:89px" %)0007|(% style="width:98px" %)(((
1341 2025/3/25 08:15:30
1342 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c b4|(% style="width:92px" %)01|(% style="width:131px" %)08 23
1343 |(% style="width:89px" %)0008|(% style="width:98px" %)(((
1344 2025/3/25 08:16:30
1345 )))|(% style="width:82px" %)5|(% style="width:86px" %)0c ae|(% style="width:92px" %)01|(% style="width:131px" %)08 22
1346
1347 If user sends below downlink command: (% style="background-color:yellow" %)3168253B6E68253E2305
1348
1349 Where : Start time: (% _mstmutation="1" %)68253B6E (%%)= time 2025/05/15 00:55:10
1350
1351 Stop time: (% _mstmutation="1" %)68253E23 (%%)= time 2025/05/15 01:06:43
1352
1353
1354 **SDI-12-LB will uplink this payload.**
1355
1356 **68253B6E 12 0C7801F10D302B312E31372B32362E390D0A **68253C5D120C7801F10D302B312E31372B32372E340D0A68253D33120C7201F10D302B312E31352B32382E390D0A68253DAB120C7201F10D302B312E31342B32392E340D0A68253E23120C7201F10D302B312E31332B33302E300D0A
1357
1358
1359 Where the first 23 bytes is for the first entry:
1360
1361 **68253B6E 12 0C7801F10D302B312E31372B32362E390D0A**
1362
1363 Unix Time Stamp: 68253B6E(H)=1747270510(D)  ~-~->  time=2025-05-15 8:55:00
1364
1365 Payload Length: 0x12(H)=18 bytes
1366
1367 Battery voltage: 0x0C78(H)=3192 mV
1368
1369 Payload Version:  01
1370
1371 Value: For the distance sensor used for testing, this value is the mm distance value, 0xF10D302B312E31372B32362E390D0A(H)
1372
1373
1374
1375 = 3. Configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink =
1376
1377
1378 Use can configure SDI-12-LB/LS via AT Command or LoRaWAN Downlink.
1379
1380 * AT Command Connection: See [[FAQ>>||anchor="H7.FAQ"]].
1381 * LoRaWAN Downlink instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
1382
1383 There are two kinds of commands to configure SDI-12-LB/LS, they are:
1384
1385 * (% style="color:blue" %)**General Commands**.
1386
1387 These commands are to configure:
1388
1389 * General system settings like: uplink interval.
1390 * LoRaWAN protocol & radio related command.
1391
1392 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
1393
1394 [[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/]]
1395
1396
1397 * (% style="color:blue" %)**Commands special design for SDI-12-LB/LS**
1398
1399 These commands only valid for SDI-12-LB/LS, as below:
1400
1401
1402 == 3.1 Set Transmit Interval Time ==
1403
1404
1405 Feature: Change LoRaWAN End Node Transmit Interval.
1406
1407 (% style="color:blue" %)**AT Command: AT+TDC**
1408
1409 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1410 |=(% 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**
1411 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=?|(% style="background-color:#f2f2f2; width:166px" %)Show current transmit Interval|(% style="background-color:#f2f2f2" %)(((
1412 30000
1413 OK
1414 the interval is 30000ms = 30s
1415 )))
1416 |(% style="background-color:#f2f2f2; width:157px" %)AT+TDC=60000|(% style="background-color:#f2f2f2; width:166px" %)Set Transmit Interval|(% style="background-color:#f2f2f2" %)(((
1417 OK
1418 Set transmit interval to 60000ms = 60 seconds
1419 )))
1420
1421 (% style="color:blue" %)**Downlink Command: 0x01**
1422
1423 Format: Command Code (0x01) followed by 3 bytes time value.
1424
1425 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1426
1427 * Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1428 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
1429
1430 == 3.2 Set Interrupt Mode ==
1431
1432
1433 Feature, Set Interrupt mode for GPIO_EXIT.
1434
1435 (% style="color:blue" %)**AT Command: AT+INTMOD**
1436
1437 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1438 |=(% 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**
1439 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=?|(% style="background-color:#f2f2f2; width:196px" %)Show current interrupt mode|(% style="background-color:#f2f2f2; width:157px" %)(((
1440 0
1441 OK
1442 the mode is 0 =Disable Interrupt
1443 )))
1444 |(% style="background-color:#f2f2f2; width:154px" %)AT+INTMOD=2|(% style="background-color:#f2f2f2; width:196px" %)(((
1445 Set Transmit Interval
1446 0. (Disable Interrupt),
1447 ~1. (Trigger by rising and falling edge)
1448 2. (Trigger by falling edge)
1449 3. (Trigger by rising edge)
1450 )))|(% style="background-color:#f2f2f2; width:157px" %)OK
1451
1452 (% style="color:blue" %)**Downlink Command: 0x06**
1453
1454 Format: Command Code (0x06) followed by 3 bytes.
1455
1456 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1457
1458 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
1459 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
1460
1461 == 3.3 Set the output time ==
1462
1463
1464 Feature, Control the output 3V3 , 5V or 12V.
1465
1466 (% style="color:blue" %)**AT Command: AT+3V3T**
1467
1468 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:474px" %)
1469 |=(% 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**
1470 |(% style="background-color:#f2f2f2; width:154px" %)AT+3V3T=?|(% style="background-color:#f2f2f2; width:201px" %)Show 3V3 open time.|(% style="background-color:#f2f2f2; width:116px" %)(((
1471 0
1472 OK
1473 )))
1474 |(% 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" %)(((
1475 OK
1476 default setting
1477 )))
1478 |(% 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" %)(((
1479 OK
1480 )))
1481 |(% 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" %)(((
1482 OK
1483 )))
1484
1485 (% style="color:blue" %)**AT Command: AT+5VT**
1486
1487 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:470px" %)
1488 |=(% 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**
1489 |(% style="background-color:#f2f2f2; width:155px" %)AT+5VT=?|(% style="background-color:#f2f2f2; width:196px" %)Show 5V open time.|(% style="background-color:#f2f2f2; width:114px" %)(((
1490 0
1491 OK
1492 )))
1493 |(% 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" %)(((
1494 OK
1495 default setting
1496 )))
1497 |(% 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" %)(((
1498 OK
1499 )))
1500 |(% 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" %)(((
1501 OK
1502 )))
1503
1504 (% style="color:blue" %)**AT Command: AT+12VT **
1505
1506 (% style="color:blue" %)**(The v1.2 version is enabled for 1 second by default, and the version below v1.2 is disabled by default)**
1507
1508 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:443px" %)
1509 |=(% 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**
1510 |(% style="background-color:#f2f2f2; width:156px" %)AT+12VT=?|(% style="background-color:#f2f2f2; width:199px" %)Show 12V open time.|(% style="background-color:#f2f2f2; width:83px" %)(((
1511 0
1512 OK
1513 )))
1514 |(% 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
1515 |(% 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" %)(((
1516 OK
1517 )))
1518
1519 (% style="color:blue" %)**Downlink Command: 0x07**
1520
1521 Format: Command Code (0x07) followed by 3 bytes.
1522
1523 The first byte is which power, the second and third bytes are the time to turn on.
1524
1525 * Example 1: Downlink Payload: 070101F4  **~-~-->**  AT+3V3T=500
1526 * Example 2: Downlink Payload: 0701FFFF   **~-~-->**  AT+3V3T=65535
1527 * Example 3: Downlink Payload: 070203E8  **~-~-->**  AT+5VT=1000
1528 * Example 4: Downlink Payload: 07020000  **~-~-->**  AT+5VT=0
1529 * Example 5: Downlink Payload: 070301F4  **~-~-->**  AT+12VT=500
1530 * Example 6: Downlink Payload: 07030000  **~-~-->**  AT+12VT=0
1531
1532 == 3.4 Set the all data mode ==
1533
1534
1535 Feature, Set the all data mode.
1536
1537 (% style="color:blue" %)**AT Command: AT+ALLDATAMOD**
1538
1539 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1540 |=(% style="background-color:#4F81BD;color:white" %)**Command Example**|=(% style="background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1541 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=?|(% style="background-color:#f2f2f2" %)Show current all data mode|(% style="background-color:#f2f2f2" %)(((
1542 0
1543 OK
1544 )))
1545 |(% style="background-color:#f2f2f2" %)AT+ALLDATAMOD=1|(% style="background-color:#f2f2f2" %)Set all data mode is 1.|(% style="background-color:#f2f2f2" %)OK
1546
1547 (% style="color:blue" %)**Downlink Command: 0xAB**
1548
1549 Format: Command Code (0xAB) followed by 1 bytes.
1550
1551 * Example 1: Downlink Payload: AB 00  ~/~/  AT+ALLDATAMOD=0
1552 * Example 2: Downlink Payload: AB 01  ~/~/  AT+ALLDATAMOD=1
1553
1554 == 3.5 Set the splicing payload for uplink ==
1555
1556
1557 Feature, splicing payload for uplink.
1558
1559 (% style="color:blue" %)**AT Command: AT+DATAUP**
1560
1561 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1562 |=(% 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**
1563 |(% 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" %)(((
1564 0
1565 OK
1566 )))
1567 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =0|(% style="background-color:#f2f2f2; width:266px" %)(((
1568 Set splicing payload for uplink mode is 0.
1569 )))|(% style="background-color:#f2f2f2" %)(((
1570 OK
1571 )))
1572 |(% 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
1573 |(% style="background-color:#f2f2f2; width:154px" %)AT+DATAUP =1,20000|(% style="background-color:#f2f2f2; width:266px" %)(((
1574 Set splicing payload for uplink mode is 1, and the uplink interval of each splice to 20000 milliseconds.
1575 )))|(% style="background-color:#f2f2f2" %)OK
1576
1577 (% style="color:blue" %)**Downlink Command: 0xAD**
1578
1579 Format: Command Code (0xAD) followed by 1 bytes or 5 bytes.
1580
1581 * Example 1: Downlink Payload: AD 00  ~/~/  AT+DATAUP=0
1582 * Example 2: Downlink Payload: AD 01  ~/~/  AT+DATAUP =1
1583 * Example 3: Downlink Payload: AD 01 00 00 14  ~/~/  AT+DATAUP =1,20000
1584
1585 This means that the interval is set to 0x000014=20S
1586
1587
1588 == 3.6 Set the payload version ==
1589
1590
1591 Feature, Set the payload version.
1592
1593 (% style="color:blue" %)**AT Command: AT+PAYVER**
1594
1595 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:437px" %)
1596 |=(% 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**
1597 |(% style="background-color:#f2f2f2; width:158px" %)AT+PAYVER=?|(% style="background-color:#f2f2f2; width:192px" %)Show current payload version|(% style="background-color:#f2f2f2" %)(((
1598 1
1599 OK
1600 )))
1601 |(% 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
1602
1603 (% style="color:blue" %)**Downlink Command: 0xAE**
1604
1605 Format: Command Code (0xAE) followed by 1 bytes.
1606
1607 * Example 1: Downlink Payload: AE 01  ~/~/  AT+PAYVER=1
1608 * Example 2: Downlink Payload: AE 05  ~/~/  AT+PAYVER=5
1609
1610 === 3.7 Print data entries base on page(Since v1.3.0) ===
1611
1612
1613 Feature: Print the sector data from start page to stop page (max is 416 pages).
1614
1615 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1616
1617 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1618 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1619 |(% style="width:156px" %)(((
1620 AT+PDTA=1,2
1621 Print page 1 to 2
1622 )))|(% style="width:311px" %)(((
1623 Stop Tx and RTP events when read sensor data
1624
1625 8033330 2025/5/14 12:27:32 18 0c 84 01 f1 0d 30 2b 31 2e 30
1626
1627 8033340 38 2b 32 34 2e 36 0d 0a
1628
1629 8033350 2025/5/14 12:29:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1630
1631 8033360 38 2b 32 34 2e 36 0d 0a
1632
1633 8033370 2025/5/14 12:31:32 18 0c 78 01 f1 0d 30 2b 31 2e 30
1634
1635 8033380 38 2b 32 34 2e 36 0d 0a
1636
1637 8033390 2025/5/14 12:33:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1638
1639 80333A0 38 2b 32 34 2e 36 0d 0a
1640
1641 80333B0 2025/5/14 12:35:32 18 0c 72 01 f1 0d 30 2b 31 2e 30
1642
1643 80333C0 38 2b 32 34 2e 36 0d 0a
1644
1645
1646 OK
1647 )))
1648
1649 (% style="color:#4f81bd" %)**Downlink Command:**
1650
1651 No downlink commands for feature
1652
1653
1654 === 3.8 Print last few data entries(Since v1.3.0) ===
1655
1656
1657 Feature: Print the last few data entries
1658
1659 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1660
1661 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1662 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1663 |(% style="width:156px" %)(((
1664 AT+PLDTA=10
1665 Print last 10 entries
1666 )))|(% style="width:311px" %)(((
1667 Stop Tx events when read sensor data
1668
1669 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
1670
1671 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
1672
1673 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
1674
1675 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
1676
1677 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
1678
1679 Start Tx events
1680
1681 OK
1682 )))
1683
1684 (% style="color:#4f81bd" %)**Downlink Command:**
1685
1686 No downlink commands for feature
1687
1688
1689 === 3.9 Clear Flash Record(Since v1.3.0) ===
1690
1691
1692 Feature: Clear flash storage for data log feature.
1693
1694 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1695
1696 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1697 |(% 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**
1698 |(% style="width:155px" %)AT+CLRDTA |(% style="width:134px" %)Clear date record|(% style="width:209px" %)(((
1699 Clear all stored sensor data…
1700
1701 OK
1702 )))
1703
1704 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1705
1706 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1707
1708
1709
1710 == 3.10 SDI12 timing(Since v1.3.0) ==
1711
1712
1713 Feature: Get or set the time of SDI12 timing.
1714
1715 [[image:1747289896656-580.png||height="414" width="566"]]
1716
1717 (% style="color:#4f81bd" %)**AT Command: AT+SDITIMING**
1718
1719 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1720 |(% 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**
1721 |(% style="width:155px" %)(((
1722 AT+SDITIMING=13,9
1723
1724
1725 )))|(% style="width:167px" %)Get or set the time of SDI12 timing|(% style="width:177px" %)(((
1726 OK
1727
1728 Default: 13,9
1729 )))
1730
1731 (% style="color:#4f81bd" %)**Downlink Command: 0xA9**
1732
1733 * Example: 0xA90D09  ~/~/  Same as AT+SDITIMING=13,9
1734
1735 = 4. Battery & Power Consumption =
1736
1737
1738 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.
1739
1740 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
1741
1742
1743 = 5. Remote Configure device =
1744
1745 == 5.1 Connect via BLE ==
1746
1747
1748 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/]]
1749
1750
1751 == 5.2 AT Command Set ==
1752
1753
1754
1755 = 6. OTA firmware update =
1756
1757
1758 Please see this link for how to do OTA firmware update.
1759
1760 [[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/]]
1761
1762
1763 = 7. FAQ =
1764
1765 == 7.1 How to use AT Command  via UART to access device? ==
1766
1767
1768 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]]
1769
1770
1771 == 7.2 How to update firmware via UART port? ==
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 == 7.3 How to change the LoRa Frequency Bands/Region? ==
1778
1779
1780 You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]].
1781 When downloading the images, choose the required image file for download. ​
1782
1783
1784 == 7.4 Why is the data uploaded to the LoRaWAN platform node empty and fProt~=0? ==
1785
1786
1787 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.
1788
1789 Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1790
1791 [[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]]
1792
1793 Example:
1794
1795 [[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"]]
1796
1797 Please refer to the following command to fix DR
1798
1799 AT+ADR=0
1800
1801 AT+DR=3
1802
1803 Downlink command:
1804
1805 [[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]]
1806
1807
1808 = 8. ​Order Info =
1809
1810
1811 (((
1812 **Part Number: (% style="color:blue" %)SDI-12-LB-XX-YY(%%) or (% style="color:blue" %)SDI-12-LS-XX-YY(%%)**
1813 )))
1814
1815 (((
1816 (% style="color:blue" %)**XX**(%%): The default frequency band
1817 )))
1818
1819 (((
1820 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1821 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1822 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1823 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1824 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1825 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1826 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1827 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1828 )))
1829
1830 (% style="color:blue" %)**YY: **(%%)The grand connector hole size
1831
1832 * M12: M12 hole
1833 * M16: M16 hole
1834
1835 = 9. Packing Info =
1836
1837
1838 (% style="color:#037691" %)**Package Includes**:
1839
1840 * SDI-12-LB or SDI-12-LS SDI-12 to LoRaWAN Converter x 1
1841
1842 (% style="color:#037691" %)**Dimension and weight**:
1843
1844 * Device Size: cm
1845 * Device Weight: g
1846 * Package Size / pcs : cm
1847 * Weight / pcs : g
1848
1849 = 10. ​Support =
1850
1851
1852 * 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.
1853
1854 * 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]]